[vsnet-alert 20549] Re: ASASSN-17ah: very bright CV candidate on the rise, could also be a nova

[Sebastian Otero]

Hi Kris,

Yes, because Luyten's variables are usually 1' off or more.
This one was 1' away. The range as 13.0 - 17.0p, coincident with this star's 
range and there was no counterpart at the stated original position.

Usually Luyten's variables are large amplitude miras but there is no red 
star nearby this time. Since this one was bright and very active, he seems 
to have recorded the whole range in different nights.

Cheers,
Sebastian

----------------------
Sebastian Otero
VSX Team
American Association of Variable Star Observers

-----Mensaje original----- 
From: Kris Stanek
Sent: Monday, January 9, 2017 7:45 AM
To: Sebastian Otero
Cc: Kris Stanek ; vsnet-alert at kusastro.kyoto-u.ac.jp
Subject: Re: [vsnet-alert 20545] ASASSN-17ah: very bright CV candidate on 
the rise, could also be a nova


Dear Sebastian,

nothing was listed in Vizier, so I assumed this was a new variable.

Best wishes,

Kris

On Sun, 8 Jan 2017, Sebastian Otero wrote:

> Hi Kris,
>
> it is a dwarf nova, likely UGSS and can be identified with NSV 4402.
> There are plenty of ASAS-3 data for it:
>
> http://www.astrouw.edu.pl/cgi-asas/asas_variable/090927-5632.0,asas3,0,0,500,0,0
>
> Cheers,
> Sebastian
>
> ----------------------
> Sebastian Otero
> VSX Team
> American Association of Variable Star Observers
>
> -----Mensaje original----- From: Kris Stanek
> Sent: Sunday, January 8, 2017 7:11 PM
> To: ASASSN
> Subject: [vsnet-alert 20545] ASASSN-17ah: very bright CV candidate on the 
> rise, could also be a nova
>
>
> http://www.astronomy.ohio-state.edu/~assassin/transients.html
>
> ASASSN-17ah 9:9:27.94 -56:32:0.8 2017-01-7.18 12.86
>
> very bright CV candidate on the rise, could also be a nova
> (l,b=275.745,-5.871) or another type of transient, V>17.6 on
> 2017-01-01.14, V=14.8 on 2017-01-04.25, V=13.1 on 2017-01-07.18, V=12.9 on
> 2017-01-08.31
>
>
>
>
> ---
> El software de antivirus Avast ha analizado este correo electrónico en 
> busca de virus.
> https://www.avast.com/antivirus
>
>

-- 



---
El software de antivirus Avast ha analizado este correo electrónico en busca de virus.
https://www.avast.com/antivirus