08589+0829 DEL 2

 
 
08h 58m 56.32s +08° 28' 26.1" P.A. 170.00 sep 0.1 mag 10.70,12.70 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 2023 Obs 21
Pa first 90 Pa last 169.6 P.A. Now (θ) 95.8°
Sep first 0.6 Sep last 0.083 Sep. Now (ρ) 0.644"
Mag pri 10.70 Mag sec 12.70 delta mag (ΔM) 2 Spectral class M3.5V (red)
Pri motion ra +371 Sec motion ra
Pri motion dec -323 Sec motion dec
Notes N O R (See Notes, Orbital solution, Red magnitudes)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cancer
 
 
ORBITAL ELEMENTS
 
 
Period (P)5.534y± 0.0036 Periastron (T)2006.434y± 0.39 Semi-major axis (a)0.3925a± 0.0019
Eccentricity (e)0.7723± 0.0082 Inclination (i)123.1°± 1.2 Longitude of periastron (ω)19.9°± 1.2
Node (Ω)279.89°± 0.6 Notesn ReferenceMsn2023
Equinox Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 64.6 0.340
2001 199.3 0.066
2002 103.8 0.506
2003 93.9 0.659
2004 86.0 0.646
2005 75.5 0.490
2006 37.1 0.170
2007 114.8 0.318
2008 98.5 0.602
2009 90.3 0.671
2010 81.8 0.592
2011 66.5 0.362
2012 251.5 0.075
2013 104.7 0.487
2014 94.4 0.655
2015 86.6 0.652
2016 76.5 0.505
2017 44.2 0.196
2018 117.4 0.286
2019 99.2 0.591
2020 90.8 0.672
2021 82.5 0.602
2022 68.2 0.383
2023 284.2 0.093
2024 105.8 0.467
2025 95.0 0.649
2026 87.1 0.657
2027 77.4 0.520
2028 49.6 0.222
2029 120.7 0.251
2030 99.9 0.579
2031 91.3 0.671
2032 83.1 0.611
2033 69.7 0.403
2034 310.0 0.096
2035 106.9 0.446
2036 95.6 0.643
2037 87.7 0.661
2038 78.2 0.534
2039 53.9 0.248
2040 125.1 0.213
2041 100.6 0.566
2042 91.8 0.670
2043 83.8 0.620
2044 71.1 0.423
2045 335.6 0.097
2046 108.1 0.423
2047 96.1 0.636
2048 88.2 0.664
2049 79.0 0.547
2050 57.4 0.273


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds08589%2B0829e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic