[vsnet-chat 1049] CK Ori is constant :-)

["Fraser Farrell" <fraserf@dove.net.au>]

G'day all,

An interesting bit of trivia...

While preparing a chart recently I discovered that the bright variable
CK Ori (Hip 25785) is "constant"; according to the Hipparcos satellite.
Although CK Ori was observed 140 times, the catalogued range is only
6.35-6.38 Hpmag.  Apparently this is small enough to be classed as
"constant".

Although I've found many examples in the Hipparcos/Tycho Catalogues
where the full range of a variable was not detected; this is the first
time I've found a known variable where no variation was detected.

It's hard to believe CK Ori did absolutely nothing for 3 years, so my
guess is that Hipparcos kept seeing the same part of the lightcurve. Has
anyone found any other cases where Hipparcos was "unlucky" ?


cheers,
Fraser Farrell

http://vsnet.dove.net.au/~fraserf/  email: fraserf@dove.net.au
traditional: PO Box 332, Christies Beach, SA 5165, Australia

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