Iota Orionis (Struve 752)

October 18, 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:

Main component is quite bright and blue. The other two members are to the southeast and east. The closest one is much dimmer than the primary, but is easy to split.The third star almost hides in the diffraction spikes.

Subject Iota Orionis (STF 752)
Classification Multiple Star
Position Orion [RA: 05:35.4 / Dec: -05:55]*
Separation* 11.3″
Magnitudes* 2.8, 6.9
Position Angle* 141°
Date/Time 01/17/05 – 11:25 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 (38°F), 1st quarter Moon

Seeing 3-4/10
Transparency Mag 5.2 NELM

*Based on published data.

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