11221-2447 I 507 AB

 
 
11h 22m 05.29s -24° 46' 39.8" P.A. 7.00 sep 0.3 mag 9.59,10.06 Sp K4V dist. 44.9 pc (146.46 l.y.)
 
 
Coord 2000 11221-2447 Discov num I   507 Comp AB Coord arcsec 2000 11 22 05.29 -24 46 39.8
Date first 1909 Date last 2021 Obs 42
Pa first 190 Pa last 7.2 P.A. Now (θ) 7.2°
Sep first 1.0 Sep last 0.342 Sep. Now (ρ) 0.342"
Mag pri 9.59 Mag sec 10.06 delta mag (ΔM) 0.47 Spectral class K4V (yellow-orange)
Pri motion ra -092 Sec motion ra -092
Pri motion dec -031 Sec motion dec -031
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
11221-2447 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 11 22 05 -24 46 40 GRE 3 Aa,Ab 2021 8 6 0.0 6.10 7.20 1.10 Y
Show 179815 11 22 05 -24 46 40 I 507 AB 2021 42 7 0.3 9.59 10.06 0.47 Y <===
Show TV Crt 11 22 05 -24 46 40 SHY 228 AB,C 1998 3 126 999.9 9.24 8.53 0.71
Show 179815 11 22 05 -24 46 40 BOD 1 Ba,Bb 2019 15 281 0.0 10.40 11.50 1.10 Y
Sextuple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name TV Crt Constellation Crater SAO 179815 HIP 55505
Tycho2 6654-00219-1 HD 98800 ADS 8141 GL GJ 2084A
CD CD-24 9706 CP CP-24 4651 Distance 44.9 Distance ly 146.46
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)205.69y Periastron (T)2024.147y Semi-major axis (a)1.052a
Eccentricity (e)0.429 Inclination (i)87.9° Longitude of periastron (ω)69.6°
Node (Ω)4.3° Notesn ReferenceTok2018e
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 3.5 0.804
2001 3.6 0.802
2002 3.7 0.798
2003 3.8 0.792
2004 3.9 0.785
2005 4.0 0.776
2006 4.1 0.765
2007 4.3 0.752
2008 4.4 0.738
2009 4.5 0.721
2010 4.6 0.703
2011 4.8 0.682
2012 4.9 0.659
2013 5.0 0.634
2014 5.2 0.606
2015 5.4 0.577
2016 5.6 0.545
2017 5.8 0.511
2018 6.1 0.475
2019 6.4 0.436
2020 6.8 0.396
2021 7.2 0.353
2022 7.8 0.309
2023 8.6 0.264
2024 9.7 0.217
2025 11.5 0.170
2026 14.6 0.121
2027 21.8 0.074
2028 52.0 0.030
2029 146.9 0.037
2030 168.4 0.082


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



 
 


wds11221-2447d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)340y± 50 Periastron (T)2018y± 1 Semi-major axis (a)1.5a± 0.2
Eccentricity (e)0.55± 0.04 Inclination (i)88.39°± 0.09 Longitude of periastron (ω)224°± 4
Node (Ω)184.6°± 0.1 Notesn ReferenceVI_2021b
Equinox2000 Last observation2019 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 3.9 0.793
2001 4.0 0.792
2002 4.1 0.790
2003 4.2 0.786
2004 4.3 0.780
2005 4.4 0.773
2006 4.5 0.763
2007 4.6 0.752
2008 4.7 0.738
2009 4.8 0.723
2010 4.9 0.705
2011 5.0 0.686
2012 5.1 0.664
2013 5.3 0.639
2014 5.4 0.613
2015 5.6 0.584
2016 5.7 0.553
2017 5.9 0.521
2018 6.2 0.486
2019 6.4 0.449
2020 6.7 0.411
2021 7.1 0.371
2022 7.5 0.330
2023 8.1 0.288
2024 8.9 0.245
2025 10.1 0.201
2026 11.8 0.156
2027 15.0 0.112
2028 22.5 0.067
2029 53.8 0.028
2030 146.8 0.035


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



 
 


wds11221-2447h.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic