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Doubles in session


Current system
20073-5127
RST 1059
HD 190444


Nearby doubles
30' : 20047-5144
I 1604

33' : 20071-5055
BRT1104

48' : 20053-5043
UC 4079

50' : 20097-5212
CPO 615

55' : 20045-5214
RST1056

55' : 20096-5038
RST1062

61' : 20093-5029
RST1061

65' : 20095-5026
HU 1612

69' : 20029-5222
TDT1935

79' : 19590-5121
RST1053

80' : 20135-5222
B 2884

82' : 19590-5106
I 1407

83' : 20151-5048
RSS 544

86' : 20127-5019
HJ 5174

88' : 20124-5014
I 1046

89' : 19583-5154
DUN 229AB

93' : 20139-5019
HU 1613

93' : 20022-5246
UC 4069

96' : 20026-5003
HDS2857

98' : 20025-5253
HDS2856

98' : 19587-5034
B 983

104' : 20142-5007
VSP 55

104' : 19563-5118
SKF1094

108' : 20165-5233
HU 1614

109' : 20164-5236
UC 4132

111' : 20176-5034
HDS2896



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.

20073-5127 RST 1059 (HD 190444)

 
 
20h 07m 19.23s -51° 27' 01.3" P.A. 243.00 sep 0.1 mag 8.89,9.03 Sp F2IV dist. 274.73 pc (896.17 l.y.)
 
 
Coord 2000 20073-5127 Discov num RST1059 Comp Coord arcsec 2000 20 07 19.23 -51 27 01.3
Date first 1930 Date last 2021 Obs 14
Pa first 32 Pa last 242.7 P.A. Now (θ) 242.7°
Sep first 0.2 Sep last 0.126 Sep. Now (ρ) 0.126"
Mag pri 8.89 Mag sec 9.03 delta mag (ΔM) 0.14 Spectral class F2IV (yellow-white)
Pri motion ra +015 Sec motion ra
Pri motion dec -019 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 190444 Constellation Telescopium SAO 246442 HIP 99114
Tycho2 8404-00697-1 Gaia DR2 6666203935371587456 HD 190444 CD CD-5112382
CP CP-5111420 Distance 274.73 Distance ly 896.17
 
 
ORBITAL ELEMENTS
 
 
Period (P)155y± 24 Periastron (T)2016.8y± 6.5 Semi-major axis (a)0.175a± 0.011
Eccentricity (e)0.294± 0.048 Inclination (i)32.6°± 6.5 Longitude of periastron (ω)154°± 59
Node (Ω)77°± 27 Notes ReferenceMdz2017
Equinox2000 Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 163.1 0.121
2001 167.1 0.119
2002 171.1 0.118
2003 175.3 0.116
2004 179.6 0.115
2005 183.9 0.115
2006 188.3 0.114
2007 192.7 0.114
2008 197.2 0.114
2009 201.6 0.114
2010 206.0 0.114
2011 210.4 0.115
2012 214.7 0.115
2013 219.0 0.116
2014 223.2 0.117
2015 227.4 0.118
2016 231.5 0.119
2017 235.5 0.120
2018 239.4 0.121
2019 243.2 0.123
2020 247.0 0.124
2021 250.7 0.125
2022 254.4 0.126
2023 258.0 0.127
2024 261.5 0.128
2025 265.0 0.128
2026 268.4 0.129
2027 271.9 0.130
2028 275.2 0.131
2029 278.6 0.131
2030 281.9 0.132


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


 
  


wds20073-5127e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 20073-5127 RST 1059 (HD 190444) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Mdz2017 orb - Mendez, R.A., Claveria, R.M., Orchard, M.E., & Silva, J.F. 2017AJ....154..187M
Mdz2017 AJ 154, 187, 2017
 
 
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
20073-5127 RST1059 1991 8 132 0.1 8.89 9.03 F2IV 200719.23-512701.3
20073-5127 RST1059 2008 9 191 0.1 8.89 9.03 F2IV 200719.23-512701.3
20073-5127 RST1059 2015 10 220 0.1 8.89 9.03 F2IV 200719.23-512701.3
20073-5127 RST1059 2017 11 227 0.1 8.89 9.03 F2IV 200719.23-512701.3
20073-5127 RST1059 2018 12 233 0.1 8.89 9.03 F2IV 200719.23-512701.3
20073-5127 RST1059 2019 13 236 0.1 8.89 9.03 F2IV 200719.23-512701.3
20073-5127 RST1059 2021 14 243 0.1 8.89 9.03 F2IV 200719.23-512701.3

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

 
 
WDS 20073-5127 RST 1059 (HD 190444) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20073-5127 RST 1059 (HD 190444) : MEASURES
 
 
No records found.

 
 
WDS 20073-5127 (HD 190444) : VIRTUAL EYEPIECE
 
 

20073-5127 RST1059A mag 8.89 Sp F2IV 20073-5127 RST1059B sep 0.1 P.A. 230.40 mag 9.03 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 20073-5127 (HD 190444) : ALADIN DSS IMAGE @ 20h 07m 19.23s -51° 27' 01.3"
 
 
 
 
WDS 20073-5127 RST 1059 (HD 190444) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20073-5127 RST1059 distance=0' 20047-5144 I 1604 distance=30' 20071-5055 BRT1104 distance=33' 20053-5043 UC 4079 distance=48' 20097-5212 CPO 615 distance=50' 20045-5214 RST1056 distance=55' 20096-5038 RST1062 distance=55' 20093-5029 RST1061 distance=61' 20095-5026 HU 1612 distance=65' 20029-5222 TDT1935 distance=69' 19590-5121 RST1053 distance=79' 20135-5222 B 2884 distance=80' 19590-5106 I 1407 distance=82' 20151-5048 RSS 544 distance=83' 20127-5019 HJ 5174 distance=86' 20124-5014 I 1046 distance=88' 19590-5208 HU 1610DE distance=88' 19583-5154 DUN 229AB distance=89' 20139-5019 HU 1613 distance=93' 20022-5246 UC 4069 distance=93' 20026-5003 HDS2857 distance=96' 20025-5253 HDS2856 distance=98' 19587-5034 B 983 distance=98' 20142-5007 VSP 55 distance=104' 19563-5118 SKF1094 distance=104' 20165-5233 HU 1614 distance=108' 20164-5236 UC 4132 distance=109' 20176-5034 HDS2896 distance=111' 19596-4958 CPO9292 distance=116' 19550-5149 FIN 31 distance=117' 20108-5321 TDT2054 distance=119' 19547-5204 BRT2102 distance=124' 20022-5324 UC 4070 distance=126' 19544-5211 RST1051 distance=128' 20075-5337 UC 4091 distance=130' 20212-5147 HDS2907 distance=131' 20100-4914 KPP1803 distance=136' 19563-5258 KPP3104BC distance=137' 19537-5038 TSN 32 distance=138' 20135-5336 RST1063 distance=142' 19522-5115 I 1625AB distance=142' 19522-5115 HJ 5150AC distance=142' 19539-5012 RST1050 distance=149' 19538-5009 HDS2835 distance=150' 20091-4856 RST1060 distance=153' 20080-5400 UC 4094 distance=153' 20236-5111 I 1417 distance=154' 20232-5047 RST1068 distance=155' 20044-5400 B 462 distance=156' 20192-5320 HDS2904 distance=157' 20191-4937 RST1065 distance=157' 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 20073-5127 RST1059 243 0.1
Show 20047-5144 I 1604 204 1.1 30
Show 20071-5055 BRT1104 219 3.7 33
Show 20053-5043 UC 4079 78 11.2 48
Show 20097-5212 CPO 615 247 6.9 50
Show 20045-5214 RST1056 321 2.3 55
Show 20096-5038 RST1062 351 0.4 55
Show 20093-5029 RST1061 282 1.2 61
Show 20095-5026 HU 1612 63 1.0 65
Show 20029-5222 TDT1935 76 0.7 69
Show 19590-5121 RST1053 202 0.6 79
Show 20135-5222 B 2884 334 8.1 80
Show 19590-5106 I 1407 119 5.7 82
Show 20151-5048 RSS 544 167 17.6 83
Show 20127-5019 HJ 5174 266 18.8 86
Show 20124-5014 I 1046 51 1.2 88
Show 19590-5208 HU 1610 DE 152 1.9 88
Show 19583-5154 DUN 229 AB 242 80.9 89
Show 20139-5019 HU 1613 142 0.7 93
Show 20022-5246 UC 4069 90 40.1 93
Show 20026-5003 HDS2857 6 18.0 96
Show 20025-5253 HDS2856 90 0.6 98
Show 19587-5034 B 983 330 1.2 98
Show 20142-5007 VSP 55 96 0.1 104
Show 19563-5118 SKF1094 3 10.8 104
Show 20165-5233 HU 1614 64 1.3 108
Show 20164-5236 UC 4132 173 13.8 109
Show 20176-5034 HDS2896 70 12.8 111
Show 19596-4958 CPO9292 300 4.3 116
Show 19550-5149 FIN 31 49 2.1 117
Show 20108-5321 TDT2054 352 0.5 119
Show 19547-5204 BRT2102 157 3.1 124
Show 20022-5324 UC 4070 345 43.6 126
Show 19544-5211 RST1051 297 0.6 128
Show 20075-5337 UC 4091 356 19.4 130
Show 20212-5147 HDS2907 35 0.3 131
Show 20100-4914 KPP1803 353 14.0 136
Show 19563-5258 KPP3104 BC 126 4.9 137
Show 19537-5038 TSN 32 189 82.4 138
Show 20135-5336 RST1063 178 6.0 142
Show 19522-5115 I 1625 AB 250 12.8 142
Show 19522-5115 HJ 5150 AC 254 27.8 142
Show 19539-5012 RST1050 214 0.5 149
Show 19538-5009 HDS2835 23 0.2 150
Show 20091-4856 RST1060 151 0.2 153
Show 20080-5400 UC 4094 341 32.4 153
Show 20236-5111 I 1417 312 0.8 154
Show 20232-5047 RST1068 203 0.3 155
Show 20044-5400 B 462 23 1.8 156
Show 20192-5320 HDS2904 157 26.8 157
Show 20191-4937 RST1065 69 1.3 157

