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Current system
11107+3110
HJ 2562


Nearby doubles
8' : 11100+3114
RAO 652

30' : 11087+3124
FAR 60

35' : 11129+3130
HEI 12

44' : 11111+3027
STT 231AB

56' : 11063+3113
TDS7665AB

57' : 11073+3146
CVR 113

60' : 11125+3205
COU 963

66' : 11108+3215
FAR 61

70' : 11118+3218
CVR 115

70' : 11099+3001
CVR1346

75' : 11072+3204
SEI 523

76' : 11162+3136
A 2157

82' : 11054+3157
DAM 70AB

84' : 11158+3202
CBL 334

94' : 11045+3159
COU 962

95' : 11133+3238
SLN 67

99' : 11182+3132
STF1523AB
Alula Australis

110' : 11023+3049
STF1501

114' : 11028+3019
CBL 328AB

116' : 11031+3215
SEI 522

118' : 11061+3251
GMZ 179

119' : 11015+3119
SKF 357

122' : 11058+3254
GMZ 178

129' : 11169+3251
RAO 654

130' : 11073+3311
GMZ 182

132' : 11077+3316
GMZ 183



Selections
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Binary Systems
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Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

11107+3110 HJ 2562

 
 
11h 10m 41.86s +31° 09' 32.7" P.A. 221.00 sep 1.0 mag 10.53,11.40 Sp K5 dist. 54.85 pc (178.92 l.y.)
 
 
Coord 2000 11107+3110 Discov num HJ 2562 Comp Coord arcsec 2000 11 10 41.86 +31 09 32.7
Date first 1831 Date last 2017 Obs 50
Pa first 347 Pa last 221 P.A. Now (θ) 221°
Sep first 1.5 Sep last 1.009 Sep. Now (ρ) 1.009"
Mag pri 10.53 Mag sec 11.40 delta mag (ΔM) 0.87 Spectral class K5 (yellow-orange)
Pri motion ra -088 Sec motion ra -088
Pri motion dec -023 Sec motion dec -023
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ursa Major SAO 62436 HIP 54619 Tycho2 2520-00597-1
Gaia DR2 756958509559756544 ADS 8082 BD BD+31 2238 Distance 54.85
Distance ly 178.92
 
 
ORBITAL ELEMENTS
 
 
Period (P)468.8926y± 249.5266 Periastron (T)1857.7161y± 26.5467 Semi-major axis (a)1.76611a± 0.57719
Eccentricity (e)0.32888± 0.32191 Inclination (i)119.779°± 11.231 Longitude of periastron (ω)123.1°± 41.075
Node (Ω)138.446°± 16.345 Notesn ReferenceIzm2019
Equinox Last observation1996 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 243.7 1.070
2001 242.7 1.069
2002 241.7 1.068
2003 240.8 1.068
2004 239.8 1.068
2005 238.8 1.068
2006 237.8 1.068
2007 236.8 1.068
2008 235.8 1.069
2009 234.9 1.069
2010 233.9 1.070
2011 232.9 1.072
2012 231.9 1.073
2013 230.9 1.075
2014 230.0 1.076
2015 229.0 1.078
2016 228.0 1.081
2017 227.1 1.083
2018 226.1 1.086
2019 225.2 1.089
2020 224.2 1.092
2021 223.3 1.095
2022 222.4 1.098
2023 221.4 1.102
2024 220.5 1.106
2025 219.6 1.109
2026 218.7 1.114
2027 217.8 1.118
2028 216.9 1.122
2029 216.0 1.127
2030 215.1 1.132
2031 214.2 1.137
2032 213.4 1.142
2033 212.5 1.147
2034 211.7 1.153
2035 210.8 1.158
2036 210.0 1.164
2037 209.2 1.170
2038 208.4 1.176
2039 207.5 1.182
2040 206.7 1.189
2041 206.0 1.195
2042 205.2 1.202
2043 204.4 1.208
2044 203.6 1.215
2045 202.9 1.222
2046 202.1 1.229
2047 201.4 1.236
2048 200.7 1.243
2049 199.9 1.251
2050 199.2 1.258


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds11107%2B3110b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic