Summer Milky Way

Summer Milky Way Cygnus constellation
Simple tripod photo - Canon 40D ISO 1200

Summer Milky Way Cygnus constellation
Simple tripod photo - Canon 40D ISO 1200

Celestron NexStar 4SE and constellations

These photos show a simple way to recognize bright constellations in the night sky by combining a foreground telescope, natural landscape, and celestial patterns in a single frame.

The images were taken during a Full Moon. Moonlight provided natural illumination for the foreground, making the Celestron NexStar 4SE telescope and surrounding forest clearly visible without any artificial lighting. At the same time, the sky remained bright enough to record well-known constellations in the background.

The idea was to combine three elements: the observing instrument in the foreground, the natural landscape, and recognizable celestial constellations in the night sky. This visually connects amateur astronomy equipment with the real star patterns it is designed to observe.

Camera & settings:
Canon EOS 40D
30 seconds · ISO 200 · fixed tripod
Full Moon illumination

Celestron NexStar 4SE and Ursa Major constellation

In this image, the Ursa Major constellation is visible above the telescope. Ursa Major is one of the most recognizable constellations in the northern sky and contains the famous Big Dipper, often used as a starting point for learning star navigation.

Celestron NexStar 4SE and Cassiopeia constellation

In this image, the characteristic “W” shape of Cassiopeia can be clearly recognized. Cassiopeia lies roughly opposite Ursa Major across the North Star, making these two constellations excellent references for understanding the rotation and structure of the night sky.

Rather than focusing on deep-sky objects, this approach emphasizes orientation, scale, and context — showing how the telescope, forest, and constellations naturally come together under real observing conditions.

Related Celestron NexStar 4SE Astrophotography

• T-Adapter-C90 and Barlow T-Adapter 1 1/4 inches and T-ring – Connecting a Canon EOS Camera to the Celestron NexStar 4SE
• Celestron NexStar 4SE and the Moon – Lunar observation and imaging with the NexStar 4SE
• Celestron NexStar 4SE and Jupiter – Observing Jupiter and its moons with a compact GoTo telescope
• Celestron NexStar 4SE and Saturn – Saturn’s rings captured with the NexStar 4SE
• Live View Sun Astrophotography – Observing Sun using the Celestron NexStar 4SE

Bahtinov Focus Mask - astrophotography Celestron 4SE

Achieving precise focus is one of the most critical steps in astrophotography, especially when imaging stars and planets. Even small focus errors can significantly reduce image sharpness and detail.

The Bahtinov focus mask is a simple yet extremely effective tool designed to solve this problem. When placed over the front of a telescope, the mask creates a distinctive diffraction pattern on bright stars, allowing focus to be adjusted with high accuracy.

The Bahtinov mask consists of three separate grids arranged at different angles. These grids produce three diffraction spikes for each bright star in the field. As focus is adjusted, the central spike moves relative to the other two. Perfect focus is achieved when the central spike is precisely centered between them.

The images below demonstrate how the Bahtinov mask works in practice using a Celestron NexStar 4SE telescope and a Canon 40D DSLR.

The Bahtinov mask is a device used to accurately focus astronomical telescopes. The Bahtinov mask consists of three separate grids, positioned in such a way that the grids produce three angled diffraction spikes at the focal plane of the instrument for each bright image element (star). Bahtinov Focus Mask, Celestron NexStar 4SE

Bahtinov Focus Mask, Celestron NexStar 4SE, Canon 40D, Spica Out of focus - the central spike is noticeably displaced from the center

Bright star near perfect focus using Bahtinov Mask. Optimum focus is achieved when the middle spike is centered on the star and symmetrically positioned between the other two spikes. Small deviations from optimal focus are easily visible. Bahtinov mask, Celestron NexStar 4SE, Canon 40D

Conclusion:
The Bahtinov focus mask is one of the most useful and affordable accessories for astrophotography. It removes guesswork from focusing and makes it easy to achieve repeatable, precise results — even for beginners.

For compact telescopes like the Celestron NexStar 4SE, the Bahtinov mask is especially valuable. It speeds up setup time, improves consistency, and helps ensure that stars are recorded as sharp points rather than soft or bloated shapes. Once you start using a Bahtinov mask, it quickly becomes an essential part of the imaging workflow.

Related Astrophotography & Gear Posts

• The Moon — Astrophotography with Celestron NexStar 4SE & Canon 40D
  Early lunar imaging results using a DSLR and the NexStar 4SE telescope.
• Connecting a Canon EOS Camera to the Celestron NexStar 4SE
  Assembly guide for T-adapter, barlow, and Canon EOS DSLR planetary imaging.
• Celestron Stereo Binocular Viewer #93691
  Visual observing upgrade using a binoviewer on the NexStar 4SE.
• Zhumell 20×80 SuperGiant Astronomy Binoculars
  Wide-field night sky observing with large astronomy binoculars.
• Explore Scientific 82° Series 8.8mm Eyepiece
  High-contrast wide-field eyepiece performance for planetary and deep-sky observing.

Saturn NexStar 4SE RegiStax 6 NexImage Bahtinov mask and Vibration Suppression Pads

Saturn April 21, 2011. Weather was not good - it was windy and partially cloudy. To suppress vibration I used Celestron Vibration Suppression Pads. To made better focus - used  Bahtinov focus mask.

Saturn, Celestron NexStar 4SE, NexImage, Vibration Suppression Pads, Bahtinov mask, Astrophotography

Video duration 4 min 00 sec (240sec), Frame Rate 10 frames/second, 2400 frames.

Registax v6 - Align 3x3 area, 10  align points, Drizzling Optimization, Wavelet - Gaussian Initial Layer 3 Used Linked Wavelets with  1 and 2 layers, RGB shift

Photoshop - Crop, Luminosity Layer, Saturation,  Contrast, Unsharp Mask, save for Web device jpg

Saturn, Celestron NexStar 4SE, NexImage, Astrophotography

Video duration 4 min 30 sec (270sec), Frame Rate 10 frames/second, 2700 frames.

Registax v6 - Align 3x3 area, 11  align points, Drizzling Optimization, Wavelet - Gaussian Initial Layer 3 Used Linked Wavelets with  1 and 2 layers, RGB shift

Photoshop - Crop, Curves, Contrast, Unsharp Mask, Despeckle, save for Web device jpg 

Bahtinov mask, Celestron 4SE, Brooklyn Astrophotography

Celestron Vibration Suppression Pads

Comparison UV/Infrared Cutoff filter vs. without filter - Celestron 4SE NexStar NexImage

Just bought UV/Infrared Cutoff filter and tried to test it.

Saturn photos with UV/Infrared Cutoff Filter and without filter, Celestron 4SE, NexImage

Upper photo - with UV/Infrared Cutoff Filter
Bottom photo - without filter

RegiStax 6 vs. 5 comparison - Jupiter Celestron 4SE

Here is an example of the difference between Registax v5 and v6 for Jupiter (Jupiter with Ganymede Moon and Ganymede Shadow Transit, September 18, 2010 - Celestron 4SE)

Registax v6 - Wavelet - Gaussian Initial Layer 3 Used Linked Wavelets with denoise 1 and 2 layers, RGB shift

Registax 6, Celestron 4SE, Jupiter

Registax 5, Celestron 4SE, Jupiter

Some clouds are more visible in Registax v6, the shadow and Ganymede moon looks better. So my opinion Registax 6 gives better result with Used Linked Wavelets.

Related Astrophotography Posts

• RegiStax 6 - Astrophotography Saturn - Testing new version v6
• Saturn Celestron NexStar 4SE Telescope RegiStax NexImage
• Jupiter 2010 Opposition - Celestron 4SE NexImage Registax
• The Solar Eclipse of April 8, 2024: An HDR Revelation of the Sun's Corona from Westport, New York
• Blue Moon November 21 2010 Celestron 4se Canon 40D

Saturn opposition, RegiStax 6, Celestron 4SE telescope

Saturn opposition 2011 - Celestron 4SE

Celestron NexStar 4SE Telescope, NexImage, 2x Barlow lens, UV/Infrared Cutoff Filter (1.25")

April 3, 2011 12:26AM (EST)


Video duration 7 min (420sec), Frame Rate 5 frames/second, 2100 frames.

Registax v6 - Align Default, 16 align points, Drizzling Optimization, Wavelet - Gaussian Initial Layer 3 Used Linked Wavelets with de-noise 1 and 2 layers, Zoom, RGB shift

Photoshop CS3 - Crop, Curves... - Auto with Highlight Color 210 210 210 , Save for Web Device jpg

RegiStax 6 - Astrophotography Saturn - Testing new version v6

RegiStax 6 release 2 April 2011
Just downloaded the new version and tested it.
Installation was very simple and no problem for Vista. Interface is simpler and more intuitive.
I had some problem with multi alignment in version 5. In RegiStax 6 it works as magic -- no issue. New function - Linked Wavelet Layers -- is great! Speed fantastic. This is major improvements which allow make more experimental settings and find best parameters for final image.

Thanks for RegiStax all people who created, develop and support it! It's amazing free product!

For Saturn observation I used Celestron 4Se telescope, Barlow 2x, NexImage.
Hope it video helps and gives you ideas what you can do with Registax.

Webcam Astrophotography - Celestron 4SE NexImage - Brooklyn Astronomy

Saturn Celestron NexStar 4SE Telescope RegiStax NexImage

Backyard Astronomy - Astrophotography Celestron
GOTO Alignment - Solar system align - Saturn
NexStar 4se Telescope
NexImage celestron Webcamera CCD Solar System imager VGA 640x480 with Barlow 2-x lens (compliments the Plossl eyepieces - from Celestron Eyepiece and Filter Kit - 1.25")
AMCap software for NexImage
Registax 5.1.9.2

Photos of Saturn - near Saturn opposition 03/20/2011 03/25/2011

Video duration 7 min (420sec), Frame Rate 5 frames/second, 2100 frames and 1 min 40 sec (100sec), Frame Rate 10 frames/second, 1000 frames.
Registax v5 - Align Default, Center Gravity, Gradient2; Drizzling Optimization, Wavelet - Gaussian Initial Layer 2, RGB Align - Estimate, Histogram stretch

A thin black gap in the rings - Cassini division is visible from amateur telescope celestron 4SE in the backyard.

Saturn, Rings, shadow, Cassini division, opposition, 2011, Telescope, Celestron NexStar 4SE, Astronomy, Astrophotography, Astrophoto, Backyard, video, Live video, Space, Science, Solar system, Registax, NexImage, webCamera, stacking, wavelets

NexImage and Celestron 4SE- Brooklyn Astrophotography

Brooklyn Astronomy and Astrophotography - Celestron 4SE and Celestron NexImage

NYC Astrophotography - Celestron 4SE and NexImage

My Hobby is Astrophotography

What happens to astrophotographers. BEWARE!
Priceless....excellent videos...couldn't stop laughing...

T-Adapter-C90 and Barlow T-Adapter 1 1/4 inches and T-ring for Canon EOS and Canon 40D

This post is the first part of a small series showing how to connect a Canon EOS DSLR to the Celestron NexStar 4SE for prime-focus astrophotography. Before assembling anything, here are the individual components you need: the T-Adapter-C90, Barlow T-Adapter 1¼ inches, a Canon EOS T-ring, and the Canon EOS 40D camera body.

Photographing the parts separately helps beginners understand how each piece looks and where it will eventually fit in the optical path. Later posts in this series will show the full assembly and the final connection to the telescope.

T-Adapter-C90, Barlow T-Adapter 1 1/4 inches, T-ring for Canon EOS, Canon 40D - Astrophotograpgy adapter setup for Celestron 4SE 

Components Shown in the Photo

• Canon EOS 40D DSLR camera body
• Celestron T-Adapter-C90 (93635-A)
• Barlow T-Adapter 1¼ inches (Celestron 93640)
• Canon EOS T-ring

This post only shows the individual pieces. In the next steps, you will see how these parts combine into a full optical train for prime-focus imaging or higher-magnification setups using the 1¼-inch Barlow T-Adapter. By understanding the components first, it becomes much easier to follow the later assembly photos and the final telescope-to-camera configuration.

Assembly Series: Connecting a Canon EOS Camera to the Celestron NexStar 4SE

• Part 1 – Components: T-Adapter-C90, Barlow T-Adapter 1¼", T-ring, Canon 40D (this page)
• Part 2 – NexStar 4SE with T-Adapter-C90 and Canon EOS 40D
• Part 3 – Assembled configuration with Barlow T-Adapter and Canon EOS 40D
• Part 4 – 4SE telescope with Barlow T-Adapter 1¼", Erect Image Diagonal, and Canon EOS 40D

4se Celestron with Barlow t-Adapter and Canon EOS 40D

This post shows the second assembled configuration for attaching a Canon EOS DSLR to the Celestron NexStar 4SE. In this setup, the camera is mounted using the 1¼-inch Barlow T-Adapter (93640), providing additional magnification while still operating in true prime-focus mode.

This configuration follows the first assembled setup using the T-Adapter-C90 on the rear port. While both deliver native prime focus, the camera is attached to a different optical output port of the telescope.

Second assembled configuration: 4SE with Barlow T-Adapter 1¼", Canon EOS T-ring, and Canon EOS 40D on the top optical port

How This Assembly Differs from the First Assembled Configuration

In the first assembled setup (Part 2), the camera attaches to the rear threaded photographic adapter. In this second configuration, the camera attaches to the top diagonal barrel, the same position normally used by the finderscope bracket.

• Rear port (Part 2): Camera inline with optical tube.
• Top port (this post): Camera faces upward for easier LCD viewing and better weight balance.

Both positions are true prime focus, only using different light output paths.

Understanding the Two Camera Attachment Points on the Celestron 4SE

The Celestron NexStar 4SE includes a built-in Flip Mirror Control that allows light to exit through either:

• Rear threaded photographic port (used in Part 2)
• Top diagonal port (used in this Part 3 configuration)

Switching the flip mirror determines which port receives the light. This second assembled configuration simply uses the top port + 1¼-inch Barlow T-Adapter for increased magnification and easier access to the camera screen.

Equipment Used

• Celestron NexStar 4SE Maksutov-Cassegrain
• Barlow T-Adapter 1¼" (93640)
• Canon EOS T-ring
• Canon EOS 40D DSLR

Assembly Series: Connecting a Canon EOS Camera to the Celestron NexStar 4SE

• Part 1 – Components Only (all adapters and camera shown separately)
• Part 2 – First Assembled Configuration: T-Adapter-C90 on Rear Port (Prime Focus)
• Part 3 – Second Assembled Configuration: Barlow T-Adapter on Top Port (Prime Focus)
• Part 4 – Third Assembled Configuration: Barlow T-Adapter + Erect Image Diagonal

4se Telescope with Barlow t-Adapter 1 1/4 inches (93640), Erect Image Diagonal (94116) and Canon EOS 40D

This post shows the third assembled configuration for attaching a Canon EOS DSLR to the Celestron NexStar 4SE. In this setup, the camera connects to the rear port of the telescope, but instead of attaching the DSLR directly, this configuration uses an Erect Image Diagonal (94116) between the telescope and the 1¼-inch Barlow T-Adapter.

This places the DSLR in a horizontal orientation, which becomes especially convenient when the telescope is pointed around 45° above the horizon. Even as the optical tube tilts upward, the camera remains easy to reach, focus, and frame. Although the diagonal changes the direction of the camera, the configuration still operates in true prime-focus mode.

Celestron NexStar 4SE with Erect Image Diagonal (94116), Barlow T-Adapter 1¼", and Canon EOS 40D.

How This Configuration Works

The Erect Image Diagonal attaches to the rear threaded port, and the 1¼-inch Barlow T-Adapter is inserted into the diagonal’s eyepiece holder. The Canon EOS T-ring and 40D DSLR attach to the Barlow adapter.

This provides a comfortable horizontal camera position, ideal when the telescope is pointed toward objects at mid-altitude angles (~45° above the horizon). Because the telescope’s native focal path is preserved, this remains true prime-focus astrophotography.

When This Configuration Is Most Useful

This setup is especially effective when photographing targets located around 45° above the horizon. At these angles, the telescope tube is tilted upward while the DSLR remains horizontal, making focusing and framing much easier.

All three assembled configurations in this series have their own advantages and limitations. Depending on the altitude angle of your target — low, mid-altitude, or near zenith — you can select the configuration that offers the most comfortable and stable camera position.

Comparison With Earlier Configurations

• Part 2 – First Assembled Configuration: Straight-through rear port using T-Adapter-C90
• Part 3 – Second Assembled Configuration: Top port via flip mirror with 1¼" Barlow T-Adapter
• This Part 4 – Third Assembled Configuration: Rear port + Erect Image Diagonal + Barlow, DSLR horizontal — ideal for ~45° elevation

Equipment Used

• Celestron NexStar 4SE Maksutov-Cassegrain telescope
• Erect Image Diagonal (94116)
• Barlow T-Adapter 1¼" (93640)
• Canon EOS T-ring
• Canon EOS 40D DSLR

Assembly Series: Connecting a Canon EOS Camera to the Celestron NexStar 4SE

• Part 1 – Components Only
• Part 2 – First Assembled Configuration (Rear Port, T-Adapter-C90)
• Part 3 – Second Assembled Configuration (Top Port, Barlow T-Adapter)
• Part 4 – Third Assembled Configuration (Rear Port, Erect Image Diagonal + Barlow)

Comparison of the Three Assembled DSLR Configurations on the Celestron NexStar 4SE

Configuration	Camera Port Used	Camera Orientation	Best For (Altitude Angle)	Advantages
Part 2 – Straight Rear Port T-Adapter-C90 + Canon EOS	Rear Threaded Photographic Adapter	Inline with telescope tube	Low altitude (near horizon) Best mechanical stability.	• Shortest optical path • Strong support • Best for Moon, planets, low-angle objects
Part 3 – Top Port via Flip Mirror Barlow T-Adapter 1¼" + Canon EOS	Top Diagonal Barrel (Flip Mirror Output)	Camera facing upward	High altitude (70–90°) Ideal near zenith.	• Very easy LCD viewing • Weight close to mount arm • Excellent for objects high in the sky
Part 4 – Rear Port + Erect Image Diagonal Diagonal → Barlow → Canon EOS	Rear Threaded Port → Diagonal	DSLR horizontal via diagonal	Mid-altitude (~45°) Most comfortable orientation.	• Camera stays horizontal • Very ergonomic focusing • Great for clusters and mid-altitude targets

Each configuration has its own strengths, limitations, and ideal angle ranges. By choosing the correct setup based on the altitude of your astrophotography target, you can achieve the most comfortable camera position and the best mechanical stability with the Celestron NexStar 4SE.

NexStar 4se telescope with T-Adapter-C90 (93635-A) and Canon EOS 40D

How to attach a Canon DSLR to the Celestron NexStar 4SE using the T-Adapter-C90 (93635-A) and a Canon EOS T-Ring — a simple and reliable setup for beginner astrophotography.

The Celestron NexStar 4SE is one of the most popular beginner telescopes for planetary, lunar, solar, and bright nebula photography, making it an excellent first step into real astrophotography. This post shows the exact setup I used to attach my Canon EOS 40D DSLR to the NexStar 4SE using the T-Adapter-C90 (93635-A) and a Canon EOS T-ring. If you’re just beginning telescope astrophotography, this is the first and most important connection you need to learn.

How the DSLR attaches to the NexStar 4SE

The process is simple: the telescope's visual back accepts the T-Adapter-C90, and the Canon EOS T-ring attaches to the adapter. Once the T-ring is locked onto your DSLR, the entire camera becomes the “eyepiece,” letting you capture the Moon, planets, and bright star fields directly through the optical system.

