N Hydrae

Observation Notes:

I was unable to tell which star was the primary, so the PA appeared to be either 203° or 157°. Separation seemed to be about 10 arc seconds. WDS values from 1783 are 210° and 9.3 arc seconds. That’s a pretty old measurement, and I’m not sure how close it is to a more modern measurement. But it was close to what I saw. Colors appeared as white for the northeast star, and pale yellow for the southwest star.

Subject N Hydrae (H 96)
Classification Double Star
Position (J2000) [RA: 11:32:16 / Dec: -29:15:46]*
Position Angle* 210° (1783)
Separation* 9.3″ (1783)
Magnitudes* 5.7; 5.8
Spectral Types* F8V; F8V
Date/Time JAN 18, 2007 – 05:50 AM MST (JAN 18, 2007 – 12:50 UT)
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, calm, 5° F
Seeing 3/10
Transparency NELM Mag ~5.8
References The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)

*Based on published data.

Leave a Reply

Your email address will not be published.