00424+0410 STT 18 AB (HD 3972)

 
 
00h 42m 23.21s +04 10' 00.0" P.A. 211.00 sep 2.1 mag 7.86,9.71 Sp F8V dist. 59.99 pc (195.69 l.y.)
 
 
Coord 2000 00424+0410 Discov num STT  18 Comp AB Coord arcsec 2000 00 42 23.21 +04 10 00.0
Date first 1843 Date last 2017 Obs 177
Pa first 91 Pa last 211.4 P.A. Now (θ) 211.4°
Sep first 1.0 Sep last 2.065 Sep. Now (ρ) 2.065"
Mag pri 7.86 Mag sec 9.71 delta mag (ΔM) 1.85 Spectral class F8V (yellow-white)
Pri motion ra +027 Sec motion ra +027
Pri motion dec -038 Sec motion dec -038
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
00424+0410 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 3972 109392 00 42 23 +04 10 00 STT 18 AB 2017 177 211 2.1 7.86 9.71 1.85 Y <===
Show 109392 00 42 23 +04 10 00 A 3107 AC 2015 13 275 46.9 7.86 13.45 5.59
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 3972 Constellation Pisces SAO 109392 HIP 3326
Tycho2 0014-00641-1 Gaia DR2 2551241944269355776 HD 3972 ADS 588
BD BD+03 93 Distance 59.99 Distance ly 195.69
 
 
ORBITAL ELEMENTS
 
 
Period (P)386.51y Periastron (T)1828.13y Semi-major axis (a)3.296a
Eccentricity (e)0.834 Inclination (i)75.3° Longitude of periastron (ω)284.3°
Node (Ω)76.5° Notesn ReferenceHrt2001b
Equinox2000 Last observation1999 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 204.0 1.882
2001 204.4 1.893
2002 204.8 1.903
2003 205.2 1.914
2004 205.6 1.924
2005 205.9 1.935
2006 206.3 1.945
2007 206.7 1.956
2008 207.1 1.967
2009 207.4 1.977
2010 207.8 1.988
2011 208.1 1.998
2012 208.5 2.009
2013 208.8 2.019
2014 209.2 2.030
2015 209.5 2.040
2016 209.9 2.051
2017 210.2 2.061
2018 210.5 2.072
2019 210.9 2.082
2020 211.2 2.092
2021 211.5 2.103
2022 211.8 2.113
2023 212.1 2.124
2024 212.5 2.134
2025 212.8 2.144
2026 213.1 2.154
2027 213.4 2.165
2028 213.7 2.175
2029 214.0 2.185
2030 214.3 2.195


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



 
 


wds00424%2B0410a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic