61 Cygni
61 Cyg – Double star in Cygnus
Really nice binary. This was my fourth sketch on that night. I was tired, the surroundings may be rough and incomplete.
| Object | 61 Cygni |
|---|---|
| Observed at | Dunaharaszti, HU, 2025-08-20 01:45 |
| NELM | ~ 4.5 |
| Aperture | 127 mm |
| Magnification | 103x |
| FOV | 0.66° |
This night was exceptionally clear, NELM was rather 4.7. I was experimenting with using black and blue pens for annotations.
Object data
| Objects | 61 Cyg A | 61 Cyg B |
|---|---|---|
| Fetched as | HD 201091 | HD 201092 |
| Desc. | Main sequence star † | Main sequence star † |
| RA | 21h 06m 53s † | 21h 06m 54s † |
| Dec | 38° 44’ 58” † | 38° 44’ 31” † |
| Magnitude | 5.2 | 6.0 |
| Spectral class | K5V † | K7V † |
† fetched from astronomyapi.com
