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Current system
20290+0710
A 610
HD 195090


Nearby doubles
21' : 20300+0655
LDS4845

26' : 20301+0730
LDS4846

26' : 20300+0730
NSN 733

31' : 20278+0734
GWP2954

35' : 20314+0701
J 3221

36' : 20284+0746
BRT2186

42' : 20276+0745
J 1297

51' : 20264+0741
UC 4183

52' : 20309+0626
DAE 10AB

54' : 20321+0737
UC 4206

56' : 20254+0700
UC 4176

57' : 20327+0656
HDS2934

57' : 20277+0803
HJ 2966

62' : 20329+0647
UC 4213

63' : 20251+0728
UC 4173

63' : 20264+0620
GWP2946

72' : 20264+0810
GWP2947AB

72' : 20256+0801
LDS4842

83' : 20256+0604
UC 4177

84' : 20258+0818
UC 4178

84' : 20269+0826
LDS4843

84' : 20345+0653
BU 1208

85' : 20271+0551
HJ 2963

89' : 20262+0827
UC 4180

91' : 20292+0840
GWP2959

95' : 20339+0811
HEI 585



Selections
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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.

20290+0710 A 610 (HD 195090)

 
 
20h 29m 02.58s +07° 09' 29.3" P.A. 99.00 sep 0.6 mag 9.52,9.91 Sp G4.4V+G2V dist. 78.12 pc (254.83 l.y.)
 
 
Coord 2000 20290+0710 Discov num A   610 Comp Coord arcsec 2000 20 29 02.58 +07 09 29.3
Date first 1901 Date last 2021 Obs 88
Pa first 189 Pa last 99 P.A. Now (θ) 101.7°
Sep first 0.5 Sep last 0.555 Sep. Now (ρ) 0.463"
Mag pri 9.52 Mag sec 9.91 delta mag (ΔM) 0.39 Spectral class G4.4V+G2V (yellow/yellow)
Pri motion ra -050 Sec motion ra
Pri motion dec -002 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 195090 Constellation Delphinus SAO 125855 HIP 101046
Tycho2 0509-01364-1 HD 195090 ADS 13894 BD BD+06 4543
Distance 78.12 Distance ly 254.83
 
 
ORBITAL ELEMENTS
 
 
Period (P)170.62y Periastron (T)1984.25y Semi-major axis (a)0.472a
Eccentricity (e)0.232 Inclination (i)30.3° Longitude of periastron (ω)285.2°
Node (Ω)72° Notesn ReferenceCot2002
Equinox Last observation2000 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 52.1 0.383
2001 54.7 0.388
2002 57.3 0.393
2003 59.8 0.398
2004 62.3 0.403
2005 64.7 0.407
2006 67.1 0.412
2007 69.4 0.416
2008 71.6 0.420
2009 73.8 0.424
2010 76.0 0.428
2011 78.1 0.432
2012 80.2 0.435
2013 82.3 0.438
2014 84.4 0.441
2015 86.4 0.444
2016 88.4 0.447
2017 90.3 0.450
2018 92.3 0.452
2019 94.2 0.455
2020 96.1 0.457
2021 98.0 0.459
2022 99.8 0.461
2023 101.7 0.463
2024 103.5 0.464
2025 105.3 0.466
2026 107.2 0.467
2027 109.0 0.469
2028 110.8 0.470
2029 112.5 0.471
2030 114.3 0.473


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


 
  


wds20290%2B0710a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 20290+0710 A 610 (HD 195090) : NOTES
 
 
discov_num notes refcode
A 610 Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 1.72 +/- 1.14, 2.01, and 1.05 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Cot2002 orb - Costado, M.T. 2002IAUDS.147....1C
Cot2002 Inf. Circ. 147, 1, 2002
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20290+0710 A 610 2002 77 58 0.3 9.52 9.91 G0 NOD 202902.58+070929.3
20290+0710 A 610 2006 78 69 0.4 9.52 9.91 G0 NOD 202902.58+070929.3
20290+0710 A 610 2007 79 70 0.4 9.52 9.91 G0 NOD 202902.58+070929.3
20290+0710 A 610 2015 80 87 0.5 9.52 9.91 G0 NO 202902.58+070929.3
20290+0710 A 610 2017 81 91 0.5 9.52 9.91 G0 NO 202902.58+070929.3
20290+0710 A 610 2018 82 93 0.5 9.52 9.91 G0 NO 202902.58+070929.3
20290+0710 A 610 2021 88 99 0.6 9.52 9.91 G4.4V+G2V NO 202902.58+070929.3

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

 
 
WDS 20290+0710 A 610 (HD 195090) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20290+0710 A 610 (HD 195090) : MEASURES
 
 
No records found.

 
 
WDS 20290+0710 (HD 195090) : VIRTUAL EYEPIECE
 
 

20290+0710 A 610A mag 9.52 Sp G4.4V 20290+0710 A 610B sep 0.6 P.A. 99.10 mag 9.91 Sp G2V 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 20290+0710 (HD 195090) : ALADIN DSS IMAGE @ 20h 29m 02.58s +07° 09' 29.3"
 
 
 
 
WDS 20290+0710 A 610 (HD 195090) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20290+0710 A 610 distance=0' 20300+0655 LDS4845 distance=21' 20301+0730 LDS4846 distance=26' 20300+0730 NSN 733 distance=26' 20278+0734 GWP2954 distance=31' 20314+0701 J 3221 distance=35' 20284+0746 BRT2186 distance=36' 20276+0745 J 1297 distance=42' 20264+0741 UC 4183 distance=51' 20309+0626 DAE 10AB distance=52' 20309+0626 WSP 2AC distance=52' 20309+0626 WSP 2AD distance=52' 20309+0626 WSP 2AE distance=52' 20309+0626 WSP 2AF distance=52' 20321+0737 UC 4206 distance=54' 20254+0700 UC 4176 distance=56' 20327+0656 HDS2934 distance=57' 20277+0803 HJ 2966 distance=57' 20329+0647 UC 4213 distance=62' 20251+0728 UC 4173 distance=63' 20264+0620 GWP2946 distance=63' 20264+0810 GWP2947AB distance=72' 20256+0801 LDS4842 distance=72' 20256+0604 UC 4177 distance=83' 20258+0818 UC 4178 distance=84' 20269+0826 LDS4843 distance=84' 20345+0653 BU 1208 distance=84' 20271+0551 HJ 2963 distance=85' 20262+0827 UC 4180 distance=89' 20292+0840 GWP2959 distance=91' 20339+0811 HEI 585 distance=95' 20346+0615 UC 4218 distance=100' 20358+0711 LEP 170 distance=102' 20230+0803 UC 4163 distance=105' 20316+0530 A 395 distance=108' 20352+0608 HWE 98 distance=111' 20253+0847 NSN 732 distance=112' 20364+0733 GWP2971 distance=113' 20218+0635 TDT2207 distance=114' 20295+0514 UC 4199 distance=117' 20246+0531 BU 664AB distance=120' 20246+0531 FOX9034AC distance=120' 20325+0858 HJ 2976 distance=121' 20312+0513 AG 257 distance=121' 20331+0525 TDT2364 distance=122' 20259+0902 J 3084 distance=123' 20335+0527 STF2696AB distance=123' 20335+0527 STF2696AC distance=123' 20209+0727 UC 4153 distance=124' 20234+0535 WHC 19 distance=125' 20301+0914 GRV 345 distance=126' 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 20290+0710 A 610 99 0.6
Show 20300+0655 LDS4845 27 83.4 21
Show 20301+0730 LDS4846 313 39.4 26
Show 20300+0730 NSN 733 133 39.4 26
Show 20278+0734 GWP2954 290 50.4 31
Show 20314+0701 J 3221 167 3.9 35
Show 20284+0746 BRT2186 173 5.0 36
Show 20276+0745 J 1297 2 1.0 42
Show 20264+0741 UC 4183 195 59.7 51
Show 20309+0626 DAE 10 AB 103 0.7 52
Show 20309+0626 WSP 2 AC 114 11.6 52
Show 20309+0626 WSP 2 AD 183 13.6 52
Show 20309+0626 WSP 2 AE 16 18.5 52
Show 20309+0626 WSP 2 AF 176 19.8 52
Show 20321+0737 UC 4206 33 73.1 54
Show 20254+0700 UC 4176 120 51.9 56
Show 20327+0656 HDS2934 75 1.2 57
Show 20277+0803 HJ 2966 259 3.6 57
Show 20329+0647 UC 4213 204 9.0 62
Show 20251+0728 UC 4173 359 42.9 63
Show 20264+0620 GWP2946 30 25.6 63
Show 20264+0810 GWP2947 AB 43.1 72
Show 20256+0801 LDS4842 218 101.0 72
Show 20256+0604 UC 4177 278 14.3 83
Show 20258+0818 UC 4178 267 86.2 84
Show 20269+0826 LDS4843 167 15.3 84
Show 20345+0653 BU 1208 332 3.1 84
Show 20271+0551 HJ 2963 209 9.5 85
Show 20262+0827 UC 4180 303 9.7 89
Show 20292+0840 GWP2959 280 37.8 91
Show 20339+0811 HEI 585 208 1.3 95
Show 20346+0615 UC 4218 315 75.8 100
Show 20358+0711 LEP 170 297 4.2 102
Show 20230+0803 UC 4163 291 56.4 105
Show 20316+0530 A 395 160 0.7 108
Show 20352+0608 HWE 98 1 58.5 111
Show 20253+0847 NSN 732 235 3.3 112
Show 20364+0733 GWP2971 84 8.6 113
Show 20218+0635 TDT2207 258 0.9 114
Show 20295+0514 UC 4199 240 54.1 117
Show 20246+0531 BU 664 AB 287 9.0 120
Show 20246+0531 FOX9034 AC 89 35.6 120
Show 20325+0858 HJ 2976 266 18.8 121
Show 20312+0513 AG 257 75 1.7 121
Show 20331+0525 TDT2364 126 1.9 122
Show 20259+0902 J 3084 87 6.0 123
Show 20335+0527 STF2696 AB 298 0.5 123
Show 20335+0527 STF2696 AC 348 13.7 123
Show 20209+0727 UC 4153 201 23.7 124
Show 20234+0535 WHC 19 178 2.0 125
Show 20301+0914 GRV 345 215 38.5 126

 
 
WDS 20290+0710 : COMPONENTS
 
 
  A
B pa=99.1°
sep=0.55"
 
 
20290+0710 A
 
 
Componente originario normalizzato AB Name HD 195090 Coord arcsec 2000 202902.58+070929.3 Mag 9.52
Spectral class G4.4V (yellow) PmRA -50.00 PmDE -2.0 SAO 125855
HIP 101046 Tycho2 0509-01364-1 HD 195090 BD BD+06 4543
Tycho2
Tycho2 0509-01364-1 Pflag RAmdeg 307.26061335 DEmdeg 7.15814084
PmRA -60.6 PmDE -15.7 E RAmdeg 10 E DEmdeg 12
E pmRA 1.7 E pmDE 1.6 EpRAm 1990.86 EpDEm 1989.95
Num 9 Q RAmdeg 0.8 Q DEmdeg 1.2 Q pmRA 0.8
Q pmDE 1.2 BTmag 9.632 E BTmag 0.024 VTmag 8.932
E VTmag 0.017 Prox 999 TYC T HIP 101046
CCDM AB RAdeg 307.26075639 DEdeg 7.15817972 EpRA 1990 1.56
EpDE 1990 1.29 E RAdeg 10.1 E DEdeg 12.1 Posflg P
Corr -0.2
SAO
SAO 125855 DelFlag RA1950 PmRA1950 -0.0034
DE1950 PmDE1950 -0.01 Vmag 8.7 SpType G0
Double code Source 32 CatNum 10116 DM BD+06 4543
DMcomp BDsup HD 195090 M HD 0
GC RA1950rad 5.35202455 DE1950rad 0.12201548 PmRA2000 -0.0032
PmDE2000 -0.013
Hipparcos
Catalog H HIP 101046 Proxy H RAhms 20 29 02.58
DEdms +07 09 29.3 Vmag 8.81 VarFlag R Vmag H
RAdeg 307.261 DEdeg 7.15814 AstroRef A Plx 13.35
CCDM 20290+0709 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 22 Rho 0.345 HD 195090 BD BD+06 4543
CD CP Dm number +06 4543 VIred 0.73
SpType G0 R SpType Coord arcsec 2000 202902.58+070929.3
Hipparcos 2
HIP 101046 Sn 15 So 3 Nc 2
RArad 5.362711626 DErad 0.124933182 Plx 12.8 PmRA -59.42
PmDE -16.16 E RArad 1.39 E DErad 1.6 E Plx 1.64
E pmRA 1.94 E pmDE 2.18 Hpmag 8.9446 E Hpmag 0.0018
SHp 0.013 VA 0 BV 0.659 E BV 0.024
VI 0.72
 
 
20290+0710 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202902.62+070929.2 Mag 9.91 Spectral class G2V (yellow)
Calc delta mag 0.39 Calc coord yes