
One of the advantages of obtaining data from Texas, USA, is that it enables views of objects in the Southern Hemisphere that are impossible from my location in Surrey, UK. Located close to the University of Texas’ renowned McDonald Observatory at latitude 30.6795o, the MOANA project is more than 20o further south and, furthermore, boasts some of the best dark skies in North America, what better place to image the exciting spiral Sculptor Galaxy? Also known as NGC 253 or the Silver Dollar, it is one of the brightest galaxies in the night sky, which results from very high rates of star formation that are fed by the abundance of thick dust lanes.

Footnote & credit: Following a recent knee replacement I’m currently unable to set-up and use my astronomy equipment, fortunately I’m still able to continue processing using the excellent public amateur data from the MOANA project located near Fort Davis, Texas https://erellaz.com/moana/. Many thanks to its creator Elleraz.
| IMAGING DETAILS | |
| Object | Sculptor Galaxy AKA Silver Dollar or NGC 253 |
| Constellation | Scuptor |
| Distance | 11.4 million light-years |
| Size | 27.5 x 6.8 arc minutes |
| Apparent Magnitude | +8.0 |
| Scope | MOANA 10” f/4.5 Newtonian |
| Mount | Astro-Physics 1100GOTO |
| Guiding | Off axis guider + QHY 5L2M |
| Camera | ZWO1600MM Pro |
| FOV 45’ x 35’ Resolution 0.5915”/pix Image size 4,656 x 3,520 pix | |
| Filters | Baader 36mm RGB |
| Capture & Processing | NINA, Deep Sky Stacker & PixInsight v1.9-3 |
| Image Location & Orientation | Centre RA 00:47:37.993 DEC -25:17:36.49 Right = North |
| Exposures | RE x 102, G x 99, B x 98 @ 120 sec Total Integration Time: 9hr 58 min |
| @ 90 Gain | |
| Calibration | 120 sec Dark & RGB Flats |
| Location & Darkness | Near Fort Davis, Texas, USA |
| Date | November & December 2023 |