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Name
  RX Cas  
AAVSO UID
000-BDJ-567 (418 observations)  
Constellation
Cassiopeia Sequence
J2000.0
03 07 45.75 +67 34 38.6  (46.94062 +67.57739) Search nearby
B1950.0 03 03 15.39 +67 23 07.2
Proper motion
RA: -2.985 +/- 0.091 mas/yDec: -2.209 +/- 0.113 mas/ySource: Gaia DR1
Galactic coord. 135.399 +8.068
Other names

(Internal only)
AN 6.1904 BD+67 244 HIP 14542
MWC 722 SAO 12609  
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Variability type
DPV:/EB/GS
Spectral type K1III+A5eIII
Mag. range
8.64 - 9.49 V
Discoverer --
Epoch
16 May 1903 (HJD 2416250.91) Ephemeris
Outburst --
Period 32.3257 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Long period varies (Mennickent, 2017).
2 GCVS Team Unigue rapidly evolving eclipsing system. 9.12<=Min II<=9.49; Min II - Min I = 0.5070P. P var. Nonlinear term: +1.017d*10**(-5)*E**2. Observations may be represented also by three systems of elements: Min I = 2416250.889 + 32.31481d*E (0 <= E <= 286, JD2416250 - 25482); Min I = 2416248.835 + 32.32145d*E (331 <= E <= 554, JD2426940 - 34155); Min I = 2416244.990 + 32.32765d*E (734 <= E <= 876, JD2439970 - 44570). Brightness of the system out of eclipses periodically varies within 8.6m - 9.0m with elements Max = 2416198 + 516.06d*E [P.Kalv, Tartu teated N58, 3, 1979.]. Max - Min = 233d = 0.45P [D.Ya.Martynov, Ehngel'gard Byull. N27, 1950.]. Strong emissions of H, NV, CIV, SIIV, FeIII. Powerful gaseous stream and accretion phenomena are possible.
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References
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1 Mennickent, R. E., 2017, Long photometric cycles in hot Algols (Invited
review)
--
2 Bob Nelson's O-C files, 2016 --
3 S.Kriz, J.Arsenijevic, J.Grygar, P.Harmanec, J.Horn, P.Koubsky,
K.Pavlovski, J.Zverko, F.Zdarsky, BAC 31, N5, 284, 1980.
1980BAICz..31..284K
4 V.P.Zessewitsch, Variable Stars and Methods of Their Studies, (in russian)
M., 1970.
--
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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 = 6.24H = 5.62K = 5.43J - K = 0.81
AllWISE W1 = 5.43W2 = 5.16W3 = 5.04W4 = 4.69W1 - W2 = 0.27W3 - W4 = 0.35
APASS-DR9 B = 10.65
GALEX-DR5 FUV = 14.81NUV = 13.90FUV - NUV = 0.90
Images
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2019-06-07 23:13 UTC Type from Mennickent (2017). Period from AAVSO data.
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.