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[vsnet-j 2595] Re: Possible Nova in Sgr: further archival images
- Date: Thu, 10 Apr 2003 18:46:37 +0900 (JST)
- To: vsnet-alert@kusastro.kyoto-u.ac.jp
- From: Hitoshi YAMAOKA <yamaoka@rc.kyushu-u.ac.jp>
- Subject: [vsnet-j 2595] Re: Possible Nova in Sgr: further archival images
- Cc: vsnet-campaign-nova@ooruri.kusastro.kyoto-u.ac.jp,vsnet-discovery-nova@ooruri.kusastro.kyoto-u.ac.jp,cbat@cfa.harvard.edu, dgreen@cfa.harvard.edu,vsnet-j@kusastro.kyoto-u.ac.jp,vsnet-newvar@ooruri.kusastro.kyoto-u.ac.jp
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Re: Possible Nova in Sgr: further archival images
> The variability of this object is easily detected with the DSS2 R
>images taken on 1991, 1992, and 1996. It is quite dim on DSS1 Bj
>images (1987.705 and 1987.590), which I guess Kushidas referred.
The POSS I digitized image (thanks to USNO Flagstaff) taken on
1958.5257 with 103aO (Bj) shows this object much brighter than in
other Bj images, such as POSS I Bj taken on 1958.2957. Thus this
object has also a large amplitude in photographic band, which is
consistent with the description of V4006 Sgr, and the reports by
Haseda-san and others.
Sincerely Yours,
Hitoshi Yamaoka, Kyushu Univ., Japan
yamaoka@rc.kyushu-u.ac.jp
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