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[vsnet-be 103] Re: [vsnet-campaign-be 212] (fwd) beta CMi fading?
- Date: Tue, 18 Feb 2003 01:04:59 -0300
- To: <tkato@kusastro.kyoto-u.ac.jp>,<vsnet-be@ooruri.kusastro.kyoto-u.ac.jp>,<vsnet-campaign-be@ooruri.kusastro.kyoto-u.ac.jp>,<vsnet-obs@ooruri.kusastro.kyoto-u.ac.jp>
- From: "Sebastian Otero" <varsao@fullzero.com.ar>
- Subject: [vsnet-be 103] Re: [vsnet-campaign-be 212] (fwd) beta CMi fading?
- Cc: "Astrid Behrens" <astridbeh@arnet.com.ar>,"BED" <enzodb@fullzero.com.ar>, "Cecilia" <cecimacros@yahoo.com.ar>,"Conrado Federico Kurtz" <surastronomico@hotmail.com>,"Federico Claus" <nclaus@infovia.com.ar>,"Flia Maudet" <fliamaudet@infovia.com.ar>,"Gabriel Giust" <gag@sinectis.com.ar>,"Lelia" <leliafo@yahoo.com.ar>,"paula Pietranera" <ppietranera@hotmail.com>,"Sebastian Otero" <varsao@fullzero.com.ar>
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- References: <12e.23313fa8.2b82f1b5@aol.com>
- Sender: owner-vsnet-be@ooruri.kusastro.kyoto-u.ac.jp
>>>>On 02/18/2003 2:00 UT I measured visually beta CMi at 3.2. I used the
comparison stars: Xi Gem 3.3, Kappa Ori 2.1, Lamda Gem 3.6, mu Lep 3.3 and
eps Gem 3.0. The magnitudes are from AAVSO charts. Visually I was not able
to separate eps and gamma CMi from beta CMi. My estimate for the combined
triple was between 2.7 and 2.8. I then subtracted out eps CMi (V=4.998) and
gamma CMi (V=4.34) which left beta CMi between 3.15 and 3.3. The equation I
used was from the Jean Meeus book "Astronomical Algorithms".
Regards,
Doug West
http://hometown.aol.com/dwest61506/index.html
There must be an error here.
The stars metnioned are too far apart to be seen as a single star.
A practical limit for the brightness to combine -according to my
experience- is around 140" or less than 2'.
These stars are 40' apart!!!
Beta CMi can be easily seen alone.
Regards,
Sebastian.
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