> Walter F. (Štefánik Observatory, Prague, Czech Republic)


> Light curve and airmass <

> Global light curve (MOOZ) <
> Close vicinity of the variable <

> Show source data <

JD format:	geocentric heliocentric

date:	16.8.2019 19:19-2:34 UT


Photometric filter:	U B V R I Clear u v b y (Strömgren phot. system) other:

Photometric system:	instrumental standardní photometric system UBVRcIc

Notes:	V2_C9_90.800.C.2x2 info

Comment

Walter F., 17. 8. 2019
V2517 Cyg seems to be an algolid with period 1.38890d according to AAVSO VSX. This is consistent with uploaded B.R.N.O. data. Period 0.347225 is wrong.
Walter F., 17. 8. 2019
Not significant channge of brightness by observation of 16.8.2019 19:00 - 17.8.2019 2:30 UT. Primary minimum predicted at 21:07 for elements 53233.5167+0.347225*E.

No records