01094-5636 HU 1342 (HD 6996)

 
 
01h 09m 22.09s -56 35' 42.4" P.A. 319.00 sep 0.6 mag 7.78,8.25 Sp F5IV/V dist. 98.81 pc (322.32 l.y.)
 
 
Coord 2000 01094-5636 Discov num HU 1342 Comp Coord arcsec 2000 01 09 22.09 -56 35 42.4
Date first 1913 Date last 2019 Obs 25
Pa first 348 Pa last 319.4 P.A. Now (θ) 319.4°
Sep first 0.3 Sep last 0.579 Sep. Now (ρ) 0.579"
Mag pri 7.78 Mag sec 8.25 delta mag (ΔM) 0.47 Spectral class F5IV/V (yellow-white)
Pri motion ra +141 Sec motion ra
Pri motion dec -020 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 6996 Constellation Phoenix SAO 232315 HIP 5428
Tycho2 8476-01001-1 HD 6996 GC 1407 CP CP-57 251
Distance 98.81 Distance ly 322.32
 
 
ORBITAL ELEMENTS
 
 
Period (P)79.1y Periastron (T)1967.7y Semi-major axis (a)0.26a
Eccentricity (e)0.457 Inclination (i)118.1° Longitude of periastron (ω)
Node (Ω)153.1° Notesn ReferenceHrt2010a
Equinox2000 Last observation2009 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 337.9 0.365
2001 336.9 0.369
2002 336.0 0.372
2003 335.1 0.375
2004 334.1 0.377
2005 333.2 0.378
2006 332.3 0.378
2007 331.4 0.378
2008 330.5 0.377
2009 329.6 0.376
2010 328.7 0.374
2011 327.8 0.371
2012 326.8 0.367
2013 325.9 0.363
2014 324.9 0.358
2015 323.9 0.353
2016 322.8 0.346
2017 321.7 0.339
2018 320.6 0.332
2019 319.4 0.324
2020 318.1 0.315
2021 316.8 0.305
2022 315.3 0.295
2023 313.8 0.284
2024 312.1 0.273
2025 310.3 0.261
2026 308.3 0.248
2027 306.1 0.235
2028 303.6 0.221
2029 300.8 0.207
2030 297.6 0.193


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



 
 


wds01094-5636a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic