Wallpaper author:
Jan Scheers
31 Aug 2022
NGC 55
NGC 55, also known as The Whale Galaxy (or Caldwell 72), is a barred irregular spiral galaxy located about five million light years away in the constellation Sculptor.
NGC 55 is nearly edge-on and appears asymmetrical, like a cigar. Its bulge is diffuse, broad, and somewhat elongated. The bright core is crossed with clouds of gas and dust, and it has a lot of pinkish active star forming regions, and young blue star clusters.
Image acquired with CHI-1 (Planewave CDK24). Data from 3 one-click observations.
Total integration time: 240 minutes
LRGB: 6 subs of 600s with each filter.
Dataset from which the image was processed
NGC 55
10 credit
- Type of target............................................................................................................................Galaxy
- Camera............................................................................................................................FLI ProLine PL9000
- Target coordinates............................................................................................................................RA 3.72329 Dec -39.19661
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................11 Sept 2020 - 21 Nov 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Blue | 632 | 3h20m | 19 |
| Luminance | 695 | 3h40m | 19 |
| Red | 616 | 3h15m | 19 |
| Green | 700 | 3h30m | 18 |
| Halpha | 133 | 40m | 18 |