03003-1118 A  2611

 
 
03h 00m 20.37s -11 17' 39.3" P.A. 71.4 sep 0.11 mag 9.70,9.70 Sp G5
 
 
Coord 2000
03003-1118
Discov num
A  2611
Comp
Coord arcsec 2000
03 00 20.37 -11 17 39.3
Date first
1913
Date last
2015
Obs
21
Pa first
0
Pa last
237
P.A. Now (θ)
71.4°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.11"
Mag pri
9.70
Mag sec
9.70
delta mag (ΔM)
0
Spectral class
G5 (yellow)
Pri motion ra
+026
Sec motion ra
Pri motion dec
-043
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
237.4
Precise sep
0.152
Constellation
Eridanus
SAO
148713
Tycho2
5290-00699-1
HD
18740
ADS
2283
last precise pa
237.4
last precise sep
0.152
 
 
ORBITAL ELEMENTS
 
 
Period (P)75.28y Periastron (T)1954.11y Semi-major axis (a)0.14a
Eccentricity (e)0.577 Inclination (i)23.4° Longitude of periastron (ω)316.5°
Node (Ω)53.3° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2017
label rho theta
2000 0.209 205.2
2001 0.207 206.8
2002 0.205 208.4
2003 0.203 210.1
2004 0.201 211.8
2005 0.198 213.6
2006 0.196 215.4
2007 0.192 217.3
2008 0.189 219.2
2009 0.185 221.2
2010 0.181 223.3
2011 0.177 225.5
2012 0.172 227.8
2013 0.167 230.3
2014 0.162 232.9
2015 0.156 235.7
2016 0.150 238.7
2017 0.143 242.0
2018 0.136 245.6
2019 0.128 249.6
2020 0.121 254.1
2021 0.112 259.3
2022 0.104 265.3
2023 0.095 272.5
2024 0.086 281.1
2025 0.077 291.8
2026 0.069 305.2
2027 0.062 321.9
2028 0.057 341.9
2029 0.056 3.7
2030 0.059 25.1

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

grafico orbita





wds03003-1118e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03003-1118 A 2611 2007 17 39 0.2 9.70 9.70 G5 NOD 030020.37-111739.3
03003-1118 A 2611 2008 18 40 0.2 9.70 9.70 G5 NOD 030020.37-111739.3
03003-1118 A 2611 2011 19 45 0.2 9.70 9.70 G5 NOD 030020.37-111739.3
03003-1118 A 2611 2014 20 56 0.2 9.70 9.70 G5 O 030020.37-111739.3
03003-1118 A 2611 2015 21 237 0.2 9.70 9.70 G5 O 030020.37-111739.3

If you need more information about this double, apply for a data request form to the WDS.