Lambda Orionis (Struve 738)

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:

While finding in the 32 mm EP, the double didn’t show up. Meissa sits at the north end of a trio of pointer stars. It’s a nice tight double. Both stars appear blue, although the brighter component is more obviously blue.

Subject Lambda Orionis (Meissa / 39 ORI / Struve 738)
Classification Multiple Star
Position Orion [RA: 05:35:30.7 / Dec: +09:56:26]*
Separation* 4.4″
Magnitudes* 3.5 / 5.5
Magnitudes* 43°
Date/Time 01/16/05 – 7:55 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, cool (34°F), 1st quarter Moon

Seeing 5/10
Transparency Mag 4.9 NELM

*Based on published data.