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[vsnet-id-2mass 38] New 2MASS selected variable in Auriga
2MASS 0537148+391632 = IRAS PSC 05337+3914 in Auriga is variable.
Descriptive images and dates given under the same subject heading are
at:
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Mail/vsnet-image/maillist.html
where it can be seen to vary markedly in comparison to the adjacent
[bright] star GSC 2910 00060 of GSCmag 10.0. It is far brighter than
this star in J, H and K bands.
2MASS data subsets for the 2nd incremental release can be obtained from
http://irsa.ipac.caltech.edu/applications/CatScan/
which has a powerful SQL engine [choose no co-ordinates, and make a
selection, but be careful, files can be very big. Their is a STOP sign
link for these cases. Just stop and redo with more stringent criteria].
2MASS images of the field can be obtained from
http://irsa.ipac.caltech.edu/applications/2MASS/ReleaseVis/
and archival red and blue survey plates of the region can be obtained
from
http://vsnet.nofs.navy.mil/data/FchPix/cfra.html
[ensure PIXELS dialogue is set to YES], though these are probably
copyright.
Choose a field of view as small as 3' to 5'.
Views of a particular field and survey plate, complete with USNO A2, GSC
1.2, IRAS, NED and other overlays, plus overlaid/symbols info from the
myriad of miscellaneous catalogues in the SIMBAD server can be obtained
via the CDS websites Aladin server linked to at
http://cdsweb.u-strasbg.fr/ .
Amateurs, or groups thereof, who are suitably equipped with internet
access, dark skies and sufficient telescope [only one person in a group
needs the net access] could use such facilities to identify a possible
variable, observer it for a season/year [dependant on object's local
altitude], amass their new observational data into a report in tandem
with their eliterature research, and possibly even present the whole as
an IBVS or professional paper at some future time.
This would be a first to last analysis, and would probably engender more
interest than the run of the mill observations [and make a change from
CVs].
I present this new variable in Auriga to any such interested group: they
are welcome to follow it up in any way they wish.
Cheers
John
vsnet-adm@kusastro.kyoto-u.ac.jp
Return to Daisaku Nogami
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