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 |