NGC 6633
NGC 6633 – Open cluster in Ophiuchus
This sketch was a challenge. I’ve tried to interpret the proper relative brightness of the stars but the result lacks the real shine of the main ones.
| Object | NGC 6633 |
|---|---|
| Observed at | Dunaharaszti, HU, 2025-08-19 23:20 |
| NELM | ~ 4.5 |
| Aperture | 127 mm |
| Magnification | 48x |
| FOV | 1.1° |
This night was exceptionally clear, NELM was rather 4.7. I was experimenting with using black and blue pens for annotations and mixed up in the end.
Object data
| Object | NGC 6633 |
|---|---|
| Desc. | Medium disperation, medium sized cluster with medium star density † |
| RA | 18h 27m 15s † |
| Dec | 6° 30’ 30” † |
† fetched from astronomyapi.com
