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| Query : 2001A&A...366..490S |
2001A&A...366..490S - Astronomy and Astrophysics, volume 366, 490-497 (2001/2-1)
Blue stragglers in open clusters. III. NGC 7789.
SCHOENBERNER D., ANDRIEVSKY S.M. and DRILLING J.S.
Abstract (from CDS):
We performed for the first time a detailed LTE spectroscopic study of a sample of blue straggler stars in the moderately old open cluster NGC 7789. For eight stars the parameters and abundances of several elements were determined. The cluster members show a remarkable surface magnesium deficiency which is quite unusual for late B - early A stars. Iron and titanium abundances are in agreement with other photometric and spectroscopic estimates of the NGC 7789 metallicity. All the confirmed blue stragglers have rather low projected rotational velocities (with one exception for K88, vsini=80km/s).
Abstract Copyright: ∼
Journal keyword(s): stars: open clusters and associations: individual: NGC 7789 - stars: blue stragglers - stars: abundances
CDS comments: Table 1 : cross-id. GET (in SIMBAD, Cl* NGC 7789 G ) not coherent with 1998PASP.110.1172G
Simbad objects: 10
| Number of rows : 10 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | * alf Lyr | dS* | 18 36 56.33635 | +38 47 01.2802 | 0.03 | 0.03 | 0.03 | 0.07 | 0.10 | A0Va | 2687 | 1 |
| 2 | NGC 7789 88 | SB* | 23 56 20.1939677904 | +56 48 04.661709444 | 13.48 | 13.0376 | 12.517 | ~ | 12 | 0 | ||
| 3 | NGC 7789 316 | BS* | 23 56 54.2384834544 | +56 40 46.790111712 | 14.15 | 13.7518 | 13.270 | ~ | 17 | 0 | ||
| 4 | NGC 7789 371 | BS* | 23 56 59.0233671600 | +56 47 33.118292724 | 13.27 | 12.9070 | 12.419 | A3V | 23 | 0 | ||
| 5 | NGC 7789 409 | * | 23 57 02.5906117152 | +56 47 02.160563064 | 13.29 | 12.9210 | 12.520 | A1 | 15 | 0 | ||
| 6 | NGC 7789 | OpC | 23 57 20.2 | +56 43 34 | 7.68 | 6.7 | ~ | 528 | 0 | |||
| 7 | NGC 7789 677 | * | 23 57 25.1842322040 | +56 38 00.644665596 | 11.24 | 11.0805 | 10.785 | ~ | 16 | 0 | ||
| 8 | NGC 7789 746 | BS* | 23 57 30.3612161664 | +56 44 30.351673788 | 13.13 | 12.8105 | 12.344 | ~ | 23 | 0 | ||
| 9 | NGC 7789 1211 | Pe* | 23 58 25.5568305648 | +56 42 24.766198776 | 11.5 | 11.4814 | 11.160 | B7VSi | 21 | 0 | ||
| 10 | NGC 7789 1270 | SB* | 23 58 37.8308645875 | +56 45 45.033728848 | 13.92 | 13.46 | ~ | 11 | 0 |
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