[vsnet-alert 11705] Re: V3890 Sgr recent behaviour

[Michael Linnolt]

Aloha Berto,

Below are my last 2 observations. Last night's was extremely low in bright moonlight, but at least no big outburst!

2455159.7208  NOV 24.2208  <13.0
2455167.7042  DEC 02.2042  <11.5

Best regards,
Mike

----- Original Message -----
From: Berto Monard <bmonard at mweb.co.za>
Date: Saturday, November 28, 2009 6:23 am
Subject: [vsnet-alert 11699] V3890 Sgr recent behaviour
To: "Vsnet-Alert at Ooruri.Kusastro.Kyoto-U.Ac.Jp" <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>, AVSON at yahoogroups.com, cvnet-outburst at yahoogroups.com, "Cba-News at Cba.Phys.Columbia.Edu" <cba-news at cba.phys.columbia.edu>

> Hello,
> 
> It might be nothing unusual but V3890 Sgr is getting quite 
> bright lately as 
> shown below.
> Something similar happened to V1017 Sgr two years ago with the 
> brightness 
> peak also occuring while behind the sun. Both are symbiotic 
> stars which have 
> shown recurrent nova outbursts.
> 
> Can someone still follow up on V3890 Sgr and see what happens 
> further. For 
> me the season is over.
> 
> 
> Regards,
> 
> Berto Monard
> CBA Pretoria
> 
> PS I can provide the photometric sequence that I have been using 
> since 2005
> 
> //////////
> 
> V3890 Sgr observations of the past year with differential 
> photometry from V 
> filtered CCD images:
> 
> JD / V Magnitude
> 
> 2454786.22  16.10 CCD-V  MLF
> 2454884.60  15.56 CCD-V  MLF
> 2454898.63  15.27 CCD-V  MLF
> 2454919.60  15.21 CCD-V  MLF
> 2454926.65  15.65 CCD-V  MLF
> 2454940.40  15.85 CCD-V  MLF
> 2454951.60  15.75 CCD-V  MLF
> 2454969.60  15.96 CCD-V  MLF
> 2454977.60  16.06 CCD-V  MLF
> 2455002.50  16.75 CCD-V  MLF
> 2455014.30  16.81 CCD-V  MLF
> 2455028.25  16.38 CCD-V  MLF
> 2455056.30  15.66 CCD-V  MLF
> 2455074.20  15.86 CCD-V  MLF
> 2455080.30  16.24 CCD-V  MLF
> 2455096.20  15.76 CCD-V  MLF
> 2455112.25  15.47 CCD-V  MLF
> 2455118.20  15.32 CCD-V  MLF
> 2455139.25  15.35 CCD-V  MLF
> 2455158.25  14.77 CCD-V  MLF
> 2455162.20  14.45 CCD-V  MLF