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MGAB-V207 at mag. 5.3: likely nova eruption! (in Reticulum)

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SPK's picture
MGAB-V207 at mag. 5.3: likely nova eruption! (in Reticulum)


Excerpts from CBET 4811:
"Robert H. McNaught, Coonabarabran, NSW, Australia, has found an apparent 5th-magnitude nova on CCD images obtained on July 15.590 UT with a Canon 6D camera and an 8-mm-f.l. f/2.8 lens"
"... he obtained visual mag 5.3 with 2.3x40 opera glasses (using AAVSO A chart for MGAB-V207)." (behind paywall)

Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) light curve and data:
MGAB-V207 20200702.183 16.56g ASN
MGAB-V207 20200702.186 16.33g ASN
MGAB-V207 20200704.189 15.51g ASN
MGAB-V207 20200708.171 6.78g ASN
MGAB-V207 20200708.172 6.78g ASN
MGAB-V207 20200708.173 6.77g ASN
The eruption apparently began already on 2020 July 4.

Spectroscopy, multiband photometry, and precise astrometry are urgently required.

Clear skies,

weo's picture
MGAB-V207 = N Ret 2020 - Alert Notice 711

AAVSO Alert Notice 711 reports on the discovery of the nova outburst of MGAB-V207 = N Ret 2020. Please see the notice for details and observing instructions.

This object has threads in the following forums: Time Sensitive Reports, Novae, and Cataclysmic Variables. To stay informed about it, subscribe to these threads (option 1 below under Subscribe in each thread) - see comments and questions from observers, information about any campaigns on it, and notes from AAVSO HQ. Add a post yourself  -  join in the discussion!

Many thanks, and Good observing,

Elizabeth O. Waagen, AAVSO HQ

NuSTAR (X-ray) Observing

Hi All,

I am part of a group that distributes information about potential multi-instrument simultaneous observing opportunities. As part of this group, I saw an alert about NuSTAR observations of this source. Since I am not directly involved with this science, I'm not sure how useful simultaneous X-ray + optical observations are. But in case they are I wanted to post the planned observation times.


This translates to July 17, 2020 (tonight) from 23:35:16 UTC to July 19, 2020 10:45:00.
I am hopeful the people more directly involved with this outburst can comment on potential research applications and collaboration between professional astronomers and AAVSO members/observers.


Greg Sivakoff

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