Iota Trianguli (Struve 227)

October 17, 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:

This little booger took me by surprise. At low power, it looked like a single star and I thought maybe I was looking at the wrong object. Bumping the magnification, however, revealed two nice, close compadres. The primary was on the west side and was yellow, while the secondary on the east was either white or pale blue. Based on the sketch, I would estimate the position angle at 80° with a separation of 12"...but with my track record of overestimating separation by a factor of 2 to 3 in my sketches, I'd bet it is more like 4-6". The actual values from the AL double star list are 71° and 3.9" (heheh).

SubjectDouble/Multiple Star: Iota Trianguli (STF 227)
ClassificationDouble Star
PositionTriangulum [RA: 02:12.24 / Dec: +30:18]*
Magnitudes*5.3, 6.9
Position Angle*71°
Date/Time08/02/05 - 2:05 AM
Observing Loc.Flagstaff, AZ - Home
InstrumentOrion SVP 6LT Reflector (150 mm dia./1200 mm F/L)
Eyepieces/Mag.10 mm + 2X Barlow (240X)
ConditionsPartly cloudy, calm, 59°F
TransparencyNELM Mag 5.2

*Based on published data.

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This page contains a single entry by Jeremy Perez published on August 2, 2005 2:05 AM.

Gamma Andromedae (Struve 205) was the previous entry in this blog.

Added new observation forms and M63 is the next entry in this blog.

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