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Latest Details
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Name
  SW Cep  
AAVSO UID
000-BCV-369 (372 observations)  
Constellation
Cepheus Sequence
J2000.0
21 25 45.92 +62 34 26.4  (321.44133 +62.57400) Search nearby
B1950.0 21 24 32.40 +62 21 24.4
Proper motion
RA: -6.564 +/- 0.537 mas/yDec: -0.580 +/- 0.552 mas/ySource: Gaia DR1
Galactic coord. 101.578 +8.574
Other names

(Internal only)
AAVSO 2123+62 ASASSN-V J212545.71+623425.1 BD+61 2134
DO 39588 HD 204409 IRAS 21245+6221
IRC +60317 RAFGL 2765 SAO 19401
TIC 427151794    
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Variability type
SRC
Spectral type M3.5Ia-Iab
Mag. range
8.2 - 9.7 V
Discoverer Thomas Espin
Epoch
--
Outburst --
Period 70 d
Rise/eclipse dur. --
Remarks
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 C.Payne-Gaposchkin, HA 118, N19, 1952. 1952AnHar.118..147P
2 Z.Kopal, V.Vand, Atlas d'etoiles variables 3, Serie 1, 1933. --
3 Dunér, N. C.; Hartwig, E.; Muller, G., 1912, Benennung von neu entdeckten
veränderlichen Sternen
1912AN....191..341.
External Links
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Location    Go   
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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 = 3.01H = 2.05K = 1.59J - K = 1.42
AllWISE W3 = -0.66W4 = -2.03W3 - W4 = 1.37
APASS-DR9 B = 11.28V = 9.11g' = 10.35r' = 8.12i' = 6.38B - V = 2.17
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 21 25 45.92 +62 34 26.4 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Campaigns/Programs
 SNEWS Campaign
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Fernig, Leo 2022-11-15 22:35 UTC Discoverer updated from 1912AN....191..341. page 356.
3 Otero, Sebastian Alberto 2020-01-30 23:18 UTC Range from AAVSO 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.