Japanese version Home Page Updated on August 18, 1999
August 16, 1999
Near miss, etc.
MISAO Project Announce Mail (August 16, 1999)
Hello. I am Seiichi Yoshida working on the MISAO project.
I investigated if the two bright new objects discovered in July were within the field of the CCD images of the Ageo Survey Team (KenIchi Kadota, Seiichi Yoshida). Then I found we have taken just besides of them.
* V1493 Aql (Nova Aql 1999)
This is a nova discovered on July 13 as 8.8 mag at R.A. 19h 8m, Decl. +12o32'.
The Ageo Survey Team ran the survey with 0.16-m f/3.3 reflector on July 7 around the field. But because we took images along the R.A. line at 19h, the nova was out of the images. Our field was just one image size right to the nova before brightening.
* 1999 NW2 (M.P.E.C. 1999-N34)
This is one of the near earth asteroids, discovered on July 13 as 15.4 mag. The Ageo Survey Team ran the survey with 0.16-m f/3.3 reflector on July 15 around the field without the discovery information. On that day, this object was closest to the earth, only 0.016AU, and reached to 14.6 mag. It was at R.A. 19h40m, Decl. +08o41'.
However because we took images along the R.A. line at 19h42m, from Decl. +10 to +20 deg, this asteroid was out of the images. If we had started the survey from one image size south, this asteroid must be in the field as a fast moving object.
The latest version of the PIXY system, automatic image examination software, is released. This new version supports the USNO-A2.0 catalog. Although many of the new variable stars discovered in the MISAO Project are not recorded in the catalog, it contains most stars until 20 mag or fainter. Therefore, it is very useful for new objects survey.
In addition, the bug of the PIXY system on the magnitude estimation, mentioned in the announce mail on Aug. 8, is also fixed.
-- Seiichi Yoshida firstname.lastname@example.org http://www.info.waseda.ac.jp/muraoka/members/seiichi/index.html