1987JAVSO..16....4M

Query : 1987JAVSO..16....4M

1987JAVSO..16....4M - J. Am. Assoc. Variable star obs., 16, 4-5 (1987/June-0)

Period changes in eclipsing binary stars observed by amateurs.

MALLAMA A.

Abstract (from CDS):

Recent period changes in UU And, SW Cyg, TY Del, TW Dra, TU Her, Z Per, and Y Psc have been revealed by visual times of minima obtained over the past two decades. New ephemerides are reported for these stars.

Abstract Copyright: ∼

Journal keyword(s): eclipsing binary stars

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* UU And EB* 00 43 45.0804672360 +30 56 19.667766984   12.48 11.72 12.145   F5 48 0
2 V* Z Per EB* 02 40 03.2333723952 +42 11 57.693911676   10.25 10.06     A0 59 0
3 HD 139319 ** 15 33 51.05705 +63 54 25.6950           A9V+F7V 242 0
4 HD 139319A SB* 15 33 51.0591158448 +63 54 25.708209264   7.75 7.46     A5m 249 0
5 V* TU Her SB* 17 13 35.3658300768 +30 42 36.042435936   11.24 10.792 10.877   kA6hF0mF2 81 0
6 V* WW Cyg SB* 20 04 02.7108881088 +41 35 16.462624380   10.163 10.10   9.875 B8k:+G? 118 0
7 V* SW Cyg SB* 20 06 57.9309043632 +46 17 58.151017284   9.57 9.35     A2 172 0
8 V* TY Del EB* 21 04 21.9803755296 +13 12 53.556453540   10.27 10.08 10.144   A0 56 0
9 V* Y Psc SB* 23 34 25.3846714008 +07 55 28.524147636   9.62 9.40     A3V+K0 111 0

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