00247-2653 LEI 1 AB

 
 
00h 24m 44.22s -27 08' 25.0" P.A. 62.00 sep 0.9 mag 15.40,18.69 Sp M5.5V+M9V
 
 
Coord 2000 00247-2653 Discov num LEI   1 Comp AB Coord arcsec 2000 00 24 44.22 -27 08 25.0
Date first 1993 Date last 2021 Obs 70
Pa first 353 Pa last 62.3 P.A. Now (θ) 62.3°
Sep first 1.1 Sep last 0.891 Sep. Now (ρ) 0.891"
Mag pri 15.40 Mag sec 18.69 delta mag (ΔM) 3.29 Spectral class M5.5V+M9V (red/red)
Pri motion ra -093 Sec motion ra -055
Pri motion dec +696 Sec motion dec +612
Notes N O (See Notes, Orbital solution)
rPM=0.131 (< 0.3, Physical double)
This double is physical.
 
 
00247-2653 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 00 24 44 -27 08 25 HEN 5 Aa,Ab 1998 0 -1 0.1 15.50 18.00 2.50
Show 00 24 44 -27 08 25 LEI 1 AB 2021 70 62 0.9 15.40 18.69 3.29 <===
Show 00 24 44 -27 08 25 LEI 1 AC 2010 3 23 1.5 15.40 19.07 3.67
Show 00 24 44 -27 08 26 LEI 1 BC 2021 84 183 0.5 18.69 19.07 0.38 Y
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sculptor
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier00247-2653 LEI 1 A,BC
coord_arcsec_2000002444.25-270827.9
Period (P)44.4y± 7.2 Periastron (T)59727.9d (2022.405y)± 3.4 Semi-major axis (a)1.1116a± 0.001
Eccentricity (e)0.52± 0.0016 Inclination (i)54.75°± 0.5 Longitude of periastron (ω)147.61°± 4.25
Node (Ω)26.8°± 0.08 Notesn ReferenceKoh2012
Equinox2000 Last observation2008 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 6.3 1.513
2001 8.4 1.541
2002 10.4 1.562
2003 12.4 1.576
2004 14.4 1.582
2005 16.4 1.581
2006 18.4 1.571
2007 20.4 1.553
2008 22.5 1.526
2009 24.6 1.490
2010 26.9 1.443
2011 29.4 1.386
2012 32.1 1.317
2013 35.1 1.236
2014 38.6 1.142
2015 42.8 1.034
2016 48.0 0.912
2017 55.0 0.777
2018 65.0 0.633
2019 81.0 0.489
2020 108.2 0.381
2021 145.7 0.364
2022 177.2 0.441
2023 198.2 0.531
2024 213.9 0.583
2025 228.0 0.597
2026 242.0 0.592
2027 256.3 0.585
2028 270.7 0.589
2029 284.5 0.611
2030 297.0 0.650


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



 
 


wds00247-2653d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic