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| Query : 2004MNRAS.351..823A |
2004MNRAS.351..823A - Mon. Not. R. Astron. Soc., 351, 823-825 (2004/July-1)
The extraordinary photometric changes of the CP2 star HR 7224.
ADELMAN S.J.
Abstract (from CDS):
An extraordinary change in the optical region photometric variations of the CP2 star HR 7224 is found between observations made during 2003 and those made before 1996. The amplitude of variability has increased from of order 0.04 mag to 0.21 mag. The main period of variability now appears to be of the order of 101 d rather than 1.123 d as previously found.
Abstract Copyright: 2004 RAS
Journal keyword(s): stars: chemically peculiar - stars: individual: HR 7224
Simbad objects: 4
| Number of rows : 4 |
| 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 | * 56 Ari | a2* | 03 12 14.2461137352 | +27 15 25.085668788 | 5.22 | 5.64 | 5.76 | B6IV-V | 264 | 0 | ||
| 2 | V* EE Dra | a2* | 18 58 52.6267962600 | +69 31 52.648832568 | 6.353 | 6.506 | B9III | 97 | 1 | |||
| 3 | * 55 Dra | * | 19 09 45.8058914544 | +65 58 42.651598836 | 6.250 | 6.260 | 6.260 | 6.23 | A0V | 44 | 0 | |
| 4 | * pi. Dra | * | 19 20 40.0914694319 | +65 42 52.314729157 | 4.67 | 4.61 | 4.59 | 4.55 | 4.58 | A0III | 100 | 0 |
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