22134-3729 B  2056

 
 
22h 13m 23.95s -37 29' 02.5" P.A. 161.60 sep 0.2 mag 8.50,8.60 Sp F0IV
 
 
Coord 2000
22134-3729
Discov num
B  2056
Comp
Coord arcsec 2000
22 13 23.95 -37 29 02.5
Date first
1934
Date last
2019
Obs
19
Pa first
161
Pa last
343
P.A. Now (θ)
161.6°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.21"
Mag pri
8.50
Mag sec
8.60
delta mag (ΔM)
0.1
Spectral class
F0IV (yellow-white)
Pri motion ra
+063
Sec motion ra
Pri motion dec
-013
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
343.3
Precise sep
0.204
Constellation
Grus
SAO
213645
Tycho2
7502-00104-1
Gaia DR2
6574109597341814784
HD
210767
last precise pa
343.3
last precise sep
0.204
 
 
ORBITAL ELEMENTS
 
 
Period (P)83.94y Periastron (T)2039.42y Semi-major axis (a)0.212a
Eccentricity (e)0.06 Inclination (i)109.6° Longitude of periastron (ω)77.4°
Node (Ω)158.8° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2018
label rho theta
2000 0.076 257.3
2001 0.075 246.0
2002 0.077 234.8
2003 0.081 224.5
2004 0.088 215.4
2005 0.095 207.7
2006 0.104 201.2
2007 0.113 195.7
2008 0.123 191.0
2009 0.133 187.1
2010 0.142 183.6
2011 0.152 180.7
2012 0.160 178.0
2013 0.169 175.6
2014 0.177 173.5
2015 0.184 171.5
2016 0.190 169.6
2017 0.196 167.9
2018 0.200 166.3
2019 0.204 164.7
2020 0.207 163.1
2021 0.208 161.6
2022 0.209 160.2
2023 0.208 158.7
2024 0.207 157.2
2025 0.204 155.7
2026 0.200 154.1
2027 0.196 152.4
2028 0.190 150.7
2029 0.183 148.8
2030 0.175 146.8


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



 
 


wds22134-3729b.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
22134-3729 B 2056 1991 12 316 0.2 8.50 8.60 F0IV 221323.95-372902.5
22134-3729 B 2056 2008 14 189 0.1 8.50 8.60 F0IV 221323.95-372902.5
22134-3729 B 2056 2010 15 180 0.2 8.50 8.60 F0IV 221323.95-372902.5
22134-3729 B 2056 2013 16 174 0.2 8.50 8.60 F0IV O 221323.95-372902.5
22134-3729 B 2056 2015 17 171 0.2 8.50 8.60 F0IV O 221323.95-372902.5
22134-3729 B 2056 2018 18 345 0.2 8.50 8.60 F0IV O 221323.95-372902.5
22134-3729 B 2056 2019 19 343 0.2 8.50 8.60 F0IV O 221323.95-372902.5

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