Canon EOS 40D attached to Celestron NexStar 4SE using the T-Adapter-C90 (93635-A) and Canon EOS T-ring

This is the complete physical connection: Telescope → T-Adapter → Canon T-Ring → DSLR. No eyepiece is used during prime-focus astrophotography.

Equipment used

• Celestron NexStar 4SE Maksutov-Cassegrain telescope
• T-Adapter-C90 (Celestron 93635-A)
• T-ring for Canon EOS
• Canon EOS 40D DSLR camera

Why This Setup Works Well

This configuration enables prime focus astrophotography, where the telescope’s optics act as the camera’s lens. By attaching the Canon EOS 40D directly to the Celestron NexStar 4SE using the T-Adapter and T-Ring, you get a stable, optically efficient setup ideal for bright astronomical targets.

This setup is perfect for photographing objects such as:

• The Moon (excellent detail and sharp contrast)
• Jupiter and Saturn (rings, cloud bands, moons)
• Venus and Mars
• The Sun — ONLY with a proper solar filter
• Bright star fields and clusters
• Bright nebulae (such as the Orion Nebula)

More advanced astrophotographers can later use the NexStar 4SE for certain deep-sky projects with skill and practice, so this telescope can grow with you as you learn. But for beginners, its strongest and most exciting results come from planetary and lunar photography, where the 4SE delivers sharp, detailed images right from the start.

Assembly Series: Connecting a Canon EOS Camera to the Celestron NexStar 4SE

• Part 1 – Components Only
• Part 2 – First Assembled Configuration (Rear Port, T-Adapter-C90)
• Part 3 – Second Assembled Configuration (Top Port, Barlow T-Adapter)
• Part 4 – Third Assembled Configuration (Rear Port, Erect Image Diagonal + Barlow)

More Celestron 4SE Astrophotography

• Blue Moon – Celestron 4SE + Canon 40D
• Mars – Backyard Astrophotography with the Celestron 4SE
• Total Lunar Eclipse – December 21, 2010 (Celestron 4SE)
• Jupiter, Moons & Great Red Spot – Celestron 4SE
• Celestron 4SE Astrophotography Saturn - RegiStax 6 Testing new version v6

Time-lapse Sunset in Manuel Antonio, Costa Rica

This post features two time-lapse videos captured in Manuel Antonio, Costa Rica during a January 2011 trip, filmed from the iconic Costa Verde Hotel.

The first sequence shows a tropical Pacific sunset transitioning through deep blues and golds. The second time-lapse captures the night sky as clouds drift past the stars, revealing the Orion constellation rising above the horizon.

These time-lapses were created long before modern mirrorless cameras and intervalometers became common, using a Canon DSLR and a dedicated digital timer remote. They represent some of my earliest experiments with motion, time, and the night sky.

Camera: Canon EOS 40D
Accessories: Digital Timer Remote for Canon EOS
Location: Manuel Antonio, Costa Rica (Costa Verde Hotel)
Date: January 2011

Blue Sunset Costa Rica

Sunset Costa Rica

Cloudy Sunset Costa Rica

Gold Sunset - Costa Rica

Related Astrophotography & Time-Lapse Posts

• Canon 60Da Star Trail Astrophotography — Night Sky Rotation
• Canon 60Da Milky Way Astrophotography
• Milky Way over Galápagos Astrophotography

Total Lunar Eclipse December 21, 2010 Winter Solstice

Total Lunar Eclipse December 21, 2010
New York, NY Celestron 4SE telescope. All exposures were taken with Canon 40D. Backyard astronomy and digital astrophotography. Weather in New Your during the eclipse time was fantastic, but a little bit cold.

Total Lunar Eclipse Celestron NexStar 4SE Canon 40D

The eclipse of December 21 2010 Tuesday morning was the first total lunar eclipse to occur on the day of the Northern Winter Solstice - the shortest day and longest night of the year (Southern Summer Solstice) since 1638 (first time in 372 years), and only the second in the Common Era. That will not happen again until 2094.

The eclipse was the first total lunar eclipse in almost three years, since the February 2008 total lunar eclipse. It is the second of two lunar eclipses in 2010.

NYC Total Lunar Eclipse Celestron 4SE Canon_40D Brooklyn Astronomy

Total Lunar Eclipse Celestron 4SE Canon_40D Brooklyn Astronomy

Total Lunar Eclipse Celestron 4SE Canon_40D Brooklyn Astronomy

Total Lunar Eclipse Celestron 4SE Canon_40D Brooklyn Astronomy

Partial eclipse begins 1:33am EST
Total eclipse begins 2:41am EST
Middle of eclipse 3:17am EST
Total eclipse ends 3:53am EST
Partial eclipse ends 5:01am EST

Blue Moon November 21 2010 Celestron 4se Canon 40D

This Blue Moon from November 21, 2010 was photographed in Brooklyn using a Canon 40D and Celestron NexStar 4SE telescope, showing how different white balance settings reveal natural lunar colors.

Color full moon, blue moon, Canon 40D, Celestron 4SE

A blue moon can refer to the third full moon in a season with four full moons. The earliest recorded English usage of the term "blue moon" was in a 1528. In 2010 Blue Moon was November 21.

Equipment Used

• Canon EOS 40D DSLR
• Celestron NexStar 4SE Telescope

Color-Enhanced Blue Moon

1. Neutralize the colors (the median of the values of R, G and B is the same).
2. Create two duplicated layers.
3. First layer set as luminosity
4. Saturate the second layer.
5. Make invisible main background layer.
6. Play games with best parameters
So those colors are real, and the only difference is that they've been exaggerated a bit :)

Blue Moon - White Balance: Tungsten light

Blue Moon Celestron 4SE Canon 40D Brooklyn Astronomy

White-Black Moon - White Balance: Cloudy, twilight, sunset

Full Moon Celestron 4SE Canon 40D Brooklyn Astronomy

Yellow-Red Moon - White Balance: Shade

Full Moon Celestron 4SE Canon 40D

Related Astrophotography Posts

• NexStar 4se telescope with T-Adapter-C90 (93635-A) and Canon EOS 40D
• RegiStax 6 - Astrophotography Saturn - Testing new version v6
• The Solar Eclipse of April 8, 2024: An HDR Revelation of the Sun's Corona from Westport, New York
• Removing Light pollution Astrophotography Urban Astronomy
• Rainbow of the Milky Way and the Eternal Baobab — Tarangire, Tanzania

This Blue Moon project remains one of my favorite lunar imaging sessions. Using simple backyard equipment, the Celestron 4SE and Canon 40D can reveal a surprising range of natural lunar colors through different white balance settings.

The Moon Astrophotography Celestron NexStar 4 SE Canon 40D

Moon Astrophotography Celestron NexStar 4 SE Canon
Backyard Astronomy - Astrophotography Celestron - My amateur astro-photos
Celestron Nexstar 4SE - 4 inches telescope 101.6mm
Canon EOS 40D SLR Digital Camera
Canon Live View
The Moon Photos
Blue Moon November 21, 2010 (A blue moon can refer to the third full moon in a season with four full moons).
Music Debussy Suite Bergamasque: Claire De Lune ("Moonlight")


Moon astro-photography.

Photoshop:
Shadow / Highlights
Unsharp Mask
Brightness/Contrast

Celestron 4SE Canon 40D Moon Brooklyn Astronomy Backyard Astrophotography 

Hyginus is a small lunar caldera located at the east end of the Sinus Medii. Its rim is split by a long, linear rille that branches to the northwest and to the east-southeast for a total length of 220 kilometers

Hyginus is a small lunar caldera located at the east end of the Sinus Medii. Its rim is split by a long, linear rille that branches to the northwest and to the east-southeast for a total length of 220 kilometers. Celestron 4se, Canon 40D, Brooklyn Moon astrophotography 

Between two seas: Mare Tranquillitatis (Latin for Sea of Tranquility) and Mare Serenitatis (the "Sea of Serenity"). Apollo 15 landing at site Hadley–Apennine region.

