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Name
  GP Cep  
AAVSO UID
000-BDL-295 (108 observations)  
Constellation
Cepheus Sequence
J2000.0
22 18 45.61 +56 07 33.9  (334.69004 +56.12608) Search nearby
B1950.0 22 16 54.62 +55 52 29.7
Proper motion
RA: -3.545 +/- 0.082 mas/yDec: -2.742 +/- 0.078 mas/ySource: Gaia DR1
Galactic coord. 102.783 -0.653
Other names

(Internal only)
ASASSN-V J221845.51+560734.6 BD+55 2721 HD 211853
HIP 110154 IOMC 3986000064 SAO 34301
WR 153    
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Variability type
E/WR+E:
Spectral type WN6+O8-B0III:+O+O
Mag. range
8.96 - 9.07 V
Discoverer --
Epoch
15 Jun 1944 (HJD 2431256.602) Ephemeris
Outburst --
Period 6.6883 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 GCVS Team In the region of the HII zone S 132. Quadruple system, consisting of a WN6 + O8-B0III: eclipsing pair (P = 6.6883d) physically associated with an O + O pair (P = 3.4698d); the latter pair may be also an eclipsing or ellipsoidal variable [Ph.Massey, ApJ 244, 157, 1981.].
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
2 J.S. Nichols et al., 2010, ApJS 188, 473 (online data) 2010ApJS..188..473N
3 C. Koen, L. Eyer, 2002, MNRAS 331, 45 2002MNRAS.331...45K
4 A.M.Cherepashchuk, Astron. Zh. 52, 255, 1975. 1975AZh....52..255C
5 I.Mashnauskas, Vilnyus Byull. N12, 1964. 1964VilOB..12....1M
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 = 7.78H = 7.60K = 7.41J - K = 0.37
AllWISE W1 = 7.01W2 = 6.80W3 = 6.09W4 = 4.18W1 - W2 = 0.21W3 - W4 = 1.91
APASS-DR9 B = 9.45V = 8.94g' = 9.17r' = 8.80i' = 8.70B - V = 0.51
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 22 18 45.61 +56 07 33.9 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
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.