01061-4643 SLR   1AB (Bet Phe)

 
 
01H 06M 05.10S -46 43' 06.4" P.A. 82.5 SEP 0.6 MAG 4.10,4.19 SP G8IIIV DIST. 8333.33 PC (27183.32 L.Y.)
 
 
Coord 2000
01061-4643
Discov num
SLR   1
Comp
AB
Coord arcsec 2000
01 06 05.10 -46 43 06.4
Date first
1891
Date last
2016
Obs
84
Pa first
26
Pa last
84
P.A. Now (θ)
82.5°
Sep first
0.9
Sep last
0.7
Sep. Now (ρ)
0.6"
Mag pri
4.10
Mag sec
4.19
delta mag (ΔM)
0.09
Spectral class
G8IIIv (yellow)
Pri motion ra
-027
Sec motion ra
-027
Pri motion dec
+006
Sec motion dec
+006
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
01061-4643 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Bet Phe 215365 01061-4643 SLR 1 AB 1891 2016 84 82 0.6 4.10 4.19 0.09 Y <===
Show 215365 01061-4643 HJ 3417 AB,C 1834 2013 11 55 66.1 3.46 11.50 8.04
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Bet Phe
Constellation
Phoenix
SAO
215365
HIP
5165
Tycho2
8032-01228-1
HD
6595
HR
322
GC
1335
CD
CD-47 324
CP
CP-47 129
Bayer
Beta Phoenicis
Bayer name
Bet Phe
Distance
8333.33
Distance ly
27183.32
last precise pa
83.8
last precise sep
0.7
 
 
ORBITAL ELEMENTS
 
 
Period (P)170.7y± 5 Periastron (T)2003.41y± 0.1 Semi-major axis (a)0.946a± 0.016
Eccentricity (e)0.718± 0.016 Inclination (i)144°± 1.5 Longitude of periastron (ω)293.5°± 4.4
Node (Ω)126.4°± 3.5 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.281 253.5
2001 0.247 238.0
2002 0.225 218.6
2003 0.221 196.9
2004 0.235 176.2
2005 0.262 158.8
2006 0.294 145.0
2007 0.328 134.0
2008 0.362 125.1
2009 0.394 117.6
2010 0.424 111.2
2011 0.453 105.7
2012 0.480 100.8
2013 0.506 96.4
2014 0.531 92.5
2015 0.556 88.9
2016 0.579 85.6
2017 0.601 82.5
2018 0.623 79.7
2019 0.645 77.1
2020 0.665 74.6
2021 0.686 72.2
2022 0.705 70.0
2023 0.725 68.0
2024 0.743 66.0
2025 0.762 64.1
2026 0.780 62.3
2027 0.797 60.6
2028 0.815 59.0
2029 0.831 57.4
2030 0.848 55.9

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic