[vsnet-newvar 466] New variable star GSC 5118 332 (HassfortherV42)

[Bela1996@aol.com]

New variable star discovered on Stardial-CCD-images (HassfortherV44):

2000 184632.07 -025723.3 HassfortherV44 7.5-8.3I SR 200d + 1400d

HassfortherV44
(2000) 18h46m32.07  -02 57.3888
= GSC 5118 332
= IRAS 18439-0300

Checking 212 images from 1996 to 2000 showed GSC 5118 332 to be
a red semiregular variable star with a short period from about
200 days. A longer cycle with a period of about 1400 days is
indicated. The amplitude from the shorter period is about 0.4 mag,
the amplitude from the longer cycle is about 0.8 mag (in the
Stardial-System: red-filtered KAF0400).
Differential Photometry was done with MIRA AP 6.03 with respect
to GSC 5118-388.

A check of the available TASS-measurements proofed
the star to be variable.
Judging from the TASS-Photometry the star is extremly red:
V = 13.31 (20 measurements)
I =  7.57 (35 measurements)

Lightcurve: http://members.aol.com/bela1998/hassfortherv44.htm

Stardial: http://vsnet.astro.uiuc.edu/stardial/
TASS: http://vsnet.tass-survey.org/

Bela Hassforther, 21.06.2000

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