22240+0612 RAO  27Aa,Ab

 
 
22h 24m 01.31s +06 12' 10.2" P.A. 151.20 sep 0.1 mag 8.20,8.00 Sp G0 dist. 52.52 pc (171.32 l.y.)
 
 
Coord 2000
22240+0612
Discov num
RAO  27
Comp
Aa,Ab
Coord arcsec 2000
22 24 01.31 +06 12 10.2
Date first
2012
Date last
2020
Obs
8
Pa first
327
Pa last
331
P.A. Now (θ)
151.2°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.14"
Mag pri
8.20
Mag sec
8.00
delta mag (ΔM)
0.2
Spectral class
G0 (yellow)
Pri motion ra
+035
Sec motion ra
Pri motion dec
-048
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
22240+0612 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 22 24 01 +06 12 10 RAO 27 Aa,Ab 2020 8 151 0.1 8.20 8.00 0.20 Y <===
Show 22 24 01 +06 12 10 TOK 350 AB 2016 8 7 171.3 8.20 15.88 7.68
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
331
Precise sep
0.133
Constellation
Hydra
HIP
110574
Tycho2
0566-00446-1
Gaia DR2
2710047638481130240
HD
212426
BD
BD+05 5015
Distance
52.52
Distance ly
171.32
last precise pa
331
last precise sep
0.133
 
 
ORBITAL ELEMENTS
 
 
Period (P)11.24y± 0.36 Periastron (T)2015.88y± 0.1 Semi-major axis (a)0.097a± 0.002
Eccentricity (e)0.403± 0.014 Inclination (i)94.7°± 0.8 Longitude of periastron (ω)181.4°± 3.6
Node (Ω)150.7°± 0.6 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2021
label rho theta
2000 0.128 149.3
2001 0.104 147.7
2002 0.065 144.4
2003 0.014 119.4
2004 0.044 335.8
2005 0.052 328.0
2006 0.007 248.5
2007 0.056 158.0
2008 0.098 154.0
2009 0.125 152.2
2010 0.136 150.9
2011 0.131 149.7
2012 0.111 148.1
2013 0.076 145.5
2014 0.026 134.7
2015 0.032 339.7
2016 0.057 329.8
2017 0.016 309.2
2018 0.044 160.2
2019 0.090 154.6
2020 0.120 152.6
2021 0.135 151.2
2022 0.134 150.0
2023 0.118 148.6
2024 0.086 146.4
2025 0.039 139.9
2026 0.020 348.2
2027 0.058 331.4
2028 0.029 320.6
2029 0.031 164.3
2030 0.080 155.4


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



 
 


wds22240%2B0612a.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
22240+0612 RAO 27 Aa,Ab 2012 1 327 0.1 8.90 9.00 222401.31+061210.2
22240+0612 RAO 27 Aa,Ab 2013 2 320 0.0 8.20 8.00 222401.31+061210.2
22240+0612 RAO 27 Aa,Ab 2015 4 332 0.1 8.20 8.00 G0 222401.31+061210.2
22240+0612 RAO 27 Aa,Ab 2016 5 327 0.0 8.20 8.00 G0 N 222401.31+061210.2
22240+0612 RAO 27 Aa,Ab 2018 6 337 0.1 8.20 8.00 G0 N 222401.31+061210.2
22240+0612 RAO 27 Aa,Ab 2019 7 333 0.1 8.20 8.00 G0 N 222401.31+061210.2

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