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Doubles in session


Current system
08243+4457
STF 1217
HD 70516


Nearby doubles
66' : 08304+4455
BRT 99

67' : 08304+4512
CVR1148

68' : 08218+4559
SKF1707

72' : 08292+4546
TOK 517

77' : 08173+4437
TVB 186

77' : 08191+4552
CVR 490

82' : 08189+4556
SLW 234

83' : 08313+4424
BVD 202

83' : 08305+4548
SKF 658

88' : 08303+4557
A 1747

91' : 08223+4625
SLW 246

99' : 08235+4319
SKF 628

101' : 08182+4340
LDS3784

102' : 08254+4316
ES 594

106' : 08156+4408
SKF 605

106' : 08219+4315
A 2364

109' : 08205+4316
CVR 493

111' : 08139+4514
SKF 598

111' : 08236+4648
HJ 1160

112' : 08155+4358
BRT 98

113' : 08346+4434
SKF 684

114' : 08139+4526
SKF1706

115' : 08336+4555
HJ 1161

122' : 08128+4456
SLW 225

124' : 08135+4545
COU2612

124' : 08333+4341
SKF 671



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.

08243+4457 STF 1217 (HD 70516)

 
 
08h 24m 15.65s +44° 56' 59.0" P.A. 242.00 sep 29.1 mag 7.79,9.39 Sp G2V+K2V dist. 37.75 pc (123.14 l.y.)
 
 
Coord 2000 08243+4457 Discov num STF1217 Comp Coord arcsec 2000 08 24 15.65 +44 56 59.0
Date first 1830 Date last 2019 Obs 61
Pa first 241 Pa last 242.3 P.A. Now (θ) 242.3°
Sep first 29.8 Sep last 29.063 Sep. Now (ρ) 29.063"
Mag pri 7.79 Mag sec 9.39 delta mag (ΔM) 1.6 Spectral class G2V+K2V (yellow/yellow-orange)
Pri motion ra -063 Sec motion ra -060
Pri motion dec -178 Sec motion dec -177
Notes N O T (See Notes, Orbital solution, Parallax indicates physical)
rPM=0.017 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 70516 Constellation Lynx SAO 42337 HIP 41184
Tycho2 2980-02124-1 Gaia DR2 917982605923642752 HD 70516 GC 11447
ADS 6783 BD BD+45 1575 Distance 37.75 Distance ly 123.14
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)160c Periastron (T)6845y Semi-major axis (a)21a
Eccentricity (e)0.94 Inclination (i)81° Longitude of periastron (ω)212°
Node (Ω)235° Notesn ReferenceKis2009
Equinox Last observation2005 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 242.2 28.687
2001 242.2 28.683
2002 242.2 28.680
2003 242.2 28.677
2004 242.2 28.674
2005 242.2 28.671
2006 242.2 28.668
2007 242.2 28.665
2008 242.2 28.662
2009 242.2 28.658
2010 242.2 28.655
2011 242.2 28.652
2012 242.2 28.649
2013 242.2 28.646
2014 242.2 28.643
2015 242.2 28.640
2016 242.2 28.636
2017 242.2 28.633
2018 242.2 28.630
2019 242.2 28.627
2020 242.2 28.624
2021 242.2 28.621
2022 242.2 28.618
2023 242.2 28.614
2024 242.2 28.611
2025 242.2 28.608
2026 242.2 28.605
2027 242.2 28.602
2028 242.2 28.599
2029 242.2 28.596
2030 242.2 28.592


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


 
  


wds08243%2B4457a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)160c Periastron (T)7497y Semi-major axis (a)21a
Eccentricity (e)0.87 Inclination (i)84° Longitude of periastron (ω)30°
Node (Ω)58° Notesn ReferenceKis2009
Equinox Last observation2005 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 242.7 28.892
2001 242.7 28.889
2002 242.7 28.886
2003 242.7 28.883
2004 242.7 28.879
2005 242.7 28.876
2006 242.7 28.873
2007 242.7 28.870
2008 242.7 28.867
2009 242.7 28.864
2010 242.7 28.861
2011 242.7 28.858
2012 242.7 28.855
2013 242.7 28.852
2014 242.7 28.849
2015 242.7 28.846
2016 242.7 28.842
2017 242.7 28.839
2018 242.7 28.836
2019 242.7 28.833
2020 242.7 28.830
2021 242.7 28.827
2022 242.7 28.824
2023 242.7 28.821
2024 242.7 28.818
2025 242.7 28.815
2026 242.7 28.812
2027 242.7 28.808
2028 242.7 28.805
2029 242.7 28.802
2030 242.7 28.799


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


 
  


wds08243%2B4457b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic