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
 
 
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)74.4y Periastron (T)1950y Semi-major axis (a)0.16a
Eccentricity (e)0.51 Inclination (i)46.4° Longitude of periastron (ω)314°
Node (Ω)220° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2008
label rho theta
2000 0.213 25.1
2001 0.211 26.7
2002 0.208 28.4
2003 0.206 30.1
2004 0.202 31.8
2005 0.199 33.7
2006 0.194 35.6
2007 0.190 37.6
2008 0.184 39.7
2009 0.178 41.9
2010 0.172 44.3
2011 0.164 46.9
2012 0.156 49.8
2013 0.148 52.9
2014 0.138 56.5
2015 0.128 60.7
2016 0.118 65.5
2017 0.106 71.4
2018 0.094 78.7
2019 0.083 88.1
2020 0.072 100.5
2021 0.063 116.7
2022 0.059 136.7
2023 0.059 158.1
2024 0.064 177.6
2025 0.071 193.7
2026 0.079 206.7
2027 0.086 217.5
2028 0.091 226.8
2029 0.096 235.2
2030 0.099 243.0

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