Struve 2194

Sketch of Struve 2194/STF 2194

Sketch of Struve 2194

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Observation Notes:

Struve 2194 consists of a 6.5/9.3 magnitude pair separated by 16 arc seconds at 8°PA. I measured this pair at 18 arc seconds and 7°. There is also another 9th magnitude C star further south that I plotted, but did not measure. The main pair appeared yellow and blue.

SubjectSTF 2194 (ADS 10715)
ClassificationMultiple Star
Position (J2000)*Hercules [RA: 17 41 05.5 / Dec: +24 30 47.7]
Position AngleAB: 8° [My Measurement 2009.3]
AB: 7° [WDS 2007]*
AC: 163° [WDS 2002]*
SeparationAB: 18" [My Measurement 2009.3]
AB: 16.3" [WDS 2007]*
AC: 168.9" [WDS 2003]
Magnitudes*A: 6.5; B: 9.3; C: 9.3
Spectral Types*A: K1III; B: F4V; C: K2
Date/TimeAPR 5, 2009 - 12:45 AM (APR 5, 2008 - 07:45 UT)
Observing Loc.Flagstaff, AZ - Home
InstrumentOrion SkyQuest XT8 Dobsonian (203 mm dia./1200 mm F/L)
Eyepieces/Mag.Pentax XW10 + 2X Barlow (240X)
Meade Astrometric EP + 2X Barlow (200X)
ConditionsClear, light breeze, 1st qtr moon
Seeing5/10 Pickering
TransparencyMag 5.0 NELM
*ReferencesThe Washington Visual Double Star Catalog (Mason+ 2001-2009); Catalogue of Stellar Spectral Classifications (Skiff, 2009); SIMBAD

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This page contains a single entry by Jeremy Perez published on December 2, 2009 9:38 PM.

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