Sketch Refinement
Above is the cleaned up sketch that was submitted to Sky and Telescope for the September 2006 issue.
December 12, 2005 Observation
Observation Notes:
This was a beautiful yellow/white combo. The yellow star was the primary. PA appeared to be 280° with a separation about 9 diffraction rings apart, center-to-center (about 11.7″). The listed separation is 9.6″, so I was over by 2″.
| Subject | Double/Multiple Star: Gamma Delphini (STF 2727) |
| Classification | Double Star |
| Position | Aries [RA: 20:46:42 / Dec: +16:07]* |
| Separation* | 9.6″ |
| Magnitudes* | 4.5, 5.5 |
| Position Angle* | 268° |
| Date/Time | 09/12/05 – 11:35 PM |
| Observing Loc. | Flagstaff, AZ – Home |
| Instrument | Orion SVP 6LT Reflector (150 mm dia./1200 mm F/L) |
| Eyepieces/Mag. | 10 mm + 2X Barlow (240X) |
| Conditions | Clear, breezy, 55°F |
| Seeing | 5/10 |
| Transparency | NELM Mag 4.8 |
*Based on published data.