RBA Premium Astrophotography

January 29th, 2009

Thor's Helmet (NGC 2359) and Planetary Nebula

Posted: January 29th, 2009



Bigger size: 2812x1976

DATE
January 29th, 2009

PHOTO
Exposure time:
L: 9x10'
RGB: 3x10' each
Ha: 10x20'
Total: 6.3 hours
Focal: 995mm, f/6.25

EQUIPMENT
Imaging scope: AP106
Camera: STL11000
Guiding camera: STL Dual Guiding CCD
Mount: Takahashi EM400

SITE & CONDITIONS
New Mexico Skies, New Mexico
Seeing: Ok
Transparency: Excellent

SOFTWARE
Stacking: MaximDL
Processing: PixInsight & Photoshop

COMMENTS
This image was selected as the March 12th, 2009 NASA's Astronomy Picture of the Day.

This image comes from the same data as the previous image except that this one includes over three hours of Ha data.

After being done with the previous image - where I could barely use any Ha -I told Ray I would like to capture one night worth of Ha only. This time, Ray capture the Ha data himself and when he was done he sent me the calibrated image. I added the Ha to the LRGB I already had and reprocessed the image. Later Ray sent me the image as he processed it. I took that image, extracted the lightness data, blended it with my previously processed HaLRGB image, did some additional processing, and the result is what you see.The highlight of the image is the interesting planetary nebula at the bottom-left of the image. It was identified as PN G227.1+00.5.



Thor's Helmet (NGC 2359)

Posted: January 29th, 2009



Bigger size: 2328x1468

DATE
January 29th, 2009

PHOTO
Exposure time:
L: 9x10'
RGB: 3x10' each
Total: 3 hours
Focal: 995mm, f/6.25

EQUIPMENT
Imaging scope: AP160
Camera: STL11000
Guiding camera: STL dual
Mount: Paramount ME

SITE & CONDITIONS
Remote from New Mexico Skies
Seeing: Ok
Transparency: Ok

SOFTWARE
Stacking: MaximDL
Processing: PixInsight & Photoshop

COMMENTS
First image I've ever taken using a remote scope. Thanks Ray for giving me the opportunity to try! I'm hoping to get some more Ha data for this image - I was already very happy for being able to pull out all the nebulosity around the "helmet" with only barely 90 minutes of luminance, so I'm hoping some Ha will help a bit defining those external structures. We'll see.