Theta 2 Orionis (Struve 16)


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:

These 3 stars near the trapezium are widely spaced, and appear as bright or brighter than the trapezium’s C star.

Subject Theta 2 Orionis (STF 16)
Classification Multiple Star
Position Orion [RA: 05:35.4 / Dec: -05:25]*
Separation* 52″
Magnitudes* 5.2, 6.5
Position Angle* 92�
Date/Time 01/17/05 – 11:05 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 (39�F), 1st quarter Moon

Seeing 3/10
Transparency Mag 5.2

*Based on published data.

2 Replies to “Theta 2 Orionis (Struve 16)”

  1. Sir;
    Yesss!!!–a real learning experience. I was looking (through illegal amounts of streetlight-
    there are SIX streetlights in front of my house)
    at this a couple of nights ago. (4″ Unitron/20mm obj.) What a lovely sight; and was thinking to sketch it. Having seen your work gives both knowledge that it CAN be done beautifully and
    apowerful jostle to do so.
    Again, Thanks and my best to you
    Bill

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