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Name
  RR CrB  
AAVSO UID
000-BBW-452 (23064 observations)  
Constellation
Corona Borealis Sequence
J2000.0
15 41 26.23 +38 33 26.6  (235.35929 +38.55739) Search nearby
B1950.0 15 39 36.24 +38 43 01.2
Proper motion
RA: 20.24 +/- 0.42 mas/yDec: -32.44 +/- 0.55 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 61.848 +52.876
Other names

(Internal only)
AAVSO 1537+38 AN 158.1907 ASASSN-V J154126.33+383325.8
BD+39 2901 DO 15304 GSC 03053-01035
HD 140297 HIP 76844 HV 3002
IRAS 15396+3842 IRC +40271 SAO 64848
TYC 3053-1035-1    
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Variability type
SRB
Spectral type M3-M6
Mag. range
7.3 - 8.2 V
Discoverer Williamina Fleming
Epoch
--
Outburst --
Period 60.8 d
Rise/eclipse dur. 50%  (30 d)
Remarks
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1 GCVS Team P2 = 377d. Delta(m) (P1) ~0.5m, Delta(m) (P2) ~0.6m.
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References
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1 The HIPPARCOS and TYCHO catalogues 1997HIP...C......0E
2 C.Payne-Gaposchkin, HA 118, N11, 1952. 1952AnHar.118....1P
3 Dunér, N. C.; Hartwig, E.; Muller, G., 1908, Benennung von neu entdeckten
veränderlichen Sternen		 1908AN....179...85D
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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 = 2.27H = 1.39K = 1.08J - K = 1.20
AllWISE W3 = 0.39W4 = 0.14W3 - W4 = 0.26
GALEX-DR5 FUV = 20.61NUV = 18.02FUV - NUV = 2.59
SDSS-DR12 u = 10.90g = 8.61r = 7.17i = 10.57z = 8.49u - g = 2.29r - i = -3.40
Images
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Supporting Documents
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Campaigns/Programs
 Binocular program
 LPV Program
Revision History
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4 Fernig, Leo 2022-09-21 20:30 UTC Discoverer updated from 1908AN....179...85D p91
3 Otero, Sebastian Alberto 2011-08-15 20:39 UTC Range from Hipparcos/Tycho and AAVSO data. Spectral type from Buscombe (1999) and Skiff (2010).
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.

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