01450+5707 BU 453 AB (HD 236857)

 
 
01h 45m 00.71s +57° 07' 00.3" P.A. 111.00 sep 0.8 mag 10.04,10.45 Sp G5 dist. 101.73 pc (331.84 l.y.)
 
 
Coord 2000 01450+5707 Discov num BU  453 Comp AB Coord arcsec 2000 01 45 00.71 +57 07 00.3
Date first 1877 Date last 2016 Obs 48
Pa first 219 Pa last 110.7 P.A. Now (θ) 110.7°
Sep first 1.0 Sep last 0.78 Sep. Now (ρ) 0.78"
Mag pri 10.04 Mag sec 10.45 delta mag (ΔM) 0.41 Spectral class G5 (yellow)
Pri motion ra +000 Sec motion ra
Pri motion dec +003 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
01450+5707 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 236857 22585 01 45 01 +57 07 00 BU 453 AB 2016 48 111 0.8 10.04 10.45 0.41 Y <===
Show 22585 01 45 01 +57 07 00 FMR 22 AC 2015 4 139 8.8 10.04 16.40 6.36
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 236857 Constellation Cassiopeia SAO 22585 HIP 8166
Tycho2 3679-01332-1 Gaia DR2 505846615172217600 HD 236857 ADS 1371
BD BD+56 338 Distance 101.73 Distance ly 331.84
 
 
ORBITAL ELEMENTS
 
 
Period (P)663.7y Periastron (T)1953.71y Semi-major axis (a)1.204a
Eccentricity (e)0.689 Inclination (i)32.5° Longitude of periastron (ω)336.5°
Node (Ω)14.5° Notesn ReferenceSca2017a
Equinox2000 Last observation2017 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 95.1 0.657
2001 96.2 0.665
2002 97.3 0.673
2003 98.3 0.682
2004 99.3 0.690
2005 100.3 0.698
2006 101.3 0.707
2007 102.3 0.715
2008 103.2 0.723
2009 104.1 0.732
2010 105.0 0.740
2011 105.9 0.748
2012 106.7 0.757
2013 107.5 0.765
2014 108.3 0.774
2015 109.1 0.782
2016 109.9 0.790
2017 110.7 0.799
2018 111.4 0.807
2019 112.2 0.815
2020 112.9 0.824
2021 113.6 0.832
2022 114.3 0.840
2023 114.9 0.849
2024 115.6 0.857
2025 116.2 0.865
2026 116.9 0.873
2027 117.5 0.882
2028 118.1 0.890
2029 118.7 0.898
2030 119.3 0.906


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



 
 


wds01450%2B5707b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic