06003-3102 HJ 3823 AC (HD 40887)

 
 
06h 00m 19.69s -31° 01' 54.0" P.A. 2.00 sep 2.9 mag 8.94,8.67 Sp K3/4V dist. 16.39 pc (53.46 l.y.)
 
 
Coord 2000 06003-3102 Discov num HJ 3823 Comp AC Coord arcsec 2000 06 00 19.69 -31 01 54.0
Date first 1835 Date last 2016 Obs 75
Pa first 132 Pa last 1.8 P.A. Now (θ) 1.8°
Sep first 3.3 Sep last 2.905 Sep. Now (ρ) 2.905"
Mag pri 8.94 Mag sec 8.67 delta mag (ΔM) 0.27 Spectral class K3/4V (yellow-orange)
Pri motion ra -047 Sec motion ra -044
Pri motion dec +041 Sec motion dec +102
Notes N O P (See Notes, Orbital solution, 100-year proper motion)
rPM=0.55
This double is physical.
 
 
06003-3102 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 06 00 20 -31 01 54 HU 1399 AB 2021 76 77 0.3 8.94 10.19 1.25 Y
Show HD 40887 06 00 20 -31 01 54 HJ 3823 AC 2016 75 2 2.9 8.94 8.67 0.27 Y <===
Show 06 00 20 -31 01 54 B 2595 AD 2015 20 145 39.7 8.94 12.80 3.86
Show 06 00 20 -31 01 54 TOK 9 CE 2021 25 161 0.2 8.67 13.13 4.46 Y
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 40887 Constellation Columba HIP 28442 Tycho2 7071-02044-1
HD 40887 GL Gl 225.2A CD CD-31 2902 CP CP-31 976
Distance 16.39 Distance ly 53.46
 
 
ORBITAL ELEMENTS
 
 
Period (P)2100y Periastron (T)1934y Semi-major axis (a)11.4a
Eccentricity (e)0.2 Inclination (i)100.2° Longitude of periastron (ω)85.1°
Node (Ω)147.6° Notesn ReferenceTok2020k
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 6.6 2.526
2001 6.0 2.557
2002 5.4 2.588
2003 4.8 2.620
2004 4.3 2.652
2005 3.7 2.684
2006 3.2 2.716
2007 2.7 2.749
2008 2.2 2.781
2009 1.7 2.814
2010 1.2 2.847
2011 0.7 2.880
2012 0.3 2.913
2013 359.8 2.946
2014 359.4 2.980
2015 359.0 3.013
2016 358.5 3.047
2017 358.1 3.081
2018 357.7 3.115
2019 357.3 3.149
2020 357.0 3.183
2021 356.6 3.217
2022 356.2 3.251
2023 355.8 3.286
2024 355.5 3.320
2025 355.1 3.354
2026 354.8 3.389
2027 354.5 3.424
2028 354.1 3.458
2029 353.8 3.493
2030 353.5 3.528


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



 
 


wds06003-3102n.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic