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Doubles in session


Current system
20248-1943
HDS 2919
HD 194169


Nearby doubles
16' : 20242-1956
ARA1208

46' : 20229-2019
TDT2224

46' : 20234-1902
ARA 799

47' : 20224-2014
ARG 38AB

49' : 20274-1909
B 2485

53' : 20270-2023
DON 986

54' : 20219-1909
ARA 797

55' : 20209-1939
BU 662AB

60' : 20268-1851
HU 586

61' : 20289-1928
SHN 245

62' : 20292-1943
GWP2958

63' : 20220-1854
DON1119

67' : 20204-1919
WSP 68AB

71' : 20224-1841
B 479

71' : 20209-2027
ARA1207

77' : 20194-1942
ARA1206

80' : 20221-2052
UC 4159

81' : 20191-1947
BHA 38

83' : 20283-2048
CVR 870

83' : 20305-1955
OCC 190

85' : 20194-1907
H 5 87

86' : 20293-1847
ARA 800

88' : 20186-1942
ARA1204

89' : 20217-2100
BRT1563

89' : 20246-2111
B 1893

97' : 20273-1813
BU 60AB



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.

20248-1943 HDS 2919 (HD 194169)

 
 
20h 24m 46.66s -19° 42' 35.9" P.A. 277.00 sep 0.1 mag 9.93,10.72 Sp K3V dist. 54.53 pc (177.88 l.y.)
 
 
Coord 2000 20248-1943 Discov num HDS2919 Comp Coord arcsec 2000 20 24 46.66 -19 42 35.9
Date first 1991 Date last 2021 Obs 14
Pa first 66 Pa last 276.9 P.A. Now (θ) 320.3°
Sep first 0.4 Sep last 0.091 Sep. Now (ρ) 0.085"
Mag pri 9.93 Mag sec 10.72 delta mag (ΔM) 0.79 Spectral class K3V (yellow-orange)
Pri motion ra +043 Sec motion ra
Pri motion dec -011 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 194169 Constellation Capricornus SAO 163540 HIP 100685
Tycho2 6337-01640-1 Gaia DR2 6860285329861972096 HD 194169 BD BD-20 5925
Distance 54.53 Distance ly 177.88
 
 
ORBITAL ELEMENTS
 
 
Period (P)44.88y± 1.47 Periastron (T)2020.99y± 0.08 Semi-major axis (a)0.265a± 0.003
Eccentricity (e)0.625± 0.009 Inclination (i)53.6°± 1.5 Longitude of periastron (ω)183.5°± 4.4
Node (Ω)74.2°± 1.6 Notes ReferenceTok2021c
Equinox2000 Last observation2021 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 78.3 0.427
2001 79.8 0.423
2002 81.3 0.418
2003 82.8 0.410
2004 84.4 0.401
2005 86.0 0.390
2006 87.8 0.377
2007 89.7 0.363
2008 91.8 0.346
2009 94.1 0.328
2010 96.7 0.307
2011 99.6 0.285
2012 103.2 0.261
2013 107.4 0.234
2014 112.8 0.206
2015 119.9 0.177
2016 130.0 0.147
2017 145.0 0.119
2018 167.9 0.097
2019 198.7 0.090
2020 229.6 0.096
2021 256.5 0.099
2022 285.2 0.090
2023 320.3 0.085
2024 352.8 0.098
2025 14.2 0.126
2026 27.4 0.157
2027 36.2 0.190
2028 42.4 0.220
2029 47.1 0.249
2030 50.9 0.275


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


 
  


wds20248-1943b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 20248-1943 HDS 2919 (HD 194169) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2021c orb - Tokovinin, A. 2021IAUDS.203....1S
Tok2021c Inf. Circ. 203, 1, 2021
 
 
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
20248-1943 HDS2919 1997 3 79 0.4 9.93 10.72 K3V D 202446.66-194235.9
20248-1943 HDS2919 2007 4 92 0.3 9.93 10.72 K3V D 202446.66-194235.9
20248-1943 HDS2919 2013 6 111 0.2 9.93 10.72 K3V 202446.66-194235.9
20248-1943 HDS2919 2014 7 119 0.2 9.93 10.72 K3V 202446.66-194235.9
20248-1943 HDS2919 2015 8 125 0.2 9.93 10.72 K3V 202446.66-194235.9
20248-1943 HDS2919 2017 9 155 0.1 9.93 10.72 K3V O 202446.66-194235.9
20248-1943 HDS2919 2018 10 179 0.1 9.93 10.72 K3V O 202446.66-194235.9
20248-1943 HDS2919 2019 11 215 0.1 9.93 10.72 K3V O 202446.66-194235.9
20248-1943 HDS2919 2020 12 252 0.1 9.93 10.72 K3V O 202446.66-194235.9
20248-1943 HDS2919 2021 14 277 0.1 9.93 10.72 K3V O 202446.66-194235.9

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

 
 
WDS 20248-1943 HDS 2919 (HD 194169) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20248-1943 HDS 2919 (HD 194169) : MEASURES
 
 
No records found.

 
 
WDS 20248-1943 (HD 194169) : VIRTUAL EYEPIECE
 
 

20248-1943 HDS2919A mag 9.93 Sp K3V 20248-1943 HDS2919B sep 0.1 P.A. 277.30 mag 10.72 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 20248-1943 (HD 194169) : ALADIN DSS IMAGE @ 20h 24m 46.66s -19° 42' 35.9"
 
 
 
 
WDS 20248-1943 HDS 2919 (HD 194169) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20248-1943 HDS2919 distance=0' 20242-1956 ARA1208 distance=16' 20229-2019 TDT2224 distance=46' 20234-1902 ARA 799 distance=46' 20224-2014 ARG 38AB distance=47' 20224-2014 ARG 38AC distance=47' 20224-2014 ARG 38BC distance=47' 20274-1909 B 2485 distance=49' 20270-2023 DON 986 distance=53' 20219-1909 ARA 797 distance=54' 20209-1939 BU 662AB distance=55' 20209-1939 BU 662BC distance=55' 20268-1851 HU 586 distance=60' 20289-1928 SHN 245 distance=61' 20292-1943 GWP2958 distance=62' 20220-1854 DON1119 distance=63' 20204-1919 WSP 68AB distance=67' 20204-1919 WSP 68AC distance=67' 20204-1919 WSP 68AD distance=67' 20204-1919 WSP 68AE distance=67' 20224-1841 B 479 distance=71' 20209-2027 ARA1207 distance=71' 20194-1942 ARA1206 distance=77' 20221-2052 UC 4159 distance=80' 20191-1947 BHA 38 distance=81' 20283-2048 CVR 870 distance=83' 20305-1955 OCC 190 distance=83' 20194-1907 H 5 87 distance=85' 20293-1847 ARA 800 distance=86' 20186-1942 ARA1204 distance=88' 20217-2100 BRT1563 distance=89' 20246-2111 B 1893 distance=89' 20273-1813 CHR 184Aa,Ab distance=97' 20273-1813 BU 60AB distance=97' 20273-1813 BU 296AC distance=97' 20210-1819 OCC 824 distance=99' 20299-1835 SHJ 324AB distance=100' 20310-2039 BRT2231 distance=105' 20320-2006 ARA1209 distance=105' 20253-2128 ARA1581 distance=105' 20209-1809 OCC 825 distance=109' 20311-1842 LDS4847 distance=110' 20199-2112 TDT2176 distance=113' 20232-2135 ARA1580 distance=115' 20333-2004 B 492 distance=123' 20289-1749 DOB 13DE distance=126' 20245-2150 ARA1927 distance=128' 20289-1749 BU 61BC distance=128' 20289-1749 SHJ 323AB distance=128' 20289-1749 SHJ 323AD distance=128' 20289-1749 BU 61AC distance=128' 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 20248-1943 HDS2919 277 0.1
Show 20242-1956 ARA1208 307 12.9 16
Show 20229-2019 TDT2224 272 0.4 46
Show 20234-1902 ARA 799 304 6.6 46
Show 20224-2014 ARG 38 AB 295 17.7 47
Show 20224-2014 ARG 38 AC 225 40.2 47
Show 20224-2014 ARG 38 BC 199 38.0 47
Show 20274-1909 B 2485 116 1.8 49
Show 20270-2023 DON 986 127 0.6 53
Show 20219-1909 ARA 797 46 5.1 54
Show 20209-1939 BU 662 AB 4 125.2 55
Show 20209-1939 BU 662 BC 297 2.2 55
Show 20268-1851 HU 586 118 0.6 60
Show 20289-1928 SHN 245 -1 0.1 61
Show 20292-1943 GWP2958 276 49.3 62
Show 20220-1854 DON1119 198 5.1 63
Show 20204-1919 WSP 68 AB 120 13.1 67
Show 20204-1919 WSP 68 AC 189 21.3 67
Show 20204-1919 WSP 68 AD 310 21.4 67
Show 20204-1919 WSP 68 AE 49 23.1 67
Show 20224-1841 B 479 117 2.3 71
Show 20209-2027 ARA1207 237 9.4 71
Show 20194-1942 ARA1206 10 11.6 77
Show 20221-2052 UC 4159 334 6.6 80
Show 20191-1947 BHA 38 102 3.2 81
Show 20283-2048 CVR 870 313 29.2 83
Show 20305-1955 OCC 190 -1 0.1 83
Show 20194-1907 H 5 87 180 56.0 85
Show 20293-1847 ARA 800 112 14.3 86
Show 20186-1942 ARA1204 298 12.8 88
Show 20217-2100 BRT1563 154 6.2 89
Show 20246-2111 B 1893 58 2.3 89
Show 20273-1813 CHR 184 Aa,Ab 50 0.1 97
Show 20273-1813 BU 60 AB 148 3.5 97
Show 20273-1813 BU 296 AC 40 37.9 97
Show 20210-1819 OCC 824 -1 0.1 99
Show 20299-1835 SHJ 324 AB 238 22.0 100
Show 20310-2039 BRT2231 84 3.0 105
Show 20320-2006 ARA1209 278 5.8 105
Show 20253-2128 ARA1581 142 14.9 105
Show 20209-1809 OCC 825 -1 0.1 109
Show 20311-1842 LDS4847 23 2.9 110
Show 20199-2112 TDT2176 224 2.5 113
Show 20232-2135 ARA1580 202 6.6 115
Show 20333-2004 B 492 91 3.1 123
Show 20289-1749 DOB 13 DE 93 53.5 126
Show 20245-2150 ARA1927 196 8.4 128
Show 20289-1749 BU 61 BC 149 53.5 128
Show 20289-1749 SHJ 323 AB 189 1.7 128
Show 20289-1749 SHJ 323 AD 150 258.7 128
Show 20289-1749 BU 61 AC 150 54.6 128

 
 
WDS 20248-1943 : COMPONENTS
 
 
  A
B pa=277.3°
sep=0.09"
 
 
20248-1943 A
 
 
Componente originario normalizzato AB Name HD 194169 Coord arcsec 2000 202446.66-194235.9 Mag 9.93
Spectral class K3V (yellow-orange) PmRA 43.00 PmDE -11.0 SAO 163540
HIP 100685 Tycho2 6337-01640-1 HD 194169 BD BD-20 5925
Tycho2
Tycho2 6337-01640-1 Pflag RAmdeg 306.19457827 DEmdeg -19.70998383
PmRA 49.7 PmDE -15.7 E RAmdeg 15 E DEmdeg 20
E pmRA 1.8 E pmDE 1.8 EpRAm 1990.32 EpDEm 1988.98
Num 8 Q RAmdeg 1.7 Q DEmdeg 0.9 Q pmRA 1.7
Q pmDE 0.9 BTmag 10.623 E BTmag 0.044 VTmag 9.427
E VTmag 0.023 Prox 999 TYC T HIP 100685
CCDM AB RAdeg 306.19445556 DEdeg -19.70994639 EpRA 1990 1.78
EpDE 1990 1.47 E RAdeg 15.4 E DEdeg 21.1 Posflg P
Corr -0.2
SAO
SAO 163540 DelFlag RA1950 PmRA1950 0.0035
DE1950 PmDE1950 -0.008 Vmag 8.9 SpType G5
Double code Source 23 CatNum 8747 DM BD-20 5925
DMcomp BDsup HD 194169 M HD 0
GC RA1950rad 5.33148886 DE1950rad -0.34684438 PmRA2000 0.0036
PmDE2000 -0.009
Hipparcos
Catalog H HIP 100685 Proxy H RAhms 20 24 46.66
DEdms -19 42 35.9 Vmag 9.4 VarFlag R Vmag G
RAdeg 306.194 DEdeg -19.71 AstroRef A Plx 19.46
CCDM 20248-1943 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 66 Rho 0.389 HD 194169 BD BD-20 5925
CD CP Dm number -20 5925 VIred 0.93
SpType K3V R SpType Coord arcsec 2000 202446.66-194235.9
Hipparcos 2
HIP 100685 Sn 15 So 3 Nc 2
RArad 5.3441007353 DErad -0.3440038807 Plx 18.34 PmRA 45.38
PmDE -12.41 E RArad 1.4 E DErad 0.85 E Plx 1.69
E pmRA 1.99 E pmDE 1.45 Hpmag 9.5005 E Hpmag 0.0026
SHp 0.019 VA 0 BV 0.94 E BV 0.015
VI 0.98
CCDM
Ccdm 20248-1943 RComp Comp A Note1
Note2 Discov num DRAs -1.30 DDEs 24.0
R dRAs 82 Year Theta Rho
Obs 2 Vmag 9.9 Sp K3 PmNote *
PmRA 43 PmDE -11 Dm number -20 5925 Cat1 BD
Name2 163540 Cat2 SAO HD 194169 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 100685
 
 
20248-1943 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202446.65-194235.9 Mag 10.72 Calc delta mag 0.79
Calc coord yes
CCDM
Ccdm 20248-1943 RComp Comp B Note1
Note2 Discov num HDS DRAs -1.29 DDEs 24.2
R dRAs 82 Year 1991 Theta 66 Rho 0.4
Obs 1 Vmag 10.7 Sp PmNote *
PmRA 43 PmDE -11 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 100685