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 | 
 


