  I report my discovery of the large-amplitude Algol-type eclipsing binary
system which was initially added to the AAVSO International Variable Star Index
(VSX) under the designation of Romanov V20. I describe selection criteria for
searching for variability among other stars, the search of photometric data
from several sky surveys, and my observations using remote telescopes, and the
analysis of the data in the VStar software. I find the orbital period, eclipse
duration, and magnitude range in Johnson B, V and Sloan g, r, i bands for
primary and secondary eclipses.
