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Name
  R CrB  
AAVSO UID
000-BBW-575 (334829 observations)  
Constellation
Corona Borealis Sequence
J2000.0
15 48 34.42 +28 09 24.3  (237.14342 +28.15675) Search nearby
B1950.0 15 46 30.75 +28 18 32.4
Proper motion
RA: -2.375 +/- 0.016 mas/yDec: -11.646 +/- 0.020 mas/ySource: Gaia DR1
Galactic coord. 45.050 +50.978
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J15483440+2809242 AAVSO 1544+28A ASAS J154834+2809.4
ATO J237.1433+28.1566 ATO J237.1433+28.1567 BD+28 2477
CDS 886 GC 21257 GCRV 9116
GSC 02039-01605 Gaia DR3 1224565824009709312 HD 141527
HIP 77442 HR 5880 IRAS 15465+2818
PPM 104338 RAFGL 4219 SAO 84015
TIC 284759010 TYC 2039-1605-1 WISE J154834.44+280924.5
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Variability type
RCB
Spectral type C0,0(F8pep)
Mag. range
5.61 - 15.1 V
Discoverer Pigott (1795)
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Faintest state of deep minimum during March/April 2009.
2 GCVS Team IR excess.
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References
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1 Tisserand, P.; Clayton, G. C.; Bessell, M. S.; et al., 2020, A plethora of
new R Coronae Borealis stars discovered from a dedicated spectroscopic
follow-up survey
2020A&A...635A..14T
2 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
3 W. Ceraski, 1908, Nouvelles de la Science, Variétés 1908BSAFR..22..241C
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 = 5.36H = 5.09K = 4.56J - K = 0.80
AllWISE W1 = 3.53W3 = -0.28W4 = -0.82W3 - W4 = 0.54
APASS-DR9 B = 13.70V = 12.11g' = 12.95r' = 11.46i' = 10.59B - V = 1.59
SDSS-DR12 u = 8.76g = 7.22r = 6.39i = 6.46z = 7.73u - g = 1.54r - i = -0.07
Images
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Supporting Documents
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Campaigns/Programs
 Binocular program
Revision History
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6 Otero, Sebastian Alberto 2024-05-17 20:15 UTC Range from AAVSO data. Gaia DR3 position.
5 Otero, Sebastian Alberto 2020-06-10 02:48 UTC Reference to 2020A&A...635A..14T added. Gaia DR2 position.
4 Billiaert, Bruno 2015-12-29 23:51 UTC discoverer added (1908BSAFR..22..241C)
3 Otero, Sebastian Alberto 2011-06-29 20:01 UTC Minimum magnitude from AAVSO V-data.
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.