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| Query : 2000IBVS.4950....1K |
2000IBVS.4950....1K - IAU Inform. Bull. Var. Stars, 4950, 1 (2000/September-0)
Period variation of XX Cygni revisited.
KISS L.L. and DEREKAS A.
Abstract (from CDS):
New CCD observations are presented and the period variation of XX Cygni is discussed. Five new times of maxima were determined and the most recent O-C diagram was created by collecting all available epochs of maximum. We did not find evidence of possible period change since that jump in 1942 described in details by Szeidl & Mahdy (1981). A new accurate ephemeris is given.
Abstract Copyright: ∼
Journal keyword(s):
Simbad objects: 3
| Number of rows : 3 |
| 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* XX Cyg | SX* | 20 03 15.6420308880 | +58 57 16.525249632 | 11.99 | 11.86 | A5-F5 | 127 | 0 | |||
| 2 | TYC 3948-2105-1 | * | 20 03 24.0582387024 | +59 00 18.979720056 | 12.48 | 11.07 | ~ | 5 | 0 | |||
| 3 | TYC 3948-2542-1 | * | 20 03 35.7883005312 | +58 55 21.331538832 | 11.14 | 10.58 | ~ | 4 | 0 |
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