02104-5049 ESG   1

 
 
02H 10M 25.98S -50 49' 25.2" P.A. 169.8 SEP 2.99 MAG 6.17,13.20 SP K0V+DQ6 DIST. 10.78 PC (35.16 L.Y.)
 
 
Coord 2000
02104-5049
Discov num
ESG   1
Comp
Coord arcsec 2000
02 10 25.98 -50 49 25.2
Date first
2000
Date last
2012
Obs
7
Pa first
119
Pa last
89
P.A. Now (θ)
169.8°
Sep first
1.7
Sep last
2.4
Sep. Now (ρ)
2.99"
Mag pri
6.17
Mag sec
13.20
delta mag (ΔM)
7.03
Spectral class
K0V+DQ6 (yellow-orange)
Pri motion ra
+209
Sec motion ra
Pri motion dec
+065
Sec motion dec
Notes
N O P (See Notes, Orbital solution, 100-year proper motion)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Eridanus
SAO
232658
HIP
10138
Tycho2
8048-01022-1
HD
13445
HR
637
GL
Gl 86
CD
CD-51 532
CP
CP-51 282
Distance
10.78
Distance ly
35.16
last precise pa
88.9
last precise sep
2.351
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)353y Periastron (T)1984y Semi-major axis (a)4.37a
Eccentricity (e)0.6185 Inclination (i)150° Longitude of periastron (ω)19.71°
Node (Ω)300° Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation2005
label rho theta
2000 1.947 209.1
2001 1.999 205.7
2002 2.053 202.4
2003 2.109 199.4
2004 2.168 196.5
2005 2.227 193.7
2006 2.288 191.1
2007 2.350 188.7
2008 2.413 186.3
2009 2.477 184.1
2010 2.541 182.0
2011 2.606 180.0
2012 2.670 178.1
2013 2.735 176.3
2014 2.800 174.6
2015 2.865 172.9
2016 2.930 171.3
2017 2.994 169.8
2018 3.058 168.4
2019 3.122 167.0
2020 3.186 165.6
2021 3.249 164.4
2022 3.311 163.1
2023 3.374 161.9
2024 3.435 160.8
2025 3.497 159.7
2026 3.557 158.6
2027 3.617 157.6
2028 3.677 156.6
2029 3.736 155.6
2030 3.794 154.7

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
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)69.7y Periastron (T)1983y Semi-major axis (a)1.69a
Eccentricity (e)0.3974 Inclination (i)150° Longitude of periastron (ω)341.95°
Node (Ω)335° Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation2005
label rho theta
2000 1.694 220.0
2001 1.750 216.0
2002 1.805 212.3
2003 1.859 208.8
2004 1.910 205.5
2005 1.960 202.4
2006 2.007 199.4
2007 2.051 196.6
2008 2.092 193.9
2009 2.131 191.2
2010 2.167 188.7
2011 2.199 186.2
2012 2.229 183.8
2013 2.255 181.5
2014 2.278 179.2
2015 2.297 177.0
2016 2.313 174.8
2017 2.325 172.6
2018 2.334 170.4
2019 2.339 168.3
2020 2.341 166.2
2021 2.338 164.0
2022 2.332 161.9
2023 2.322 159.7
2024 2.308 157.5
2025 2.290 155.3
2026 2.268 153.0
2027 2.242 150.7
2028 2.212 148.4
2029 2.178 145.9
2030 2.140 143.4

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