08589+0829 DEL   2

 
 
08H 58M 56.32S +08 28' 26.1" P.A. 48.5 SEP 0.22 MAG 10.89, SP M3.5V
 
 
Coord 2000
08589+0829
Discov num
DEL   2
Comp
Coord arcsec 2000
08 58 56.32 +08 28 26.1
Date first
1997
Date last
2015
Obs
9
Pa first
90
Pa last
85
P.A. Now (θ)
48.5°
Sep first
0.6
Sep last
0.6
Sep. Now (ρ)
0.22"
Mag pri
10.89
Mag sec
delta mag (ΔM)
Spectral class
M3.5V (red)
Pri motion ra
+374
Sec motion ra
Pri motion dec
-344
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cancer
last precise pa
85.3
last precise sep
0.638
 
 
ORBITAL ELEMENTS
 
 
Period (P)5.566y± 0.024 Periastron (T)2006.445y± 0.039 Semi-major axis (a)0.398a± 0.008
Eccentricity (e)0.778± 0.019 Inclination (i)122.2°± 3.1 Longitude of periastron (ω)23.7°± 3.2
Node (Ω)281.8°± 1.7 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.323 63.1
2001 0.072 175.8
2002 0.521 103.1
2003 0.664 93.7
2004 0.643 85.9
2005 0.482 75.3
2006 0.169 36.1
2007 0.325 114.0
2008 0.607 98.4
2009 0.672 90.4
2010 0.590 82.0
2011 0.365 66.9
2012 0.087 273.9
2013 0.485 104.9
2014 0.655 94.7
2015 0.653 87.0
2016 0.511 77.1
2017 0.217 48.5
2018 0.259 119.4
2019 0.585 99.7
2020 0.672 91.4
2021 0.609 83.3
2022 0.404 70.0
2023 0.098 323.3
2024 0.444 107.0
2025 0.644 95.8
2026 0.662 88.1
2027 0.538 78.8
2028 0.265 56.3
2029 0.181 129.0
2030 0.560 101.1

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic