04024-2832 DAW 79 (HD 25546)

 
 
04h 02m 21.85s -28° 31' 51.1" P.A. 124.00 sep 0.5 mag 8.28,8.71 Sp F8/G0V dist. 61.39 pc (200.25 l.y.)
 
 
Coord 2000 04024-2832 Discov num DAW  79 Comp Coord arcsec 2000 04 02 21.85 -28 31 51.1
Date first 1920 Date last 2020 Obs 39
Pa first 132 Pa last 123.9 P.A. Now (θ) 123.7°
Sep first 0.6 Sep last 0.527 Sep. Now (ρ) 0.528"
Mag pri 8.28 Mag sec 8.71 delta mag (ΔM) 0.43 Spectral class F8/G0V (yellow-white)
Pri motion ra -029 Sec motion ra
Pri motion dec -036 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 25546 Constellation Eridanus SAO 169052 HIP 18839
Tycho2 6461-01335-1 HD 25546 GC 4859 ADS 2952
CD CD-28 1379 CP CP-28 443 Distance 61.39 Distance ly 200.25
 
 
ORBITAL ELEMENTS
 
 
Period (P)97.138y Periastron (T)1999.55y Semi-major axis (a)0.454a
Eccentricity (e)0.703 Inclination (i)130.3° Longitude of periastron (ω)249.8°
Node (Ω)155.1° Notesn ReferenceMsn2011c
Equinox2000 Last observation2010 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 255.6 0.089
2001 215.5 0.104
2002 191.3 0.141
2003 177.6 0.182
2004 168.9 0.220
2005 162.6 0.254
2006 157.7 0.285
2007 153.8 0.313
2008 150.5 0.338
2009 147.6 0.360
2010 145.0 0.380
2011 142.7 0.399
2012 140.6 0.416
2013 138.6 0.431
2014 136.8 0.445
2015 135.1 0.458
2016 133.5 0.470
2017 131.9 0.481
2018 130.4 0.491
2019 129.0 0.500
2020 127.6 0.508
2021 126.2 0.515
2022 124.9 0.522
2023 123.7 0.528
2024 122.4 0.534
2025 121.2 0.538
2026 120.0 0.543
2027 118.8 0.547
2028 117.6 0.550
2029 116.5 0.553
2030 115.3 0.555


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


 
  


wds04024-2832b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic