Electronic Telegram No. 5001
Central Bureau for Astronomical Telegrams
Mailing address:  Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau@eps.harvard.edu (alternate cbat@iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


V1674 HERCULIS
     R. E. Schmidt, Burleith Observatory, Washington, DC, reports the
detection of a photometric period for V1674 Her = Nova Her 2021 (cf. CBETs
4976, 4977) of 1.7076 +/- 0.0011 hours, with a Cousins I-band amplitude of
0.0226 magnitude (curve fit), based on 630 observations (0.32-m astrograph)
over 25.133 days (epoch 2021 June 18.2321 UT).  Observed I_c magnitudes:
June 30.1737, 11.55; July 3.2444, 12.00; July 6.2275, 12.39, July 7.1643,
12.50; July 10.0924, 12.87; July 12.0900, 13.04; July 13.2027, 13.12.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2021 CBAT
2021 July 16                     (CBET 5001)              Daniel W. E. Green