05544+2017 KNG   1 (Chi1 Ori)

 
 
05h 54m 22.97s +20 16' 34.2" P.A. 123 sep 0.5 mag 4.46,7.50 Sp G0V dist. 8.66 pc (28.25 l.y.)
 
 
Coord 2000
05544+2017
Discov num
KNG   1
Comp
Coord arcsec 2000
05 54 22.97 +20 16 34.2
Date first
1982
Date last
2002
Obs
2
Pa first
326
Pa last
123
P.A. Now (θ)
123°
Sep first
0.7
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
4.46
Mag sec
7.50
delta mag (ΔM)
3.04
Spectral class
G0V (yellow)
Pri motion ra
-175
Sec motion ra
Pri motion dec
-090
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
123.2
Precise sep
0.498
Name
Chi1 Ori
Constellation
Orion
SAO
77705
HIP
27913
Tycho2
1320-02118-1
Gaia DR2
35753901952
HD
39587
HR
2047
GC
7419
GL
Gl 222A
BD
BD+20 1162
Bayer
Chi 1 Orionis
Bayer name
Chi1 Ori
Flamsteed
54 Orionis
Flamsteed name
54 Ori
Distance
8.66
Distance ly
28.25
last precise pa
123.2
last precise sep
0.498
 
 
ORBITAL ELEMENTS
 
 
Period (P)5156.291d (14.12y)± 2.508 Periastron (T)51468.2d (1999.791y)± 3.083 Semi-major axis (a)89.662m± 0.88
Eccentricity (e)0.452± 0.002 Inclination (i)95.937°± 0.79 Longitude of periastron (ω)111.527°± 0.23
Node (Ω)126.36°± 0.593 Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation2000
label rho theta
2000 0.030 314.1
2001 0.064 305.6
2002 0.064 301.2
2003 0.048 295.2
2004 0.026 280.4
2005 0.013 208.0
2006 0.030 151.8
2007 0.053 140.0
2008 0.072 135.0
2009 0.087 132.1
2010 0.096 129.9
2011 0.094 127.8
2012 0.077 125.3
2013 0.037 119.2
2014 0.024 317.2
2015 0.062 306.2
2016 0.065 301.8
2017 0.050 296.1
2018 0.029 283.3
2019 0.013 221.6
2020 0.028 154.4
2021 0.050 140.8
2022 0.070 135.5
2023 0.086 132.4
2024 0.095 130.1
2025 0.095 128.1
2026 0.080 125.6
2027 0.043 120.5
2028 0.017 322.6
2029 0.060 306.8
2030 0.066 302.3

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






wds05544%2B2017s.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
05544+2017 KNG 1 2002 2 123 0.5 4.46 7.50 N D 055422.97+201634.2

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