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Doubles in session


Current system
18101+1629
STF 2289
NSV10311


Nearby doubles
6' : 18103+1623
UC 3513

15' : 18092+1623
UC 3507

21' : 18112+1614
TDT 728

23' : 18093+1648
BPM 733

25' : 18119+1630
GWP2767

26' : 18090+1610
BPM 730AB

27' : 18112+1648
LDS1006

35' : 18091+1700
TDS 907

39' : 18086+1700
HDS2555

47' : 18125+1701
BPMA 52

48' : 18088+1712
GWP2763

48' : 18113+1713
HU 317

49' : 18134+1643
HEI 170

53' : 18073+1557
LDS1005AB

55' : 18115+1538
UC 3524

64' : 18069+1712
BPM 724

64' : 18060+1651
GWP2758

69' : 18054+1624
A 2093

69' : 18136+1715
RAO 384

80' : 18156+1614
LDS1008

86' : 18043+1613
J 751

90' : 18042+1613
GCB 30

92' : 18092+1458
BPM 732

93' : 18054+1527
BPM 721

94' : 18096+1801
BRT2441

96' : 18089+1802
BPM 729



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.

18101+1629 STF 2289 (NSV10311)

 
 
18h 10m 08.69s +16° 28' 35.0" P.A. 219.00 sep 1.3 mag 6.65,7.21 Sp A0V+G0III dist. 263.85 pc (860.68 l.y.)
 
 
Coord 2000 18101+1629 Discov num STF2289 Comp Coord arcsec 2000 18 10 08.69 +16 28 35.0
Date first 1829 Date last 2022 Obs 324
Pa first 243 Pa last 218.5 P.A. Now (θ) 218.5°
Sep first 1.2 Sep last 1.25 Sep. Now (ρ) 1.25"
Mag pri 6.65 Mag sec 7.21 delta mag (ΔM) 0.56 Spectral class A0V+G0III (white/yellow)
Pri motion ra +000 Sec motion ra +000
Pri motion dec -014 Sec motion dec -014
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV10311 Constellation Hercules SAO 103443 HIP 89023
Tycho2 1567-02517-1 Gaia DR2 4499054727339303552 HD 166479 HR 6803
ADS 11123 BD BD+16 3390 Distance 263.85 Distance ly 860.68
 
 
ORBITAL ELEMENTS
 
 
Period (P)1958.8509y± 826.4005 Periastron (T)2198.3174y± 446.5394 Semi-major axis (a)2.4491a± 1.43869
Eccentricity (e)0.81761± 0.14203 Inclination (i)101.811°± 6.929 Longitude of periastron (ω)262.211°± 12.877
Node (Ω)21.771°± 38.671 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 220.1 1.218
2001 220.1 1.218
2002 220.0 1.218
2003 219.9 1.218
2004 219.8 1.218
2005 219.7 1.218
2006 219.6 1.218
2007 219.5 1.217
2008 219.4 1.217
2009 219.4 1.217
2010 219.3 1.217
2011 219.2 1.217
2012 219.1 1.217
2013 219.0 1.216
2014 218.9 1.216
2015 218.8 1.216
2016 218.7 1.216
2017 218.6 1.215
2018 218.6 1.215
2019 218.5 1.215
2020 218.4 1.214
2021 218.3 1.214
2022 218.2 1.214
2023 218.1 1.213
2024 218.0 1.213
2025 217.9 1.212
2026 217.9 1.212
2027 217.8 1.211
2028 217.7 1.211
2029 217.6 1.210
2030 217.5 1.210
2031 217.4 1.209
2032 217.3 1.209
2033 217.2 1.208
2034 217.1 1.208
2035 217.1 1.207
2036 217.0 1.206
2037 216.9 1.206
2038 216.8 1.205
2039 216.7 1.204
2040 216.6 1.203
2041 216.5 1.203
2042 216.4 1.202
2043 216.3 1.201
2044 216.2 1.200
2045 216.2 1.199
2046 216.1 1.198
2047 216.0 1.197
2048 215.9 1.197
2049 215.8 1.196
2050 215.7 1.195


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds18101%2B1629b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic