02171+3413 MKT 5 Aa,Ab

 
 
02h 17m 03.23s +34° 13' 27.2" P.A. 26.00 sep 0.0 mag 5.00,6.90 Sp F9V dist. 10.78 pc (35.16 l.y.)
 
 
Coord 2000 02171+3413 Discov num MKT   5 Comp Aa,Ab Coord arcsec 2000 02 17 03.23 +34 13 27.2
Date first 1990 Date last 1992 Obs 21
Pa first 296 Pa last 26.4 P.A. Now (θ) 26.4°
Sep first 0.0 Sep last 0.01 Sep. Now (ρ) 0.01"
Mag pri 5.00 Mag sec 6.90 delta mag (ΔM) 1.9 Spectral class F9V (yellow-white)
Pri motion ra +115 Sec motion ra
Pri motion dec -025 Sec motion dec
Notes N O P (See Notes, Orbital solution, 100-year proper motion)
This double is physical.
 
 
02171+3413 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 55420 02 17 03 +34 13 27 MKT 5 Aa,Ab 1992 21 26 0.0 5.00 6.90 1.90 Y <===
Show Del Tri 55420 02 17 03 +34 13 27 DOR 66 AB 2010 6 301 166.8 4.85 13.60 8.75
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Triangulum SAO 55420 HIP 10644 Tycho2 2318-01874-1
HD 13974 HR 660 GC 2733 ADS 1739
GL Gl 92 BD BD+33 395 Bayer Delta Trianguli Bayer name Del Tri
Flamsteed 8 Trianguli Flamsteed name 8 Tri Distance 10.78 Distance ly 35.16
Bayer greek δ Tri
 
 
ORBITAL ELEMENTS
 
 
Period (P)10.01969d± 0.00017 Periastron (T)48919.17d (1992.812y)± 0.8 Semi-major axis (a)9.8m± 0.13
Eccentricity (e)0.011± 0.0055 Inclination (i)163°± 3.6 Longitude of periastron (ω)171°± 29
Node (Ω)37°± 1.9 Notesn ReferencePbx2000b
Equinox Last observation Grade1(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 218.5 0.010
2001-01-01 54.9 0.010
2002-01-01 252.3 0.010
2003-01-01 88.0 0.010
2004-01-01 287.5 0.009
2005-01-01 122.9 0.009
2006-01-01 323.4 0.009
2007-01-01 158.5 0.009
2008-01-01 357.9 0.010
2009-01-01 193.1 0.010
2010-01-01 30.6 0.010
2011-01-01 226.6 0.010
2012-01-01 62.8 0.010
2013-01-01 260.8 0.010
2014-01-01 96.3 0.010
2015-01-01 296.3 0.009
2016-01-01 131.6 0.009
2017-01-01 332.0 0.009
2018-01-01 167.1 0.009
2019-01-01 6.0 0.010
2020-01-01 201.3 0.010
2021-01-01 38.4 0.010
2022-01-01 234.8 0.010
2023-01-01 70.7 0.010
2024-01-01 269.3 0.009
2025-01-01 104.8 0.009
2026-01-01 305.0 0.009
2027-01-01 140.3 0.009
2028-01-01 340.4 0.010
2029-01-01 175.5 0.010
2030-01-01 14.0 0.010


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



 
 


wds02171%2B3413a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic