[vsnet-alert 23463] PNV J06095740+1212255 possible orbital period

[Denis Denisenko d.v.denisenko@gmail.com via vsnet-alert]

This possible Nova in Orion was observed by Zwicky Transient Facility
(Masci et al., 2019, PASP, 131, 8003) in g and r filters. The data
from MJD=58205 to 58482 (2018 Mar. 28 - Dec. 30) are publicly
available at irsa.ipac.caltech.edu. The object was varying from 18.5
to 19.8 in r and from 19.3 to 20.6 in g filter. The light curve is
posted at

http://scan.sai.msu.ru/~denis/J060957+121225-ZTF-LC.gif

The search for the period from combined g and r data (shifted by 0.75m
to match) by Lafler-Kinman and Deeming methods is giving the most
likely orbital period of 0.42258 d (10.14 hr). The preliminary
ephemeris of eclipses:

JD = 2458380.863 + 0.42258 * E

Color-combined DSS finder chart (10'x10' FOV):
http://scan.sai.msu.ru/~denis/J060957+121225-BRIR.jpg

Unfortunately, the object is located too close to the Sun (44 degree
on Aug. 08) for time-resolved photometry.

Denis Denisenko