Apollo 15 landing site at Hadley–Apennine region, Mare Serenitatis, Mare Tranquillitatis. Canon 40D, Celestron 4SE, Brooklyn Moon astronomy from backyard

Tycho is a relatively young crater (about 108 million years). This age suggests that the impactor may have been a member of the Baptistina family of asteroids. A larger asteroid from the same family may have been the impactor responsible for creating Chicxulub Crater on Earth 65 million years ago, and causing the extinction of the dinosaurs.

Tycho crater, Brooklyn Moon astronomy from backyard Canon 40D and Celestron 4SE

Moon astrophotography Canon 40D and Celestron 4SE, Tycho crater, Brooklyn Moon astronomy from backyard 

Copernicus is a lunar crater named after the astronomer Nicolaus Copernicus. The crater is located in eastern Oceanus Procellarum. It is estimated to be about 800 million years old. The circular rim has a 30 km wide. The crater rays spread as far as 800 kilometers across the surrounding mare.

Copernicus crater, Astronomy from Brooklyn backyard Canon 40D and Celestron 4SE

Celestron 4SE Moon Copernicus crater,  Brooklyn backyard Astronomy 

Related Astrophotography Posts

• Celestron NexStar 4SE Canon 40D Live View Sun astrophotography
• NexStar 4se telescope with T-Adapter-C90 (93635-A) and Canon EOS 40D
• Blue Moon November 21 2010 Celestron 4se Canon 40D
• Saturn Celestron NexStar 4SE Telescope RegiStax NexImage
• The Solar Eclipse of April 8, 2024: An HDR Revelation of the Sun's Corona from Westport, New York

Backyard Astronomy - Astrophotography Celestron NexStar 4se

Backyard Astronomy - Astrophotography Celestron
NexStar 4se telescope
Canon EOS 40D and T-Adapter-C90 and Barlow T-Adapter 1 1/4 inches and T-ring for Canon EOS
Celestron 4se telescope with T-Adapter-C90 (93635-A) and Canon EOS 40D
Celestron 4se telescope with Barlow t-Adapter 1 1/4 inches (93640) and Canon EOS 40D
Celestron 4se with Barlow t-Adapter 1 1/4 inches (93640), Erect Image Diagonal (94116) and Canon EOS 40D
Photos of the Moon and the Sun
Celestron NexStar 4se telescope NexImage CCD
Jupiter photos
Piggy-Back Camera Mount for Celestron NexStar 4 telescope (Item# BRKTPIG4)
The Green Comet 103P/Hartley 2 (2010)

 

Moon Celestron 4SE Canon 40D Astronomy Brooklyn Astrophotography

Comet 103P/Hartley 2 from New York City

From the public, his discovery brought cheers. 

From his wife, it drew nothing but torrents of tears. 

"For you see," said Ms. Halley, 

"He used to come daily; 

Now he comes once every 70 years!" 

--Astronomy Jokes

Comet Hartley 2, Celestron 4SE Canon 40D Brooklyn

Comet Hartley 2

The Green Comet 103P/Hartley 2 (2010)
Canon 40D piggybacked Celestron NexStar 4SE,
Brooklyn, NY, October 12, 2010

27 x 60 seconds
Shutter speed of one photo 60 second
ISO Speed 1250
White balance: Daylight
Lens EF28-135mm f/3.5-5.6 IS USM
Focal Length 28.0 mm
Long exposure noise reduction : Disable
High ISO speed noise reduction : Enable


Light pollution was removed in PhotoShop using Filter Noise median and Filter - Blur - Gaussian Blur
Stacked photo using DeepSky Stacker
Finally was edited in PhotoShop

Brooklyn Astrophotography, Celestron 4SE PiggyBack, NYC Astronomy

PiggyBack Camera Mount for Celestron NexStar 4SE (Item# BRKTPIG4), Comet Photo Setup, Brooklyn NYC Astrophotography

NYC Astrophotography, Celestron 4SE

Celestron 4SE and Canon 40D - NYC Astrophotography