04002+0818 A  1936BC

 
 
04H 00M 09.54S +08 18' 18.9" P.A. 200.4 SEP 0.28 MAG 9.60,9.70 SP K0
 
 
Coord 2000
04002+0818
Discov num
A  1936
Comp
BC
Coord arcsec 2000
04 00 09.54 +08 18 18.9
Date first
1908
Date last
2008
Obs
19
Pa first
136
Pa last
310
P.A. Now (θ)
200.4°
Sep first
0.4
Sep last
0.3
Sep. Now (ρ)
0.28"
Mag pri
9.60
Mag sec
9.70
delta mag (ΔM)
0.1
Spectral class
K0 (yellow-orange)
Pri motion ra
+029
Sec motion ra
Pri motion dec
+018
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
04002+0818 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 04002+0818 A 1936 A,BC 1908 2013 17 26 4.1 10.48 10.33 0.15
Show 04002+0818 A 1936 BC 1908 2008 19 200 0.3 9.60 9.70 0.10 Y <===
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Taurus
ADS
2923
last precise pa
309.5
last precise sep
0.349
 
 
ORBITAL ELEMENTS
 
 
Period (P)169y Periastron (T)2000y Semi-major axis (a)0.371a
Eccentricity (e)0.47 Inclination (i)127° Longitude of periastron (ω)69°
Node (Ω)7.5° Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation
label rho theta
2000 0.131 310.0
2001 0.125 300.5
2002 0.121 290.1
2003 0.121 279.5
2004 0.123 268.9
2005 0.129 259.1
2006 0.137 250.2
2007 0.146 242.4
2008 0.157 235.6
2009 0.169 229.8
2010 0.182 224.7
2011 0.195 220.3
2012 0.207 216.5
2013 0.220 213.0
2014 0.232 210.0
2015 0.244 207.2
2016 0.256 204.7
2017 0.267 202.5
2018 0.278 200.4
2019 0.288 198.4
2020 0.298 196.6
2021 0.307 194.9
2022 0.316 193.3
2023 0.324 191.8
2024 0.332 190.3
2025 0.340 189.0
2026 0.347 187.6
2027 0.354 186.4
2028 0.360 185.1
2029 0.366 184.0
2030 0.371 182.8

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