|
other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
| Query : 2001MNRAS.325..143W |
2001MNRAS.325..143W - Mon. Not. R. Astron. Soc., 325, 143-150 (2001/July-3)
HD 9770, a southern active-chromosphere system.
WATSON L.C., PRITCHARD J.D., HEARNSHAW J.B., KILMARTIN P.M. and GILMORE A.C.
Abstract (from CDS):
The visual triple system HD9770 (BB Scl) has been the subject of a four-year programme of UVB(RI)C photometry and Hα échelle spectroscopy. Analysis of the data obtained over that period shows that star B, and probably also star A, of HD9770 is a binary. The A system comprises a K1V star, which may be in a binary system with another K dwarf. The B system is an eclipsing binary of the BY Dra type in which both stars are chromospherically active. An orbital period of 0.476525±0.000013d has been derived from the light curve in V. Physical parameters derived from analysis of the light curves in UBV(RI)C are presented.
Abstract Copyright: The Royal Astronomical Society
Journal keyword(s): line: formation - line: profiles - stars: activity - binaries: eclipsing - stars: chromospheres - stars: individual: HD9770
Simbad objects: 11
| Number of rows : 11 |
| 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 | HD 9770 | ** | 01 35 01.0078925286 | -29 54 37.342172838 | 8.605 | 8.03 | 7.096 | 6.551 | 6.035 | K1V | 162 | 0 |
| 2 | * eps Eri | BY* | 03 32 55.8444911587 | -09 27 29.739493865 | 5.19 | 4.61 | 3.73 | 3.00 | 2.54 | K2V | 2073 | 1 |
| 3 | V* V808 Tau | RS* | 04 49 12.9860653704 | +24 48 10.226849004 | 10.579 | 9.492 | K2Ve | 129 | 0 | |||
| 4 | HD 30957 | SB* | 04 56 26.0534511792 | +64 24 09.651226644 | 9.75 | 8.75 | K0 | 44 | 0 | |||
| 5 | HD 45088 | BY* | 06 26 10.2546417144 | +18 45 24.761018520 | 8.402 | 7.74 | 6.2 | K2Ve | 255 | 0 | ||
| 6 | V* DH Leo | RS* | 10 00 01.7108047320 | +24 33 10.079801604 | 9.47 | 7.982 | 7.3 | 6.898 | K0Vk | 164 | 0 | |
| 7 | V* LR Hya | BY* | 10 36 02.2111787040 | -11 54 47.931891552 | 8.89 | 8.03 | K1.5Vk: | 79 | 0 | |||
| 8 | V* V885 Her | BY* | 18 05 50.0163090096 | +21 26 17.325311856 | 11.26 | 10.26 | 10.04 | K7V+M0V | 25 | 0 | ||
| 9 | V* BY Dra | BY* | 18 33 55.7720712062 | +51 43 08.897780286 | 10.22 | 9.23 | 8.733 | K4Ve+K7.5Ve | 639 | 0 | ||
| 10 | HD 188088 | BY* | 19 54 17.7449414704 | -23 56 27.859371124 | 7.263 | 6.213 | 5.58 | 5.09 | K3VaCN1 | 141 | 0 | |
| 11 | V* HZ Aqr | RS* | 21 32 11.9273343357 | +00 13 18.131686536 | 10.85 | 9.2 | K3V | 151 | 1 |
To bookmark this query, right click on this link: simbad:objects in 2001MNRAS.325..143W and select 'bookmark this link' or equivalent in the popup menu