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Brian, I don't know the AC 2000 catalogue but surely the given position
coincides with the location of RX J0640-24 and the noted magnitude (11.8 B =
about 118 V for a DN) fits that for the outburst.
There is visually no other star brighter than magnitude 13 within 2
arcminutes of the location.
The 'coincidence' just confirms RX J0640-24 as a frequent
erupter!
I often have the impression that the near equatorial region (DE +10 to -25)
is 'under' monitored by VS observers. It is in reach of Northern observers (a
bit near the horizon though) and so the Southern groups rather looks more South.
I have reasoned that way ...
Due to my backyard topology I have no means to monitor targets North of -15
except around culmination. But RX J0640-24 is South of that...shame.
Berto
>>> Brian Skiff <bas@lowell.edu> 02/24/00 11:30PM >>> My reason for asking about an accurate position for this object is that I noticed that the AC2000 catalogue contains a bright star near the nominal location that may be an early outburst of the dwarf nova. It is only a single position, and thus should be treated with some caution: 6 40 47.90 -24 23 15.3 eq. 2000/ep. 1911.016 The blue magnitude is listed as 11.8. There is no star so bright on the DSS image of the field. \Brian |
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