03014+0615 HDS 385 (HD 18774)

 
 
03h 01m 22.67s +06° 14' 57.6" P.A. 173.00 sep 0.2 mag 9.54,9.78 Sp G4.5V+G7V dist. 55.31 pc (180.42 l.y.)
 
 
Coord 2000 03014+0615 Discov num HDS 385 Comp Coord arcsec 2000 03 01 22.67 +06 14 57.6
Date first 1991 Date last 2020 Obs 28
Pa first 168 Pa last 173.1 P.A. Now (θ) 190.5°
Sep first 0.2 Sep last 0.161 Sep. Now (ρ) 0.127"
Mag pri 9.54 Mag sec 9.78 delta mag (ΔM) 0.24 Spectral class G4.5V+G7V (yellow/yellow)
Pri motion ra +036 Sec motion ra
Pri motion dec -090 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 18774 Constellation Cetus SAO 110906 HIP 14075
Tycho2 0061-00855-1 Gaia DR2 7001556902355840 HD 18774 BD BD+05 438
Distance 55.31 Distance ly 180.42
 
 
ORBITAL ELEMENTS
 
 
Period (P)14.893y± 0.042 Periastron (T)2013.111y± 0.055 Semi-major axis (a)0.1169a± 0.0011
Eccentricity (e)0.419± 0.005 Inclination (i)54.3°± 0.7 Longitude of periastron (ω)195.5°± 1.8
Node (Ω)161.4°± 0.9 Notesn ReferenceTok2019c
Equinox Last observation2017 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 96.1 0.060
2001 127.9 0.094
2002 142.7 0.125
2003 152.2 0.147
2004 159.6 0.160
2005 166.2 0.164
2006 172.9 0.160
2007 180.2 0.148
2008 189.3 0.129
2009 202.2 0.105
2010 223.6 0.079
2011 261.7 0.061
2012 308.3 0.065
2013 346.3 0.068
2014 37.4 0.050
2015 101.1 0.063
2016 130.0 0.097
2017 143.9 0.127
2018 153.1 0.149
2019 160.3 0.161
2020 166.9 0.164
2021 173.6 0.159
2022 181.1 0.146
2023 190.5 0.127
2024 204.0 0.102
2025 226.7 0.076
2026 266.8 0.060
2027 312.7 0.066
2028 350.4 0.066
2029 44.9 0.049
2030 105.6 0.066


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



 
 


wds03014%2B0615c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic