[vsnet-chat 4030] (fwd) MACHO new SU UMa variable star

[Taichi Kato <tkato>]

(fwd) MACHO new SU UMa variable star

   This information is from AAVSO discussion (see also the MACHO home page
for detailed light curves and finding chart).  Perhaps many of supermaxima
are within reach of conventional telescopes.

From: Doug Welch <welch@physics.mcmaster.ca>

DISCOVERY OF SU UMA-TYPE CATACLYSMIC VARIABLE
     D.L. Welch, McMaster University, on behalf of the MACHO
collaboration (cf. IAUC 6312), reports the discovery of an
SU UMa-type cataclysmic variable in the MACHO Project photometry
database, confirmed by inspection of images. The variable is
located at R.A. = 18h03m06s.03, Decl. = -27o30'45".5 (equinox
2000.0) and normally appears V=18.8 mag or fainter. 
During the period 1997 March 9.74 to 1999 Oct 21.40 UT, the 
MACHO Project collected 1165 observations of this object with 
the Mt. Stromlo 1.27-m telescope and normal outbursts appeared 
at intervals of approximately 10 days. Normal outbursts typically
peaked at V=16.6 mag.  At least six superoutbursts occured during 
this period, with peak brightnesses of about V=15.6 mag and 
durations of 10 days or longer. Finding charts, lightcurve plots 
and data can be obtained at http://vsnet.macho.mcmaster.ca/CV/index.html.

VSNET Home Page

Return to Daisaku Nogami

---

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