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Name
  R Leo  
AAVSO UID
000-BBQ-798 (99334 observations)  
Constellation
Leo Sequence
J2000.0
09 47 33.49 +11 25 43.7  (146.88954 +11.42881) Search nearby
B1950.0 09 44 52.26 +11 39 42.0
Proper motion
RA: -5.48 +/- 2.32 mas/yDec: -40.77 +/- 1.01 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 223.721 +44.160
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 0942+11 ASAS J094733+1125.8 BD+12 2096
HD 84748 HIP 48036 HR 3882
IRC +10215 RAFGL 1380 SAO 98769
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Variability type
M
Spectral type M6e-M8IIIe-M9.5e
Mag. range
4.4 - 11.3 V
Discoverer Koch (1782)
Epoch
17 Oct 1979 (HJD 2444164.00) Ephemeris
Outburst --
Period 309.95 d
Rise/eclipse dur. 43%
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 = 2385112 + 312.43d*E (JD2385100 - 2402500); Max = 2402929 + 314.33d*E (JD2402500 - 11500); Max = 2411416 + 308.93d*E (JD2411500 - 16500); Max = 2416984 + 317.84d*E (JD2416500 - 22500); Max = 2423328 + 312.75d*E (JD2422500 - 27000); Max = 2427081 + 307.40d*E (JD2427000 - 30000); Max = 2437337 + 312.13d*E (JD2430000 - 37500); since JD2437500 - see Table. SiO, H2O, OH maser.
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References
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1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 W. Ceraski, 1908, Nouvelles de la Science, Variétés 1908BSAFR..22..241C
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
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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 = -0.72H = -1.75K = -2.29J - K = 1.57
AllWISE W4 = -3.64
APASS-DR9
Images
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Supporting Documents
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Campaigns/Programs
 Binocular program
 Legacy LPV Program
 LPV Program
 LPV Humps
Revision History
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3 Billiaert, Bruno 2015-12-29 18:45 UTC discoverer added (1908BSAFR..22..241C)
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 Preserved original object data.