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Name
  BR Her  
AAVSO UID
000-BDR-111 (173 observations)  
Constellation
Hercules Sequence
J2000.0
18 45 52.43 +25 01 58.1  (281.46846 +25.03281) Search nearby
B1950.0 18 43 49.28 +24 58 43.3
Proper motion
RA: -1.579 +/- 2.629 mas/yDec: -1.716 +/- 2.340 mas/ySource: Gaia DR1
Galactic coord. 54.964 +12.270
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J18455242+2501581 AN 331.1928 ASAS J184553+2501.9
ASASSN-V J184552.34+250157.5 GSC 02112-01538 NSVS 8185518
NSVS J1845524+250157 ROTSE1 J184552.36+250157.1 TYC 2112-1538-1
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Variability type
SRD:
Spectral type G/K
Mag. range
11.5 - 12.4 V
Discoverer --
Epoch
25 May 2006 (HJD 2453881.0) Ephemeris
Outburst --
Period 108.5: d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto In 1999 NSVS data shows an RVA-like light curve with P= 120 d. (60 d. for the SRD solution). Between 2003 and 2009 ASAS data shows a single wave variation of 108.5 d. and sometimes alternating minima depth with P= 217 d. The SRD solution based on the ASAS-3 more recent period is given. J-K= 1.10.
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References
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1 P.R. Wozniak, S.J. Williams, W.T. Vestrand, V. Gupta, AJ 128, 2965, 2004 2004AJ....128.2965W
2 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
3 C.Akerlof et al., AJ 119, 1901, 2000. 2000AJ....119.1901A
4 P.Ahnert, KVBB N24, 1941. 1941KVeBB...6....4A
5 C.Hoffmeister, Sonn Mitt N16, 1929. 1929MiSon..16....1H
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 = 8.15H = 7.30K = 7.05J - K = 1.10
AllWISE W1 = 7.07W2 = 6.96W3 = 6.64W4 = 6.44W1 - W2 = 0.10W3 - W4 = 0.21
APASS-DR9 B = 13.98V = 11.86g' = 13.00r' = 11.19i' = 10.23B - V = 2.12
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 18 45 52.43 +25 01 58.1 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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1 Light curves Otero, Sebastian Alberto 2012-05-27 02:50 UTC Light curves with NSVS and ASAS-3 data showing the changes between the 1999 and the 2003-2009 behaviour.
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Otero, Sebastian Alberto 2012-05-27 02:50 UTC Primary record creation. Type, period, epoch and range from ASAS-3 and NSVS data. UCAC3 position.
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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