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Name
alf Ori
AAVSO UID
Constellation
J2000.0
B1950.0
05 52 27.80 +07 23 57.8
Proper motion
Galactic coord.
199.787 -8.959
Other names(Internal only)
58 Ori
AAVSO 0549+07
ADS 4506 A
BD+07 1055
Betelgeuse
GALEX J055510.3+072426
HD 39801
HIP 27989
HR 2061
IRAS 05524+0723
IRC +10100
RAFGL 836
SAO 113271
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Variability type
SRC
Spectral type
M1-M3.5Iabe
Mag. range
0.0 - 1.6 V
Discoverer
John Frederick William Herschel (1836)
Epoch
Outburst
--
Period
423 d
Rise/eclipse dur.
--
Remarks
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1
Schmeer, Patrick
Brightness variations first noticed by J. Herschel in 1836 and reported at the 10 January 1840 meeting of the Royal Astronomical Society (1999JAVSO..27..171W ).
2
Billiaert, Bruno
Secondary period of ~2100 d. (2016arXiv160205108M )
3
GCVS Team
VB A (B 14.5m, 39.8", 110deg). Min = 2410600 + 2070d*E (1840 - 1929) [B.W.Kukarkin, Perem. Zvezdy 3, 67, 1931.]. Since 1929 - see Table. The main variation is superimposed by the waves with P = 200 - 400d. Dust-gaseous shell (r = 50") [R.K.Honeycutt, A.P.Bernat, J.E. Kephart, C.E.Gow, M.T.Sandford II, D.L.Lambert, ApJ 239, 565, 1980. ].
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1
E. F. Guinan; R. J. Wasatonic, 2020, ATel #13439
2020ATel13439....1G
2
Kafka, S., 2020, Observations from the AAVSO International Database
--
3
E. F. Guinan; R. J. Wasatonic; T. J. Calderwood, 2019, ATel #13365
2019ATel13365....1G
4
Montargès, M.; et al., 2016, The close circumstellar environment of
2016arXiv160205108M
5
Wilk, S. R., 1999, Further Mythological Evidence for Ancient Knowledge of
1999JAVSO..27..171W
6
R.Stothers, K.C.Leung, AsAp 10, 290, 1971.
1971A&A....10..290S
7
W. Ceraski, 1908, Nouvelles de la Science, Variétés
1908BSAFR..22..241C
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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 = -2.99 H = -4.01 K = -4.38 J - K = 1.39
AllWISE
W1 = -1.37 W4 = -4.98
Images
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Supporting Documents
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Campaigns/Programs
Legacy LPV Program
LPV Program
SNEWS Campaign
Revision History
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