[vsnet-alert 25314] Re: [baavss-alert] [cvnet-outburst] RS Oph is quite bright

[J TOONE enootnhoj@btinternet.com via vsnet-alert]

The following visual observations were made in January:

RS Oph21-Jan-20210554GMTP(2)V(3)U10.8
RS Oph22-Jan-20210616GMTP(1)V(4)U10.5
RS Oph31-Jan-20210532GMTP(1)V(4)U10.5


RS Oph has been in an elevated state since mid-2017 and during 2020 
ranged between 10.1 and 11.0 so no real trend change to report for 
January.

John Toone

------ Original Message ------
From: "Gary Poyner" <garypoyner at gmail.com>
To: "Cvnet Outburst" <cvnet-outburst at groups.io>
Cc: "VSNET ALERT" <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>; "Baavss 
Alert" <baavss-alert at groups.io>; spectro-l at groups.io
Sent: Wednesday, 3 Feb, 21 At 14:20
Subject: Re: [baavss-alert] [cvnet-outburst] RS Oph is quite bright

I obtained two images this morning of RS Oph using the SLOOH C2 
telescope and the C14 at COAST, both located on Tenerife (and 
coincidentally at the same time)...


Feb 03.271    10.488V   COAST


Feb 03.271    10.018C   SLOOH


Checking the BAAVSS & AAVSO databases, there appears to be a slight 
increase in V magnitude from 2019-20, but RS Oph shows ~0.5V mean 
variation at minimum anyway.   Certainly worth following a little more 
rigorously over the coming weeks though.


Gary



On Tue, 2 Feb 2021 at 19:35, Patrick Schmeer via groups.io 
<http://groups.io>  <pasc1312-aavso=yahoo.de at groups.io 
<mailto:yahoo.de at groups.io> > wrote:
RS Ophiuchi  (NR+LB)
  https://www.aavso.org/vsx/index.php?view=detail.top&oid=20497 
<https://www.aavso.org/vsx/index.php?view=detail.top&oid=20497>

  Complete ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
  and Kochanek et al. 2017PASP..129j4502K) light curve and data:
 
https://asas-sn.osu.edu/sky-patrol/coordinate/fbb1bb4b-4ba2-43be-8343-3aee9ce66f91 
<https://asas-sn.osu.edu/sky-patrol/coordinate/fbb1bb4b-4ba2-43be-8343-3aee9ce66f91>

  AAVSO data:
  https://app.aavso.org/webobs/results/?star=000-BBZ-452 
<https://app.aavso.org/webobs/results/?star=000-BBZ-452>

  The latest recorded eruption was detected on 2006 February 12.
  Please keep an eye on this recurrent nova.

  Clear skies,
  Patrick








-- 

------------------------------------------------------
Gary Poyner FRAS
garypoyner at gmail.com <mailto:garypoyner at gmail.com>
www.variablestars.co.uk <http://www.variablestars.co.uk/>



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