August 14, 2005
Gamma Arietis
Sketch Refinement
Above is the cleaned up sketch that was submitted to Sky and Telescope for the September 2006 issue.
August 7, 2005 Observation
Observation Notes:
This was a stunning pair. They were so close in magnitude, I couldn't tell the primary. At low power, both looked light blue. But at high power, I'd say the northern star was light blue while the southern star was white. If anything, the northern star may be a touch brighter. I estimated PA at 170° and separation at 8". Listed values from the AL double star list are 0° and 7.8". Not bad at all on the separation estimate! Apparently, they have the southern star pegged as the brighter one, so my PA should actually be 350°. Now, I've grown accustomed to my PA value being off by as much as 10°, but I'm positive these stars didn't line up perfectly north - south. I checked the WDS catalog and a value of 356° was given, so I'm somewhat vindicated there. Not that I need to be vindicated. Uh. Where was I?
| Subject | Double/Multiple Star: Gamma Arietis [ALDS 5] |
| Classification | Triple Star |
| Position | Aries [RA: 01:53:30 / Dec: +19:18]* |
| Separation* | 7.8" |
| Magnitudes* | 4.8, 4.8 |
| Position Angle* | 0° |
| Date/Time | 08/02/05 - 2:05 AM |
| 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 | Partly cloudy, calm, 50°F |
| Seeing | 3/10 |
| Transparency | NELM Mag 5.8 |
Posted by Jeremy at August 14, 2005 1:00 AM .
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