stampa
Login

About to create a great list of doubles? Share it with other users!
Create your account here


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
15550-1923
HU 1274
47 Lib


Nearby doubles
24' : 15533-1924
VSP 46

39' : 15568-1854
BRT1495

40' : 15570-1951
KSA 117

41' : 15575-1903
USD 178

47' : 15527-1956
RST2983

55' : 15516-1856
OCC 452

57' : 15564-2016
TOK 735

59' : 15566-2017
KPP 357

66' : 15583-1837
LAF 90

68' : 15591-1956
SHJ 213AB

70' : 15590-1844
KSA 121AB

72' : 16008-1928
USD 299

75' : 15597-1848
GWP2573

81' : 15567-2040
TOK 737

81' : 15564-1805
LDS4603

81' : 15506-1831
GWP2557

86' : 15564-2046
OCC 399

87' : 15548-2049
RST2985

88' : 15515-2035
OCC 689

89' : 16010-1858
HDS2257

89' : 15537-2049
SKF1642

92' : 16014-1937
USD 315

92' : 15491-1844
ARA 431

92' : 15488-1857
GWP2555

92' : 15512-2038
BRT1494

94' : 16000-2025
HLD 125AB



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

15550-1923 HU 1274 (47 Lib)

 
 
15h 55m 00.37s -19° 22' 58.4" P.A. 114.00 sep 0.4 mag 6.04,8.50 Sp B5V dist. 236.41 pc (771.17 l.y.)
 
 
Coord 2000 15550-1923 Discov num HU 1274 Comp Coord arcsec 2000 15 55 00.37 -19 22 58.4
Date first 1904 Date last 2018 Obs 39
Pa first 154 Pa last 113.9 P.A. Now (θ) 113.9°
Sep first 0.4 Sep last 0.41 Sep. Now (ρ) 0.41"
Mag pri 6.04 Mag sec 8.50 delta mag (ΔM) 2.46 Spectral class B5V (blue-white)
Pri motion ra -010 Sec motion ra -010
Pri motion dec -014 Sec motion dec -014
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 47 Lib Var name NSV7327 Lib Constellation Libra SAO 159572
HIP 77939 Tycho2 6195-00249-1 Gaia DR2 6247821859582891264 HD 142378
HR 5915 GC 21364 ADS 9834 BD BD-18 4195
CP CP-19 5926 Flamsteed 47 Librae Flamsteed name 47 Lib Distance 236.41
Distance ly 771.17
 
 
ORBITAL ELEMENTS
 
 
Period (P)361y Periastron (T)1974.3y Semi-major axis (a)0.576a
Eccentricity (e)0 Inclination (i)101.7° Longitude of periastron (ω)0°
Node (Ω)124.4° Notesn ReferenceZir2015a
Equinox2000 Last observation2009 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 118.8 0.522
2001 118.6 0.518
2002 118.3 0.513
2003 118.1 0.509
2004 117.8 0.504
2005 117.6 0.499
2006 117.3 0.494
2007 117.0 0.489
2008 116.7 0.484
2009 116.4 0.479
2010 116.1 0.473
2011 115.8 0.468
2012 115.5 0.462
2013 115.2 0.456
2014 114.9 0.450
2015 114.5 0.444
2016 114.2 0.438
2017 113.8 0.431
2018 113.5 0.425
2019 113.1 0.418
2020 112.7 0.412
2021 112.3 0.405
2022 111.9 0.398
2023 111.5 0.391
2024 111.0 0.384
2025 110.6 0.377
2026 110.1 0.370
2027 109.6 0.362
2028 109.0 0.355
2029 108.5 0.347
2030 107.9 0.340


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds15550-1923a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 15550-1923 HU 1274 (47 Lib) : NOTES
 
 
discov_num notes refcode
HU 1274 47 Lib. No duplicity seen 1923.5, 1924.5 VBs1927a
A is a spectroscopic binary.
 
 
REFERENCES
 
 
refcode metd author reference
VBs1927a Ma j Van Biesbroeck, G. 1927PYerO...5....1V
VBs1927a +Pa Pub. Yerkes Obs. 5, pt. 1, 1927
VBs1927a +orb
Zir2015a orb - Zirm, H. 2015IAUDS.185....1Z
Zir2015a Inf. Circ. 185, 1, 2015
 
 
DISCOVERER
 
 
idgroup discov author
1 HU Hussey, W.F.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15550-1923 HU 1274 2000 36 120 0.5 6.04 8.50 B5V NVD 155500.37-192258.4
15550-1923 HU 1274 2009 37 117 0.5 6.04 8.50 B5V NVD 155500.37-192258.4
15550-1923 HU 1274 2018 39 114 0.4 6.04 8.50 B5V NO 155500.37-192258.4

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 15550-1923 HU 1274 (47 Lib) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15550-1923 HU 1274 (47 Lib) : MEASURES
 
 
No records found.

 
 
WDS 15550-1923 (47 Lib) : VIRTUAL EYEPIECE
 
 

15550-1923 HU 1274A mag 6.04 Sp B5V 15550-1923 HU 1274B sep 0.4 P.A. 115.20 mag 8.5 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 15550-1923 (47 Lib) : ALADIN DSS IMAGE @ 15h 55m 00.37s -19° 22' 58.4"
 
 
 
 
WDS 15550-1923 HU 1274 (47 Lib) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15550-1923 HU 1274 distance=0' 15533-1924 VSP 46 distance=24' 15568-1854 BRT1495 distance=39' 15570-1951 KSA 117 distance=40' 15575-1903 USD 178 distance=41' 15527-1956 RST2983 distance=47' 15516-1856 OCC 452 distance=55' 15564-2016 TOK 735 distance=57' 15566-2017 KPP 357 distance=59' 15583-1837 LAF 90 distance=66' 15591-1956 SHJ 213AB distance=68' 15590-1844 KSA 121AB distance=70' 15590-1844 KSA 121AC distance=70' 16008-1928 USD 299 distance=72' 15597-1848 GWP2573 distance=75' 15567-2040 TOK 737 distance=81' 15564-1805 LDS4603 distance=81' 15506-1831 GWP2557 distance=81' 15564-2046 OCC 399 distance=86' 15548-2049 RST2985 distance=87' 15515-2035 OCC 689 distance=88' 16010-1858 HDS2257 distance=89' 15537-2049 SKF1642 distance=89' 16014-1937 USD 315 distance=92' 15491-1844 ARA 431 distance=92' 15488-1857 GWP2555 distance=92' 15512-2038 BRT1494 distance=92' 16000-2025 HLD 125AB distance=94' 16000-2025 HLD 125AC distance=94' 15588-1758 MET 66 distance=101' 16001-2027 KOH 63 distance=101' 16006-2027 HLD 126 distance=102' 15506-2043 RSS 387 distance=102' 15501-1809 OCC 51 distance=103' 16002-1811 UC 3102 distance=103' 16020-2008 KSA 123 distance=109' 15567-1736 LDS4605 distance=110' 16024-1957 LAF 95AB distance=110' 16024-1957 LAF 95AC distance=110' 16024-1957 LAF 95AD distance=110' 16028-1931 KSA 79 distance=110' 15470-1908 HU 656 distance=115' 15598-2058 RST2990 distance=117' 15543-1726 J 1588BC distance=118' 15543-1726 J 1588AB distance=118' 15476-1829 UC 3067 distance=118' 16031-1950 OCC 449 distance=118' 16030-2000 RST2995 distance=120' 15592-1734 TDS9711 distance=125' 16039-1932 GWP2584 distance=126' 15473-2028 TOK 675 distance=127' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 15550-1923 HU 1274 114 0.4
Show 15533-1924 VSP 46 216 0.0 24
Show 15568-1854 BRT1495 354 3.7 39
Show 15570-1951 KSA 117 297 0.5 40
Show 15575-1903 USD 178 124 1.0 41
Show 15527-1956 RST2983 51 1.5 47
Show 15516-1856 OCC 452 -1 0.3 55
Show 15564-2016 TOK 735 177 0.2 57
Show 15566-2017 KPP 357 20 3.8 59
Show 15583-1837 LAF 90 352 5.6 66
Show 15591-1956 SHJ 213 AB 318 17.8 68
Show 15590-1844 KSA 121 AB 56 0.9 70
Show 15590-1844 KSA 121 AC 320 3.3 70
Show 16008-1928 USD 299 129 0.6 72
Show 15597-1848 GWP2573 92 12.8 75
Show 15567-2040 TOK 737 39 1.4 81
Show 15564-1805 LDS4603 38 3.6 81
Show 15506-1831 GWP2557 50 34.9 81
Show 15564-2046 OCC 399 -1 0.0 86
Show 15548-2049 RST2985 83 1.7 87
Show 15515-2035 OCC 689 -1 0.4 88
Show 16010-1858 HDS2257 231 0.4 89
Show 15537-2049 SKF1642 68 1.1 89
Show 16014-1937 USD 315 110 0.4 92
Show 15491-1844 ARA 431 141 12.2 92
Show 15488-1857 GWP2555 304 98.2 92
Show 15512-2038 BRT1494 103 5.1 92
Show 16000-2025 HLD 125 AB 305 2.9 94
Show 16000-2025 HLD 125 AC 24 27.3 94
Show 15588-1758 MET 66 226 9.1 101
Show 16001-2027 KOH 63 129 0.1 101
Show 16006-2027 HLD 126 34 2.3 102
Show 15506-2043 RSS 387 209 22.5 102
Show 15501-1809 OCC 51 -1 0.1 103
Show 16002-1811 UC 3102 155 121.0 103
Show 16020-2008 KSA 123 218 0.0 109
Show 15567-1736 LDS4605 135 28.6 110
Show 16024-1957 LAF 95 AB 341 5.3 110
Show 16024-1957 LAF 95 AC 326 5.7 110
Show 16024-1957 LAF 95 AD 197 6.2 110
Show 16028-1931 KSA 79 73 28.6 110
Show 15470-1908 HU 656 16 1.4 115
Show 15598-2058 RST2990 177 0.2 117
Show 15543-1726 J 1588 BC 145 16.9 118
Show 15543-1726 J 1588 AB 168 9.0 118
Show 15476-1829 UC 3067 242 48.4 118
Show 16031-1950 OCC 449 -1 0.0 118
Show 16030-2000 RST2995 9 2.9 120
Show 15592-1734 TDS9711 248 0.6 125
Show 16039-1932 GWP2584 196 33.0 126
Show 15473-2028 TOK 675 85 167.3 127

 
 
WDS 15550-1923 : COMPONENTS
 
 
  A
B pa=115.2°
sep=0.39"
 
 
15550-1923 A
 
 
Componente originario normalizzato AB Name 47 Lib Coord arcsec 2000 155500.37-192258.4 Mag 6.04
Spectral class B5V (blue-white) PmRA -10.00 PmDE -14.0 SAO 159572
HIP 77939 Tycho2 6195-00249-1 HD 142378 HR 5915
GC 21364 BD BD-18 4195 CP CP-19 5926 Flamsteed 47 Librae
Flamsteed name 47 Lib
Tycho2
Tycho2 6195-00249-1 Pflag RAmdeg 238.75153542 DEmdeg -19.38292445
PmRA -9.9 PmDE -13.7 E RAmdeg 3 E DEmdeg 4
E pmRA 0.7 E pmDE 0.7 EpRAm 1991.43 EpDEm 1990.78
Num 23 Q RAmdeg 1.3 Q DEmdeg 1.2 Q pmRA 1.4
Q pmDE 1.4 BTmag 5.932 E BTmag 0.014 VTmag 5.959
E VTmag 0.010 Prox 999 TYC T HIP 77939
CCDM AB RAdeg 238.75155972 DEdeg -19.38289167 EpRA 1990 1.78
EpDE 1990 1.34 E RAdeg 3.4 E DEdeg 3.9 Posflg P
Corr 0.2
SAO
SAO 159572 DelFlag RA1950 PmRA1950 -0.0012
DE1950 PmDE1950 -0.024 Vmag 5.9 SpType B5
Double code Source 70 CatNum 21364 DM BD-18 4195
DMcomp BDsup HD 142378 M HD 0
GC 21364 RA1950rad 4.15436946 DE1950rad -0.3357465 PmRA2000 -0.0011
PmDE2000 -0.02
Hipparcos
Catalog H HIP 77939 Proxy H RAhms 15 55 00.37
DEdms -19 22 58.4 Vmag 5.95 VarFlag R Vmag G
RAdeg 238.752 DEdeg -19.3829 AstroRef A Plx 5.23
CCDM 15550-1923 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 121 Rho 0.553 HD 142378 BD BD-18 4195
CD CP CP-19 5926 Dm number -18 4195 VIred -0.01
SpType B2/B3V R SpType Coord arcsec 2000 155500.37-192258.4
Hipparcos 2
HIP 77939 Sn 15 So 3 Nc 2
RArad 4.1670005329 DErad -0.3382950868 Plx 4.23 PmRA -8.11
PmDE -16.25 E RArad 0.74 E DErad 0.44 E Plx 0.83
E pmRA 1.05 E pmDE 0.89 Hpmag 5.9524 E Hpmag 0.0006
SHp 0.006 VA 0 BV -0.013 E BV 0.021
VI -0.01
CCDM
Ccdm 15550-1923 RComp Comp A Note1
Note2 Discov num DRAs 0.35 DDEs 1.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.1 Sp B5 PmNote *
PmRA -16 PmDE -24 Dm number -18 4195 Cat1 BD
Name2 159572 Cat2 SAO HD 142378 M HD
ADS BDS A 9834 M ADS BDS N IDS IDS 15492S1905A
HIC 77939
 
 
15550-1923 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 155500.39-192258.6 Mag 8.5 PmRA -10.00
PmDE -14.0 Calc delta mag 2.46 Calc coord yes
CCDM
Ccdm 15550-1923 RComp Comp B Note1
Note2 Discov num HU 1274 DRAs DDEs
R dRAs Year 1958 Theta 129 Rho 0.5
Obs 21 Vmag 8.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 9834 M ADS BDS N N IDS IDS 15492S1905B
HIC 77939