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MASTER OT J051032.58-692130.4: Possible Nova (12.0 mag) in the Large Magellanic Cloud (LMC)

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SPK
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MASTER OT J051032.58-692130.4: Possible Nova (12.0 mag) in the Large Magellanic Cloud (LMC)

"MASTER: very bright OT in Large Magellanic Cloud direction
MASTER OT J051032.58-692130.4 discovery - 12m OT in LMC"
ATel #9039: http://www.astronomerstelegram.org/?read=9039

The discovery and reference images are available at
http://master.sai.msu.ru/static/OT/051032.58-692130.4.png

R.A. 05h10m32.58s  Decl. -69°21'30.4"  (J2000.0)

A possible progenitor (21 mag) is listed in "The Initial Gaia Source List (IGSL)" (Smart, 2013) and the "Magellanic Clouds Photometric Survey: the LMC" (Zaritsky+, 2004):
- IGSL3 (05 10 32.580 -69 21 30.60): BJ= 21.288, RF= 20.810, G= 20.931 mag
- MCPS (05 10 32.56 -69 21 30.9): B= 21.490, V= 20.828, I= 20.547 mag

This possible nova is located 2' from SAO 249214 (V= 8.7 mag) and 9' from Nova LMC 2005.

Spectroscopy is urgently required.
 
Clear skies,
Patrick

SPK
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OGLE-IV Pre-discovery Observations (ATel #9040)

"OGLE-IV Pre-discovery Observations of MASTER OT J051032.58-692130.4"

Excerpt:
"... The star was severely saturated in the image acquired on 2016 April 28.97626 UT, meaning it was brighter than I=11 mag. The last pre-eruption image was taken eight nights earlier (on April 21.00403 UT).
The progenitor was clearly visible in the OGLE images ... and showed eclipsing-like variability with a period of 2.6508 +/- 0.0002 d. ..."

Full text (ATel #9040):
http://www.astronomerstelegram.org/?read=9040

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