The Solar Eclipse of April 8, 2024: An HDR Revelation of the Sun's Corona from Westport, New York

The creation of High Dynamic Range (HDR) images of the solar corona is a fascinating challenge, driven by the need to capture the vast dynamic range of brightness that defines these celestial phenomena. This endeavor marries the artistic with the scientific, uncovering details and structures of the corona that a single exposure could never reveal.

 

The Solar Eclipse of April 8, 2024: An HDR Revelation of the Sun's Corona from Westport, New York

This particular HDR image of the solar corona was meticulously crafted from a series of exposures captured during the total solar eclipse on April 8, 2024. My setup for totality included a Canon Ra camera, a Canon EF200mm f/2.8L II USM Lens paired with a Canon 2x III Extender for an effective focal length of 400mm, set at F/8, ISO 200. The camera was mounted on an iOptron SkyTracker, and I utilized a laptop with the SET'n'C (Solar Eclipse Timer and Controller) for precise camera control. The range of exposure times spanned from 1/1000 to 4 seconds, encompassing 1/1000, 1/500, 1/250, 1/125, 1/60, 1/30, 1/15, 1/8, 1/4, 1/2, 1, 2, and 4 seconds.

During the eclipse, I successfully captured four complete series of photos at these shutter speeds, all in CR3 format. I then processed these files in a Raw editor, adjusting texture, clarity, and denoise settings before saving them as 16-bit TIFF files.

In Photoshop, I centered the photo by loading the images into layers (File > Scripts > Load Files into Stack...) and utilized the “difference” blending mode for layers, manually centering each image using the arrow keys. An average shift calculation from image to image helped address the challenge of centering overexposed images, which could not be simply aligned based on the moon alone.

To create a mean image, I converted the selected layers into a Smart Object and applied the Mean stack mode (Layer > Smart Objects > Stack Mode > Mean), then flattened the image and saved it as mean.tif. For the moon to be at the center of the image, I cropped it accordingly.

I applied a Radial Blur in Photoshop (Filter > Blur > Radial Blur) with the settings: Spin as the Blur Method, Best for Quality, and an Amount of 10, ensuring the moon was centered in the image. This blurred image was saved as blur.tif.

To subtract the blurred image from the original, I used the Apply Image command (Image > Apply Image), setting the source to blur.tif, with the blending mode set to Subtract and an offset of 128. I then compressed the dynamic range using the Levels tool (Image > Adjustments > Levels) and saved the file as subtract.tif.

Clarity Unveiled: High Pass Filtering by Subtracting Radial Blur from the Original

To multiply the mean image with the subtracted image, I once again used the Apply Image command, setting the blending mode to Multiply. The final image was saved as done.tif.

Final touches were made using Topaz Denoise, the Raw Filter editor, and other Photoshop tools to enhance the image.

Totality HRD Image v.2

The final HDR composition is not merely a visual feast but a technical triumph that reveals the complexity and elegance of the sun's atmosphere. These images are invaluable, providing insights into solar physics and the forces that shape the corona. They also offer a breathtaking visual experience that conveys the awe-inspiring beauty of solar eclipses to a global audience. Through this HDR image, the profound beauty of a transient celestial moment is captured, enriching our appreciation and understanding of the cosmos's wonders and presenting the solar corona in a captivating new light.

The Solar Eclipse April 8, 2024 during totality, seen from Westport, New York

Solar corona images of Total Solar Eclipse April 8, 2024 over Westport, New York

This composite image captures the ethereal beauty of the total solar eclipse on April 8, 2024, through a series of meticulously planned exposures. The photos were taken using a Canon Ra camera, renowned for its astro-imaging capabilities, paired with an EF200mm f/2.8L II USM lens and a 2x III extender, enhancing the camera’s ability to capture the fine details of the solar corona. To accommodate the wide dynamic range of the corona's light, nine different shutter speeds were utilized: 1/1000, 1/500, 1/250, 1/125, 1/60, 1/30, 1/15, 1/8, and 1/4 seconds, all at ISO 200.

Mounted on an iOptron SkyTracker, the setup ensured that each exposure was free from the blur that could be caused by the Earth’s rotation, providing a clear and steady view of the eclipse as it progressed. The use of a SET'n'C (Solar Eclipse Timer and Controller) allowed for precise control over the timing and execution of each exposure, crucial for capturing the fleeting moments of the eclipse with accuracy.

The final composite showcases the solar corona in unprecedented detail, from the bright light surrounding the sun to the outermost wisps of plasma stretching into space. The range of exposures reveals the corona’s complexity and the subtle nuances of its structure, creating a stunning visual representation of this awe-inspiring celestial event. This image stands as a vivid reminder of the eclipse’s grandeur, preserving the moment with clarity and detail that convey the majesty of the cosmos.

Baily's Beads - Total Solar Eclipse April 8, 2024

 

Baily's Beads occur just before and just after totality of a solar eclipse. As the moon moves to cover the sun completely, the rugged lunar topography allows beads of sunlight to shine through in some places and not in others. These beads of light appear to flicker around the moon's edges and are named after Francis Baily, who provided an explanation of the phenomenon in 1836.

This is beginning of Total Solar Eclipse visible from Westport, New York April 8, 2024.

Baily's beards image sequence

Image sequence of Baily's beads (diamond ring) at the second contact was captured with Canon Ra with an EF200mm f/2.8L II USM lens and a 2x III extender.  Camera was mounted on an iOptron SkyTracker and orchestrated by SET'n'C (Solar Eclipse Timer and Controller). The six exposures were all short at 1/1000, ISO 200 with camera drive set on continuous at 1 frame per second. 

The beauty of Baily's Beads lies in their rarity. Solar eclipses themselves are rare events at any given location, and the Baily's Beads effect is visible for only a few seconds during the partial phases of an eclipse.

The Baily's Beads effect is a powerful reminder of the celestial mechanics at play. It highlights the perfect alignment of the Earth, Moon, and Sun, and showcases the irregular, rugged terrain of the Moon—factors that are both scientifically fascinating and visually captivating. The sequence of images not only serves as a document of a specific astronomical event but also as an artistic representation of the dynamic, ever-changing nature of our universe.

In essence, a sequence image of Baily's Beads captivates by blending the precision of astronomy with the wonder of natural beauty. It freezes a moment of cosmic ballet, offering a glimpse into the sublime, ephemeral interplay of light and shadow, celestial bodies, and the laws of physics—a dance that, despite its brief appearance, leaves a lasting impression of the awe-inspiring universe we inhabit.

Total Solar Eclipse - April 8, 2024 | Westport, New York

Total Solar Eclipse - April 8, 2024 -Westport, New York

On April 8, 2024, a celestial event of spectacular proportions graced the skies: a total solar eclipse. For those of us in Westport, New York, the day held an air of anticipation, excitement, and a touch of the ethereal, as we prepared to witness day turn into night under the eclipse's path of totality.

Westport, nestled along the scenic shores of Lake Champlain, became a buzzing hub for eclipse chasers, all eager for a front-row seat to nature's grand spectacle.

Westport Golf, known for its lush fairways and stunning views, offered a picturesque setting for eclipse viewing. The expansive greens provided a clear, unobstructed view of the sky, making it an ideal location for observation. As the eclipse approached, the course was transformed into a field of curiosity and excitement, dotted with telescopes, cameras, and spectators donning their eclipse glasses.

The darkness of totality was profound yet fleeting, lasting approximately 2 minutes and 40 seconds. During this brief interlude, the surroundings were bathed in a twilight glow, a surreal moment that felt out of place yet deeply moving. The visibility of stars and planets in the midday sky, particularly Venus’s bright appearance, added a stellar touch to the spectacle.

My set up for Totality: Canon Ra, Canon EF200mm f/2.8L II USM Lens + Canon 2x III Extender = 400mm, F/8, ISO 200. The precision with which these images were captured was further ensured by the use of an iOptron SkyTracker mount, which tracked the sun's movement across the sky, eliminating potential blurring from the Earth's rotation. Moreover, the integration of the SET'n'C (Solar Eclipse Timer and Controller) provided an automated approach to timing and exposure adjustments, critical for dealing with the rapidly changing light conditions during the eclipse.

Beginning of totality,  diamond ring - single photo with fast shutter speed of 1/1000 sec. Amidst the rarefied beauty of celestial events, the Diamond Ring effect stands out as a fleeting, yet unforgettable moment. It heralds the beginning and conclusion of totality during a solar eclipse, a spectacle where the moon and the sun perform a celestial dance across the sky. 

Diamond Ring Contact 2 of Total Solar Eclipse April 8 2024 as seen from Westport, New York

Solar Corona - single photo with fast shutter speed of 1/16 sec. The image stands as a stunning testament to the celestial dance between light and darkness, showcasing the corona's delicate filaments and radiant glow against the backdrop of space.

Solar Corona of Total Solar Eclipse April 8, 2024 - Westport, New York

Solar Flares - single photo with fast shutter speed of 1/1000 sec. The conjunction of the eclipse with these solar eruptions offers a glimpse into the sun's dynamic power, highlighting the beauty and intensity of our star's active nature.

Solar Flares - Total Solar Eclipse April 8, 2024 - Westport New York

End of totality, diamond ring - single photo with fast shutter speed of 1/1000 sec.

Diamond Ring Contact 3 (Post-totality) of Total Solar Eclipse April 8, 2024 as seen from Westport, New York

First photo in the post - average mean of 40 photos with different exposure time from 1/1000 to 1/2 seconds.

As the eclipse passed and daylight returned, the sense of communal experience lingered. Gathered on the golf course, we shared in the wonder and ephemeral beauty of the cosmos, a reminder of the universe’s grandeur and our place within it. The total solar eclipse of April 8, 2024, observed from the Westport Golf in New York, was not just a celestial event; it was a profound communal experience, an opportunity to connect with the cosmos and with each other in a moment of fleeting darkness and enduring wonder.

Annular Solar Eclipse - October 14, 2023 | Odessa, Texas

Annular Solar Eclipse, October 14, 2023 - Odessa, Texas. The University of Texas Permian Basin (UTPB).

Canon Ra, Canon EF200mm f/2.8L II USM Lens + Canon 2x III Extender = 400mm, 1/640 sec, F/14, ISO 3200, Thousand Oaks Threaded Camera Filter 72-T, iOptron SkyTracker, Vello ShutterBoss II Timer Remote Switch 

Annular Solar Eclipse Composite Image

In the grand tapestry of the cosmos, few events capture the human imagination quite like a solar eclipse. While the Earth dances around the Sun, and the Moon orbits our planet, there comes a moment each year when these celestial bodies align in a breathtaking display of natural wonder. This momentous occasion is none other than the annual solar eclipse, a recurring phenomenon that continues to captivate, inspire, and remind us of the profound beauty of our universe.

The annual solar eclipse is not just an astronomical event; it's a celestial spectacle that has held a special place in human history and culture for millennia. As the Moon glides across the face of the Sun, it casts a shadow upon the Earth, temporarily plunging regions into darkness and transforming the day into night. The sun's corona, a delicate, fiery halo, emerges as the star attraction. People gather in awe to witness this cosmic alignment, pondering the mysteries of the heavens and feeling a deep connection to the vastness of the universe.

There are original Images:

1_Annular Solar Eclipse

2_Annular Solar Eclipse

3_Annular Solar Eclipse

4_Annular Solar Eclipse

5_Ring of Fire Eclipse

6_Ring of Fire Eclipse

7_Ring of Fire Eclipse

8_Annular Solar Eclipse

9_Annular Solar Eclipse

10_Annular Solar Eclipse

11_Annular Solar Eclipse

12_Annular Solar Eclipse

Camera set up for Annular Solar Eclipse

There are photos of Crescent-shaped shadows.

Using a kitchen colander during a solar eclipse is a fun and educational way to witness the celestial event. When you hold a colander up to the sun, its numerous small holes act as pinhole cameras, projecting multiple images of the crescent-shaped sun on any surface below, whether it's the ground or a piece of paper. The result is a pattern of miniature eclipses resembling a celestial sieve.

Crescent shadows through the holes in the colander that occur during the eclipse

As the moon begins its journey across the sun's face, the gaps between leaves on trees act as pinhole cameras, casting crescent-shaped images of the partially covered sun on the ground below. These shadow crescents mimic the sun's diminishing shape in real-time, creating a dynamic and awe-inspiring display. In addition to crescent-shaped gaps, the overall dappled pattern of light passing through the leaves forms intricate designs on the ground. The gaps between the leaves project countless images of the partially eclipsed sun, producing an artistic tapestry of sunspots.

Crescent-shaped shadows from trees that occur during the eclipse

iOptron Skytracker and Deep Sky Astrophotography

“By looking far out into space 

we are also looking far back into time, 

back toward the horizon of the universe, 

back toward the epoch of the Big Bang.” 

― Carl Sagan, Cosmos

The deep sky astrophotography can be done without telescope. You just need iOptron Skytracker. There are some photos which were done using iOptron Skytracker. Some of these photos done even in New York city with very high level of light pollution.

iOptron SkyTracker Canon 60Da Deep Sky Astrophotography Orion Nebula M42  New York City

 Canon 60Da, Canon  EF 200mm f/2.8 L II USM Telephoto Lens;  f/2.8; ISO 320; Exposure 15sec x 204 - Total 51 min, Brooklyn NY

iOptron Skytracker Deep Sky Astrophotography without Telescope - Horsehead and Flame Nebulae - New York City

Canon 60Da with Canon EF 200mm f/2.8 L II USM Telephoto Lens and iOptron SkyTracker tripod.Exposure 10sec x 148 - about 25 min total. ISO-800, f/3.2

iOptron Skytracker Deep Sky Astrophotography Pleiades M45 Seven Sisters Melotte 22 with Canon EF 200mm Telephoto Lens

Canon 60Da, iOptron skytracker, EF200mm f/2.8L II USM, f/4.0; ISO 6400, Deep Sky Stacker 30 images x 20 sec, Upstate New York

Deep Sky Astrophotography iOptron Skytracker  Andromeda Galaxy Messier 31 Canon EF 200mm Telescopic Lens

Andromeda Galaxy Messier 31 Deep Sky Astrophotography iOptron Skytracker

Canon 60Da, Canon EF 200mm f/2.8 L II USM lens, iOptron SkyTracker trypod, ISO-6400, f/4, stacked in DeepSkyStacker 215 images x 19 sec, Upstate NY

iOptron Skytracker Deep Sky Astrophotography Northern America and Pelican Nebula

Canon 60Da, EF200mm f/2.8L II USM, f/4.0; ISO 6400, Deep Sky Stacker 29 images x 20 sec, New York upstate

iOptron Skytracker Deep Sky Astrophotography Milky Way and  Orion at Culebra Island

Canon 60Da, Wide Angle EF 16-35mm f/2.8L II USM lens, F/4.0, ISO 3200, 2 min, Culebra Island, Puerto Rico

iOptron SkyTracker Astrophotography Equipment

Equipped with his five senses,
man explores the universe around him
and calls the adventure Science.
--Edwin Hubble

My dreams happen in reality and I got iOptron SkyTracker! Still using piggy pack of the Celestron 4SE I can track sky by camera at home but it too heavy to get the telescope to the long trip. The SkyTracker is pretty compact and not so heavy and can do the same – follow the rotation of the sky. So fly by air plane to places with dark sky I can get more stars, the Milky Way during one shot, increasing camera exposure.   iOptron SkyTracker pretty much can handle Canon 60Da with Wide Angle EF 16-35mm f/2.8L II USM or Telephoto EF 200mm f/2.8 L II USM lens.

Astrophotography Equipment iOptron Sky Tracker Canon 40D Canon EF 16 35mm f2.8L II USM

iOptron SkyTracker Astrophotography Equipment dslr

iOptron SkyTracker Canon 60Da and EF 200mm f2.8 L II USM Telephoto Lens

SkyTracker for Astrophotography

Astrophotography Equipment Sky Tracker iOptron

iOptron Sky Tracker.

Sky Tracker Astrophotography Gear