00263-4218 CRU 9004 (Ankaa)

 
 
00h 26m 17.05s -42 18' 21.6" P.A. 132.00 sep 183.0 mag 2.40,9.40 Sp K0.5IIIb dist. 25.97 pc (84.71 l.y.)
 
 
Coord 2000 00263-4218 Discov num CRU9004 Comp Coord arcsec 2000 00 26 17.05 -42 18 21.6
Date first 1879 Date last 2010 Obs 4
Pa first 141 Pa last 132.3 P.A. Now (θ) 132.3°
Sep first 249.7 Sep last 183.04 Sep. Now (ρ) 183.04"
Mag pri 2.40 Mag sec 9.40 delta mag (ΔM) 7 Spectral class K0.5IIIb (yellow-orange)
Pri motion ra +233 Sec motion ra +030
Pri motion dec -356 Sec motion dec +002
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=0.967
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Ankaa Constellation Phoenix SAO 215093 HIP 2081
Tycho2 7527-01031-1 HD 2261 HR 99 GC 519
CD CD-42 116 CP CP-42 34 Bayer Alpha Phoenicis Bayer name Alp Phe
FK5 12 Distance 25.97 Distance ly 84.71 Bayer greek α Phe
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)3848.8d (10.54y) Periastron (T)16201.8d (1903.235y) Semi-major axis (a)103.5m± 8.2
Eccentricity (e)0.34 Inclination (i)128°± 5.4 Longitude of periastron (ω)19.8°
Node (Ω)242.8°± 3.9 Notesn ReferenceJnc2005
Equinox Last observation1992 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000 104.0 0.077
2001 79.9 0.112
2002 65.9 0.132
2003 54.3 0.136
2004 42.0 0.125
2005 25.6 0.102
2006 357.7 0.075
2007 307.9 0.061
2008 257.6 0.070
2009 208.6 0.057
2010 130.2 0.057
2011 90.6 0.095
2012 72.8 0.123
2013 60.4 0.136
2014 48.9 0.132
2015 35.3 0.116
2016 14.9 0.089
2017 337.3 0.065
2018 282.7 0.064
2019 237.3 0.068
2020 172.9 0.049
2021 106.8 0.074
2022 81.2 0.110
2023 66.8 0.131
2024 55.2 0.136
2025 43.0 0.126
2026 27.1 0.104
2027 0.5 0.076
2028 312.1 0.061
2029 260.9 0.069
2030 213.3 0.059


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



 
 


wds00262-4217s.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)46.1512d± 0.0002 Periastron (T)54324.14d (2007.61y)± 0.03 Semi-major axis (a)2.5m± 0.5
Eccentricity (e)0.285± 0.001 Inclination (i)166.5°± 2.6 Longitude of periastron (ω)320.6°± 0.3
Node (Ω)270.2°± 11.2 Notes ReferenceSaJ2011
Equinox Last observation Grade9(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 63.8 0.003
2001-01-01 87.7 0.003
2002-01-01 107.4 0.003
2003-01-01 125.4 0.003
2004-01-01 143.5 0.003
2005-01-01 163.2 0.003
2006-01-01 186.2 0.003
2007-01-01 215.6 0.002
2008-01-01 255.5 0.002
2009-01-01 308.5 0.002
2010-01-01 3.7 0.002
2011-01-01 44.8 0.002
2012-01-01 73.3 0.003
2013-01-01 95.2 0.003
2014-01-01 114.1 0.003
2015-01-01 132.0 0.003
2016-01-01 150.5 0.003
2017-01-01 171.1 0.003
2018-01-01 196.1 0.003
2019-01-01 228.8 0.002
2020-01-01 273.5 0.002
2021-01-01 329.7 0.002
2022-01-01 20.6 0.002
2023-01-01 56.3 0.002
2024-01-01 81.9 0.003
2025-01-01 102.4 0.003
2026-01-01 120.7 0.003
2027-01-01 138.6 0.003
2028-01-01 157.7 0.003
2029-01-01 179.6 0.003
2030-01-01 207.0 0.002


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



 
 


wds00356-3945o.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic