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Doubles in session


Current system
23568+0444
A 2100


Nearby doubles
31' : 23550+0428
A 2200

39' : 23546+0503
OCC9205

48' : 23568+0355
BAL2583

54' : 23553+0532
OCC1086

55' : 23596+0410
OCC 191

56' : 23567+0538
LDS5137

70' : 23523+0428
GWP3367

77' : 23529+0533
TDT4249

90' : 23513+0409
SLW1335

92' : 23554+0314
OCC9206

92' : 23583+0613
OCC1087

96' : 23579+0309
KPP 664

99' : 23539+0612
CVR1024

100' : 23594+0615
OCC1088

101' : 23501+0428
OCC 302

101' : 23539+0614
GWP3369

109' : 23496+0454
CBL 110

112' : 23500+0531
NI 49

114' : 23492+0459
TOK 376

117' : 23563+0640
GWP3375

118' : 23550+0249
BAL2073

119' : 23567+0244
LDS3009

122' : 23533+0633
TDT4253

123' : 23489+0516
TDT4213

124' : 23486+0428
SLW1331

125' : 23598+0640
ALD 8AB



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.

23568+0444 A  2100

 
 
23h 56m 47.29s +04° 43' 30.4" P.A. 251.30 sep 0.4 mag 7.40,7.90 Sp F0 dist. 111.98 pc (365.28 l.y.)
 
 
Coord 2000
23568+0444
 Discov num
A  2100
 Comp
Coord arcsec 2000
23 56 47.29 +04 43 30.4
Date first
1909
 Date last
2019
 Obs
102
Pa first
289
 Pa last
252
 P.A. Now (θ)
251.3°
Sep first
0.2
 Sep last
0.4
 Sep. Now (ρ)
0.43"
Mag pri
7.40
 Mag sec
7.90
 delta mag (ΔM)
0.5
 Spectral class
F0 (yellow-white)
Pri motion ra
+049
 Sec motion ra
Pri motion dec
+004
 Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
252.4
 Precise sep
0.426
 Constellation
Pisces
 HIP
118054
Tycho2
0590-01071-1
 Gaia DR2
2743477297386692224
 HD
224315
 ADS
17111
BD
BD+03 4909
 Distance
111.98
 Distance ly
365.28
 last precise pa
252.4
last precise sep
0.426
 
 
ORBITAL ELEMENTS
 
 
Period (P)89.22y Periastron (T)1990.75y Semi-major axis (a)0.271a
Eccentricity (e)0.761 Inclination (i)159° Longitude of periastron (ω)56.3°
Node (Ω)112.9° Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2017
label rho theta
2000 0.236 284.4
2001 0.251 281.4
2002 0.266 278.7
2003 0.280 276.3
2004 0.293 274.1
2005 0.305 272.1
2006 0.317 270.2
2007 0.328 268.5
2008 0.338 266.9
2009 0.348 265.4
2010 0.357 263.9
2011 0.366 262.5
2012 0.374 261.2
2013 0.382 260.0
2014 0.389 258.8
2015 0.396 257.6
2016 0.403 256.5
2017 0.409 255.4
2018 0.414 254.3
2019 0.420 253.3
2020 0.424 252.3
2021 0.429 251.3
2022 0.433 250.3
2023 0.437 249.4
2024 0.440 248.5
2025 0.443 247.5
2026 0.446 246.6
2027 0.448 245.7
2028 0.450 244.8
2029 0.452 244.0
2030 0.453 243.1


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds23568%2B0444c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
23568+0444 A 2100 2007 84 267 0.3 7.40 7.90 F0 NOD 235647.29+044330.4
23568+0444 A 2100 2008 89 267 0.4 7.40 7.90 F0 NOD 235647.29+044330.4
23568+0444 A 2100 2011 91 261 0.4 7.40 7.90 F0 NOD 235647.29+044330.4
23568+0444 A 2100 2013 92 260 0.4 7.40 7.90 F0 NO 235647.29+044330.4
23568+0444 A 2100 2014 95 258 0.4 7.40 7.90 F0 NO 235647.29+044330.4
23568+0444 A 2100 2018 97 254 0.4 7.40 7.90 F0 NO 235647.29+044330.4
23568+0444 A 2100 2019 102 252 0.4 7.40 7.90 F0 NO 235647.29+044330.4

If you need more information about this double, apply for a data request form to the WDS.