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  iot Ori  
Orion Sequence
05 35 25.98 -05 54 35.6  (83.85825 -5.90989) Search nearby
B1950.0 05 32 59.15 -05 56 28.1
Galactic coord. 209.522 -19.583
Other names

(Internal only)
1RXS J053526.3-055436 ALS 14790 BD-06 1241
GSC 04778-01401 HD 37043 HIP 26241
HR 1899 Hatysa IRAS 05330-0556
PPM 188225 SAO 132323 TYC 4778-1401-1
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Variability type
Spectral type O9III+B0.8IV/V
Mag. range
2.76 - 2.79 V
Discoverer S. V. Marchenko et al.
03 Nov 1998 (HJD 2451121.437) Ephemeris
Outburst --
Period 29.13376 d
Rise/eclipse dur. --
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Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Pablo, H.; Richardson, N. D.; Fuller, J.; et al., 2017, The most massive
heartbeat: an in-depth analysis of ι Orionis
2 Marchenko, S. V.; Rauw, G.; Antokhina, E. A.; et al., 2000, Coordinated
monitoring of the eccentric O-star binary Iota Orionis: optical
spectroscopy and photometry
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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 = 3.49H = 3.65K = 3.75J - K = -0.26
AllWISE W1 = 3.45W2 = 2.91W3 = 3.54W4 = 3.48W1 - W2 = 0.54W3 - W4 = 0.05
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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Revision History
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2 Otero, Sebastian Alberto 2017-09-28 18:33 UTC Other names added.
1 Otero, Sebastian Alberto 2017-09-28 18:31 UTC Period from 2000MNRAS.317..333M. Type and spectral type from 2017MNRAS.467.2494P. Epoch of minimum and amplitude derived from 2017MNRAS.467.2494P phase plot. Magnitude from GCPD data.