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Name
  tau 1 Ari  
AAVSO UID
000-BBF-894 (No observations)  
Constellation
Aries Sequence
J2000.0
03 21 13.62 +21 08 49.4  (50.30675 +21.14706) Search nearby
B1950.0 03 18 20.13 +20 58 05.5
Proper motion
RA: 20.98 +/- 0.85 mas/yDec: -21.80 +/- 0.73 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 163.657 -29.636
Other names

(Internal only)
61 Ari tau Ari 1 ALS 17277
BD+20 543 GSC 01245-01184 HD 20756
HIP 15627 HR 1005 PPM 92422
SAO 75886 SRS 31094 TIC 5612096
TYC 1245-1184-1 WDS J03212+2109A tau Ari
tau01 Ari    
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Variability type
SPB
Spectral type B5IV
Mag. range
5.25 - 5.33 V
Discoverer Hipparcos
Epoch
--
Outburst --
Period 1.4735 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Combined magnitude of a 5.4 Vmag. primary and a 8.1 Vmag. visual companion 0.8" away.
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References
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1 Shi, X.-d.; et al., 2023, Observational Properties of 155 O- and B-type
Massive Pulsating Stars
2023ApJS..265...33S
2 European Space Agency, 1997, The Hipparcos and Tycho Catalogues, ESA
SP-1200
1997yCat.1239....0E
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 5.39H = 5.44K = 5.44J - K = -0.05
AllWISE W1 = 5.47W2 = 5.38W3 = 5.57W4 = 5.51W1 - W2 = 0.09W3 - W4 = 0.06
Images
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Supporting Documents
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Revision History
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4 Otero, Sebastian Alberto 2023-08-25 15:30 UTC Type and period from 2023ApJS..265...33S. Range derived from Hipparcos and GCPD data. Gaia DR3 position.
3 Admin, VSX 2010-01-05 04:43 UTC Update from the GCVS version of November 2009.
2 Admin, VSX 2007-03-23 19:52 UTC Added period, epoch and spectral type from [1997yCat.1239....0E].
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.