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Latest Details
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Name
  V1803 Cyg  
AAVSO UID
000-BCN-244 (No observations)  
Constellation
Cygnus Sequence
J2000.0
21 06 53.94 +38 44 57.9  (316.72475 +38.74942) Search nearby
B1950.0 21 04 39.19 +38 30 07.7
Proper motion
RA: 4168.31 mas/yDec: 3269.20 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 82.320 -5.818
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
61 Cyg A ADS 14636 A BD+38 4343
GJ 820.0 A HD 201091 HIP 104214
HR 8085 IRC +40469 NSV 13543
SAO 70919 X 21037+385  
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Variability type
BY
Spectral type K5V
Mag. range
5.19 - 5.27 V
Discoverer --
Epoch
--
Outburst --
Period 35: d
Rise/eclipse dur. --
Remarks
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1 Hinzel, David H. Companion star K7 dwarf 61 Cyg B. Cyclic chromospheric activity ~ 7.3 years. Large scale surface magnetic field flips polarity.
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References
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1 Boro Saikia, S.; et al., 2016, A Solar-like Magnetic Cycle on the Mature
K-dwarf 61 Cyg A (HD 201091)		 2016A&A...594A..29B
2 J.D.Dorren, E.F.Guinan, SAO Special Report No.392,Vol.II,49,1982. 1982SAOSR.392B..49D
External Links
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Location    Go   
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Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 21 06 53.94 +38 44 57.9 (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.
3 Hinzel, David H. 2016-12-15 02:18 UTC Spectral type and period from 2016A&A...594A..29B.
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.

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