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Taken 30-Dec-14
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40 of 76 photos

NGC 3184

This image shows galaxy NGC 3184 in Ursa Major. The bright star Tania Australis (on the left side) caused a major ghost image below and to the right of the galaxy. I don't have the know-how needed to remove that smudge.

Again, like in the previous image, the focus in this image is off. Deconvolving helped a little bit.

Date: December 24, 2014
Time: 1:30 am - 4:00 am
Camera: SBIG STF-8300M
CCD Temperature: -13 C
Optics: Televue 127is (reduced)
Filter: Astronomik L
Light frames: 30x5 min
Dark frames: none (bias frames)
Flat frames: 25
Bias frames: 100
Binning: 1x1
Guiding: Orion SSAG @ Orion finder (~162 mm)
Mount: AP Mach 1
Dithering: Manual
Processing: Stacking in CCDStack, Curves, Levels, and noise removal actions in PSCS6.

Other notes: This was the first night that imaged three target in one night. Overall, I'd call this a session with limited success as I didn't check the focus between targets. I'll pay more attention next time.

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NGC 3184