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Name
  XX Cam  
AAVSO UID
000-BBG-625 (54395 observations)  
Constellation
Camelopardalis Sequence
J2000.0
04 08 38.75 +53 21 39.3  (62.16146 +53.36092) Search nearby
B1950.0 04 04 46.12 +53 13 43.9
Proper motion
RA: 1.794 +/- 0.036 mas/yDec: -2.664 +/- 0.026 mas/ySource: Gaia DR1
Galactic coord. 149.838 +1.121
Other names

(Internal only)
2MASS J04083875+5321394 AAVSO 0400+53 BD+52 771
HD 25878 HIP 19340 SAO 24431
WISE J040838.75+532139.4    
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Variability type
RCB:
Spectral type G1I(C0-2,0)
Mag. range
8.09 - 9.8 B
Discoverer --
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 GCVS Team During 1898 - 1980 a single symmetric Min JD2429632 was observed which lasted for 94d. Brightness fluctuations up to 0.2m during several dozens of minutes [A.G.Totochava, Abastumani Byull. 48, 47, 1977.]. Hydrogen deficiency and carbon excess in the spectrum. Some authors express doubt about the star's being an RCB variable; in particular, they note the lack of IR excess [V.I.Shenavrin, Astron. Zh. 56, 1228, 1979., N.K.Rao, N.M.Ashok, P.V.Kulkarni, JAPAS 1, N1, 71, 1980.].
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References
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1 Chang Yuin, ApJ 107, 413, 1948. 1948ApJ...107..413Y
2 B.E.Zhilyaev, M.Ya.Orlov, A.F. Pugach, M.G.Rodriguez, A.G.Totochava, "Stars
of R CrB type" Naukova Dumka, 1978.
--
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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 = 5.81H = 5.63K = 5.51J - K = 0.31
AllWISE W1 = 5.41W2 = 4.95W3 = 3.45W4 = 2.84W1 - W2 = 0.46W3 - W4 = 0.61
SDSS-DR12 u = 9.49g = 8.81r = 8.71i = 8.57z = 7.03u - g = 0.68r - i = 0.14
Images
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Supporting Documents
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Revision History
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2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.