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| Query : 1998A&A...329..579F |
1998A&A...329..579F - Astronomy and Astrophysics, volume 329, 579-582 (1998/1-2)
uvby photometry of θ Coronae Borealis during 1994 and 1995.
FABREGAT J. and ADELMAN S.J.
Abstract (from CDS):
We present differential uvby photometry of θ CrB obtained in 1994 and 1995, complemented by Balmer line spectroscopy. This star has been constant during this period, showing no short term periodic variability with an amplitude greater than 0.005mag., nor long term variations greater than 0.01mag. The lack of variability is associated with an inactive phase of the Be star, in which no emision features are present in the spectra. The only remarkable event observed was a fading episode on JD 2449779, with an amplitude of about 0.02 magnitudes in all bandpasses and duration of 0.2-0.3 days.
Abstract Copyright: ∼
Journal keyword(s): stars: emission-line, Be - stars: individual: θ CrB
VizieR on-line data: <Available at CDS (J/A+A/329/579): table2aa.dat table2ab.dat table2b.dat>
Simbad objects: 9
| Number of rows : 9 |
| 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 | LS I +61 303 | HXB | 02 40 31.6644419688 | +61 13 45.593918580 | 11.27 | 11.61 | 10.75 | 10.19 | 9.55 | B0Ve | 853 | 2 |
| 2 | V* X Per | HXB | 03 55 23.0777456088 | +31 02 45.039836148 | 6.090 | 6.840 | 6.720 | O9.5III | 978 | 0 | ||
| 3 | * lam Eri | Be* | 05 09 08.7840557047 | -08 45 14.701594805 | 3.17 | 4.07 | 4.27 | 4.35 | 4.55 | B2III(e)p | 305 | 1 |
| 4 | * kap CMa | Be* | 06 49 50.4591124672 | -32 30 30.523820933 | 2.73 | 3.68 | 3.89 | 3.91 | 4.05 | B1.5Ve | 286 | 0 |
| 5 | * mu. Cen | Be* | 13 49 36.9886872492 | -42 28 25.440271450 | 2.37 | 3.27 | 3.43 | 3.41 | 3.50 | B2Vnpe | 434 | 0 |
| 6 | * chi Boo | PM* | 15 14 29.1587474040 | +29 09 51.466943700 | 5.326 | 5.272 | A2V | 88 | 0 | |||
| 7 | * 50 Boo | PM* | 15 21 48.5751139296 | +32 56 01.298173056 | 5.312 | 5.372 | B9Vn | 78 | 0 | |||
| 8 | * tet CrB | Be* | 15 32 55.78214 | +31 21 32.8762 | 3.45 | 4.00 | 4.13 | 4.18 | 4.29 | B6Vnne | 290 | 0 |
| 9 | * eps Cap | Be* | 21 37 04.8311169408 | -19 27 57.640399810 | 3.69 | 4.35 | 4.55 | 4.60 | 4.74 | B3V | 255 | 0 |
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