04002+0818 A 1936 BC

 
 
04h 00m 09.54s +08° 18' 18.9" P.A. 285.00 sep 0.4 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 2021 Obs 22
Pa first 136 Pa last 285 P.A. Now (θ) 285°
Sep first 0.4 Sep last 0.388 Sep. Now (ρ) 0.388"
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 wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 04 00 09 +08 18 15 A 1936 A,BC 2013 17 26 4.1 10.48 10.33 0.15
Show 04 00 10 +08 18 19 A 1936 BC 2021 22 285 0.4 9.60 9.70 0.10 Y <===
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Taurus Gaia DR2 3301322493199092608 ADS 2923
 
 
ORBITAL ELEMENTS
 
 
Period (P)225y Periastron (T)1978.87y Semi-major axis (a)0.425a
Eccentricity (e)0.179 Inclination (i)152.4° Longitude of periastron (ω)51.3°
Node (Ω)68.9° Notes ReferenceTok2017c
Equinox2000 Last observation2016 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 328.8 0.326
2001 326.5 0.328
2002 324.1 0.331
2003 321.9 0.333
2004 319.6 0.335
2005 317.4 0.338
2006 315.2 0.341
2007 313.0 0.343
2008 310.9 0.346
2009 308.8 0.349
2010 306.8 0.352
2011 304.8 0.355
2012 302.8 0.359
2013 300.8 0.362
2014 298.9 0.365
2015 297.1 0.369
2016 295.2 0.372
2017 293.4 0.375
2018 291.7 0.379
2019 289.9 0.382
2020 288.2 0.386
2021 286.5 0.389
2022 284.9 0.392
2023 283.3 0.396
2024 281.7 0.399
2025 280.1 0.403
2026 278.5 0.406
2027 277.0 0.409
2028 275.5 0.412
2029 274.1 0.415
2030 272.6 0.419


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



 
 


wds04002%2B0818e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic