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Details for Revision 4
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Name
  AB Aur  
AAVSO UID
000-BCT-861 (36425 observations)  
Constellation
Auriga Sequence
J2000.0
04 55 45.84 +30 33 04.3  (73.94100 +30.55119) Search nearby
B1950.0 04 52 34.35 +30 28 20.3
Galactic coord. 172.499 -7.981
Other names

(Internal only)
AAVSO 0449+30B BD+30 741 HBC 78
HD 31293 HIP 22910 HV 3554
MWC 93 RAFGL 5130 SAO 57506
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Variability type
TTS/ROT
Spectral type B9neqIV-V
Mag. range
6.9 - 8.4 V
Discoverer --
Epoch
--
Outburst --
Period 6.551 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team Common proper motion with AB Aur (P = 3'). Associated with a small bright nebula. OH emission. Spectrum description [G.H.Herbig, ApJ Suppl 4, N43, 337, 1960.].
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References
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1 Toone, J., 2026, AB Aurigae – The Deep Fades of 2025 --
2 A.M. Cody, J. Tayar, L.A. Hillenbrand, J.M. Matthews, T. Kallinger, 2013,
arXiv:1302.0018 [astro-ph.SR]		 2013arXiv1302.0018C
3 Shenavrin, V. I., et al., 2012, Photometric activity of UX Ori stars and
related objects in the near infrared and visual. BF Ori, CQ Tau, WW Vul,
and SV Cep		 2012ARep...56..379S
4 Herbst, W.; Shevchenko, V. S., 1999, A Photometric Catalog of Herbig AE/BE
Stars and Discussion of the Nature and Cause of the Variations of UX
Orionis Stars		 1999AJ....118.1043H
5 M.Beyer, AN 263, 33, 1937. 1937AN....263...33B
6 M.Beyer, AN 263, 33, 1937. 1937AN....263...33B
7 Sternberg, B., 1927, Messungen von veranderlichen Sternen in der Jahren
1925-1926		 1927PAICU...7D...1S
8 Hartwig, E., 1922, Benennung von neu entdeckten veraenderlichen Sternen 1922AN....215..185H
External Links
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Supporting Documents
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Revision History
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8 Otero, Sebastian Alberto 2026-03-02 22:46 UTC Minimum magnitude from James Foster data submitted to the AAVSO and BAA-VSS Circular #207.
7 Fernig, Leo 2023-03-29 20:25 UTC Discoverer updated from 1922AN....215..185H page 189.
6 Billiaert, Bruno 2015-05-27 09:38 UTC Reference added.
5 Otero, Sebastian Alberto 2014-07-16 04:46 UTC Type from 1999AJ....118.1043H.
4 Billiaert, Bruno 2014-07-06 22:40 UTC added reference
3 Admin, VSX 2013-02-07 01:54 UTC Update from [2013arXiv1302.0018C].
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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