[vsnet-alert 24603] ATO J104.6895+17.0332: possible recovery of the 1892 nova? (=NSV 3313)
Taichi Kato
tkato at kusastro.kyoto-u.ac.jp
Fri Aug 28 11:10:35 JST 2020
ATO J104.6895+17.0332: possible recovery of the 1892 nova? (=NSV 3313)
ASAS-SN data:
https://asas-sn.osu.edu/light_curves/4ff95625-bc9b-445a-916b-a04de64980c9
I found a period of 0.477906(2) d with minima of
different depths in one cycle.
Gaia:
065845.488 +170159.74 (2000.0) Gaia_DR2_3361199697425899008 plx=0.164(0.065) dismod=13.9 pmra=-0.029(0.121) pmdec=-1.322(0.097) G=15.604 BP=15.760 RP=15.355
The Gaia color is too blue for a W UMa star.
Also detected as a variable:
065845.4 +170159 (2000.0) PS1RRJ065845.48+170159.8 RR g=15.21(0.47) P=0.31424 0.03/0.32
The location is sufficiently close to the suspected
nova in 1892 and this object would be the quiescent
counterpart. Spectroscopy is desired.
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