Possible dwarf nova on the Digitized Sky Survey plates

TL;DR

This paper reports the discovery of a bright variable star in Scorpius, likely a dwarf nova, identified through historical photographic plates showing possible outbursts over 60 years ago.

Contribution

It presents the identification of a new variable star with historical photographic evidence, suggesting it may be a dwarf nova, expanding knowledge of variable stars in that region.

Findings

Possible outburst observed on plates from 60 years ago

Star identified as Romanov V1 in AAVSO VSX

Magnitude range from 14.4 to 21.7

Abstract

I report the discovery of a new bright variable star in the constellation Scorpius. It is most likely star OGLE BUL-SC23 396060 with position (J2000.0): RA 17:57:59.75, DEC -31:38:07.4. Magnitude range is 14.4 (B) - 21.7 (V). It is visible in the possible outburst on two digitized Palomar Sky Survey photographic plates, which were made 60 years ago. This object was registered as a variable star in the AAVSO VSX under the name of Romanov V1 and with UG: variability type.