[BAA-ebulletin 00712] Gyulbudaghian's Nebula Brightens
BAA electronic bulletins service
baa-ebulletin at britastro.org
Mon Dec 10 15:05:27 GMT 2012
>From the Deep Sky Section
Gyulbudaghian's Nebula Brightens.
BAA member David Boyd, using a 0.35m SCT with SXVR-H9 CCD camera, reports
that Gyulbudaghian’s Variable Nebula, which is associated with the young
Herbig Ae star PV Cephei, is currently brighter than he has observed it at
any time over the last 3 years.
The Deep Sky Section has a programme to monitor this fan shaped nebula in an
attempt to correlate changes in shape and brightness with its associated
star. If you would like to get involved in this programme, or if you have
been involved in the past and were disappointed at continually observing
what appeared to be blank sky, now is the time to start monitoring again.
PV Cephei is located at RA 20:45:54 & Dec +67:57:39.
If you are interested in imaging the nebula on a regular basis (say monthly,
or weekly if possible as it can change in appearance quite rapidly) please
ensure you use identical equipment and exposure each time so that any
recorded change in appearance is due to a real change in the nebula and not
to changes in exposure details. The monitoring programme is being
coordinated by Grant Privett (g.privett at virgin.net). Please send images in
FITS format to Grant with a JPG copy to myself (sigarro at btinternet.com) for
the Section archive. The nebula is notoriously difficult for visual
observers, but owners of large Dobsonians who relish a challenge may be
interested in trying for it in its current bright state.
Stewart Moore
Deep Sky Section Director
2012 Dec. 10
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