During my holidays in the Eifel in Germany I have been imaging NGC 4725. NGC 4725 is an intermediate barred spiral galaxy about 40 million light-years away in the constellation Coma Berenices. NGC 4725 is a Seyfert Galaxy, suggesting an active galactic nucleus containing a supermassive black hole.
| Observation data (J2000 epoch) | |
|---|---|
| Constellation | Coma Berenices |
| Right ascension | 12h 50m 26.6s |
| Declination | +25° 30′ 03″ |
| Redshift | 1206 ± 3 km/s |
| Distance | 40 ± 6 Mly (12.3 ± 1.9 Mpc) |
| Type | SAB(r)ab pec |
| Apparent dimensions (V) | 10′.7 × 7′.6 |
| Apparent magnitude (V) | 10.1 |
Image info:
Telescope: TEC140Camera: QSI 583ws
Mount: NEQ6
Guiding: 90mm f5.5 with a DMK21
Exposure:
Luminance (made from RGB and luminance images) 45×10 min (=7.5 h)
R: 6 x 10 min
G: 9 x 10 min
B: 6 x 10 min
Annotated version:
