02424+3837 EVT 1 Aa,Ab

 
 
02h 42m 21.31s +38° 37' 07.2" P.A. 290.00 sep 0.0 mag 7.11,10.00 Sp G5 dist. 45.45 pc (148.26 l.y.)
 
 
Coord 2000 02424+3837 Discov num EVT   1 Comp Aa,Ab Coord arcsec 2000 02 42 21.31 +38 37 07.2
Date first 2008 Date last 2009 Obs 6
Pa first 46 Pa last 290.2 P.A. Now (θ) 290.2°
Sep first 0.0 Sep last 0.025 Sep. Now (ρ) 0.025"
Mag pri 7.11 Mag sec 10.00 delta mag (ΔM) 2.89 Spectral class G5 (yellow)
Pri motion ra +077 Sec motion ra
Pri motion dec -108 Sec motion dec
Notes N O K (See Notes, Orbital solution, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
 
 
02424+3837 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 55798 02 42 21 +38 37 07 EVT 1 Aa,Ab 2009 6 290 0.0 7.11 10.00 2.89 Y <===
Show HD 16760 55798 02 42 21 +38 37 07 AG 49 AB 2019 26 344 14.3 8.84 10.38 1.54
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Perseus SAO 55798 HIP 12638 Tycho2 2845-02243-1
Gaia DR2 334156706263100416 HD 16760 BD BD+37 604 Distance 45.45
Distance ly 148.26
 
 
ORBITAL ELEMENTS
 
 
Period (P)466.5d± 0.4 Periastron (T)53336.5m (2004.908y)± 3 Semi-major axis (a)25.5m± 2.8
Eccentricity (e)0.084± 0.003 Inclination (i)2.6°± 0.5 Longitude of periastron (ω)243°± 2
Node (Ω)86.9°± 1.1 Notes ReferenceEvT2012
Equinox Last observation2009 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 35.1 0.024
2001-01-01 304.5 0.024
2002-01-01 221.0 0.026
2003-01-01 151.8 0.028
2004-01-01 83.0 0.026
2005-01-01 0.5 0.024
2006-01-01 269.6 0.024
2007-01-01 192.7 0.027
2008-01-01 125.6 0.027
2009-01-01 52.8 0.025
2010-01-01 324.2 0.023
2011-01-01 237.4 0.025
2012-01-01 166.0 0.028
2013-01-01 98.5 0.027
2014-01-01 19.6 0.024
2015-01-01 288.3 0.024
2016-01-01 207.9 0.026
2017-01-01 139.9 0.028
2018-01-01 69.6 0.026
2019-01-01 344.1 0.023
2020-01-01 254.6 0.025
2021-01-01 180.4 0.027
2022-01-01 113.4 0.027
2023-01-01 38.0 0.025
2024-01-01 307.7 0.023
2025-01-01 223.6 0.026
2026-01-01 154.1 0.028
2027-01-01 85.6 0.026
2028-01-01 3.7 0.024
2029-01-01 272.6 0.024
2030-01-01 195.2 0.027


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



 
 


wds02424%2B3837a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic