[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

[vsnet-alert 103] AL Com

This star is a VERY large amplitude TOAD and suspected of being a magnetic system.
The chart in Downes and Shara, has the exact star misid'ed, however, at 
outburst, there will be no doubt of its location as there are no other
bright stars nearby. AL Com had its last outburst in 1975 (last known) and is HIGHLY
likely to have a post outburst brigntening. So do not stop observations after it fades, watch for a rebrightening a day or so later, upto
about 14th or so.

The minimum magnitude ofr AL Com is near 20.5 and in previous outbursts it got
as bright as 12th or so. Superhump observations as well as spectra
(no previous ones exist) would be very useful.

Further information can be obtained from the undersigned
good observing.
Steve
 Steve B. Howell 
 Planetary Science Institute, Astrophysics Group 
 620 N. 6th Ave. 
 Tucson, AZ 85705  USA 
 Phone (520) 622-6300 
 Fax (520) 622-8060 
 e-mail: howell@frankenstein.psi.edu 
 homepage: http://vsnet.psi.edu/

VSNET Home Page

Return to Daisaku Nogami

vsnet-adm@kusastro.kyoto-u.ac.jp