[vsnet-alert 19818] OGLE-IV Pre-discovery Observations of MASTER OT J051032.58-692130.4 (ATel #9040)

[Patrick Schmeer]

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

Regards,
Patrick