Central Bureau for Astronomical Telegrams
IAUC 4915: HDE 245770; EDITORIAL NOTICE; AX Per
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Circular No. 4915
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505
MARSDEN or GREEN@CFA.BITNET MARSDEN or GREEN@CFAPS2.SPAN
HDE 245770
C. Bartolini, A. Guarnieri, A. Piccioni and M. Teodorani,
Department of Astronomy, Bologna University, communicate that
photoelectric photometry of HDE 245770 (cf. IAUC 4913) obtained
at Bologna Observatory with the 0.60-m reflector on Nov. 13 and
27 indicate that the star is 0.25 fainter in V than last March,
B-V is 0.05 redder, and U-B is 0.05 more negative. Provisional
reductions yield: Nov. 13.97 UT, V = 9.18, B-V = +0.48,
U-B = -0.65; Nov. 28.17, 9.21, +0.48, -0.66.
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AX PERSEI
Visual magnitude estimates by J. E. Bortle, Stormville, NY (cf.
IAUC 4820): Aug. 9.13 UT, 9.7; 25.1, 9.7; 31.1, 9.6; Sept. 25.1,
9.5; Oct. 5.1, 9.5; Nov. 25.0, 9.4.
1989 November 30 (4915) Daniel W. E. Green
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