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Details for Revision 3
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Name
  eta Cas  
AAVSO UID
000-BDK-280 (187 observations)  
Constellation
Cassiopeia Sequence
J2000.0
00 49 06.29 +57 48 54.7  (12.27621 +57.81519) Search nearby
B1950.0 00 46 10.77 +57 32 34.0
Galactic coord. 122.620 -5.055
Other names

(Internal only)
24 Cas 1RXS J004904.0+574917 ADS 671 A
BD+57 150 GJ 34.0 A HD 4614
HIP 3821 HR 219 IRC +60019
SAO 21732 TYC 3663-2669-1  
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Variability type
RS:
Spectral type G0V SB
Mag. range
3.58 - 3.63 Hp
Discoverer --
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto K7V companion (V= 7.51) 13" away. Combined brightness: 3.44 V. Duplicity-induced variability in HIPPARCOS.
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References
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1 European Space Agency, 1997, The Hipparcos and Tycho Catalogues, ESA
SP-1200		 1997yCat.1239....0E
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Supporting Documents
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Revision History
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4 Otero, Sebastian Alberto 2016-11-30 01:30 UTC Type and magnitude from HIPPARCOS and GCPD data.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2007-03-23 19:53 UTC Added spectral type from [1997yCat.1239....0E].
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.

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