 
 
WDS 20073-5127 : COMPONENTS
 
 
  A
B pa=230.4°
sep=0.09"
 
 
20073-5127 A
 
 
Componente originario normalizzato AB Name HD 190444 Coord arcsec 2000 200719.23-512701.3 Mag 8.89
Spectral class F2IV (yellow-white) PmRA 15.00 PmDE -19.0 SAO 246442
HIP 99114 Tycho2 8404-00697-1 HD 190444 CD CD-5112382
CP CP-5111420
Tycho2
Tycho2 8404-00697-1 Pflag RAmdeg 301.83017027 DEmdeg -51.45038923
PmRA 11.5 PmDE -10.7 E RAmdeg 6 E DEmdeg 7
E pmRA 1.0 E pmDE 1.0 EpRAm 1990.84 EpDEm 1990.31
Num 10 Q RAmdeg 1.2 Q DEmdeg 0.7 Q pmRA 1.2
Q pmDE 0.8 BTmag 8.473 E BTmag 0.016 VTmag 8.148
E VTmag 0.013 Prox 999 TYC T HIP 99114
CCDM AS RAdeg 301.83012750 DEdeg -51.45036389 EpRA 1990 1.69
EpDE 1990 1.48 E RAdeg 5.6 E DEdeg 6.8 Posflg P
Corr 0.2
SAO
SAO 246442 DelFlag RA1950 PmRA1950 0.0035
DE1950 PmDE1950 -0.016 Vmag 8.2 SpType A5
Double code Source 48 CatNum 18604 DM CP-5111420
DMcomp BDsup HD 190444 M HD 0
GC RA1950rad 5.25152559 DE1950rad -0.90050539 PmRA2000 0.0032
PmDE2000 -0.02
Hipparcos
Catalog H HIP 99114 Proxy H RAhms 20 07 19.23
DEdms -51 27 01.3 Vmag 8.13 VarFlag R Vmag H
RAdeg 301.83 DEdeg -51.4504 AstroRef * Plx 4.04
CCDM 20073-5127 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AS
Theta 134 Rho 0.151 HD 190444 BD
CD CD-5112382 CP CP-5111420 Dm number -5112382 VIred 0.33
SpType F2IV R SpType Coord arcsec 2000 200719.23-512701.3
Hipparcos 2
HIP 99114 Sn 55 So 3 Nc 2
RArad 5.2679293548 DErad -0.897978261 Plx 3.64 PmRA 15.88
PmDE -12.51 E RArad 0.95 E DErad 0.57 E Plx 1.02
E pmRA 1.33 E pmDE 0.98 Hpmag 8.2038 E Hpmag 0.0018
SHp 0.014 VA 0 BV 0.299 E BV 0.015
VI 0.34
CCDM
Ccdm 20073-5127 RComp Comp A Note1
Note2 Discov num DRAs 1.40 DDEs -1.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.1 Sp A5 PmNote *
PmRA 33 PmDE -16 Dm number -5112382 Cat1 CD
Name2 246442 Cat2 SAO HD 190444 M HD
ADS BDS M ADS BDS N IDS IDS 19598S5144A
HIC 99114
 
 
20073-5127 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 200719.22-512701.4 Mag 9.03 Calc delta mag 0.14
Calc coord yes
CCDM
Ccdm 20073-5127 RComp Comp B Note1
Note2 Discov num RST1059 DRAs DDEs
R dRAs Year 1930 Theta 034 Rho 0.2
Obs 2 Vmag 9.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 19598S5144B
HIC 99114