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[vsnet-obs 42867] HD 23873
- Date: Sun, 5 Jan 2003 17:41:41 -0300
- To: "Doug West" <DWest61506@aol.com>,<vsnet-campaign@ooruri.kusastro.kyoto-u.ac.jp>,<vsnet-newvar@ooruri.kusastro.kyoto-u.ac.jp>
- From: "Sebastian Otero" <varsao@fullzero.com.ar>
- Subject: [vsnet-obs 42867] HD 23873
- Cc: <hec@pleione.asu.cas.cz>,"Petr Harmanec" <hec@sunstel.asu.cas.cz>,<vsnet-obs@kusastro.kyoto-u.ac.jp>
- Delivered-To: vsnet-obs-archive@ooruri.kusastro.kyoto-u.ac.jp
- Delivered-To: vsnet-obs@ooruri.kusastro.kyoto-u.ac.jp
- Delivered-To: vsnet-obs@kusastro.kyoto-u.ac.jp
- References: <195.134c620a.2b4825e6@aol.com>
- Sender: owner-vsnet-obs@ooruri.kusastro.kyoto-u.ac.jp
>>>Apparently HD 23873 has faded by ~0.16 magnitude. SIMBAD lists HD 23873
at V=6.606 with spectral class B9.5V. The UBV catalog shows a range of 6.57
to 6.62 for this star. More observations will be required to confirm the
fading of HD 23873.
Dear Doug and colleagues,
Last night I observed HD 23873 and it doesn't seem to be fainter....
My visual observation is:
HD023873 20030105.029 66 OSE
The raw result was 6.63. There are good comparison stars. See my chart at:
http://ar.geocities.com/varsao/Carta_BU_Tau.htm
Maybe the proximity of HD 23872 (V= 7.5) has its influence in some of the
results??
On the other hand, from GCPD and Hipparcos photometry, the magnitude of 18
Tau (the "new"
comparison star) is V= 5.66.
Regards,
Sebastian.
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