| Bob Hogeveen | ||||
| Star:
33
Orionis
Date & Time: Januari 6, 2000 - 20:00 UTC Seeing: 5-6 <1-10 Seeing Scale (10 best)>. Location of site: Annen, The Netherlands (53 N, 6 E) Site classification: Village-backyard Sky darkness: 4 <Limiting magnitude> Conditions: Hazy and almost full Moon in Tau, limiting mag.: 2.5 Temperature: 5° C Telescope: Celestron 11" SCT Magnification: 100x |
There is some different
data on the magnitudes of this pair :
WDS gives : 5.8 and 6.9 (sep. 1.9") Hipparcos, which I think is the most reliable : 5.46 and 6.51 (sep. 1.89") The color of both stars is blue, Skymap Pro 7 shows that B is a bit more bleu than A Comments:
Orion was still low in the sky and 33 was at the moment of observation less than 30° above the horizon. The whole sky in that area looked very hazy and had a yellow tinge. So did star A, it really looked a bit yellow. Star B was able to maintain
his bleu color, it was very obvious at 280x.
Ambience: This evening I
tested the ability of the cloudgods to react on putting a scope out. I
measured their speed of reaction to be one hour. So there is some hope
for those who can put up their gear and start observing well within one
hour!
Nevertheless, I had a short
opportunity to observe the Moon, Jupiter and Saturn with my CG-11. After
that of course some doubles...
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