January 16, 2005
Sigma Orionis (Struve 762)
October 12, 2006: To help provide a consistent style for my double star sketches, the above sketch is a digital update to the original sketch.
Observation Notes:
A neat multiple star area. There was a triple star at center with a blue component on the west side. The northeast component almost looked orangeish by comparison, but it's really white. Another double is on the west edge of the view.
| Subject | Sigma Orionis (48 Ori / STF 762) |
| Classification | Multiple Star |
| Position | Orion [RA: 05:39 / Dec: -02:36]* |
| Separation* | 12.9" / 43" |
| Magnitudes* | 4.0 / 7.5 / 6.5 |
| Position Angle* | 84° / 61° |
| Date/Time | 01/16/05 - 11:50 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 | Patchy high clouds, cool (34°F), 1st quarter Moon |
| Seeing | 5/10 |
| Transparency | Mag 4.9 NELM |
Posted by Jeremy at January 16, 2005 11:50 PM .
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