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Latest Details
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Name
  alf Cru  
AAVSO UID
000-BPW-488 (No observations)  
Constellation
Crux Sequence
J2000.0
12 26 35.90 -63 05 56.7  (186.64958 -63.09908) Search nearby
B1950.0 12 23 47.81 -62 49 20.5
Galactic coord. 300.127 -0.363
Other names

(Internal only)
1RXS J122634.8-630554 2RXS J122635.3-630551 ALS 14968
ALS 14969 AX J1226.6-6305 Acrux
CD-62 652 CPD-62 2745 HD 108248
HD 108249 HIP 60718 HR 4730
HR 4731 IRAS 12237-6249 LLNS 8229
PPM 359410 SBC9 725 TIC 450568754
TYC 8979-3464-1 TYC 8979-3465-1 WDS J12266-6306A
WDS J12266-6306AB WDS J12266-6306B alf Cru AB
alf01 Cru alf02 Cru alp Cru
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Variability type
BCEP+BCEP
Spectral type (B0.5IV+B0V)+B1V
Mag. range
0.775 V (0.006)TESS
Discoverer A. N. Sharma et al. (TESS)
Epoch
11 May 2021 (HJD 2459346.014) Ephemeris
Outburst --
Period 0.32822 d  (7.877 h)
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Also BCEP variations with P= 0.105597 d. Quintuple system. A has V= 1.35 and is a spectroscopic binary (AaAb) with P= 75.769 d. B has V= 1.74. AB sep. 5". It is uncertain which components show the recorded variability. Combined magnitude and amplitude of AB given. Alf Cru C (NSV 19389, V= 4.85, AC sep. 90") is also a spectroscopic binary.
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References
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1 Fetherolf, T.; et al., 2023, Variability Catalog of Stars Observed during
the TESS Prime Mission		 2023ApJS..268....4F
2 Sharma, A. N.; et al., 2022, Pulsating B stars in the Scorpius-Centaurus
Association with TESS		 2022MNRAS.515..828S
3 Ricker, G. R.; et al., 2014, Transiting Exoplanet Survey Satellite (TESS) 2014SPIE.9143E..20R
External Links
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Images
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Supporting Documents
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2 Phase plot P= 0.106 d. Otero, Sebastian Alberto 2024-05-13 21:05 UTC
1 Phase plot P= 0.33 d. Otero, Sebastian Alberto 2024-05-13 21:01 UTC Phase plot with TESS-SPOC data.
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Revision History
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2 Otero, Sebastian Alberto 2024-05-14 15:14 UTC Discoverers corrected.
1 Otero, Sebastian Alberto 2024-05-13 22:46 UTC Type, periods, epoch and amplitude from TESS data. Mean magnitude derived from GCPD data. Hipparcos position.

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