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Doubles in session


Current system
01108+6747
HDS 155


Nearby doubles
24' : 01083+6729
HU 1021AB

43' : 01172+6810
HJ 1075

47' : 01189+6756
TDS1839

52' : 01066+6833
HDS 142

55' : 01149+6658
LDS3247

57' : 01151+6656
LDS3249

57' : 01207+6752
MLR 294

60' : 01107+6847
H 4 16

63' : 01167+6841
HU 1025AB

65' : 00599+6732
TDS1709

68' : 01003+6717
HJ 1061

70' : 01180+6844
LDS3259

70' : 01023+6838
TDS1736

73' : 00587+6726
HU 1019

73' : 00581+6742
BLL 2AB

76' : 01237+6806
SKF 978AB

86' : 01198+6856
MLR 293

88' : 01259+6808
BU 1101AB

89' : 00568+6828
MLR 290

94' : 01256+6830
TDS1874

94' : 01274+6751
LDS3281

94' : 01269+6814
LDS3280

98' : 01030+6914
LAF 24AB

99' : 01280+6733
HU 1028

101' : 00548+6831
KPP2614

101' : 00561+6653
SKF2560



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.

01108+6747 HDS 155

 
 
01h 10m 50.74s +67° 46' 48.2" P.A. 170.40 sep 0.1 mag 7.22,7.68 Sp G0IV+G0IV dist. 54.64 pc (178.24 l.y.)
 
 
Coord 2000
01108+6747
 Discov num
HDS 155
 Comp
Coord arcsec 2000
01 10 50.74 +67 46 48.2
Date first
1991
 Date last
2013
 Obs
27
Pa first
165
 Pa last
174
 P.A. Now (θ)
170.4°
Sep first
0.1
 Sep last
0.1
 Sep. Now (ρ)
0.13"
Mag pri
7.22
 Mag sec
7.68
 delta mag (ΔM)
0.46
 Spectral class
G0IV+G0IV (yellow/yellow)
Pri motion ra
+250
 Sec motion ra
Pri motion dec
+024
 Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
174
 Precise sep
0.133
 Constellation
Hydra
 SAO
11614
HIP
5531
 Tycho2
4296-01443-1
 Gaia DR2
526537396786294784
 HD
6840
BD
BD+67 98
 Distance
54.64
 Distance ly
178.24
 last precise pa
174
last precise sep
0.133
 
 
ORBITAL ELEMENTS
 
 
Period (P)7.453y Periastron (T)1995.5y Semi-major axis (a)0.083a
Eccentricity (e)0.744 Inclination (i)52° Longitude of periastron (ω)215°
Node (Ω)151.8° Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.118 182.0
2001 0.091 194.4
2002 0.052 222.5
2003 0.016 16.0
2004 0.086 148.8
2005 0.121 161.3
2006 0.132 169.7
2007 0.126 177.8
2008 0.105 188.0
2009 0.071 205.8
2010 0.031 270.6
2011 0.057 136.5
2012 0.109 156.6
2013 0.129 166.1
2014 0.130 174.0
2015 0.116 182.9
2016 0.088 196.0
2017 0.048 227.7
2018 0.017 68.3
2019 0.091 150.4
2020 0.123 162.2
2021 0.132 170.4
2022 0.124 178.6
2023 0.103 189.2
2024 0.067 208.5
2025 0.029 284.9
2026 0.064 140.0
2027 0.112 157.7
2028 0.130 166.8
2029 0.129 174.8
2030 0.114 183.9


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


 
  


wds01108%2B6747b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
01108+6747 HDS 155 2007 11 184 0.1 7.22 7.68 G0 D 011050.36+674648.1
01108+6747 HDS 155 2008 20 199 0.1 7.22 7.68 G0IV G0IV D 011050.36+674648.1
01108+6747 HDS 155 2009 21 243 0.0 7.22 7.68 G0IV G0IV D 011050.36+674648.1
01108+6747 HDS 155 2012 22 165 0.1 7.22 7.68 G0IV G0IV NOD 011050.36+674648.1
01108+6747 HDS 155 2013 26 174 0.1 7.22 7.68 G0IV+G0IV NO 011050.74+674648.2

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