CCD Images Library

Common Name: Sharpless 129

Image	SH2-129	Telescope	FSQ 106 Refractor
Constellation	CEPHEUS	Camera	STL-6303 XE
Object Type	Difuse Nebula	Location	JMSM Remote Observatory,NM
Catalog	Sharpless	Exposure	9 hours
NGC	None	Date Processed	9/7/2007
IC	None	Software	Auriga
Sharpless	129	Narrowband	Hydrogen Alpha
Image Number	606

Exposure:

Lum: Hydrogen	16x15 (240 min) (2)
Red: Red	10x3 (30 min) (2)
Green: Green	10x3 (30 min) (2)
Blue: Blue	10x3 (30 min) (2)

This nebula is quite large so I did a 2 image mosaic using the method I came up with in CCD Stack. I combined each of the channels using data reject and sum combine. Then I used CCD Stack and expanded the canvas to register the mosaic images to be taken into Photoshop. I did something new this time and created the RGB in CCD Stack instead of in Photoshop. The 2 images of the mosaic were merged into one for the H-Alpha and the RGB. I think blended the H-Alpha and red and blue channels as I usually do to complete the image. This nebula looks like a larger and wider version of NGC 6888, the small nebula on the lower left is VDB 140 and the dark nebula on the right is Barnard 148.