22241-0450 BU 172 AB

 
 
22h 24m 06.87s -04° 50' 13.2" P.A. 27.00 sep 0.5 mag 6.45,6.63 Sp B9.5V dist. 124.38 pc (405.73 l.y.)
 
 
Coord 2000 22241-0450 Discov num BU  172 Comp AB Coord arcsec 2000 22 24 06.87 -04 50 13.2
Date first 1873 Date last 2019 Obs 244
Pa first 40 Pa last 26.8 P.A. Now (θ) 22.8°
Sep first 0.5 Sep last 0.499 Sep. Now (ρ) 0.522"
Mag pri 6.45 Mag sec 6.63 delta mag (ΔM) 0.18 Spectral class B9.5V (blue-white)
Pri motion ra +026 Sec motion ra
Pri motion dec -007 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
22241-0450 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 146067 22 24 07 -04 50 13 BU 172 AB 2019 244 27 0.5 6.45 6.63 0.18 Y <===
Show HD 212404 146067 22 24 07 -04 50 13 BU 172 AB,C 2016 14 341 53.9 5.77 12.20 6.43
Show 146067 22 24 07 -04 50 13 BU 172 AB,D 2016 12 191 124.8 5.77 11.50 5.73
Show 146067 22 24 07 -04 50 13 BU 172 AB,E 2016 15 134 130.3 5.77 9.87 4.10
Show 146067 22 24 07 -04 50 13 STU 14 AB,F 2000 6 3 256.8 5.77 11.10 5.33
Sextuple system
7 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquarius SAO 146067 HIP 110578 Tycho2 5229-01622-1
Gaia DR2 2626301656018708608 HD 212404 HR 8533 GC 31307
ADS 15902 BD BD-05 5780 Flamsteed 51 Aquarii Flamsteed name 51 Aqr
Distance 124.38 Distance ly 405.73
 
 
ORBITAL ELEMENTS
 
 
Period (P)145.07y± 1.85 Periastron (T)1987.66y± 0.05 Semi-major axis (a)0.402a± 0.003
Eccentricity (e)0.702± 0.003 Inclination (i)161.4°± 0.7 Longitude of periastron (ω)296.9°± 3
Node (Ω)113.5°± 3 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 61.8 0.286
2001 58.7 0.300
2002 55.8 0.313
2003 53.1 0.326
2004 50.7 0.339
2005 48.4 0.351
2006 46.3 0.363
2007 44.3 0.375
2008 42.4 0.386
2009 40.7 0.397
2010 39.0 0.408
2011 37.4 0.418
2012 35.9 0.429
2013 34.5 0.438
2014 33.1 0.448
2015 31.8 0.457
2016 30.5 0.466
2017 29.3 0.475
2018 28.1 0.483
2019 27.0 0.492
2020 25.9 0.500
2021 24.8 0.507
2022 23.8 0.515
2023 22.8 0.522
2024 21.8 0.529
2025 20.8 0.536
2026 19.9 0.543
2027 19.0 0.549
2028 18.1 0.555
2029 17.2 0.561
2030 16.4 0.567


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



 
 


wds22241-0450a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic