Re: ASAS 002511 - TASS observations

[Michael Sallman <msallman@pro-ns.net>]

Michael,

I missed the proper motion. I did notice a radio source nearby, but 
looking again I see that it's about 5' away.

Thanks for the info,
Mike

Stupendous Man wrote:
>   Michael Sallman wrote:
> 
> 
>>Anyway, I'm wondering if anyone could enlighten me as to what about it 
>>identifies it as a dwarf nova versus a blazar? The superhumps?
> 
> 
>   Superhumps, yes, that's a dead giveaway.  Also, if you look up 
> this star in the USNO B1.0 (which you can reach from SIMBAD or
> Aladin), you'll see that it has a proper motion of -70 milliarcsec
> per year with an uncertainty of about 6 milliarcseconds per year.
> That's a very significant proper motion, which indicates an object
> within our own galaxy.
> 
>   I would also suspect that the lack of very strong radio emission
> would disqualify it as a blazar ... at least, I don't know of radio
> emission from the object.  Hmm.  No, it appears that there is no
> radio source at this position in the NVSS (a radio survey at 21 cm
> by the VLA).  Some (most? all?) blazars are strong radio sources.
> 
>                                      Michael
> 
> 
>