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Doubles in session


Current system
03193-5053
RST 70
HD 20841


Nearby doubles
20' : 03195-5033
HU 1564

24' : 03218-5051
RST 71

45' : 03237-5036
KPP2274

52' : 03246-5104
HJ 3575AB

65' : 03195-5157
RST2303

66' : 03233-5000
HJ 3573

74' : 03247-5000
RSS 65

74' : 03238-5153
RST2308

76' : 03251-5145
UC 1003

76' : 03271-5039
UC 1008

81' : 03278-5048
WIS 92

82' : 03108-5042
RST5498

92' : 03097-5046
UC 957

98' : 03111-4954
TDS2468

99' : 03188-5231
TDS2521

108' : 03283-4948
RST 74

111' : 03171-4904
LDS 91

118' : 03082-5000
B 1444

123' : 03322-5103
UC 1022

123' : 03194-4850
RST 69

126' : 03168-5256
KPP3515

127' : 03261-4905
TDS2546

129' : 03321-5140
JNN 302

130' : 03173-5301
KPP3516

136' : 03192-5306
HJ 3571

136' : 03321-5155
KPP2807AB



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.

03193-5053 RST 70 (HD 20841)

 
 
03h 19m 17.58s -50° 52' 31.1" P.A. 232.00 sep 0.1 mag 9.00,9.15 Sp F3V dist. 122.55 pc (399.76 l.y.)
 
 
Coord 2000 03193-5053 Discov num RST  70 Comp Coord arcsec 2000 03 19 17.58 -50 52 31.1
Date first 1929 Date last 2021 Obs 19
Pa first 81 Pa last 231.7 P.A. Now (θ) 237°
Sep first 0.2 Sep last 0.123 Sep. Now (ρ) 0.152"
Mag pri 9.00 Mag sec 9.15 delta mag (ΔM) 0.15 Spectral class F3V (yellow-white)
Pri motion ra -028 Sec motion ra
Pri motion dec +019 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 20841 Constellation Horologium SAO 233072 HIP 15451
Tycho2 8065-01243-1 Gaia DR2 4737105630476832128 HD 20841 GC 3997
CD CD-51 768 CP CP-51 392 Distance 122.55 Distance ly 399.76
 
 
ORBITAL ELEMENTS
 
 
Period (P)51.1y± 2.7 Periastron (T)2017.33y± 0.29 Semi-major axis (a)0.176a± 0.025
Eccentricity (e)0.74± 0.08 Inclination (i)52.8°± 7.8 Longitude of periastron (ω)67.8°± 12.9
Node (Ω)44.7°± 19.1 Notes ReferenceTok2019c
Equinox Last observation2018 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 300.5 0.175
2001 303.5 0.170
2002 306.7 0.165
2003 310.1 0.160
2004 313.7 0.154
2005 317.5 0.149
2006 321.7 0.143
2007 326.2 0.138
2008 331.0 0.132
2009 336.4 0.126
2010 342.2 0.120
2011 348.7 0.114
2012 355.9 0.108
2013 4.1 0.101
2014 13.6 0.092
2015 25.4 0.081
2016 41.9 0.065
2017 76.0 0.039
2018 167.1 0.035
2019 205.9 0.067
2020 219.5 0.096
2021 227.3 0.119
2022 232.7 0.137
2023 237.0 0.152
2024 240.5 0.164
2025 243.6 0.175
2026 246.4 0.184
2027 248.9 0.191
2028 251.3 0.197
2029 253.5 0.202
2030 255.6 0.207


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


 
  


wds03193-5053a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 03193-5053 RST 70 (HD 20841) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2019c St j Tokovinin, A., Mason, B.D., Mendez, R.A., Horch, E.P. & Briceno, C. 2019AJ....158...48T
Tok2019c +orb AJ 158, 48, 2019
 
 
DISCOVERER
 
 
idgroup discov author
1 RST Rossiter, R.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03193-5053 RST 70 1991 14 282 0.2 9.00 9.15 F3V 031917.58-505231.1
03193-5053 RST 70 2018 16 198 0.1 9.00 9.15 F3V 031917.58-505231.1
03193-5053 RST 70 2019 17 213 0.1 9.00 9.15 F3V O 031917.58-505231.1
03193-5053 RST 70 2020 18 226 0.1 9.00 9.15 F3V O 031917.58-505231.1
03193-5053 RST 70 2021 19 232 0.1 9.00 9.15 F3V O 031917.58-505231.1

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

 
 
WDS 03193-5053 RST 70 (HD 20841) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 03193-5053 RST 70 (HD 20841) : MEASURES
 
 
No records found.

 
 
WDS 03193-5053 (HD 20841) : VIRTUAL EYEPIECE
 
 

03193-5053 RST 70A mag 9 Sp F3V 03193-5053 RST 70B sep 0.1 P.A. 218.60 mag 9.15 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 03193-5053 (HD 20841) : ALADIN DSS IMAGE @ 03h 19m 17.58s -50° 52' 31.1"
 
 
 
 
WDS 03193-5053 RST 70 (HD 20841) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

03193-5053 RST 70 distance=1' 03195-5033 HU 1564 distance=20' 03218-5051 RST 71 distance=24' 03237-5036 KPP2274 distance=45' 03246-5104 HDS 426Aa,Ab distance=52' 03246-5104 HJ 3575AB distance=52' 03195-5157 RST2303 distance=65' 03233-5000 HJ 3573 distance=66' 03247-5000 RSS 65 distance=74' 03238-5153 RST2308 distance=74' 03251-5145 UC 1003 distance=76' 03271-5039 UC 1008 distance=76' 03278-5048 WIS 92 distance=81' 03108-5042 RST5498 distance=82' 03097-5046 UC 957 distance=92' 03111-4954 TDS2468 distance=98' 03188-5231 TDS2521 distance=99' 03283-4948 RST 74 distance=108' 03171-4904 LDS 91 distance=111' 03082-5000 B 1444 distance=118' 03322-5103 UC 1022 distance=123' 03194-4850 RST 69 distance=123' 03168-5256 KPP3515 distance=126' 03261-4905 TDS2546 distance=127' 03321-5140 JNN 302 distance=129' 03173-5301 KPP3516 distance=130' 03192-5306 HJ 3571 distance=136' 03321-5155 KPP2807AB distance=136' 03050-5121 RST 57 distance=136' 03290-4909 LDS 98 distance=140' 03105-5245 WFC 14 distance=140' 03046-5119 TOK 428Ba,Bb distance=141' 03046-5119 DUN 10AB distance=142' 03046-5119 TOK 428AC distance=142' 03300-4912 BRT 654 distance=144' 03044-5029 UC 939 distance=144' 03151-4831 RST 63 distance=147' 03094-4858 HDS 403 distance=150' 03266-5310 HDS 431 distance=153' 03303-4902 TDS2559 distance=154' 03157-5323 UC 971 distance=154' 03083-5248 UC 955 distance=154' 03212-5326 HU 1565 distance=155' 03356-5100 NSN 182 distance=155' 03362-5113 HJ 3584 distance=161' 03321-4910 RST 77 distance=161' 03158-4815 KPP3513 distance=162' 03022-5115 KPP2809 distance=163' 03353-4952 UC 1027 distance=165' 03055-5246 SPM 8 distance=172' 03028-4941 HU 1563 distance=174' 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 03193-5053 RST 70 232 0.1 1
Show 03195-5033 HU 1564 239 1.5 20
Show 03218-5051 RST 71 125 0.4 24
Show 03237-5036 KPP2274 62 19.1 45
Show 03246-5104 HDS 426 Aa,Ab 64 1.0 52
Show 03246-5104 HJ 3575 AB 49 36.1 52
Show 03195-5157 RST2303 121 1.4 65
Show 03233-5000 HJ 3573 238 14.7 66
Show 03247-5000 RSS 65 103 45.6 74
Show 03238-5153 RST2308 249 2.5 74
Show 03251-5145 UC 1003 180 10.8 76
Show 03271-5039 UC 1008 46 68.3 76
Show 03278-5048 WIS 92 328 971.9 81
Show 03108-5042 RST5498 298 0.8 82
Show 03097-5046 UC 957 265 11.7 92
Show 03111-4954 TDS2468 117 0.8 98
Show 03188-5231 TDS2521 97 0.7 99
Show 03283-4948 RST 74 153 0.7 108
Show 03171-4904 LDS 91 266 7.1 111
Show 03082-5000 B 1444 53 3.0 118
Show 03322-5103 UC 1022 168 6.0 123
Show 03194-4850 RST 69 318 6.7 123
Show 03168-5256 KPP3515 358 3.5 126
Show 03261-4905 TDS2546 187 0.6 127
Show 03321-5140 JNN 302 115 3.2 129
Show 03173-5301 KPP3516 294 1.3 130
Show 03192-5306 HJ 3571 98 21.5 136
Show 03321-5155 KPP2807 AB 42 6.2 136
Show 03050-5121 RST 57 158 2.3 136
Show 03290-4909 LDS 98 260 38.9 140
Show 03105-5245 WFC 14 82 7.4 140
Show 03046-5119 TOK 428 Ba,Bb 277 0.0 141
Show 03046-5119 DUN 10 AB 69 39.9 142
Show 03046-5119 TOK 428 AC 232 510.2 142
Show 03300-4912 BRT 654 86 9.6 144
Show 03044-5029 UC 939 101 6.5 144
Show 03151-4831 RST 63 16 1.3 147
Show 03094-4858 HDS 403 171 19.6 150
Show 03266-5310 HDS 431 358 0.7 153
Show 03303-4902 TDS2559 116 0.4 154
Show 03157-5323 UC 971 115 39.1 154
Show 03083-5248 UC 955 286 57.3 154
Show 03212-5326 HU 1565 100 1.7 155
Show 03356-5100 NSN 182 37 2.2 155
Show 03362-5113 HJ 3584 358 15.8 161
Show 03321-4910 RST 77 346 2.5 161
Show 03158-4815 KPP3513 15 1.6 162
Show 03022-5115 KPP2809 55 2.7 163
Show 03353-4952 UC 1027 114 14.9 165
Show 03055-5246 SPM 8 229 21.8 172
Show 03028-4941 HU 1563 9 2.9 174

 
 
WDS 03193-5053 : COMPONENTS
 
 
  A
B pa=218.6°
sep=0.10"
 
 
03193-5053 A
 
 
Componente originario normalizzato AB Name HD 20841 Coord arcsec 2000 031917.58-505231.1 Mag 9
Spectral class F3V (yellow-white) PmRA -28.00 PmDE 19.0 SAO 233072
HIP 15451 Tycho2 8065-01243-1 HD 20841 GC 3997
CD CD-51 768 CP CP-51 392
Tycho2
Tycho2 8065-01243-1 Pflag RAmdeg 49.82312478 DEmdeg -50.87523918
PmRA -32.1 PmDE 21.8 E RAmdeg 6 E DEmdeg 6
E pmRA 1.2 E pmDE 1.0 EpRAm 1991.05 EpDEm 1990.60
Num 13 Q RAmdeg 1.3 Q DEmdeg 1.3 Q pmRA 1.2
Q pmDE 1.3 BTmag 8.748 E BTmag 0.017 VTmag 8.267
E VTmag 0.012 Prox 999 TYC T HIP 15451
CCDM AB RAdeg 49.82324222 DEdeg -50.87529056 EpRA 1990 1.67
EpDE 1990 1.54 E RAdeg 5.5 E DEdeg 5.9 Posflg P
Corr 0.0
SAO
SAO 233072 DelFlag RA1950 PmRA1950 -0.0055
DE1950 PmDE1950 0.03 Vmag 8.4 SpType F5
Double code Source 70 CatNum 3997 DM CD-51 768
DMcomp BDsup HD 20841 M HD 0
GC 3997 RA1950rad 0.86297005 DE1950rad -0.89109327 PmRA2000 -0.0051
PmDE2000 0.025
Hipparcos
Catalog H HIP 15451 Proxy H RAhms 03 19 17.58
DEdms -50 52 31.1 Vmag 8.22 VarFlag R Vmag H
RAdeg 49.8232 DEdeg -50.8753 AstroRef * Plx 8.48
CCDM 03193-5053 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 278 Rho 0.21 HD 20841 BD
CD CD-51 768 CP CP-51 392 Dm number -51 768 VIred 0.5
SpType F3V R SpType Coord arcsec 2000 031917.58-505231.1
Hipparcos 2
HIP 15451 Sn 55 So 3 Nc 2
RArad 0.8695797603 DErad -0.8879413695 Plx 8.16 PmRA -33.66
PmDE 23.18 E RArad 0.65 E DErad 0.6 E Plx 0.72
E pmRA 0.79 E pmDE 0.77 Hpmag 8.3205 E Hpmag 0.0013
SHp 0.014 VA 0 BV 0.466 E BV 0.014
VI 0.54
CCDM
Ccdm 03193-5053 RComp Comp A Note1
Note2 Discov num DRAs -0.44 DDEs 29.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.8 Sp F5 PmNote *
PmRA -38 PmDE 33 Dm number -51 768 Cat1 CD
Name2 233072 Cat2 SAO HD 20841 M HD
ADS BDS M ADS BDS N IDS IDS 03163S5114A
HIC 15451
 
 
03193-5053 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 031917.57-505231.2 Mag 9.15 Calc delta mag 0.15
Calc coord yes
CCDM
Ccdm 03193-5053 RComp Comp B Note1
Note2 Discov num RST 70 DRAs DDEs
R dRAs Year 1948 Theta 293 Rho 0.2
Obs 4 Vmag 8.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 03163S5114B
HIC 15451