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Current system
08251-4910
RST 321
HD 71386


Nearby doubles
19' : 08261-4855
RST 322

30' : 08271-4847
CPO 207

35' : 08260-4836
TDS5823

48' : 08225-4829
I 67

58' : 08236-4814
RST5296

59' : 08269-4814
RST 325

60' : 08200-4942
B 2176

63' : 08227-4812
SEE 99AB

69' : 08271-4804
RST 326

69' : 08269-4803
DAM1409

70' : 08289-4811
RST 329

75' : 08276-5020
HJ 4101

75' : 08191-4824
RST5292

78' : 08330-4917
COO 73AB

79' : 08184-4828
TDS5693

79' : 08330-4858
CPO 211

83' : 08191-4812
HJ 4081

84' : 08291-4756
HJ 4104AB

86' : 08253-4744
TDS5814

86' : 08211-4753
TDS5751

89' : 08191-5016
HJ 4082

91' : 08164-4840
BRT 734

92' : 08339-4938
RST4893

93' : 08226-4740
TDS5774

94' : 08166-4954
RST5291

94' : 08226-4739
CPO 202



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.

08251-4910 RST 321 (HD 71386)

 
 
08h 25m 04.14s -49° 09' 35.0" P.A. 291.00 sep 0.3 mag 8.27,8.94 Sp K0 dist. 33.38 pc (108.89 l.y.)
 
 
Coord 2000 08251-4910 Discov num RST 321 Comp Coord arcsec 2000 08 25 04.14 -49 09 35.0
Date first 1928 Date last 2023 Obs 51
Pa first 105 Pa last 290.9 P.A. Now (θ) 321.2°
Sep first 0.2 Sep last 0.268 Sep. Now (ρ) 0.246"
Mag pri 8.27 Mag sec 8.94 delta mag (ΔM) 0.67 Spectral class K0 (yellow-orange)
Pri motion ra +071 Sec motion ra
Pri motion dec -106 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 71386 Constellation Vela SAO 219900 HIP 41261
Tycho2 8157-01522-1 Gaia DR2 5515295666620325504 HD 71386 CD CD-48 3774
CP CP-48 1667 Distance 33.38 Distance ly 108.89
 
 
ORBITAL ELEMENTS
 
 
Period (P)25.78y± 0.41 Periastron (T)2000.85y± 0.15 Semi-major axis (a)0.31a± 0.004
Eccentricity (e)0.219± 0.005 Inclination (i)40.9°± 0.7 Longitude of periastron (ω)232.1°± 4.1
Node (Ω)128.6°± 0.8 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 334.9 0.228
2001 356.3 0.204
2002 22.2 0.189
2003 49.5 0.195
2004 72.9 0.220
2005 90.7 0.253
2006 104.4 0.286
2007 115.4 0.314
2008 124.8 0.334
2009 133.3 0.347
2010 141.3 0.353
2011 149.3 0.352
2012 157.4 0.345
2013 166.0 0.334
2014 175.2 0.320
2015 185.4 0.304
2016 196.7 0.289
2017 209.1 0.276
2018 222.5 0.268
2019 236.6 0.264
2020 250.8 0.264
2021 264.9 0.267
2022 278.6 0.270
2023 292.1 0.270
2024 306.0 0.262
2025 321.2 0.246
2026 339.2 0.223
2027 1.6 0.199
2028 28.3 0.189
2029 55.1 0.199
2030 77.2 0.227
2031 94.0 0.260
2032 107.0 0.293
2033 117.5 0.319
2034 126.7 0.338
2035 135.1 0.349
2036 143.1 0.353
2037 151.0 0.351
2038 159.2 0.343
2039 167.9 0.331
2040 177.4 0.316
2041 187.8 0.301
2042 199.3 0.286
2043 212.0 0.274
2044 225.5 0.266
2045 239.7 0.263
2046 253.9 0.265
2047 267.9 0.268
2048 281.5 0.271
2049 295.1 0.269
2050 309.2 0.260


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds08251-4910c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic