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Details for Revision 3
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Name
  CI Cam  
AAVSO UID
000-BBG-820 (5877 observations)  
Constellation
Camelopardalis Sequence
J2000.0
04 19 42.14 +55 59 57.7  (64.92558 +55.99936) Search nearby
B1950.0 04 15 39.27 +55 52 44.9
Galactic coord. 149.177 +4.133
Other names

(Internal only)
2MASS J04194212+5559577 AAVSO 0411+55 ALS 7930
CSI+55-04157 GSC 03723-00200 HBHA 5714-01
IRAS 04156+5552 KPD 0415+5552 LPH033
LS V +55 16 MHB 143 MWC 84
TYC 3723-200-1 XTE J0421+560  
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Variability type
HMXB/XN+LERI:
Spectral type B4III/V[e]+WD
Mag. range
9.5 - 11.9 V
Discoverer --
Epoch
--
Outburst --
Period 19.407 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Companion is a white dwarf in an elliptical orbit. There is also a third companion inducing brightenings. In 2018 it pulsates in a single mode with P= 0.4062 d. (2018ATel12097....1G).
2 Otero, Sebastian Alberto Orbital period given (variability 0.03 mag.). Also a pulsating variable with periods 0.41521 and 0.26647 d. (2009AstBu..64...50G). Also a FS CMa-type object (circumbinary envelope). Outburst in April, 1998.
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References
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1 V. P. Goranskij; E. A. Barsukova, 2018, ATel #12097 2018ATel12097....1G
2 Corral-Santana, J. M.; Casares, J.; Muņoz-Darias, T.; et al., 2016,
WATCHDOG: A Comprehensive All-sky Database of Galactic Black Hole X-ray
Binaries		 2016ApJS..222...15T
3 Barsukova, E. A., Goranskij, V. P., 2008, The nature of the rapid
variability of CI Cam (XTE J0421+ 560)		 2008ATel.1381....1B
4 Barsukova, E. A., Goranskij, V. P., 2008, The nature of the rapid
variability of CI Cam (XTE J0421+ 560)		 2008ATel.1381....1B
5 G.E. Sarty, L.L. Kiss, H.M. Johnston, R. Huziak, K. Wu, 2007, JAAVSO 35,
327		 2007JAVSO..35..327S
6 A.S.Miroshnichenko, Odessa Publ 7, part 1, 76, 1994. --
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Supporting Documents
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Campaigns/Programs
 Photometry of HMXBs
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
5 Otero, Sebastian Alberto 2018-10-11 02:36 UTC Type, spectral type and remark from 2018ATel12097....1G.
4 Otero, Sebastian Alberto 2018-02-28 02:55 UTC Type and spectral type from 2016ApJS..222...15T. UCAC4 position.
3 Otero, Sebastian Alberto 2012-07-27 03:55 UTC Spectral type and type from 2008ATel.1381....1B. Maximum magnitude from 2006MNRAS.369..355S. Minimum magnitude from AAVSO V-data.
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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