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Doubles in session


Current system
23334+4251
HDS 3356
HD 221613


Nearby doubles
18' : 23330+4307
COU2147

30' : 23352+4313
A 2799AB

32' : 23349+4224
TDT4108

35' : 23304+4238
CHE 503

36' : 23303+4239
CHE 502

38' : 23348+4325
ES 1473

39' : 23368+4256
UC 4997

45' : 23294+4301
CHE 498

46' : 23293+4248
CHE 496

47' : 23292+4247
TDT4061

48' : 23290+4245
CHE 494AB

50' : 23371+4224
RAO 497

51' : 23301+4215
CHE 501

53' : 23313+4204
ES 1597

54' : 23289+4230
CHE 493

56' : 23288+4227
CHE 490

57' : 23379+4318
H 6 45

58' : 23282+4245
CHE 484

58' : 23285+4230
CHE 488

58' : 23283+4238
CHE 486

58' : 23288+4225
COU1847

58' : 23291+4324
A 109

58' : 23357+4343
COU2148

59' : 23356+4344
GRV 673AB

60' : 23384+4231
BU 722AB

60' : 23293+4329
TDT4062



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.

23334+4251 HDS 3356 (HD 221613)

 
 
23h 33m 24.06s +42° 50' 47.8" P.A. 3.00 sep 0.1 mag 7.36,9.97 Sp G0 dist. 34.94 pc (113.97 l.y.)
 
 
Coord 2000 23334+4251 Discov num HDS3356 Comp Coord arcsec 2000 23 33 24.06 +42 50 47.8
Date first 1991 Date last 2011 Obs 28
Pa first 341 Pa last 3.2 P.A. Now (θ) 339.1°
Sep first 0.2 Sep last 0.125 Sep. Now (ρ) 0.178"
Mag pri 7.36 Mag sec 9.97 delta mag (ΔM) 2.61 Spectral class G0 (yellow)
Pri motion ra +244 Sec motion ra
Pri motion dec +167 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 221613 Constellation Andromeda SAO 53142 HIP 116259
Tycho2 3239-00142-1 Gaia DR2 1924124427825883904 HD 221613 GC 32758
BD BD+42 4700 Distance 34.94 Distance ly 113.97
 
 
ORBITAL ELEMENTS
 
 
Period (P)16.349y± 0.063 Periastron (T)1989.145y± 0.044 Semi-major axis (a)0.225a± 0.003
Eccentricity (e)0.543± 0.013 Inclination (i)74.775°± 0.646 Longitude of periastron (ω)87.745°± 0.783
Node (Ω)141.788°± 0.835 Notesn ReferenceJAA2023
Equinox Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 105.6 0.134
2001 117.0 0.160
2002 125.4 0.181
2003 132.6 0.187
2004 140.4 0.163
2005 157.3 0.080
2006 304.3 0.076
2007 322.1 0.164
2008 329.5 0.194
2009 335.9 0.194
2010 343.0 0.177
2011 352.1 0.152
2012 5.3 0.124
2013 25.3 0.101
2014 53.0 0.091
2015 80.6 0.101
2016 100.4 0.124
2017 113.5 0.151
2018 122.7 0.175
2019 130.1 0.187
2020 137.4 0.176
2021 148.4 0.118
2022 269.7 0.034
2023 318.5 0.142
2024 327.2 0.188
2025 333.7 0.196
2026 340.4 0.184
2027 348.6 0.161
2028 0.1 0.133
2029 17.3 0.108
2030 42.8 0.092
2031 71.7 0.096
2032 94.4 0.115
2033 109.5 0.142
2034 119.8 0.168
2035 127.6 0.185
2036 134.7 0.183
2037 143.5 0.146
2038 179.0 0.043
2039 313.0 0.110
2040 324.7 0.178
2041 331.5 0.197
2042 338.0 0.190
2043 345.5 0.170
2044 355.6 0.143
2045 10.4 0.116
2046 33.0 0.096
2047 61.9 0.092
2048 87.5 0.107
2049 104.9 0.132
2050 116.6 0.159


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds23334%2B4251c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic