[vsnet-chat 3110] Recurrent Nova LMC V1341 (Greaves)

[Taichi Kato <tkato>]

From crawl@zoom.co.uk Mon Jun 19 08:25 JST 2000
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Date: Sun, 18 Jun 2000 23:26:54 +0000
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To: tkato@kusastro.kyoto-u.ac.jp
Subject: re [vsnet-chat 3109] Re: Recurrent Nova LMC V1341
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UCAC1 data was exposed in half degree fields.  The documentation to the
UCAC1 data states that although UCAC1 photometry may be good to 0.1 mag
in the UCAC1 passband for any particular field, different fields should
only be assumed to being good to 0.3 mag in that passband.

The sequences mentioned in vsnet-chat 3109 are probably just within the
same field, but they can not be in the same field as LMC V1341.
However, they are of course in very adjacent fields that are probably
near contemporaneous.

In that light, find below the UCAC1 magnitudes for the sequence stars
noted in vsnet-chat 3109.  After that the GSC identifiers for three
stars within half a degree of LMC V1341 are given, along with their
UCAC1 magnitudes.  GSC identifiers are used as these are the easiest
identifications for users of software planetaria [their GSC 1.1 J2000.0
co-ordinates are also quoted for convenience].  Two UCAC1 only stars are
also noted due to a sparsity of GSC stars.

Note also that LMC V1231 and V1359 lie within 10' of LMC V1341 and are
in the mag 14-15 range, so care should be taken when choosing faint end
stars.

LONEOS            1UCAC mag

Martin LMC II-1   11.86
Martin LMC II-2   12.92
Martin LMC II-3   13.12
Martin LMC II-4   13.75
Martin LMC II-6   NOT a 1UCAC star

GSPC   1UCAC mag

S056-C  10.55
S056-D  10.91
S056-E  11.29
S056-F  12.73
S056-G  13.57


LMC V1341_Field Star  RA, Dec                    1UCAC mag

GSC 9169 1555           05 09 05, -71 43 00    10.16
GSC 9169 1568           05 09 46, -71 37 46    12.01
GSC 9169 1064           05 09 43, -71 47 16    12.86
1UCAC                       05 11 51, -71 38 51    14.19
1UCAC                       05 09 51, -71 34 00    15.13


The actual use of such data, in tandem with vsnet-chat 3109, for
deriving V mags for these stars is everybody else's problem ;-)


John

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