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Name
  AA Tau  
AAVSO UID
000-BFM-213 (1921 observations)  
Constellation
Taurus Sequence
J2000.0
04 34 55.42 +24 28 53.0  (68.73092 +24.48139) Search nearby
B1950.0 04 31 53.47 +24 22 44.0
Proper motion
RA: 4.3 +/- 2.7 mas/yDec: -15.3 +/- 3.2 mas/ySource: UCAC4
Galactic coord. 174.321 -15.395
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J04345542+2428531 AN 196.1930 ASAS J043455+2428.8
ASASSN-V J043455.38+242852.3 GSC 01833-00851 Gaia20awa
HBC 63 IRAS 04318+2422 MHA 259-17
WDS J04349+2429A    
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Variability type
CTTS/ROT/DIP
Spectral type K5e
Mag. range
12.4 - 16.5 V
Discoverer --
Epoch
01 Jan 2003 (HJD 2452641.00) Ephemeris
Outburst --
Period 8.19 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team Cyclic light variation with P = 4.5d and 2d [I.A.Klyus, I.I.Lobuzov, Perem. Zvezdy 20, 13, 1975.] and also 8.2d [A.E.Rydgren, F.J.Vrba, P.F.Chugainov, N.I.Shakhovskaya, BAAS 17, 556, 1985.] is possible.
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References
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1 Gaia Alerts, 2020 (online data) --
2 Bodman, E. H. L.; Quillen, A. C.; Ansdell, M.; et al., 2016, Dippers and
Dusty Disks Edges: A Unified Model		 2016arXiv160503985B
3 S.A. Artemenko, K.N. Grankin, P.P. Petrov, 2013, arXiv:1301.2493
[astro-ph.SR]		 2013arXiv1301.2493A
4 Cox, A.; Grady, C.; Hammel, H. B.; et al., 2013, Imaging the Disk and Jet
of the Classical T Tauri Star AA Tau		 2013AAS...22114402C
5 Bouvier, J.; Grankin, K.; Ellerbroek, L. E.; et al., 2013, AA Tauri's
sudden and long-lasting deepening: enhanced extinction by its circumstellar
disk		 2013A&A...557A..77B
6 J.-F. Donati et al., 2010, arXiv:1007.4407v1 [astro-ph.SR] 2010arXiv1007.4407D
7 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
8 R.Mundt, F.M.Walter, E.D.Feigelson, SON, U.Finkenzeller, G.H.Herbig,
A.P.Odell, ApJ 269, 229, 1983.		 1983ApJ...269..229M
9 V.P.Zessewitsch, B.A.Dragomiretskaya, Stars of RW Aurigae Type (in
russian), 1973.		 --
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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 = 9.43H = 8.55K = 8.05J - K = 1.39
AllWISE W1 = 7.45W2 = 6.76W3 = 4.64W4 = 2.50W1 - W2 = 0.69W3 - W4 = 2.14
APASS-DR9 B = 16.10V = 14.31g' = 15.19r' = 13.56i' = 12.73B - V = 1.79
SDSS-DR12 u = 15.86g = 13.94r = 12.21i = 11.49z = 11.31u - g = 1.92r - i = 0.71
Images
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Supporting Documents
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Campaigns/Programs
 YSO Program
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
9 Otero, Sebastian Alberto 2022-12-12 18:16 UTC Type from 2013AAS...22114402C.
8 Otero, Sebastian Alberto 2020-02-20 05:00 UTC Gaia DR2 position.
7 Otero, Sebastian Alberto 2018-06-11 00:48 UTC Primary record creation.
6 Otero, Sebastian Alberto 2016-10-28 22:10 UTC Type and spectral type from 2016arXiv160503985B.
5 Otero, Sebastian Alberto 2016-08-02 00:53 UTC Type, spectral type and range from 2013A&A...557A..77B.
4 Admin, VSX 2013-01-15 04:17 UTC Update from [2013arXiv1301.2493A].
3 Admin, VSX 2010-08-04 01:36 UTC Update from [2010arXiv1007.4407D].
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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