10000+2433 CHR 145

 
 
10h 00m 01.70s +24 33' 09.9" P.A. 170.2 sep 0.17 mag 8.12,10.43 Sp K0V dist. 31.69 pc (103.37 l.y.)
 
 
Coord 2000
10000+2433
Discov num
CHR 145
Comp
Coord arcsec 2000
10 00 01.70 +24 33 09.9
Date first
1989
Date last
2014
Obs
18
Pa first
38
Pa last
183
P.A. Now (θ)
170.2°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.17"
Mag pri
8.12
Mag sec
10.43
delta mag (ΔM)
2.31
Spectral class
K0V (yellow-orange)
Pri motion ra
-236
Sec motion ra
Pri motion dec
-032
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
182.6
Precise sep
0.241
Cdsa2 id
CHR 145
Constellation
Leo
SAO
81134
HIP
49018
Tycho2
1961-01385-1
HD
86590
GL
NN 3580
BD
BD+25 2191
Ra deg
10.000472222222223
De deg
24.55275
Distance
31.69
Distance ly
103.37
last precise pa
182.6
last precise sep
0.241
 
 
ORBITAL ELEMENTS
 
 
Period (P)44.13y Periastron (T)2003.21y Semi-major axis (a)0.437a
Eccentricity (e)0.748 Inclination (i)96.3° Longitude of periastron (ω)271.6°
Node (Ω)197.5° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2011
label rho theta
2000 0.267 20.7
2001 0.229 18.9
2002 0.159 15.9
2003 0.033 356.6
2004 0.118 201.2
2005 0.204 196.8
2006 0.248 194.6
2007 0.271 192.9
2008 0.281 191.4
2009 0.283 190.0
2010 0.280 188.6
2011 0.272 187.1
2012 0.262 185.5
2013 0.249 183.8
2014 0.234 181.8
2015 0.218 179.6
2016 0.201 177.0
2017 0.183 173.9
2018 0.165 170.2
2019 0.147 165.5
2020 0.130 159.5
2021 0.113 151.8
2022 0.100 141.7
2023 0.089 128.8
2024 0.084 113.5
2025 0.085 97.5
2026 0.092 82.8
2027 0.104 70.9
2028 0.118 61.6
2029 0.135 54.5
2030 0.153 49.0

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

grafico orbita





wds10000%2B2433a.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
10000+2433 CHR 145 2004 13 197 0.2 8.12 10.43 K0V N D 100001.86+243310.2
10000+2433 CHR 145 2009 14 10 0.3 8.12 10.43 K0V N D 100001.86+243310.2
10000+2433 CHR 145 2011 17 188 0.3 8.12 10.43 K0V NOD 100001.86+243310.2
10000+2433 CHR 145 2014 18 183 0.2 8.12 10.43 K0V NO 100001.86+243310.2

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