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[vsnet-newvar 1701] USNO-A2.0 0825-17508293 is a Mira variable
- Date: Mon, 2 Dec 2002 07:44:28 -0800 (PST)
- To: vsnet-newvar@kusastro.kyoto-u.ac.jp, pmcc@astro.uiuc.edu
- From: Patrick Wils <patrickwils@yahoo.com>
- Subject: [vsnet-newvar 1701] USNO-A2.0 0825-17508293 is a Mira variable
- Delivered-To: vsnet-newvar@kusastro.kyoto-u.ac.jp
- Sender: owner-vsnet-newvar@ooruri.kusastro.kyoto-u.ac.jp
Analysis of Stardial images (http://vsnet.astro.uiuc.edu/stardial/)
between 1999 and 2002 reveal that USNO-A2.0 0825-17508293 (coordinates
20 00 56.845 -06 05 13.41) is a Mira variable with an amplitude of at
least 1.5 mags in red light. There are not enough data at the moment
to fix the period.
The USNO plates give a B-R value of +3.3, and confirm the large
amplitude. On one of the red plates (NOFS archive server
www.nofs.navy.mil/data/fchpix), its R mag is 11.4.
There is no entry for this star in the GSC 1.x.
Other identifications:
GSC2.2 S302331039419
IRAS 19582-0613
Thanks to John Greaves for checking the NOFS data.
Patrick
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