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(cba:news) outburst of X-ray source 1RXS J074112.2-094529 (Joe Patterson) [2012-01-13T19:58:25Z]


Dear CBAers,

This vsnet message refers to a new star, very likely a freshly erupted short-period dwarf nova. Probably just up our alley, decently equatorial and transiting near midnight. Can someone observe it and suggest a comparison star for most of us to use?

Also, I wanted again to commend Paloma = RX0524+42. For those of you with a little extra by way of aperture, courage, or effrontery, it will be a great target. (Around 17.5, but with a *large* amplitude variation.) Gotta be long time series, though - the light curve is complex, and will never surrender to the faint of heart. The star is probably an asynchronous AM Her star, but it has at least 3 prominent periods in its light curve (actually >8, but 3 independent).

No change in other targets. As Enrique pointed out, the ER UMa campaign is going great... but BK Lyn, in the same part of the sky, needs your love too - and is somewhat the easier target, since the up-and-down ramps are less bothersome.

joe


MPRE 2012-0001
  R.A.  07h41m12s.70
  Decl. -09o45'55".9  (2000.0)
  Mag.  14.1-<15.6C
  Type  ?
= 1RXS J074112.2-094529

I checked the Minor Planet Checker, the SIMBAD database and 2MASS
images, and found nothing at this position.

   GSC 2.3.2 has a 19.1(Bj) mag counterpart.  The object looks like
a dwarf nova with a relatively large outburst amplitude.