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Special Notice #82: Update on possible X-ray transient/Nova [V598 Pup]

November 19, 2007: Further to AAVSO Special Notice #81, precise coordinates for the optical counterpart of the new X-ray source XMMSL1 J070542.7-381442 [V598 Pup] (Read et al., ATEL 1282) have been determined. The (J2000) coordinates are

RA 07:05:42.51 (+/- 0.05 arcsec) , Dec -38:14:39.3 (+/- 0.08 arcsec)

Coordinates were determined by A. Henden using V-band images supplied by S. Dvorak.

This object has now been entered into the AAVSO Variable Star Index (VSX) as: VSX J070542.5-381439

The VSX information page may be reached via the following URL:

Charts may be generated with VSP using the following URL:

A full sequence for this object is not yet available. The bright star HD 53893 (RA 07:05:00.720 , Dec -38:20:58.66 ) with V = 9.449 (Kharchenko 2001) may be used as a photometric comparison star. As stated in Special Notice #81, unfiltered photometry is not recommended due to the presence of numerous emission lines in the spectrum.

Please submit data on this object to the AAVSO as "VSX J070542.5-381439".

This AAVSO Special Notice was prepared by Matthew Templeton.



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Submitted by weo on Mon, 07/10/2017 - 17:15
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