01424-0645 A     1

 
 
01H 42M 23.63S -06 45' 17.3" P.A. 254.4 SEP 0.85 MAG 8.90,8.75 SP F2 DIST. 190.48 PC (621.35 L.Y.)
 
 
Coord 2000
01424-0645
Discov num
A     1
Comp
Coord arcsec 2000
01 42 23.63 -06 45 17.3
Date first
1899
Date last
2014
Obs
70
Pa first
165
Pa last
254
P.A. Now (θ)
254.4°
Sep first
0.3
Sep last
0.8
Sep. Now (ρ)
0.85"
Mag pri
8.90
Mag sec
8.75
delta mag (ΔM)
0.15
Spectral class
F2 (yellow-white)
Pri motion ra
-032
Sec motion ra
-032
Pri motion dec
-046
Sec motion dec
-046
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cetus
HIP
7968
Tycho2
4687-01865-1
HD
10508
ADS
1345
BD
BD-07 282
Distance
190.48
Distance ly
621.35
last precise pa
253.9
last precise sep
0.849
 
 
ORBITAL ELEMENTS
 
 
Period (P)637.62y Periastron (T)1888.34y Semi-major axis (a)0.844a
Eccentricity (e)0.454 Inclination (i)42° Longitude of periastron (ω)264.7°
Node (Ω)232.1° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.814 247.9
2001 0.816 248.3
2002 0.819 248.7
2003 0.821 249.1
2004 0.823 249.5
2005 0.826 249.9
2006 0.828 250.3
2007 0.830 250.7
2008 0.833 251.0
2009 0.835 251.4
2010 0.837 251.8
2011 0.839 252.2
2012 0.841 252.6
2013 0.843 252.9
2014 0.845 253.3
2015 0.847 253.7
2016 0.849 254.1
2017 0.851 254.4
2018 0.853 254.8
2019 0.855 255.2
2020 0.857 255.5
2021 0.859 255.9
2022 0.861 256.2
2023 0.862 256.6
2024 0.864 257.0
2025 0.866 257.3
2026 0.867 257.7
2027 0.869 258.0
2028 0.871 258.4
2029 0.872 258.7
2030 0.874 259.1

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic