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Latest Details
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Name
  R Hor  
AAVSO UID
000-BBF-602 (14614 observations)  
Constellation
Horologium Sequence
J2000.0
02 53 52.77 -49 53 22.7  (43.46988 -49.88964) Search nearby
B1950.0 02 52 12.93 -50 05 34.3
Proper motion
RA: 130.35 mas/yDec: 34.22 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 265.451 -57.376
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 0250-50 ASAS J025353-4953.4 CD-50 860
HD 18242 HIP 13502 HR 868
HV 17    
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Variability type
M
Spectral type M5e-M8eII-III
Mag. range
4.7 - 14.3 V
Discoverer Williamina Fleming (1892)
Epoch
28 Jan 2010 (HJD 2455225.0) Ephemeris
Outburst --
Period 404.8 d
Rise/eclipse dur. 40%  (162 d)
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 GCVS Team OH, H2O, SiO maser. P var. Max = 2428868 + 401.5d*E (JD2412800 - 28900); since JD2428900 - see Table.
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
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
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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 = 0.72H = -0.11K = -0.61J - K = 1.33
AllWISE W4 = -3.04
APASS-DR9 B = 13.46V = 11.87g' = 12.88r' = 10.09B - V = 1.60
GALEX-DR5 FUV = 19.86NUV = 19.16FUV - NUV = 0.70
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 02 53 52.77 -49 53 22.7 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Campaigns/Programs
 LPV Program
 Legacy LPV South
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Otero, Sebastian Alberto 2024-01-19 01:55 UTC Period and epoch from AAVSO data.
3 Fernig, Leo 2022-02-18 22:10 UTC Discoverer updated from 1907AnHar..55....1C page 8
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.