AAVSO Home



Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
  Y Per  
AAVSO UID
000-BBF-978 (38047 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 ASASSN-V J032742.38+441035.7
BD+43 726 HD 21280 HIP 16126
(Not logged in)  Add name
Variability type
M
Spectral type C4,3e(R4e)
Mag. range
8.1 - 11.3 V
Discoverer Arthur Williams (1901)
Epoch
02 Oct 1982 (HJD 2445245) Ephemeris
Outburst --
Period 248.6 d
Rise/eclipse dur. 48%  (119.328000000000 d)
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
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.
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
2 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.		 --
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location    Go   
Select a Location for more details.
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
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 03 27 42.39 +44 10 36.5 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
There are currently no supporting documents on file for this star. (Not logged in)  Add document
Campaigns/Programs
 Legacy LPV Program
 LPV Program
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Fernig, Leo 2022-02-18 22:10 UTC Discoverer updated from 1907AnHar..55....1C page 9
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.

Guidelines    FAQ    Manual    Forum    Variability Types    Passbands    Copyright    Acknowledgments    Privacy    Contact    Help us   
The International Variable Star Index
© 2005-2025 American Association of Variable Star Observers (AAVSO)
Version 1.1 [C]
172.30.4.159