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

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