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Current system
19471-1953
BU 146
HD 186752


Nearby doubles
11' : 19472-2003
BRT1555

15' : 19462-1959
TDT1723

30' : 19491-2000
RST5144

41' : 19444-1939
ARA 792

45' : 19440-1947
BHA 33

47' : 19448-2029
DON 965AB

54' : 19441-2027
BHA 34

59' : 19438-2028
UC 4014

59' : 19446-2039
ARA1198

59' : 19430-1957
WSP 67AB

59' : 19501-2034
TDT1788

59' : 19492-1902
B 451

61' : 19506-1917
HJ 2900

65' : 19431-2023
RST3234

66' : 19512-2023
SHN 240

66' : 19480-2057
HDS2815

69' : 19512-2030
TDT1804

74' : 19428-2034
ARA1195

79' : 19440-2058
ARA1570

83' : 19459-2113
ARA1571

85' : 19508-1846
KPP4172

87' : 19422-2046
CVN 65

88' : 19448-1832
RST3237

89' : 19445-1829
AAQ 11

95' : 19480-1819
UC 4025

96' : 19404-1943
GWP2879



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.

19471-1953 BU 146 (HD 186752)

 
 
19h 47m 06.75s -19° 52' 50.4" P.A. 78.00 sep 0.5 mag 8.61,9.52 Sp G1/2V dist. 96.53 pc (314.88 l.y.)
 
 
Coord 2000 19471-1953 Discov num BU  146 Comp Coord arcsec 2000 19 47 06.75 -19 52 50.4
Date first 1873 Date last 2021 Obs 35
Pa first 290 Pa last 78.3 P.A. Now (θ) 78.3°
Sep first 1.0 Sep last 0.513 Sep. Now (ρ) 0.513"
Mag pri 8.61 Mag sec 9.52 delta mag (ΔM) 0.91 Spectral class G1/2V (yellow)
Pri motion ra -044 Sec motion ra -044
Pri motion dec -033 Sec motion dec -033
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 186752 Constellation Sagittarius SAO 188563 HIP 97348
Tycho2 6320-00835-1 Gaia DR2 6868665223370895232 HD 186752 ADS 12909
BD BD-20 5705 Distance 96.53 Distance ly 314.88
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)198.12y Periastron (T)2198.94y Semi-major axis (a)1.166a
Eccentricity (e)0.852 Inclination (i)65.3° Longitude of periastron (ω)271°
Node (Ω)220.6° Notes ReferenceMsn2019
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 73.6 0.121
2001 150.9 0.076
2002 199.4 0.158
2003 213.3 0.243
2004 220.3 0.312
2005 225.0 0.367
2006 228.6 0.412
2007 231.5 0.450
2008 234.0 0.483
2009 236.2 0.511
2010 238.1 0.537
2011 239.9 0.559
2012 241.6 0.580
2013 243.2 0.599
2014 244.6 0.616
2015 246.0 0.631
2016 247.3 0.646
2017 248.6 0.659
2018 249.8 0.671
2019 251.0 0.683
2020 252.1 0.694
2021 253.3 0.704
2022 254.3 0.713
2023 255.4 0.722
2024 256.4 0.731
2025 257.4 0.739
2026 258.4 0.746
2027 259.3 0.753
2028 260.3 0.760
2029 261.2 0.766
2030 262.1 0.772


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


 
  


wds19471-1953c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)115.2y± 1.6 Periastron (T)1998.28y± 0.12 Semi-major axis (a)1.106a± 0.018
Eccentricity (e)0.8144± 0.0058 Inclination (i)75.81°± 0.32 Longitude of periastron (ω)278.92°± 0.3
Node (Ω)34.32°± 0.25 Notes ReferenceMdz2021
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 31.6 0.287
2001 36.7 0.371
2002 40.1 0.427
2003 42.8 0.466
2004 45.1 0.494
2005 47.3 0.515
2006 49.3 0.529
2007 51.2 0.539
2008 53.0 0.546
2009 54.8 0.550
2010 56.6 0.552
2011 58.4 0.552
2012 60.2 0.551
2013 62.0 0.549
2014 63.8 0.545
2015 65.6 0.541
2016 67.5 0.537
2017 69.4 0.532
2018 71.4 0.526
2019 73.3 0.521
2020 75.4 0.515
2021 77.4 0.509
2022 79.6 0.504
2023 81.7 0.498
2024 83.9 0.493
2025 86.2 0.487
2026 88.5 0.483
2027 90.9 0.478
2028 93.3 0.474
2029 95.7 0.470
2030 98.2 0.467


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


 
  


wds19471-1953d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 19471-1953 BU 146 (HD 186752) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Mdz2021 orb j Mendez, R.A., Claveria, R.M. & Costa, E. 2021AJ....161..155M
Mdz2021 AJ 161, 155, 2021
Msn2019 orb - Josties, J. & Mason, B.D. 2019IAUDS.199....1M
Msn2019 Inf. Circ. 199, 1, 2019
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19471-1953 BU 146 1991 29 28 0.6 8.61 9.52 G1/2V OD 194706.75-195250.4
19471-1953 BU 146 2009 32 235 0.6 8.61 9.52 G1/2V OD 194706.75-195250.4
19471-1953 BU 146 2010 33 58 0.5 8.61 9.52 G1/2V OD 194706.75-195250.4
19471-1953 BU 146 2018 34 72 0.5 8.61 9.52 G1/2V O 194706.75-195250.4
19471-1953 BU 146 2021 35 78 0.5 8.61 9.52 G1/2V O 194706.75-195250.4

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

 
 
WDS 19471-1953 BU 146 (HD 186752) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19471-1953 BU 146 (HD 186752) : MEASURES
 
 
No records found.

 
 
WDS 19471-1953 (HD 186752) : VIRTUAL EYEPIECE
 
 

19471-1953 BU 146A mag 8.61 Sp G1/2V 19471-1953 BU 146B sep 0.5 P.A. 77.60 mag 9.52 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 19471-1953 (HD 186752) : ALADIN DSS IMAGE @ 19h 47m 06.75s -19° 52' 50.4"
 
 
 
 
WDS 19471-1953 BU 146 (HD 186752) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19471-1953 BU 146 distance=0' 19472-2003 BRT1555 distance=11' 19462-1959 TDT1723 distance=15' 19491-2000 RST5144 distance=30' 19444-1939 ARA 792 distance=41' 19440-1947 BHA 33 distance=45' 19448-2029 DON 965AB distance=47' 19448-2029 DON 965AC distance=47' 19448-2029 HJ 2890AD distance=47' 19448-2029 HJ 2890AE distance=47' 19441-2027 BHA 34 distance=54' 19438-2028 UC 4014 distance=59' 19446-2039 ARA1198 distance=59' 19430-1957 WSP 67AB distance=59' 19430-1957 WSP 67AC distance=59' 19430-1957 WSP 67AD distance=59' 19430-1957 WSP 67AE distance=59' 19430-1957 WSP 67AF distance=59' 19501-2034 TDT1788 distance=59' 19492-1902 B 451 distance=59' 19506-1917 HJ 2900 distance=61' 19431-2023 RST3234 distance=65' 19512-2023 SHN 240 distance=66' 19480-2057 HDS2815 distance=66' 19512-2030 TDT1804 distance=69' 19428-2034 ARA1195 distance=74' 19440-2058 ARA1570 distance=79' 19459-2113 ARA1571 distance=83' 19508-1846 KPP4172 distance=85' 19422-2046 CVN 65 distance=87' 19448-1832 RST3237 distance=88' 19445-1829 AAQ 11 distance=89' 19480-1819 UC 4025 distance=95' 19404-1943 GWP2879 distance=96' 19537-2022 UC 4046 distance=98' 19488-2129 TDS1016 distance=99' 19465-2131 BU 467 distance=99' 19536-1912 DAM 183 distance=101' 19541-1930 ARA 793 distance=102' 19536-2048 LDS4822 distance=106' 19546-1914 HJ 1446 distance=108' 19548-1949 GWP2907 distance=109' 19535-2054 ARA1572 distance=109' 19394-2005 ARA1194 distance=110' 19460-2142 LDS4817 distance=111' 19512-1816 UC 4041 distance=113' 19400-1903 GWP2878 distance=113' 19552-2021 HLD 36 distance=117' 19475-2150 STN 49 distance=117' 19388-2007 ARA1193 distance=119' 19396-1854 ARA 791 distance=121' 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 19471-1953 BU 146 78 0.5
Show 19472-2003 BRT1555 247 3.9 11
Show 19462-1959 TDT1723 14 0.6 15
Show 19491-2000 RST5144 124 2.9 30
Show 19444-1939 ARA 792 227 8.8 41
Show 19440-1947 BHA 33 187 11.2 45
Show 19448-2029 DON 965 AB 241 2.8 47
Show 19448-2029 DON 965 AC 208 4.8 47
Show 19448-2029 HJ 2890 AD 280 30.7 47
Show 19448-2029 HJ 2890 AE 348 30.0 47
Show 19441-2027 BHA 34 108 6.5 54
Show 19438-2028 UC 4014 52 45.0 59
Show 19446-2039 ARA1198 72 14.7 59
Show 19430-1957 WSP 67 AB 54 4.5 59
Show 19430-1957 WSP 67 AC 69 6.0 59
Show 19430-1957 WSP 67 AD 153 18.4 59
Show 19430-1957 WSP 67 AE 330 14.5 59
Show 19430-1957 WSP 67 AF 316 23.5 59
Show 19501-2034 TDT1788 228 0.6 59
Show 19492-1902 B 451 54 0.5 59
Show 19506-1917 HJ 2900 63 19.4 61
Show 19431-2023 RST3234 158 1.2 65
Show 19512-2023 SHN 240 -1 0.3 66
Show 19480-2057 HDS2815 19 0.2 66
Show 19512-2030 TDT1804 242 0.5 69
Show 19428-2034 ARA1195 186 12.5 74
Show 19440-2058 ARA1570 64 9.8 79
Show 19459-2113 ARA1571 332 15.4 83
Show 19508-1846 KPP4172 332 1.9 85
Show 19422-2046 CVN 65 27 5.9 87
Show 19448-1832 RST3237 171 3.2 88
Show 19445-1829 AAQ 11 351 5.7 89
Show 19480-1819 UC 4025 124 76.3 95
Show 19404-1943 GWP2879 220 300.7 96
Show 19537-2022 UC 4046 106 64.0 98
Show 19488-2129 TDS1016 270 0.8 99
Show 19465-2131 BU 467 137 3.7 99
Show 19536-1912 DAM 183 248 7.0 101
Show 19541-1930 ARA 793 246 11.7 102
Show 19536-2048 LDS4822 267 45.3 106
Show 19546-1914 HJ 1446 54 16.9 108
Show 19548-1949 GWP2907 141 108.3 109
Show 19535-2054 ARA1572 255 9.0 109
Show 19394-2005 ARA1194 40 5.4 110
Show 19460-2142 LDS4817 106 127.9 111
Show 19512-1816 UC 4041 315 13.9 113
Show 19400-1903 GWP2878 130 18.7 113
Show 19552-2021 HLD 36 219 1.3 117
Show 19475-2150 STN 49 336 1.4 117
Show 19388-2007 ARA1193 288 7.5 119
Show 19396-1854 ARA 791 86 11.7 121

 
 
WDS 19471-1953 : COMPONENTS
 
 
  A
B pa=77.6°
sep=0.48"
 
 
19471-1953 A
 
 
Componente originario normalizzato AB Name HD 186752 Coord arcsec 2000 194706.75-195250.4 Mag 8.61
Spectral class G1/2V (yellow) PmRA -44.00 PmDE -33.0 SAO 188563
HIP 97348 Tycho2 6320-00835-1 HD 186752 BD BD-20 5705
Tycho2
Tycho2 6320-00835-1 Pflag RAmdeg 296.77814240 DEmdeg -19.88064534
PmRA -44.0 PmDE -32.5 E RAmdeg 6 E DEmdeg 8
E pmRA 1.5 E pmDE 1.4 EpRAm 1991.27 EpDEm 1990.58
Num 10 Q RAmdeg 0.8 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 1.1 BTmag 8.975 E BTmag 0.018 VTmag 8.319
E VTmag 0.012 Prox 999 TYC T HIP 97348
CCDM AB RAdeg 296.77824833 DEdeg -19.88057028 EpRA 1990 1.84
EpDE 1990 1.65 E RAdeg 6.3 E DEdeg 7.5 Posflg P
Corr -0.2
SAO
SAO 188563 DelFlag RA1950 PmRA1950 -0.0032
DE1950 PmDE1950 -0.016 Vmag 8.3 SpType G0
Double code Source 23 CatNum 8476 DM BD-20 5705
DMcomp BDsup HD 186752 M HD 0
GC RA1950rad 5.16700549 DE1950rad -0.34913582 PmRA2000 -0.0031
PmDE2000 -0.017
Hipparcos
Catalog H HIP 97348 Proxy H RAhms 19 47 06.78
DEdms -19 52 50.1 Vmag 8.17 VarFlag R Vmag H
RAdeg 296.778 DEdeg -19.8806 AstroRef A Plx 10.81
CCDM 19471-1953 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 28 Rho 0.626 HD 186752 BD BD-20 5705
CD CP Dm number -20 5705 VIred 0.66
SpType G1/G2V R SpType Coord arcsec 2000 194706.78-195250.1
Hipparcos 2
HIP 97348 Sn 15 So 3 Nc 2
RArad 5.1797575518 DErad -0.3469817692 Plx 10.36 PmRA -47.45
PmDE -29.87 E RArad 0.94 E DErad 0.72 E Plx 0.91
E pmRA 1.04 E pmDE 0.81 Hpmag 8.2954 E Hpmag 0.0013
SHp 0.012 VA 0 BV 0.589 E BV 0.015
VI 0.66
CCDM
Ccdm 19471-1953 RComp Comp A Note1
Note2 Discov num DRAs 0.76 DDEs 10.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.7 Sp G0 PmNote *
PmRA -45 PmDE -16 Dm number -20 5705 Cat1 BD
Name2 188563 Cat2 SAO HD 186752 M HD
ADS BDS A12909 M ADS BDS N IDS IDS 19413S2007A
HIC 97348
 
 
19471-1953 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 194706.78-195250.3 Mag 9.52 PmRA -44.00
PmDE -33.0 Calc delta mag 0.91 Calc coord yes
CCDM
Ccdm 19471-1953 RComp Comp B Note1
Note2 Discov num BU 146 DRAs DDEs
R dRAs Year 1959 Theta 354 Rho 0.7
Obs 21 Vmag 9.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A12909 M ADS BDS N IDS IDS 19413S2007B
HIC 97348