Stephan's Quintet
About this image
NGC 7331 (lower left) is a magnificent spiral galaxy approximately 40 million light-years away, containing billions of stars and potentially billions of planets.
SN 2026aaiv is a recently discovered Type Ia supernova visible within NGC 7331. The star exploded around 40 million years ago, but its light is only reaching us now.
Stephan’s Quintet (upper right) is a remarkable collection of five galaxies, four of which are gravitationally interacting approximately 290 million light-years away.
Across these galaxies, there could be hundreds of billions, perhaps trillions, of planets.
Annotated image
Image details
| Object type | active galaxy |
|---|---|
| Catalogue | NGC 7317, PGC 69256, NGC 7317 – PGC 69256 – ARP 319 – VV 288 – HCG 92E |
| Constellation | Pegasus (Peg) |
| Observed | 2026 Sep 17 – 23:00 UTC |
| Location | Portsmouth, UK |
| Moon | First Quarter – 37% illuminated – age 6.1 days |
| WordPress categories | Galaxies, Supernova |
Equipment
| Telescope | Skywatcher 127 Mak |
|---|---|
| Camera | ZWO ASI2600MC Pro |
| Mount | Juwei 17 |
| Filter | None |
| Focal length | 1500mm |
| F-ratio | f/11 |
| Pixel scale | 0.52 arcsec/pixel |
Acquisition
| Exposure | 111 x 60s |
|---|---|
| Gain | 100 |
| Guiding RMS | Not recorded |
Posted from CityAstroLog.