09094+2203 WRH  16 (Xi Cnc)

 
 
09H 09M 21.53S +22 02' 43.6" P.A. 108 SEP 0.2 MAG 5.70,6.20 SP K0III DIST. 114.42 PC (373.24 L.Y.)
 
 
Coord 2000
09094+2203
Discov num
WRH  16
Comp
Coord arcsec 2000
09 09 21.53 +22 02 43.6
Date first
1937
Date last
1944
Obs
2
Pa first
62
Pa last
108
P.A. Now (θ)
108°
Sep first
0.3
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
5.70
Mag sec
6.20
delta mag (ΔM)
0.5
Spectral class
K0III (yellow-orange)
Pri motion ra
+001
Sec motion ra
Pri motion dec
+005
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Xi Cnc
Constellation
Cancer
SAO
80666
HIP
44946
Tycho2
1407-01989-1
HD
78515
HR
3627
GC
12635
BD
BD+22 2061
Bayer
Xi Cancri
Bayer name
Xi Cnc
Flamsteed
77 Cancri
Flamsteed name
77 Cnc
Distance
114.42
Distance ly
373.24
last precise pa
108
last precise sep
0.15
 
 
ORBITAL ELEMENTS
 
 
Period (P)1700.7d (4.66y) Periastron (T)28876.8d (1937.938y) Semi-major axis (a)10.5m± 1.7
Eccentricity (e)0.06 Inclination (i)144.1°± 4.9 Longitude of periastron (ω)301.1°
Node (Ω)282°± 9.7 Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation1992
label rho theta
2000-01-01 0.009 221.7
2001-01-01 0.010 141.1
2002-01-01 0.010 79.5
2003-01-01 0.008 347.8
2004-01-01 0.010 269.7
2005-01-01 0.009 192.5
2006-01-01 0.011 119.4
2007-01-01 0.009 53.5
2008-01-01 0.009 316.2
2009-01-01 0.010 245.9
2010-01-01 0.009 163.9
2011-01-01 0.011 99.1
2012-01-01 0.008 20.6
2013-01-01 0.010 290.6
2014-01-01 0.009 219.2
2015-01-01 0.010 139.0
2016-01-01 0.010 77.4
2017-01-01 0.008 344.7
2018-01-01 0.010 267.6
2019-01-01 0.009 189.8
2020-01-01 0.011 117.6
2021-01-01 0.009 50.9
2022-01-01 0.009 313.7
2023-01-01 0.010 243.7
2024-01-01 0.009 161.4
2025-01-01 0.011 97.3
2026-01-01 0.008 17.4
2027-01-01 0.010 288.5
2028-01-01 0.009 216.6
2029-01-01 0.010 137.0
2030-01-01 0.010 75.3

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic