00210+6740 HJ 1018 (HD 1624)

 
 
00h 20m 57.23s +67 40' 03.0" P.A. 87.00 sep 1.5 mag 8.57,8.89 Sp G5 dist. 31.74 pc (103.54 l.y.)
 
 
Coord 2000 00210+6740 Discov num HJ 1018 Comp Coord arcsec 2000 00 20 57.23 +67 40 03.0
Date first 1828 Date last 2020 Obs 95
Pa first 84 Pa last 87 P.A. Now (θ) 87°
Sep first 1.5 Sep last 1.529 Sep. Now (ρ) 1.529"
Mag pri 8.57 Mag sec 8.89 delta mag (ΔM) 0.32 Spectral class G5 (yellow)
Pri motion ra +026 Sec motion ra +023
Pri motion dec +074 Sec motion dec +074
Notes N O (See Notes, Orbital solution)
rPM=0.038 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 1624 Constellation Cepheus SAO 11124 HIP 1674
Tycho2 4294-00406-1 Gaia DR2 528767648745379200 HD 1624 GC 416
ADS 283 BD BD+66 19 Distance 31.74 Distance ly 103.54
 
 
ORBITAL ELEMENTS
 
 
Period (P)154.2328y± 3.6474 Periastron (T)1942.7553y± 1.6671 Semi-major axis (a)0.97822a± 0.05546
Eccentricity (e)0.91379± 0.02389 Inclination (i)88.271°± 1.571 Longitude of periastron (ω)210.113°± 10.154
Node (Ω)86.735°± 1.129 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 87.5 1.626
2001 87.5 1.629
2002 87.6 1.633
2003 87.6 1.635
2004 87.6 1.638
2005 87.6 1.639
2006 87.6 1.641
2007 87.6 1.642
2008 87.6 1.643
2009 87.6 1.643
2010 87.6 1.643
2011 87.6 1.642
2012 87.7 1.641
2013 87.7 1.640
2014 87.7 1.638
2015 87.7 1.636
2016 87.7 1.633
2017 87.7 1.630
2018 87.7 1.627
2019 87.7 1.623
2020 87.7 1.619
2021 87.7 1.615
2022 87.8 1.610
2023 87.8 1.605
2024 87.8 1.599
2025 87.8 1.593
2026 87.8 1.587
2027 87.8 1.580
2028 87.8 1.573
2029 87.8 1.565
2030 87.8 1.557


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



 
 


wds00210%2B6740b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic