[vsnet-alert 16643] Re: Historical optical maximum of BL Lacertae

[Miguel Rodríguez]

Sorry, it is a 0.44 mag rise. It is yet a large rebrightening


----- Mensaje original -----
> De: Miguel Rodríguez <rxand at yahoo.com>
> Para: "baavss-alert at yahoogroups.com" <baavss-alert at yahoogroups.com>; "vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp" <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>
> CC: 
> Enviado: Lunes 25 de noviembre de 2013 10:13
> Asunto: [vsnet-alert 16642] Re: Historical optical maximum of BL Lacertae
> 
> My observations assure this. I've recorded an increment more than 0.5 magV, 
> in 24h:
>  
> OBS: Miguel Rodriguez Marco
> TEL: 0.20-m f/8 Ritchey-Chretien + CCD
> CCD: QHY9 KAF-8300 Bessell-Cousins BVRI filters
> VPhot 3.1
> AAVSO
> OBJECT  DATE           MAG     +/-   OBS  CAT
> ------  -------------  -----   ----  ---  -------------
> LacBL  20131122.9300  13.29V  0.15  Mro  AAVSO  8617MLC
> LacBL  20131123.9337  12.85V  0.13  Mro  AAVSO  8617MLC
> 
> 
> 
> 
> ----- Mensaje original -----
>> De: FIDRICH Robert (Fidusz) <fidusz at zpok.hu>
>> Para: baavss-alert at yahoogroups.com; 
> vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp
>> CC: 
>> Enviado: Lunes 25 de noviembre de 2013 10:03
>> Asunto: [vsnet-alert 16641] Historical optical maximum of BL Lacertae
>> 
>> Historical optical maximum of BL Lacertae
>> 
>> ATel #5597; V. M. Larionov et al.
>> 
>> We report on optical observations of BL Lacertae carried out at the
>> Crimean and St.-Petersburg observatories in the framework of the GASP-WEBT
>> collaboration.
>> 
>> Starting from early 2013, when the source was observed at its historical
>> minimum levels (R about 15.2), BL Lacertae has shown an almost continuous
>> brightening until November 23.9, when it reached R = 12.34. This is the
>> maximum optical brightness level ever detected, a bit higher than that
>> observed during the 1997 outburst (see e.g. Villata et al. 2004, A&A, 
> 421,
>> 103).
>> 
>> http://www.astronomerstelegram.org/?read=5597
>> 
>> Clear skies,
>> 
>> -- 
>> FIDRICH Robert (Fidusz)
>> HAA/VSS
>> drotlevel/email: fidusz at zpok.hu
>> #jabber/gtalk: fidusz at jabber.hu
>> 
>