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Current system
15078+3956
COU 1271
HD 134303


Nearby doubles
5' : 15082+3958
RUC 23

22' : 15088+4014
COU1272AB

29' : 15069+4023
LDS4530

47' : 15106+3923
NI 34AB

48' : 15118+3949
LDS4535

50' : 15075+4045
CVR1617

55' : 15123+3939
LEP 73

60' : 15032+3927
SLW1055

62' : 15108+3905
HJ 568

63' : 15099+3859
STF1916

63' : 15108+4048
SKF1755

68' : 15020+4002
ES 1550

71' : 15024+4026
LDS4523

78' : 15109+4104
CVR1619

83' : 15007+4011
SLW1051

87' : 15135+3900
UR 16

91' : 15120+3840
STF1921AB

96' : 14595+3957
COU1269AB

97' : 15013+4057
TOI2256

99' : 14592+3956
KPP4338AB

102' : 14590+4002
SLW1047

102' : 15084+3814
CRB 108

104' : 15070+4139
COU1439

109' : 15096+4142
A 572

110' : 15008+3843
KPP3942

111' : 14580+4013
HJ 1264



Selections
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Binary Systems
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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.

15078+3956 COU 1271 (HD 134303)

 
 
15h 07m 47.23s +39° 55' 58.3" P.A. 193.00 sep 0.4 mag 9.00,10.00 Sp G0
 
 
Coord 2000 15078+3956 Discov num COU1271 Comp Coord arcsec 2000 15 07 47.23 +39 55 58.3
Date first 1975 Date last 2016 Obs 20
Pa first 147 Pa last 193 P.A. Now (θ) 193°
Sep first 0.4 Sep last 0.404 Sep. Now (ρ) 0.404"
Mag pri 9.00 Mag sec 10.00 delta mag (ΔM) 1 Spectral class G0 (yellow)
Pri motion ra -071 Sec motion ra
Pri motion dec +003 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 134303 Constellation Bootes SAO 45390 Tycho2 3045-00892-1
Gaia DR2 1391918842443616128 HD 134303
 
 
ORBITAL ELEMENTS
 
 
Period (P)137.83y Periastron (T)0y Semi-major axis (a)0.38a
Eccentricity (e)0 Inclination (i)0° Longitude of periastron (ω)0°
Node (Ω)0° Notes ReferenceCou1999b
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 183.8 0.380
2001 186.4 0.380
2002 189.1 0.380
2003 191.7 0.380
2004 194.3 0.380
2005 196.9 0.380
2006 199.5 0.380
2007 202.1 0.380
2008 204.7 0.380
2009 207.3 0.380
2010 209.9 0.380
2011 212.6 0.380
2012 215.2 0.380
2013 217.8 0.380
2014 220.4 0.380
2015 223.0 0.380
2016 225.6 0.380
2017 228.2 0.380
2018 230.8 0.380
2019 233.5 0.380
2020 236.1 0.380
2021 238.7 0.380
2022 241.3 0.380
2023 243.9 0.380
2024 246.5 0.380
2025 249.1 0.380
2026 251.7 0.380
2027 254.3 0.380
2028 257.0 0.380
2029 259.6 0.380
2030 262.2 0.380
2031 264.8 0.380
2032 267.4 0.380
2033 270.0 0.380
2034 272.6 0.380
2035 275.2 0.380
2036 277.9 0.380
2037 280.5 0.380
2038 283.1 0.380
2039 285.7 0.380
2040 288.3 0.380
2041 290.9 0.380
2042 293.5 0.380
2043 296.1 0.380
2044 298.8 0.380
2045 301.4 0.380
2046 304.0 0.380
2047 306.6 0.380
2048 309.2 0.380
2049 311.8 0.380
2050 314.4 0.380


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds15078%2B3956a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic