AAVSO Home



Current Time: 01 Apr 2025 18:09:34 UTC
Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Details for Revision 1
Log in to retrieve additional aliases from SIMBAD.
Name
  S UMi  
AAVSO UID
000-BBW-210 (48952 observations)  
Constellation
Ursa Minor Sequence
J2000.0
15 29 34.60 +78 38 00.0  (232.39417 +78.63333) Search nearby
B1950.0 15 31 27.05 +78 48 08.4
Galactic coord. 114.055 +35.614
Other names

(Internal only)
AAVSO 1533+78A BD+79 467 HD 139492
HIP 75847 HV 54 IRC +80030
RAFGL 1780    
(Not logged in)  Add name
Variability type
M
Spectral type M6e-M9e
Mag. range
7.5 - <13.2 V
Discoverer --
Epoch
18 Aug 1984 (HJD 2445931) Ephemeris
Outburst --
Period 331 d
Rise/eclipse dur. 50%  (166 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 = 2422604 + 321.9d*E (JD2413000 - 23000); Max = 2432200 + 331.5d*E (JD2423000 - 32800); Max = 2436080 + 322.5d*E (JD2433000 - 37000); Max = 2439011 + 326.5d*E (JD2437000 - 41500); since JD2441500 - 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 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
2 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
3 T. Karlsson, Maxima of Mira stars --
4 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.
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 2022-04-22 13:33 UTC Discoverer updated from 1907AnHar..55....1C page 18
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.