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[vsnet-chat 5940] Re: [vsnet-id 741] Re: (fwd) ASAS variables: identifications by Anton Paschke
- Date: Mon, 3 Feb 2003 20:38:22 -0300
- To: <vsnet-chat@kusastro.kyoto-u.ac.jp>
- From: "Sebastian Otero" <varsao@fullzero.com.ar>
- Subject: [vsnet-chat 5940] Re: [vsnet-id 741] Re: (fwd) ASAS variables: identifications by Anton Paschke
- Delivered-To: vsnet-chat-archive@ooruri.kusastro.kyoto-u.ac.jp
- Delivered-To: vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp
- Delivered-To: vsnet-chat@kusastro.kyoto-u.ac.jp
- References: <200302011618.BAA00103@rcsvr.rc.kyushu-u.ac.jp>
- Sender: owner-vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp
> There is no information of the parallax or the spectral luminosity
> class for this object. Only the proper motion is marginally detected;
> about 15 mas/yr. When we assume the transversal velocity of this star
> to be 10 km/s, its distance is about 130pc, which lead M_V ~ 6. So,
> it possibly is a red subgiant (luminosity class IV).
Dear Yamaoka-san and all,
What's the evolutionary status of a subgiant M- type star?
I thought that normal stars hadn't had time enough to evolve to that stage
due to the age of the universe...
Are they maybe pre-sequence stars??
Regards,
Sebastian.
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