[vsnet-alert 24437] MGAB-V207 at mag. 5.3: likely nova eruption! (already since July 4?)

[Patrick Schmeer pasc1312-aavso@yahoo.de via vsnet-alert]

MGAB-V207  (NLVY+N:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=844392

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)."
http://www.cbat.eps.harvard.edu/iau/cbet/004800/CBET004811.txt

Recent 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/light_curves/f55224a2-57e5-46b7-bb67-d354e29fc3e2
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,
Patrick