GSC 00091-0830

Position from SIMBAD

RA, Dec (J2000)       04 41 57.711 +05 36 34.17 

Patrick Wils, 2003 Jan 3

NSV 1697 = GSC 91-830 = 1RXS J044157.8+053641 (object 13471).  TASS
data confirm that this is a long period variable (NSV gives type LB),
but a lot more nights are needed to see if it is a semiregular or
irregular variable.  Tycho gives B-V=1.11.  The identification of a red
variable with an X-Ray source may be unusual.

Patrick Wils, 2003 Jan 6


hn Greaves notified me that NSV 1697 = BD +05 706 = GSC 91-830 = 1RXS
J044157.8+053641 (the third star I mentioned in my "Top-20" post) is a
"cool Algol", with a period of 18.9 days.  Simbad mentions a number of
papers about this star, but the identification with NSV 1697 has not
been given.

The three nights of TASS data are not sufficient to verify the period,
but apparantly some of the variation is due to spots, which makes the
light curve change from season to season.