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| Query : 2000IBVS.4983....1S |
2000IBVS.4983....1S - IAU Inform. Bull. Var. Stars, 4983, 1 (2000/November-0)
Discovery of eclipsing binary nature of SAO 31628 = BD+49 2997, common comparison star for CH Cygni.
SOKOLOSKI J.L. and STONE R.P.S.
Abstract (from CDS):
SAO 31628, which is frequently used as a constant comparison star in observations of the variable symbiotic CH Cygni, has been found to be an eclipsing binary. The eclipse, which is seen in B light, lasts 5 hours and produces a flux decrease of over 20. We propose that SAO 31628 has an orbital period of 3.74783(3) days.
Abstract Copyright: ∼
Journal keyword(s):
Simbad objects: 2
| Number of rows : 2 |
| 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* V2365 Cyg | SB* | 19 24 14.7377937264 | +50 15 19.515050424 | 9.60 | 9.31 | A5 | 39 | 0 | |||
| 2 | V* CH Cyg | Sy* | 19 24 33.0657463320 | +50 14 29.095038672 | 8.14 | 8.77 | 7.08 | 5.345 | M7IIIab+Be | 798 | 0 |
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