[vsnet-outburst 8031] Re: [AAVSO-DIS] HS2331+3905

[Wolfgang Renz]

Hello

It just cleared the roof above my balcony. And its now already ~ 11.1. mag.
So if one wants to provide some brighter comps It would be the right time.

> The var is situated ~ 35'' NW of the 12.7 mag comp star.
Due to proper motions its now actually ~ 20'' W of the 12.7 mag
comp star.

Clear skies
 Wolfgang

-- 
Wolfgang Renz, Karlsruhe, Germany
Rz.BAV = WRe.vsnet = RWG.AAVSO



Wolfgang Renz wrote:
> Hi Dave
> 
> You must insert a space between HS and the coords in the name.
> If you want a cross for the var, you'll have to set the LM to 17 mag.
> The var is situated ~ 35'' NW of the 12.7 mag comp star.
> See e.g.:
> <http://www.aavso.org/cgi-bin/vsp.pl?action=render&name=HS+2331%2B3905&ra=&dec=&charttitle=&chartcomment=&aavsoscale=Choose&fov=60&resolution=150&maglimit=17&ccdbox=30&north=up&east=right&othervars=on&Submit=Plot+Chart>
> 
> BTW:
> The mag value of the 10.9 mag comp star in the Sumner sequence
> is not shown in the chart. Its the brighter star ~ 5' SSW of the 11.8
> mag comp star. Its shown in Garry's chart at:
> <http://tech.groups.yahoo.com/group/baavss-alert/files/HS2331+3905_C_reverse.jpg>
> 
> Clear skies
> Wolfgang
> 
> -- 
> Wolfgang Renz, Karlsruhe, Germany
> Rz.BAV = WRe.vsnet = RWG.AAVSO
> 
> 
> 
>> Dave Lane wrote:
>> Can someone provide the "identity" of this star that is searchable on
>> the AAVSO so I can acquire a chart, etc.? HS2331+3905 returns nothing.
>> 
>> ... Dave
>> 
>> 
>> 
>> arne wrote:
>>> Note that the quiescent magnitude of this WZ Sge type cataclysmic
>>> variable is about 16.5, so if it is a normal outburst, it should
>>> reach about 9th magnitude.  Currently it is at V=14.1, so it will
>>> rapidly rise over the next 24 hours.  Everyone will have a chance
>>> at it, if it is clear in your neck of the woods (and you are not
>>> too far south!).  Good luck and clear skies!
>>>
>>> There is a BVRI photometric calibration file, as mentioned
>>> by Uemura-san, at
>>> ftp://ftp.aavso.org/public/calib/hs2331.dat
>>> and a BV extracted sequence by Bruce Sumner at
>>> ftp://ftp.aavso.org/public/calib/sumner/hs2331.seq
>>>
>>> It will serve for CCD observers, but once HS2331 exceeds
>>> 12th magnitude, we will need to extend this sequence to brighter
>>> stars from Tycho2 for the visual observers.
>>> Arne