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Current system
12306+0943
STF 1647
HD 108875


Nearby doubles
7' : 12303+0949
CVR1442

42' : 12278+0935
CBL 595

44' : 12281+0920
A 1090

48' : 12286+1021
TDS8401

52' : 12335+1012
HJ 212

59' : 12335+0901
REU 1

61' : 12342+0917
SLW 735

68' : 12262+0923
GWP1809

69' : 12337+1026
BRT3298

73' : 12312+0831
SLW 731

81' : 12264+0851
CVR1432

81' : 12290+0826
WSI 113

82' : 12358+1009
HEI 512

86' : 12362+0925
KPP2598

89' : 12332+0824
CLZ 56

91' : 12348+0838
SKF1851

97' : 12370+0952
SLW 745

99' : 12241+1004
CVR 653

99' : 12286+1117
UC 2345

103' : 12347+0821
SHN 163

109' : 12236+0912
LDS1304

116' : 12302+0748
SHN 159

119' : 12305+1142
BRT1278

119' : 12375+0843
BRT3218AB

121' : 12260+0804
MCT 6

129' : 12360+1124
STF1661



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Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

12306+0943 STF 1647 (HD 108875)

 
 
12h 30m 33.75s +09° 42' 56.4" P.A. 249.00 sep 1.3 mag 8.09,8.37 Sp F2 dist. 92.51 pc (301.77 l.y.)
 
 
Coord 2000 12306+0943 Discov num STF1647 Comp Coord arcsec 2000 12 30 33.75 +09 42 56.4
Date first 1828 Date last 2024 Obs 284
Pa first 201 Pa last 249.3 P.A. Now (θ) 249.3°
Sep first 1.2 Sep last 1.25 Sep. Now (ρ) 1.25"
Mag pri 8.09 Mag sec 8.37 delta mag (ΔM) 0.28 Spectral class F2 (yellow-white)
Pri motion ra +051 Sec motion ra +051
Pri motion dec -058 Sec motion dec -058
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 108875 Constellation Virgo SAO 119436 HIP 61035
Tycho2 0874-00223-1 Gaia DR2 3903746082287027072 HD 108875 ADS 8575
BD BD+10 2432 Distance 92.51 Distance ly 301.77
 
 
ORBITAL ELEMENTS
 
 
Period (P)1010.6613y± 461.8854 Periastron (T)2101.1215y± 37.8188 Semi-major axis (a)1.96209a± 0.84009
Eccentricity (e)0.637± 0.27204 Inclination (i)66.97°± 9.808 Longitude of periastron (ω)259.437°± 21.707
Node (Ω)78.669°± 14.391 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 244.4 1.334
2001 244.6 1.331
2002 244.8 1.328
2003 245.1 1.325
2004 245.3 1.322
2005 245.5 1.319
2006 245.8 1.316
2007 246.0 1.313
2008 246.2 1.309
2009 246.5 1.306
2010 246.7 1.302
2011 247.0 1.299
2012 247.2 1.295
2013 247.5 1.291
2014 247.7 1.287
2015 248.0 1.283
2016 248.2 1.279
2017 248.5 1.274
2018 248.7 1.270
2019 249.0 1.265
2020 249.2 1.261
2021 249.5 1.256
2022 249.8 1.251
2023 250.0 1.246
2024 250.3 1.241
2025 250.6 1.236
2026 250.8 1.230
2027 251.1 1.225
2028 251.4 1.219
2029 251.7 1.213
2030 252.0 1.207
2031 252.2 1.201
2032 252.5 1.194
2033 252.8 1.188
2034 253.1 1.181
2035 253.4 1.175
2036 253.7 1.168
2037 254.0 1.160
2038 254.3 1.153
2039 254.6 1.146
2040 255.0 1.138
2041 255.3 1.130
2042 255.6 1.122
2043 255.9 1.114
2044 256.3 1.105
2045 256.6 1.097
2046 257.0 1.088
2047 257.3 1.079
2048 257.7 1.070
2049 258.0 1.060
2050 258.4 1.051


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds12306%2B0943b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic