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| Query : 1987ApJ...322..842R |
1987ApJ...322..842R - Astrophys. J., 322, 842-851 (1987/November-0)
The evolutionary status of 4U 1820-30.
RAPPAPORT S., NELSON L.A., MA C.P. and JOSS P.C.
Abstract (from CDS):
Abstract Copyright: ∼
Journal keyword(s): Clusters: Globular - Stars: Binaries - Stars: Evolution - X-Rays: Binaries
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 | NGC 6624 | GlC | 18 23 40.51 | -30 21 39.7 | ~ | 939 | 1 | |||||
| 2 | X Sgr X-4 | LXB | 18 23 40.57 | -30 21 40.6 | 19.06 | 18.81 | ~ | 1056 | 1 |
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