[vsnet-chat 2859] First achievement of MISAO collaborated discovery

[Seiichi Yoshida <comet@aerith.net>]

MISAO Project Announce Mail (April 28, 2000)

Hello. I am Seiichi Yoshida working on the MISAO project.

The MISAO Project aims to make the most of images all over the world
for new objects discovery, observations of known objects, and so on.
Based on this idea, we are promoting an activity to gather amateurs'
CCD images and examine them by the PIXY system for new objects
discovery. In 2000 April, we discovered four new variable stars by
comparing images taken by two amateurs. They are the first achievement 
as the "collaborated discovery" in the MISAO Project.

Totally 19238 images have been offered to the MISAO Project from 7
contributors as follows.

	Contributor		Number of images
	----------------------------------------
	Akimasa Nakamura	425
	Hideo Fukushima		9
	KenIchi Kadota		9034
	Nobuo Ohkura		1397
	Seiichiro Kiyota	10
	Toshikazu Muramatsu	46
	Yasukazu Ikari		8317

	(alphabetical order)	

* In addition, one image of MisV0001, the first new variable star of
  the MISAO Project, was offered by Arne A. Henden.

By examining images offered by Nobuo Ohkura in 2000 March by the PIXY
system, four new variable stars were discovered.

Based on the e-mail conversation between Ohkura and Kadota, Ohkura
took images of the same area again where Kadota has taken in the past.
Therefore a set of images on two nights of the same area was
assembled, then the new objects search could be operated immediately. 
As a result, four new variable stars were discovered in fact.

The 882 new variable stars discovered in last one year between 1999
April and 2000 April were all discovered by comparing Kadota's images
one another. This is the first case that new objects were discovered
by comparing images taken by two persons.

These new variable stars were numbered as MisV0883 - MisV0886.

	Variable     R.A. (2000.0) Decl.        Range
	--------------------------------------------------
	MisV0883  01h35m09s.69 +60o17'10".3  10.6-11.5 mag
	MisV0884  02h00m45s.52 +58o59'11".3   9.2-11.4 mag
	MisV0885  02h58m00s.30 +54o46'35".2  10.8-11.8 mag
	MisV0886  03h04m37s.71 +56o49'14".8  12.1-15.1 mag

Features such as variable type, period, etc., are uncertain. However,
considering the identification with IRAS objects and the color
recorded in the USNO-A2.0 catalog, they are all supposed to be red
variable stars.

These four new variable stars were found by Seiichi Yoshida, a
MISAO Project staff, using the PIXY system. The key images for the
discovery were taken by Ohkura. And they were compared with images
taken by Kadota. Therefore, these three persons, Yoshida, Ohkura and
Kadota, are recognized as discoverers of these four new variable stars
in the MISAO Project and announced in the MISAO Project home page.

As you see, valuable results like new objects discovery can be
achieved by sharing amateur images and comparing one another. The
MISAO Project will keep promoting the activity for amateurs'
collaborated discovery. If you are interested in the work, or you
would like to discover new objects by yourself, please make a contact
to Seiichi Yoshida (comet@aerith.net), or KenIchi Kadota 
(kenic-k@astroarts.co.jp).

P.S.
The past MISAO project announce mails are available at:
  http://vsnet.aerith.net/misao/

--
Seiichi Yoshida
comet@aerith.net
http://vsnet.aerith.net/

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