[vsnet-newvar 1689] Unknown Mira Variable at 05 13 59.62 +30 06 57.1 (2000)

[jg@jgws.freeisp.co.uk]

Seiichi Yoshida informed me of four suspected large amplitude red
variables on DSS images, noted during his researches, that were worthy
of
further investigation.

A star at 05 13 59.62 +30 06 57.1 (2000) clearly shows marked variation
on
the two red plate images sourced via the USNOFS image and catalogue
server at
www.nofs.navy.mil/data/FchPix/ , the object also shows marked variation
on the two blue J plates, and it is actually invisible on the blue O
plate. Marked variation is also evident between the two far red IVN
plates.

The contemporaneous E (red) and O (blue) plates from the 1950s DSS1
survey
show the object to be faint on the red plate, and as already noted
invisible on the blue plate. The object is quite bright on far red IVN
plates.

This star is most likely a Mira.

IDENTIFICATIONS :

USNOB1.0 1201-0079034

RA 2000  05h13m59.60s error  247  mas
DEC2000 +30d06'57.2"  error  107  mas

GSC2.2 N30133138015

RA 2000  05h13m59.62s error  0.342048"
DEC2000 +30d06'57.1"  error  0.324221"



John Greaves

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