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Current system
20111-5731
HDO 295
HD 191095


Nearby doubles
36' : 20139-5800
B 471

42' : 20067-5711
LDS 701

46' : 20149-5659
RMK 25

58' : 20154-5646
KPP3076AB

63' : 20162-5645
TDT2132

79' : 20113-5613
I 1414

79' : 20014-5725
LDS 696

80' : 20043-5635
LDS 699

83' : 20170-5839
HDS2892

83' : 20209-5755
NSN 450

83' : 20115-5854
UC 4116

84' : 20068-5615
I 1412

91' : 20203-5825
KPP 469

95' : 20089-5559
TDT2021AB

102' : 20233-5707
I 126

103' : 19584-5725
DAW 25

104' : 20007-5834
KPP3071

105' : 20206-5844
HJ 5185AB

105' : 20043-5603
UC 4075

109' : 20020-5853
RST5148

109' : 20091-5544
TDT2027

111' : 20224-5630
FIN 276

112' : 20246-5802
TDT2246

117' : 20002-5617
B 457

121' : 20014-5601
B 460

126' : 20094-5526
UC 4108



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20111-5731 HDO 295 (HD 191095)

 
 
20h 11m 07.43s -57° 31' 27.3" P.A. 301.00 sep 0.2 mag 6.76,7.68 Sp B7V+A3V dist. 160 pc (521.92 l.y.)
 
 
Coord 2000 20111-5731 Discov num HDO 295 Comp Coord arcsec 2000 20 11 07.43 -57 31 27.3
Date first 1901 Date last 2021 Obs 29
Pa first 228 Pa last 300.9 P.A. Now (θ) 300.9°
Sep first 0.7 Sep last 0.247 Sep. Now (ρ) 0.247"
Mag pri 6.76 Mag sec 7.68 delta mag (ΔM) 0.92 Spectral class B7V+A3V (blue-white/white)
Pri motion ra +016 Sec motion ra +016
Pri motion dec -035 Sec motion dec -035
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 191095 Constellation Pavo SAO 246470 HIP 99453
Tycho2 8784-01295-1 Gaia DR2 6444646501219089408 HD 191095 HR 7691
GC 27966 CP CP-57 9622 Distance 160 Distance ly 521.92
 
 
ORBITAL ELEMENTS
 
 
Period (P)500y Periastron (T)2030.1y Semi-major axis (a)0.862a
Eccentricity (e)0.6 Inclination (i)66.4° Longitude of periastron (ω)262.5°
Node (Ω)93.9° Notesn ReferenceTok2021f
Equinox2000 Last observation2021 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 274.3 0.507
2001 274.9 0.499
2002 275.6 0.490
2003 276.4 0.481
2004 277.1 0.472
2005 277.9 0.462
2006 278.7 0.452
2007 279.6 0.441
2008 280.5 0.430
2009 281.4 0.419
2010 282.4 0.407
2011 283.5 0.395
2012 284.6 0.383
2013 285.9 0.370
2014 287.2 0.357
2015 288.6 0.343
2016 290.1 0.329
2017 291.7 0.315
2018 293.5 0.301
2019 295.5 0.286
2020 297.7 0.271
2021 300.2 0.256
2022 303.0 0.241
2023 306.1 0.227
2024 309.7 0.212
2025 313.7 0.198
2026 318.4 0.185
2027 323.8 0.172
2028 330.0 0.161
2029 337.0 0.152
2030 344.9 0.145


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


 
  


wds20111-5731a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 20111-5731 HDO 295 (HD 191095) : NOTES
 
 
discov_num notes refcode
HDO 295 Spectroscopic triple.
 
 
REFERENCES
 
 
refcode metd author reference
Tok2021f orb - Tokovinin, A. 2021IAUDS.204....1T
Tok2021f Inf. Circ. 204, 1, 2021
 
 
DISCOVERER
 
 
idgroup discov author
1 HDO Harvard Obs.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20111-5731 HDO 295 1991 21 269 0.6 6.76 7.68 B7V+A3V N D 201107.43-573127.3
20111-5731 HDO 295 2008 22 281 0.4 6.76 7.68 B7V+A3V N D 201107.43-573127.3
20111-5731 HDO 295 2009 23 284 0.5 6.76 7.68 B7V A3V N D 201107.43-573127.3
20111-5731 HDO 295 2013 24 287 0.4 6.76 7.68 B7V A3V N 201107.43-573127.3
20111-5731 HDO 295 2016 26 283 0.5 6.76 7.68 B7V+A3V N 201107.43-573127.3
20111-5731 HDO 295 2017 27 293 0.3 6.76 7.68 B7V+A3V N 201107.43-573127.3
20111-5731 HDO 295 2019 28 296 0.3 6.76 7.68 B7V+A3V N 201107.43-573127.3
20111-5731 HDO 295 2021 29 301 0.2 6.76 7.68 B7V+A3V N 201107.43-573127.3

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

 
 
WDS 20111-5731 HDO 295 (HD 191095) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20111-5731 HDO 295 (HD 191095) : MEASURES
 
 
No records found.

 
 
WDS 20111-5731 (HD 191095) : VIRTUAL EYEPIECE
 
 

20111-5731 HDO 295A mag 6.76 Sp B7V 20111-5731 HDO 295B sep 0.2 P.A. 318.10 mag 7.68 Sp A3V 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 20111-5731 (HD 191095) : ALADIN DSS IMAGE @ 20h 11m 07.43s -57° 31' 27.3"
 
 
 
 
WDS 20111-5731 HDO 295 (HD 191095) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20111-5731 HDO 295 distance=0' 20139-5800 B 471 distance=36' 20067-5711 LDS 701 distance=42' 20149-5659 RMK 25 distance=46' 20154-5646 KPP3076AB distance=58' 20154-5646 KPP3076Aa,Ab distance=58' 20162-5645 TDT2132 distance=63' 20113-5613 I 1414 distance=79' 20014-5725 LDS 696 distance=79' 20043-5635 LDS 699 distance=80' 20170-5839 HDS2892 distance=83' 20209-5755 NSN 450 distance=83' 20115-5854 UC 4116 distance=83' 20068-5615 I 1412 distance=84' 20203-5825 KPP 469 distance=91' 20089-5559 TDT2021AB distance=95' 20089-5559 RST4052AC distance=95' 20233-5707 I 126 distance=102' 19584-5725 DAW 25 distance=103' 20007-5834 KPP3071 distance=104' 20206-5844 HJ 5185AB distance=105' 20043-5603 UC 4075 distance=105' 20020-5853 RST5148 distance=109' 20091-5544 TDT2027 distance=109' 20224-5630 FIN 276 distance=111' 20246-5802 TDT2246 distance=112' 20002-5617 B 457 distance=117' 20014-5601 B 460 distance=121' 20094-5526 UC 4108 distance=126' 20256-5644 HJ 5193AB (Peacock) distance=128' 20256-5644 HJ 5193AC (Peacock) distance=128' 20256-5644 HJ 5193AD (Peacock) distance=128' 20037-5925 UC 4072 distance=128' 20266-5806 TDT2277 distance=129' 20163-5935 KPP2568 distance=130' 20256-5644 HJ 5193BC distance=132' 19598-5552 KPP 449 distance=137' 20250-5616 BRT2826 distance=137' 20200-5929 TDT2177 distance=137' 20040-5525 TDT1947 distance=140' 20249-5556 FIN 277 distance=149' 20295-5757 TSN 11 distance=150' 20088-6001 I 1120AB distance=151' 20088-6001 UC 4101AC distance=151' 20232-5536 SPM 38 distance=153' 20122-6004 KPP 462 distance=153' 19570-5917 LDS 693 distance=154' 20070-5501 UC 4088 distance=154' 19524-5705 RST1049 distance=155' 20303-5741 B 485 distance=155' 20055-5504 UC 4082 distance=155' 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 20111-5731 HDO 295 301 0.2
Show 20139-5800 B 471 255 1.0 36
Show 20067-5711 LDS 701 333 78.9 42
Show 20149-5659 RMK 25 29 7.1 46
Show 20154-5646 KPP3076 AB 268 8.7 58
Show 20154-5646 KPP3076 Aa,Ab 35 0.8 58
Show 20162-5645 TDT2132 192 0.8 63
Show 20113-5613 I 1414 125 0.8 79
Show 20014-5725 LDS 696 116 31.6 79
Show 20043-5635 LDS 699 304 8.1 80
Show 20170-5839 HDS2892 356 0.1 83
Show 20209-5755 NSN 450 166 2.7 83
Show 20115-5854 UC 4116 105 10.7 83
Show 20068-5615 I 1412 127 6.8 84
Show 20203-5825 KPP 469 95 3.9 91
Show 20089-5559 TDT2021 AB 236 0.5 95
Show 20089-5559 RST4052 AC 55 1.5 95
Show 20233-5707 I 126 75 2.0 102
Show 19584-5725 DAW 25 220 3.2 103
Show 20007-5834 KPP3071 331 5.6 104
Show 20206-5844 HJ 5185 AB 60 18.7 105
Show 20043-5603 UC 4075 170 12.4 105
Show 20020-5853 RST5148 90 1.1 109
Show 20091-5544 TDT2027 190 1.0 109
Show 20224-5630 FIN 276 6 0.2 111
Show 20246-5802 TDT2246 214 0.5 112
Show 20002-5617 B 457 283 4.8 117
Show 20014-5601 B 460 54 0.5 121
Show 20094-5526 UC 4108 337 19.7 126
Show Peacock 20256-5644 HJ 5193 AB 80 249.4 128
Show Peacock 20256-5644 HJ 5193 AC 77 244.4 128
Show Peacock 20256-5644 HJ 5193 AD 254 62.3 128
Show 20037-5925 UC 4072 67 42.0 128
Show 20266-5806 TDT2277 213 0.4 129
Show 20163-5935 KPP2568 303 23.2 130
Show 20256-5644 HJ 5193 BC 332 16.7 132
Show 19598-5552 KPP 449 77 5.0 137
Show 20250-5616 BRT2826 123 4.1 137
Show 20200-5929 TDT2177 261 1.9 137
Show 20040-5525 TDT1947 273 1.6 140
Show 20249-5556 FIN 277 39 0.0 149
Show 20295-5757 TSN 11 103 111.7 150
Show 20088-6001 I 1120 AB 68 6.0 151
Show 20088-6001 UC 4101 AC 184 84.7 151
Show 20232-5536 SPM 38 317 15.8 153
Show 20122-6004 KPP 462 232 3.3 153
Show 19570-5917 LDS 693 299 49.6 154
Show 20070-5501 UC 4088 273 33.4 154
Show 19524-5705 RST1049 328 0.9 155
Show 20303-5741 B 485 83 0.3 155
Show 20055-5504 UC 4082 122 25.4 155

 
 
WDS 20111-5731 : COMPONENTS
 
 
  A
B pa=318.1°
sep=0.17"
 
 
20111-5731 A
 
 
Componente originario normalizzato AB Name HD 191095 Coord arcsec 2000 201107.43-573127.3 Mag 6.76
Spectral class B7V (blue-white) PmRA 16.00 PmDE -35.0 SAO 246470
HIP 99453 Tycho2 8784-01295-1 HD 191095 HR 7691
GC 27966 CP CP-57 9622
Tycho2
Tycho2 8784-01295-1 Pflag RAmdeg 302.78090853 DEmdeg -57.52423844
PmRA 15.8 PmDE -34.8 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.3 EpRAm 1991.45 EpDEm 1991.34
Num 12 Q RAmdeg 1.2 Q DEmdeg 1.8 Q pmRA 1.2
Q pmDE 1.6 BTmag 6.486 E BTmag 0.014 VTmag 6.418
E VTmag 0.010 Prox 999 TYC T HIP 99453
CCDM AB RAdeg 302.78084139 DEdeg -57.52415722 EpRA 1990 1.75
EpDE 1990 1.60 E RAdeg 3.5 E DEdeg 3.7 Posflg P
Corr -0.3
SAO
SAO 246470 DelFlag RA1950 PmRA1950 0.0003
DE1950 PmDE1950 -0.022 Vmag 6.5 SpType A0
Double code Source 70 CatNum 27966 DM CP-57 9622
DMcomp BDsup HD 191095 M HD 0
GC 27966 RA1950rad 5.26685269 DE1950rad -1.00657068 PmRA2000 -0.0003
PmDE2000 -0.025
Hipparcos
Catalog H HIP 99453 Proxy H RAhms 20 11 07.41
DEdms -57 31 27.0 Vmag 6.36 VarFlag 1 R Vmag G
RAdeg 302.781 DEdeg -57.5242 AstroRef A Plx 7.21
CCDM 20111-5731 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 269 Rho 0.568 HD 191095 BD
CD CP CP-57 9622 Dm number -57 9622 VIred 0.07
SpType A1V R SpType Coord arcsec 2000 201107.41-573127.0
Hipparcos 2
HIP 99453 Sn 15 So 3 Nc 2
RArad 5.2845235285 DErad -1.0039859028 Plx 6.25 PmRA 10.58
PmDE -34.89 E RArad 0.63 E DErad 0.46 E Plx 0.78
E pmRA 0.85 E pmDE 0.78 Hpmag 6.3935 E Hpmag 0.0013
SHp 0.012 VA 1 BV 0.057 E BV 0.003
VI 0.07
CCDM
Ccdm 20111-5731 RComp Comp A Note1
Note2 Discov num DRAs 1.22 DDEs -26.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.9 Sp A0 PmNote *
PmRA 1 PmDE -22 Dm number -57 9622 Cat1 CPD
Name2 246470 Cat2 SAO HD 191095 M HD
ADS BDS M ADS BDS N IDS IDS 20030S5749A
HIC 99453
 
 
20111-5731 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 201107.42-573127.2 Mag 7.68 Spectral class A3V (white)
PmRA 16.00 PmDE -35.0 Calc delta mag 0.92 Calc coord yes
CCDM
Ccdm 20111-5731 RComp Comp B Note1
Note2 Discov num HDO 295 DRAs DDEs
R dRAs Year 1952 Theta 256 Rho 0.6
Obs 13 Vmag 7.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20030S5749B
HIC 99453