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[vsnet-alert 7693] Re: Possible Nova in Sgr



Dear colleagues,

Arne wrote:
> It is given there as
>     RA   (J2000)  DEC         V     B-V
> 18:07:20.41  -27:24:32.6   13.247  1.490
> with large photometric error indicating variability. Coupled
> with the 2MASS bright detection, this is most likely a Mira.

Taichi wrote:
> the following data).  The object was bright in 2002 summer, indicating
> that the object is likely a Mira-star, which can be identical with
> V4006 Sgr.  Kanatsu did not detect other different variable star canditates
> near the nominal position of V4006 Sgr.

So, it is likely that Possible Nova in Sgr is a Mira variable
identified with:

= V4006 Sgr
  18h07m15s.39 -27o25'35".1  Mag(max):11.6  Mag(min):<14.4  MagSystem:P  Type:M  Epoch:37846  Period:281
= OGLE2-BUL-SC18-V1606
  18h07m21s.13 -27o24'21".8  Type:trans
= MSX5C G003.7266-03.3729
  18h07m20s.69 -27o24'32".0  InScanError:2.2"  CrossScanError:1.5"  Flux(A):3.8583  Flux(C):2.5987  Flux(D):1.9344  Flux(E):3.1353

No I-band magnitude is recorded for OGLE2-BUL-SC18-V1606, probably too
bright I guess.

Best regards,

--
Seiichi Yoshida
comet@aerith.net
http://vsnet.aerith.net/


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