88 Leonis (Struve 1547)

Sketch of 88 Leonis (Struve 1547 / STF 1547)

Sketch of 88 Leonis / Struve 1547

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Observation Notes:

88 Leonis is a high proper motion pair (378 mas/yr) with a coppery orange primary next to a colorless secondary. Sissy Haas sees it as bright white paired with a tiny speck. Smyth saw topaz yellow and pale lilac.

Subject 88 Leonis (Struve 1547 / STF 1547 / ADS 8196)
Classification Double Star
Position (J2000)* Leo [RA: 11 31 44.9 / Dec: +14 21 52.2]
Position Angle AB: 333° [My Measurement 2009.9]
AB: 331° [WDS 2007]*
Separation AB: 15″ [My Measurement 2009.9]
AB: 15.3″ [WDS 2007]*
Magnitudes* A: 6.3; B: 9.1
Spectral Types* A: G0IV; B: K6V
Date/Time NOV 27, 2009 – 3:50 AM MST (NOV 27, 2009 – 10:50 UT)
Observing Loc. Flagstaff, AZ – Home
Instrument Orion SkyQuest XT8 Dobsonian (203 mm dia./1200 mm F/L)
Eyepieces/Mag. Pentax XW10 + 2X Barlow (240X)
Meade Astrometric EP + 2X Barlow (200X)
Conditions Clear, cold, hazy
Seeing 3-4/10 Pickering
Transparency Mag 5.5 NELM
*References The Washington Visual Double Star Catalog (Mason+ 2001-2009); Catalogue of Stellar Spectral Classifications (Skiff, 2009); SIMBAD; Double Stars for Small Telescopes – Sissy Haas

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