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Name
  Y Per  
AAVSO UID
000-BBF-978 (34779 observations)  
Constellation
Perseus Sequence
J2000.0
03 27 42.39 +44 10 36.5  (51.92662 +44.17681) Search nearby
B1950.0 03 24 18.04 +44 00 12.3
Proper motion
RA: -6.391 +/- 0.070 mas/yDec: 5.755 +/- 0.056 mas/ySource: Gaia DR1
Galactic coord. 150.275 -10.242
Other names

(Internal only)
AAVSO 0320+43 AN 68.1901 BD+43 726
HD 21280 HIP 16126  
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Variability type
M
Spectral type C4,3e(R4e)
Mag. range
8.1 - 11.3 V
Discoverer --
Epoch
02 Oct 1982 (HJD 2445245) Ephemeris
Outburst --
Period 248.6 d
Rise/eclipse dur. 48%
Remarks
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1 GCVS Team P var. Max = 2414990 + 254.74d*E (JD2415000 - 18000); Max = 2418049 + 246.25d*E (JD2418000 - 22000); Max = 2422242 + 253.62d*E (JD2422000 - 41000); since JD2441000 - see Table.
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References
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1 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
External Links
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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 = 5.15H = 4.29K = 3.68J - K = 1.48
AllWISE W2 = 2.64W3 = 2.59W4 = 2.06W3 - W4 = 0.53
APASS-DR9 B = 11.89g' = 10.48
SDSS-DR12 u = 14.98g = 14.12r = 12.10i = 11.55z = 7.43u - g = 0.87r - i = 0.55
Images
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Supporting Documents
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Campaigns/Programs
 Legacy LPV Program
 LPV Program
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
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.