Observation by Adam Rawlinson: NGC891

Uploaded by

Adam Rawlinson

Observer

Adam Rawlinson

Observed

2025 Nov 02 - 22:15

Uploaded

2025 Nov 03 - 22:25

Objects

NGC1

Equipment

QHY MiniCAM 8 - CMOS
Primaluca 90ED
Skywatcher Az-EQ6

Exposure

48mins total - G,R,I & L

Location

sandhurst

Target name

NGC891 and surrounding galaxies

Title

NGC891

About this image

I keep coming back to NGC891.

This is a magnitude 10.8 object circa 8.2Mpc distant. A spiral galaxy similar to the Milky Way but without a central bar.

Again I have used Astroart9 atlas to label all the faint galaxies in the field. Some (PGC 2196068 for example) are as faint as mag16.2. So my set up isnt doing too badly.

I processed this as an LRGB image but used i', r', g' filters (3x240sec subs each) instead with an 3 unfiltered stacked 240sec subs for the luminance.

Darks applied to each stacked group. I used a linear filter tool to get rid of lunar gradient. Got the hang of using these photometric filters instead of RGB now.

Files associated with this observation

NGC891-LRGB-48min.jpg (707.1 kB)

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