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[vsnet-chat 2765] Re: New variable star near V601 Sco?
- Date: Wed, 29 Mar 2000 07:39:44 -0800 (PST)
- To: Patrick Schmeer <extpasc@rz.uni-sb.de>, vsnet-chat@kusastro.kyoto-u.ac.jp
- From: Lew Cook <lcoo@yahoo.com>
- Subject: [vsnet-chat 2765] Re: New variable star near V601 Sco?
- Sender: owner-vsnet-chat@kusastro.kyoto-u.ac.jp
That sounds like the bug that bit me a year ago when I had a severe
red leak on a green filter. If the camera+telescope is operating
unfiltered, it could easily be just a very red star. But if so, it is
probably variable nonetheless.
See http://vsnet.geocities.com/lcoo/lewsstar.htm for the saga of the
wild goose chase on the very red star I found.
That star is pretty far south for someone at your latitude, and you
are looking through a lot of atmosphere. That would redden it still
more if the images are from Germany.
Regards, Lew
--- Patrick Schmeer <extpasc@rz.uni-sb.de> wrote:
> NEW VARIABLE STAR NEAR V601 SCORPII?
>
> On my V601 Sco images taken with the IRO in 1999 and 2000 I have
> found a mag 10-11 star at
> 17:03:58.6 -36:45:24 (J2000.0),
> which is considerably fainter (mag 12-13) on the DSS-2 red image.
> This star is listed in USNO-A2.0 as follows:
> 17:03:58.647 -36:45:23.21 (J2000.0) 12.7e 15.9e
> It is probably identical with IRAS 17005-3641 (17:03:57.5
> -36:45:21)
>
> Unfortunately I could not detect any variability of this star on my
> few images. Could this be a previously unknown variable, or may the
> discrepancy between its appearance on the DSS-2 and IRO images be
> attributed to an extremely red color?
>
> Best wishes,
> Patrick
>
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