01006+4719 MAD 1 (HD 5842)

 
 
01h 00m 35.58s +47° 19' 14.6" sep 0.9 mag 7.66,9.05 Sp A2
 
 
Coord 2000 01006+4719 Discov num MAD   1 Comp Coord arcsec 2000 01 00 35.58 +47 19 14.6
Date first 1845 Date last 2020 Obs 57
Pa first 45 Pa last 0.3 P.A. Now (θ) 0.3°
Sep first 1.0 Sep last 0.88 Sep. Now (ρ) 0.88"
Mag pri 7.66 Mag sec 9.05 delta mag (ΔM) 1.39 Spectral class A2 (white)
Pri motion ra -004 Sec motion ra -004
Pri motion dec -009 Sec motion dec -009
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 5842 Constellation Andromeda SAO 36840 Tycho2 3267-00263-1
Gaia DR2 402003686163964672 HD 5842 GC 1200 ADS 829
 
 
ORBITAL ELEMENTS
 
 
Period (P)925y± 83 Periastron (T)2127.14y± 3.32 Semi-major axis (a)0.93a± 0.051
Eccentricity (e)0.389± 0.024 Inclination (i)136.4°± 1.8 Longitude of periastron (ω)94.2°± 6.1
Node (Ω)5.2°± 3.2 Notes ReferenceLin2012a
Equinox2000 Last observation2007 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 4.8 0.809
2001 4.4 0.806
2002 4.1 0.804
2003 3.7 0.801
2004 3.4 0.798
2005 3.0 0.795
2006 2.7 0.792
2007 2.3 0.790
2008 2.0 0.787
2009 1.6 0.784
2010 1.2 0.781
2011 0.9 0.778
2012 0.5 0.775
2013 0.1 0.772
2014 359.7 0.769
2015 359.4 0.766
2016 359.0 0.762
2017 358.6 0.759
2018 358.2 0.756
2019 357.8 0.753
2020 357.4 0.750
2021 357.0 0.746
2022 356.6 0.743
2023 356.2 0.740
2024 355.8 0.736
2025 355.4 0.733
2026 354.9 0.730
2027 354.5 0.726
2028 354.1 0.723
2029 353.7 0.719
2030 353.2 0.716


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


 
  


wds01006%2B4719b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic