Outburst of Var25 Oph

(vsnet-alert 460)

Makoto Iida (Nagano, Japan) reports his distection of an outburst of Var25 Oph (Antipin, IBVS No. 4344) as indicated by the following CCD observation.

CCD magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
OPHVAR25       960712.515   160  Arm.VSOLJ

Outburst and quiescent CCD images provided by Iida are available at:

/vsnet/ftpfile/DNe/var25oph/ophvar25.gif

V-band CCD image on July 16 (Ouda Station, Daisaku Nogami) -- already faded

[from vsnet #648 -- new dwarf nova near 66 Oph]

>   In IBVS No. 4344, Antipin reports another new dwarf nova located near
> 66 Oph.
> 
>   Var25 Oph
> 
>   18h 04m 17s.3  +04o 43' 44" (J2000.0)
>       UG  15.0-(21.0p
> 
>   Following outburst observations are reported:
> 
>      JD      mag
>   (2400000+)
>  -----------------
>   42957.338 15.40
>   42957.370 15.35
>   42957.403 15.35
>   42957.437 15.40
>   42957.469 15.14
>   42957.499 15.14
>   42961.323 15.35
>   42961.499 15.46
>   42963.332 15.63
>   42963.505 15.57
> 
>   44131.297 15.68
> 
>   48090.305 14.93
>   48091.305 15.29
>   48092.427 15.32
> 
>   The object is reported to be invisible on the POSS, indicating a large
> outburst amplitude of >6 mag.  Follow-up observations are recommended.

Regards,
Taichi Kato

Var25 Oph page

Return to HomePage