[vsnet-campaign 11] ASCA - VSNET multiwavelength campaign on XTE J1118+480: optical high-speed photometry

[Taichi Kato <tkato>]

ASCA - VSNET multiwavelength campaign on XTE J1118+480: optical high-speed photometry

>    Anyone who will have a simultaneous run on this object will 
> be welcomed into this campaign. [...] The light curve has shown short-time
> fluctuation, so a shorter exposure time (a few second) is better for
> photometry, which means photomultiplier tube has advantage.

   Those who make CCD time-resolved photometry would be advised to use the
following comparison star, which lies 5' east to the variable.

   GSC 3451.1612
   11h 18m 40s.73  (J2000.0)
   +48o 03' 25".7

   The star has much advantage in the brightness and the color (V=10.96,
B-V=0.52).  This star is also a Tycho/Tycho-2 star.

   For more UBVRI sequence information . see vsnet-chat 2778,2779,2783

   http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Mail/vsnet-chat/msg02778.html
   http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Mail/vsnet-chat/msg02779.html
   http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Mail/vsnet-chat/msg02783.html

   and the updated Henden and Bruce sequence:

   http://ftp.nofs.navy.mil/pub/outgoing/aah/sequence/sumner/j1118.seq

Regards,
Taichi Kato

VSNET Home Page

---

vsnet-adm@kusastro.kyoto-u.ac.jp

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp