20104-1923 HDS 2873 (HD 191434)

 
 
20h 10m 25.46s -19° 22' 59.4" P.A. 226.00 sep 0.1 mag 7.49,10.22 Sp G0V dist. 61.09 pc (199.28 l.y.)
 
 
Coord 2000 20104-1923 Discov num HDS2873 Comp Coord arcsec 2000 20 10 25.46 -19 22 59.4
Date first 1991 Date last 2020 Obs 11
Pa first 204 Pa last 225.6 P.A. Now (θ) 225.6°
Sep first 0.2 Sep last 0.136 Sep. Now (ρ) 0.136"
Mag pri 7.49 Mag sec 10.22 delta mag (ΔM) 2.73 Spectral class G0V (yellow)
Pri motion ra -004 Sec motion ra
Pri motion dec -127 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 191434 Constellation Capricornus SAO 163313 HIP 99391
Tycho2 6323-02047-1 Gaia DR2 6866542478736575616 HD 191434 GC 27978
BD BD-19 5731 Distance 61.09 Distance ly 199.28
 
 
ORBITAL ELEMENTS
 
 
Period (P)90y Periastron (T)2007.46y± 0.67 Semi-major axis (a)0.3843a± 0.0087
Eccentricity (e)0.484± 0.006 Inclination (i)94°± 0.4 Longitude of periastron (ω)-0.3°± 4.3
Node (Ω)35.2°± 0.9 Notes ReferenceTok2016e
Equinox2000 Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 54.8 0.055
2001 46.9 0.083
2002 43.0 0.111
2003 40.6 0.136
2004 38.9 0.159
2005 37.7 0.177
2006 36.6 0.191
2007 35.6 0.197
2008 34.7 0.197
2009 33.8 0.191
2010 32.7 0.177
2011 31.4 0.159
2012 29.8 0.136
2013 27.4 0.111
2014 23.5 0.083
2015 15.6 0.055
2016 352.7 0.029
2017 282.0 0.023
2018 244.1 0.045
2019 233.1 0.073
2020 228.2 0.102
2021 225.5 0.130
2022 223.7 0.158
2023 222.5 0.185
2024 221.6 0.211
2025 220.9 0.237
2026 220.3 0.261
2027 219.8 0.284
2028 219.4 0.307
2029 219.0 0.328
2030 218.7 0.349


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


 
  


wds20104-1923a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 20104-1923 HDS 2873 (HD 191434) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2016e orb - Tokovinin, A. 2016AJ....152..138T
Tok2016e AJ 152, 138, 2016
 
 
DISCOVERER
 
 
idgroup discov author
1 HDS Hipparcos Double Star (from additional DD list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20104-1923 HDS2873 2006 3 35 0.2 7.49 10.22 G0V D 201025.46-192259.4
20104-1923 HDS2873 2007 4 36 0.2 7.49 10.22 G0V D 201025.46-192259.4
20104-1923 HDS2873 2013 8 206 0.1 7.49 10.22 G0V 201025.46-192259.4
20104-1923 HDS2873 2014 9 194 0.1 7.49 10.22 G0V 201025.46-192259.4
20104-1923 HDS2873 2019 10 231 0.1 7.49 10.22 G0V O 201025.46-192259.4
20104-1923 HDS2873 2020 11 226 0.1 7.49 10.22 G0V O 201025.46-192259.4

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

 
 
WDS 20104-1923 HDS 2873 (HD 191434) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20104-1923 HDS 2873 (HD 191434) : MEASURES
 
 
No records found.

 
 
WDS 20104-1923 (HD 191434) : VIRTUAL EYEPIECE
 
 

20104-1923 HDS2873A mag 7.49 Sp G0V 20104-1923 HDS2873B sep 0.1 P.A. 223.90 mag 10.22 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 20104-1923 (HD 191434) : ALADIN DSS IMAGE @ 20h 10m 25.46s -19° 22' 59.4"
 
 
 
 
WDS 20104-1923 HDS 2873 (HD 191434) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20104-1923 HDS2873 distance=0' 20093-1925 HU 80 distance=17' 20091-1928 TDT2026 distance=20' 20102-1954 UC 4110 distance=31' 20082-1934 BHA 36 distance=33' 20080-1939 KPP1032 distance=39' 20071-1905 RST3248 distance=51' 20134-1953 ARA1203 distance=52' 20097-2022 SEE 409 distance=60' 20070-1848 HJ 2928 distance=62' 20103-2030 BEU 21 distance=67' 20058-1939 DON 978 distance=67' 20144-1843 ARA 796 distance=68' 20157-1849 HJ 2940AB distance=83' 20157-1849 HJ 2940AC distance=83' 20157-1849 ABH 134AD distance=83' 20157-1849 ABH 134AE distance=83' 20068-2034 HU 759 distance=87' 20106-2055 AHD 14 distance=92' 20154-2030 SEE 411 distance=97' 20154-1817 RST3252 distance=97' 20032-1940 KPP 620 distance=103' 20049-2034 BRT1559 distance=105' 20186-1942 ARA1204 distance=117' 20089-2122 BRT1560 distance=121' 20056-1742 RST3247 distance=122' 20151-1742 RST3251 distance=123' 20032-1815 RST3246 distance=124' 20029-2026 LDS 700 distance=124' 20147-2111 DON 982 distance=125' 20191-1947 BHA 38 distance=125' 20110-1717 KPP 460 distance=127' 20194-1942 ARA1206 distance=128' 20194-1907 H 5 87 distance=128' 20030-2040 DON 975 distance=131' 20178-1803 RST3253 distance=132' 20020-2029 TDT1924 distance=136' 20172-1742 FEN 37 distance=140' 20204-1919 WSP 68AB distance=142' 20204-1919 WSP 68AC distance=142' 20204-1919 WSP 68AD distance=142' 20204-1919 WSP 68AE distance=142' 20103-2147 PRB 8 distance=144' 20155-2128 DON 983 distance=144' 20020-1754 ARU 19 distance=150' 20209-1939 BU 662BC distance=150' 20209-1939 BU 662AB distance=150' 20187-1751 UC 4142 distance=150' 19597-1940 LDS4827 distance=153' 19598-1852 J 1767 distance=154' 20058-1703 FEN 36 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 20104-1923 HDS2873 226 0.1
Show 20093-1925 HU 80 6 2.5 17
Show 20091-1928 TDT2026 198 1.7 20
Show 20102-1954 UC 4110 269 39.9 31
Show 20082-1934 BHA 36 343 3.2 33
Show 20080-1939 KPP1032 302 8.3 39
Show 20071-1905 RST3248 122 0.7 51
Show 20134-1953 ARA1203 238 10.1 52
Show 20097-2022 SEE 409 31 5.1 60
Show 20070-1848 HJ 2928 311 13.5 62
Show 20103-2030 BEU 21 43 0.2 67
Show 20058-1939 DON 978 106 0.5 67
Show 20144-1843 ARA 796 80 12.3 68
Show 20157-1849 HJ 2940 AB 101 35.3 83
Show 20157-1849 HJ 2940 AC 76 20.6 83
Show 20157-1849 ABH 134 AD 103 70.6 83
Show 20157-1849 ABH 134 AE 252 84.5 83
Show 20068-2034 HU 759 296 0.5 87
Show 20106-2055 AHD 14 100 10.2 92
Show 20154-2030 SEE 411 2 2.5 97
Show 20154-1817 RST3252 261 0.6 97
Show 20032-1940 KPP 620 355 5.7 103
Show 20049-2034 BRT1559 268 4.9 105
Show 20186-1942 ARA1204 298 12.8 117
Show 20089-2122 BRT1560 138 4.5 121
Show 20056-1742 RST3247 162 3.8 122
Show 20151-1742 RST3251 263 2.9 123
Show 20032-1815 RST3246 348 1.6 124
Show 20029-2026 LDS 700 129 12.6 124
Show 20147-2111 DON 982 62 5.0 125
Show 20191-1947 BHA 38 102 3.2 125
Show 20110-1717 KPP 460 68 3.9 127
Show 20194-1942 ARA1206 10 11.6 128
Show 20194-1907 H 5 87 180 56.0 128
Show 20030-2040 DON 975 122 0.9 131
Show 20178-1803 RST3253 115 2.5 132
Show 20020-2029 TDT1924 243 0.9 136
Show 20172-1742 FEN 37 64 4.7 140
Show 20204-1919 WSP 68 AB 120 13.1 142
Show 20204-1919 WSP 68 AC 189 21.3 142
Show 20204-1919 WSP 68 AD 310 21.4 142
Show 20204-1919 WSP 68 AE 49 23.1 142
Show 20103-2147 PRB 8 201 999.9 144
Show 20155-2128 DON 983 192 2.0 144
Show 20020-1754 ARU 19 159 0.4 150
Show 20209-1939 BU 662 BC 297 2.2 150
Show 20209-1939 BU 662 AB 4 125.2 150
Show 20187-1751 UC 4142 195 40.8 150
Show 19597-1940 LDS4827 253 15.1 153
Show 19598-1852 J 1767 173 7.6 154
Show 20058-1703 FEN 36 177 3.8 155

 
 
WDS 20104-1923 : COMPONENTS
 
 
  A
B pa=223.9°
sep=0.13"
 
 
20104-1923 A
 
 
Componente originario normalizzato AB Name HD 191434 Coord arcsec 2000 201025.46-192259.4 Mag 7.49
Spectral class G0V (yellow) PmRA -4.00 PmDE -127.0 SAO 163313
HIP 99391 Tycho2 6323-02047-1 HD 191434 GC 27978
BD BD-19 5731
Tycho2
Tycho2 6323-02047-1 Pflag RAmdeg 302.60609923 DEmdeg -19.38343512
PmRA 5.1 PmDE -116.2 E RAmdeg 5 E DEmdeg 6
E pmRA 1.0 E pmDE 1.1 EpRAm 1991.07 EpDEm 1990.98
Num 18 Q RAmdeg 1.2 Q DEmdeg 1.3 Q pmRA 1.2
Q pmDE 1.3 BTmag 7.966 E BTmag 0.017 VTmag 7.347
E VTmag 0.011 Prox 999 TYC T HIP 99391
CCDM AB RAdeg 302.60608667 DEdeg -19.38316472 EpRA 1990 1.78
EpDE 1990 1.61 E RAdeg 4.9 E DEdeg 5.5 Posflg P
Corr -0.1
SAO
SAO 163313 DelFlag RA1950 PmRA1950 0.0016
DE1950 PmDE1950 -0.116 Vmag 7.3 SpType F8
Double code Source 70 CatNum 27978 DM BD-19 5731
DMcomp BDsup HD 191434 M HD 0
GC 27978 RA1950rad 5.26883979 DE1950rad -0.34087057 PmRA2000 0.0017
PmDE2000 -0.117
Hipparcos
Catalog H HIP 99391 Proxy H RAhms 20 10 25.46
DEdms -19 22 59.4 Vmag 7.28 VarFlag R Vmag H
RAdeg 302.606 DEdeg -19.3832 AstroRef * Plx 15.93
CCDM 20104-1923 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 204 Rho 0.209 HD 191434 BD BD-19 5731
CD CP Dm number -19 5731 VIred 0.64
SpType G0V R SpType Coord arcsec 2000 201025.46-192259.4
Hipparcos 2
HIP 99391 Sn 55 So 3 Nc 2
RArad 5.2814725684 DErad -0.3382998194 Plx 16.37 PmRA -3.38
PmDE -126.69 E RArad 0.57 E DErad 0.43 E Plx 0.72
E pmRA 0.66 E pmDE 0.45 Hpmag 7.4062 E Hpmag 0.0012
SHp 0.008 VA 0 BV 0.579 E BV 0.008
VI 0.65
CCDM
Ccdm 20104-1923 RComp Comp A Note1
Note2 Discov num DRAs 1.46 DDEs -0.5
R dRAs 82 Year Theta Rho
Obs 2 Vmag 7.5 Sp G0 PmNote *
PmRA -4 PmDE -127 Dm number -19 5731 Cat1 BD
Name2 163313 Cat2 SAO HD 191434 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 99391
 
 
20104-1923 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 201025.45-192259.5 Mag 10.22 Calc delta mag 2.73
Calc coord yes
CCDM
Ccdm 20104-1923 RComp Comp B Note1
Note2 Discov num HDS DRAs 1.45 DDEs -0.6
R dRAs 82 Year 1991 Theta 204 Rho 0.2
Obs 1 Vmag 10.2 Sp PmNote *
PmRA -4 PmDE -127 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 99391