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Re: (IAAC) Obj: Epsilon Ori - Inst: 10" F4.8 Equatorial mount GP/DX
Hi Barry, I checked out Epsilon Orion to see
if it was a tight double, but in fact it is a very wide pair, the last official
observation was made in 1986 at which time the seperation between AB was 175.5"
at PA 59 deg, and mag A 1.7 mag B 10.5, in fields as rich as the Orion
field it can be a challenge identifying the true B component when the seperation
is as wide as this. Info was from Skymap, which uses the WDS
catalogue.
Hope this is of some use to
you!
Regards, Kim Gowney.
----- Original Message -----
Sent: Thursday, January 03, 2002 2:37 PM
Subject: (IAAC) Obj: Epsilon Ori - Inst: 10" F4.8 Equatorial mount
GP/DX
----
Observation Poster: Barry Sharpe <barry.sharpe@btinternet.com>
Observer:
Barry Sharpe
Your skills: Beginner (< one year)
Date/time of
observation: 29th December 2001 22:12UT
Location of site: Welwyn Garden City
(Lat 53:27:00, Elev 02:31:00)
Site classification: Suburban
Sky darkness:
5 <Limiting magnitude>
Seeing: 7 <1-10 Seeing Scale (10
best)>
Moon presence: Great - full or very near object
Instrument: 10"
F4.8 Equatorial mount GP/DX
Magnification: 25mm @ 10mm
Filter(s):
None
Object(s): Epsilon Ori
Category: Other.
Class:
Star
Constellation: Orion
Data: mag 1.70 size
Position: RA
: DEC :
Description:
Failed to split Epsilon Ori, in 25mm or 10mm
eyepiece. It is a blue star, and i
can see a total of 22 stars in my FOV
under 25mm eyepiece. The 22 stars seem
fairly evenly spaced throughout the
eyepiece. I note a nice halo of light that
surrounds Epsilon Ori plus the
star holds magnification particularly well.
But no luck with splitting the
star.
--
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