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Doubles in session


Current system
15246+5413
HU 149
HD 137588


Nearby doubles
21' : 15224+5408
SLW9006

45' : 15266+5454
STF1948

62' : 15200+5326
WIS 283

64' : 15200+5324
TDS9490

65' : 15187+5334
ES 740AB

66' : 15206+5508
CBL 486

67' : 15225+5516
HU 148

67' : 15214+5312
GRV1209

72' : 15266+5522
LDT 11

75' : 15204+5309
HU 147

75' : 15206+5520
HJ 2779AB

80' : 15169+5331
KPP1078

92' : 15337+5500
CVR1634AB

97' : 15195+5248
SLW1081

98' : 15198+5245
ES 741AB

98' : 15135+5402
MLR 635

103' : 15360+5438
DRS 16AB

106' : 15306+5242
KPP 347

106' : 15126+5401
HJ 2771

108' : 15330+5527
GRV1113

108' : 15156+5527
WZ 13

113' : 15226+5604
DBR 245

114' : 15264+5221
SLW1092

115' : 15375+5431
YSC 57

117' : 15239+5610
VVO 14

122' : 15116+5333
TOK 589AB



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

15246+5413 HU 149 (HD 137588)

 
 
15h 24m 35.30s +54° 12' 46.1" P.A. 268.00 sep 0.8 mag 7.48,7.62 Sp K0 dist. 234.74 pc (765.72 l.y.)
 
 
Coord 2000 15246+5413 Discov num HU  149 Comp Coord arcsec 2000 15 24 35.30 +54 12 46.1
Date first 1900 Date last 2023 Obs 83
Pa first 296 Pa last 268.3 P.A. Now (θ) 271°
Sep first 0.2 Sep last 0.76 Sep. Now (ρ) 0.665"
Mag pri 7.48 Mag sec 7.62 delta mag (ΔM) 0.14 Spectral class K0 (yellow-orange)
Pri motion ra +039 Sec motion ra +039
Pri motion dec -055 Sec motion dec -055
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 137588 Constellation Draco SAO 29514 HIP 75425
Tycho2 3869-00222-1 Gaia DR2 1599559109384447104 HD 137588 GC 20735
ADS 9628 BD BD+54 1745 Distance 234.74 Distance ly 765.72
 
 
ORBITAL ELEMENTS
 
 
Period (P)770y Periastron (T)1979.4y Semi-major axis (a)0.776a
Eccentricity (e)0.17 Inclination (i)96.8° Longitude of periastron (ω)156°
Node (Ω)90.7° Notes ReferenceZir2015a
Equinox2000 Last observation2010 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 271.9 0.637
2001 271.8 0.638
2002 271.8 0.640
2003 271.7 0.641
2004 271.6 0.642
2005 271.5 0.644
2006 271.4 0.645
2007 271.4 0.646
2008 271.3 0.647
2009 271.2 0.648
2010 271.1 0.649
2011 271.1 0.649
2012 271.0 0.650
2013 270.9 0.651
2014 270.8 0.651
2015 270.7 0.652
2016 270.7 0.652
2017 270.6 0.653
2018 270.5 0.653
2019 270.4 0.653
2020 270.4 0.654
2021 270.3 0.654
2022 270.2 0.654
2023 270.1 0.654
2024 270.1 0.653
2025 270.0 0.653
2026 269.9 0.653
2027 269.8 0.653
2028 269.7 0.652
2029 269.7 0.652
2030 269.6 0.651
2031 269.5 0.651
2032 269.4 0.650
2033 269.4 0.649
2034 269.3 0.648
2035 269.2 0.648
2036 269.1 0.647
2037 269.0 0.646
2038 269.0 0.644
2039 268.9 0.643
2040 268.8 0.642
2041 268.7 0.641
2042 268.6 0.639
2043 268.6 0.638
2044 268.5 0.637
2045 268.4 0.635
2046 268.3 0.633
2047 268.2 0.632
2048 268.2 0.630
2049 268.1 0.628
2050 268.0 0.626


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds15246%2B5413a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic