14035+1047 GJ 538 (HD 122742)

 
 
14h 03m 32.35s +10° 47' 12.4" P.A. 253.00 sep 0.2 mag 6.30,10.00 Sp G6V dist. 16.98 pc (55.39 l.y.)
 
 
Coord 2000 14035+1047 Discov num GJ  538 Comp Coord arcsec 2000 14 03 32.35 +10 47 12.4
Date first 2003 Date last 2021 Obs 12
Pa first 80 Pa last 252.7 P.A. Now (θ) 82.5°
Sep first 0.2 Sep last 0.161 Sep. Now (ρ) 0.214"
Mag pri 6.30 Mag sec 10.00 delta mag (ΔM) 3.7 Spectral class G6V (yellow)
Pri motion ra +084 Sec motion ra
Pri motion dec -304 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 122742 Constellation Bootes SAO 100832 HIP 68682
Tycho2 0904-01278-1 HD 122742 HR 5273 GC 18985
GL Gl 538 BD BD+11 2625 Distance 16.98 Distance ly 55.39
 
 
ORBITAL ELEMENTS
 
 
Period (P)9.876y± 0 Periastron (T)2011.17y± 0 Semi-major axis (a)0.3156a± 0.0006
Eccentricity (e)0.48± 0.001 Inclination (i)96.9°± 0.2 Longitude of periastron (ω)183°± 0.2
Node (Ω)74°± 0.1 Notesn ReferenceTok2020e
Equinox Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 40.2 0.058
2001 258.0 0.150
2002 232.2 0.065
2003 85.1 0.167
2004 78.5 0.331
2005 75.9 0.430
2006 74.0 0.466
2007 72.2 0.445
2008 69.9 0.365
2009 65.4 0.225
2010 17.7 0.037
2011 256.1 0.160
2012 214.3 0.041
2013 83.6 0.191
2014 78.1 0.347
2015 75.7 0.437
2016 73.8 0.467
2017 72.0 0.438
2018 69.6 0.351
2019 64.4 0.203
2020 330.7 0.030
2021 254.3 0.164
2022 169.7 0.028
2023 82.5 0.214
2024 77.7 0.362
2025 75.4 0.444
2026 73.6 0.466
2027 71.7 0.430
2028 69.2 0.336
2029 63.1 0.180
2030 292.6 0.044


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



 
 


wds14035%2B1047a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic