2007BaltA..16..311A

Query : 2007BaltA..16..311A

2007BaltA..16..311A - Baltic Astronomy, 16, 311-326 (2007/December-0)

STROEMGREN photometry of the supergiants HD 4841 (B5Ia) and HD 194279 (B2Ia)

ADELMAN S.J. and YUECE K.

Abstract (from CDS):

We investigated the variability of the BIa supergiants HD 4841 and HD 194279 using Stroemgren photometry obtained with the Four College Automated Photoelectric Telescope, Arizona and the 0.4-m telescope of TUeBITAK National Observatory (TUG), Turkey. Both stars are definitely variable with amplitudes of order 0.10 mag in u, v, b and y. The Turkish photometry with several observations per night suggests a more rapid variability than the once per night American photometry. The periods of variability are likely to be of the order of one day.

Abstract Copyright: ∼

Journal keyword(s): stars: supergiants - variable: general - stars: individual (HD 4841, HD 194279)

CDS comments: in ref BURKI 1978A&A....65..357B instead of A&A.64.357

Simbad objects: 8

goto View the references in ADS

Number of rows : 8
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 Ass Cas OB 7 As* 00 50 14 +64 04.3           ~ 65 0
2 HD 4841 Em* 00 51 25.9269354192 +63 46 52.209157764 7.13 7.43 6.86 6.28 5.90 B5Ia 89 0
3 HD 5550 SB* 00 58 31.0619888328 +66 21 06.457611996 5.82 5.95 5.97     A0III 65 0
4 HD 6960 V* 01 11 25.5710702328 +64 12 09.640350540   5.488 5.548     B9.5V 58 0
5 HD 192987 Be* 20 16 28.1545554312 +37 03 23.026857768 5.96 6.355 6.448     B6III 72 0
6 Ass Cyg OB 9 As* 20 21 +39.9           ~ 136 0
7 HD 194279 s*b 20 23 18.1647782064 +40 45 32.598481500 8.01 8.04 7.01 5.98 5.17 B2Ia 200 0
8 HD 197018 a2* 20 39 33.31607 +40 34 46.7780           B8III 76 0

To bookmark this query, right click on this link: simbad:objects in 2007BaltA..16..311A and select 'bookmark this link' or equivalent in the popup menu