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Doubles in session


Current system
14380+5135
STF 1863
HD 128941


Nearby doubles
16' : 14397+5119
DOO 9

25' : 14395+5154
LDS4487

36' : 14416+5124
STF1871

38' : 14365+5210
UC 2799

40' : 14372+5214
MLR 682

44' : 14342+5200
CBL 59

51' : 14340+5101
CLZ 64

52' : 14351+5218
AZC 171

54' : 14434+5155
SKF1640

72' : 14413+5239
A 1623

76' : 14353+5024
WIS 264

93' : 14479+5133
CVR1601

98' : 14471+5047
KPP3936

100' : 14316+5016
BEM 13

101' : 14276+5204
CBL 58

105' : 14413+5314
SHN 192

107' : 14415+4953
TDS9271

109' : 14495+5122
STF1889AB

109' : 14305+5013
BEM 12

110' : 14462+5017
ES 773

115' : 14450+5309
RAO 589

116' : 14267+5224
CVR1582

119' : 14448+4956
LDS4503

121' : 14252+5151
STT 580
Asellus primus

130' : 14519+5147
LDS4513

130' : 14407+4928
BEM9013



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.

14380+5135 STF 1863 (HD 128941)

 
 
14h 38m 00.71s +51° 34' 42.1" P.A. 59.00 sep 0.7 mag 7.71,7.80 Sp F4V dist. 82.17 pc (268.04 l.y.)
 
 
Coord 2000 14380+5135 Discov num STF1863 Comp Coord arcsec 2000 14 38 00.71 +51 34 42.1
Date first 1830 Date last 2023 Obs 213
Pa first 110 Pa last 59.2 P.A. Now (θ) 58.2°
Sep first 0.7 Sep last 0.67 Sep. Now (ρ) 0.62"
Mag pri 7.71 Mag sec 7.80 delta mag (ΔM) 0.09 Spectral class F4V (yellow-white)
Pri motion ra -056 Sec motion ra -056
Pri motion dec +007 Sec motion dec +007
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 128941 Constellation Bootes SAO 29224 HIP 71548
Tycho2 3479-00568-1 Gaia DR2 1604285772431915648 HD 128941 GC 19734
ADS 9329 BD BD+52 1816 Distance 82.17 Distance ly 268.04
 
 
ORBITAL ELEMENTS
 
 
Period (P)538y Periastron (T)1774.3y Semi-major axis (a)1.08a
Eccentricity (e)0.91 Inclination (i)108.2° Longitude of periastron (ω)269°
Node (Ω)140.2° Notes ReferenceZir2013a
Equinox2000 Last observation2010 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 63.8 0.650
2001 63.6 0.650
2002 63.3 0.650
2003 63.1 0.650
2004 62.9 0.650
2005 62.6 0.650
2006 62.4 0.649
2007 62.2 0.649
2008 61.9 0.649
2009 61.7 0.649
2010 61.4 0.649
2011 61.2 0.649
2012 61.0 0.649
2013 60.7 0.649
2014 60.5 0.649
2015 60.2 0.649
2016 60.0 0.649
2017 59.8 0.648
2018 59.5 0.648
2019 59.3 0.648
2020 59.0 0.648
2021 58.8 0.648
2022 58.5 0.648
2023 58.3 0.648
2024 58.1 0.648
2025 57.8 0.648
2026 57.6 0.647
2027 57.3 0.647
2028 57.1 0.647
2029 56.9 0.647
2030 56.6 0.647
2031 56.4 0.647
2032 56.1 0.647
2033 55.9 0.647
2034 55.7 0.646
2035 55.4 0.646
2036 55.2 0.646
2037 54.9 0.646
2038 54.7 0.646
2039 54.4 0.646
2040 54.2 0.646
2041 54.0 0.646
2042 53.7 0.645
2043 53.5 0.645
2044 53.2 0.645
2045 53.0 0.645
2046 52.7 0.645
2047 52.5 0.645
2048 52.3 0.645
2049 52.0 0.644
2050 51.8 0.644


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds14380%2B5135a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic