18554+1331 BU 647 AB (HD 230073)

 
 
18h 55m 26.45s +13° 31' 06.8" P.A. 5.00 sep 1.3 mag 9.95,10.66 Sp B9
 
 
Coord 2000 18554+1331 Discov num BU  647 Comp AB Coord arcsec 2000 18 55 26.45 +13 31 06.8
Date first 1877 Date last 2016 Obs 21
Pa first 14 Pa last 5.2 P.A. Now (θ) 5.2°
Sep first 1.0 Sep last 1.312 Sep. Now (ρ) 1.312"
Mag pri 9.95 Mag sec 10.66 delta mag (ΔM) 0.71 Spectral class B9 (blue-white)
Pri motion ra +001 Sec motion ra +001
Pri motion dec -009 Sec motion dec -009
Notes N (See Notes)
Nature of this double is uncertain.
 
 
18554+1331 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 230073 104260 18 55 26 +13 31 07 BU 647 AB 2016 21 5 1.3 9.95 10.66 0.71 <===
Show 104260 18 55 26 +13 31 07 BU 647 AC 2016 27 218 18.5 9.95 10.27 0.32
Show 104260 18 55 26 +13 31 07 FOX 9032 AD 2015 4 86 37.5 9.95 13.75 3.80
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 230073 Constellation Hercules SAO 104260 Tycho2 1051-00204-1
Gaia DR2 4506293228998106496 HD 230073
 
 
WDS 18554+1331 BU 647 AB (HD 230073) : NOTES
 
 
discov_num notes refcode
BU 647 Also DU 2, BDS 8899. Identification, position corrected by Heintz. Hei1983a
 
 
REFERENCES
 
 
refcode metd author reference
Hei1983a M+ j Heintz, W.D. 1983ApJS...51..249H
Hei1983a +Po ApJS 51, 249, 1983
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 FOX Fox, P.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18554+1331 BU 647 AB 2005 17 7 1.3 9.95 10.66 B9 N 185526.45+133106.8
18554+1331 BU 647 AB 2016 18 6 1.3 9.95 10.66 B9 N 185526.45+133106.8

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WDS 18554+1331 BU 647 AB (HD 230073) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18554+1331 BU 647 AB (HD 230073) : MEASURES
 
 
No records found.

 
 
WDS 18554+1331 (HD 230073) : VIRTUAL EYEPIECE
 
 

virtual eyepiece
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Radius:
Components only
 
 
WDS 18554+1331 (HD 230073) : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.