23078+3947 STF 2979 (HD 218453)

 
 
23h 07m 47.88s +39° 47' 46.8" P.A. 229.00 sep 2.8 mag 7.92,9.99 Sp F0IV dist. 112.36 pc (366.52 l.y.)
 
 
Coord 2000 23078+3947 Discov num STF2979 Comp Coord arcsec 2000 23 07 47.88 +39 47 46.8
Date first 1828 Date last 2022 Obs 39
Pa first 221 Pa last 228.9 P.A. Now (θ) 228.9°
Sep first 2.3 Sep last 2.78 Sep. Now (ρ) 2.78"
Mag pri 7.92 Mag sec 9.99 delta mag (ΔM) 2.07 Spectral class F0IV (yellow-white)
Pri motion ra +043 Sec motion ra +043
Pri motion dec +022 Sec motion dec +022
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 218453 Constellation Andromeda SAO 73019 HIP 114214
Tycho2 3220-01130-1 Gaia DR2 1929944726984594944 HD 218453 GC 32218
ADS 16527 BD BD+39 5008 Distance 112.36 Distance ly 366.52
 
 
ORBITAL ELEMENTS
 
 
Period (P)2470.5611y± 1086.6835 Periastron (T)2206.2238y± 535.5234 Semi-major axis (a)5.58854a± 2.94827
Eccentricity (e)0.87206± 0.11794 Inclination (i)77.441°± 6.457 Longitude of periastron (ω)270.253°± 12.266
Node (Ω)64.682°± 35.861 Notes ReferenceIzm2019
Equinox Last observation2015 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 227.7 2.827
2001 227.7 2.824
2002 227.8 2.821
2003 227.8 2.819
2004 227.9 2.816
2005 228.0 2.813
2006 228.0 2.810
2007 228.1 2.807
2008 228.1 2.805
2009 228.2 2.802
2010 228.3 2.799
2011 228.3 2.796
2012 228.4 2.793
2013 228.5 2.790
2014 228.5 2.787
2015 228.6 2.784
2016 228.6 2.781
2017 228.7 2.777
2018 228.8 2.774
2019 228.8 2.771
2020 228.9 2.768
2021 229.0 2.765
2022 229.0 2.761
2023 229.1 2.758
2024 229.1 2.755
2025 229.2 2.751
2026 229.3 2.748
2027 229.3 2.744
2028 229.4 2.741
2029 229.5 2.737
2030 229.5 2.733


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



 
 


wds23078%2B3947a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic