01250-3251 HDS 184

 
 
01h 25m 01.81s -32 51' 04.0" P.A. 84.20 sep 0.1 mag 10.54,10.68 dist. 25.14 pc (82.01 l.y.)
 
 
Coord 2000
01250-3251
Discov num
HDS 184
Comp
Coord arcsec 2000
01 25 01.81 -32 51 04.0
Date first
1991
Date last
2019
Obs
9
Pa first
287
Pa last
60
P.A. Now (θ)
84.2°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
10.54
Mag sec
10.68
delta mag (ΔM)
0.14
Spectral class
Pri motion ra
+233
Sec motion ra
Pri motion dec
+148
Sec motion dec
Notes
O (Orbital solution)
Visually invisible, K-band or other infrared star This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
59.8
Precise sep
0.052
Constellation
Sculptor
SAO
193103
HIP
6626
Tycho2
7002-01728-1
Gaia DR2
46204345216
GL
GJ 1038
CD
CD-33 514
CP
CP-33 143
Distance
25.14
Distance ly
82.01
last precise pa
59.8
last precise sep
0.052
 
 
ORBITAL ELEMENTS
 
 
Period (P)6.313y± 0.065 Periastron (T)2018.549y± 0.021 Semi-major axis (a)0.1445a± 0.001
Eccentricity (e)0.515± 0.007 Inclination (i)73.9°± 0.8 Longitude of periastron (ω)165.8°± 2.1
Node (Ω)107.4°± 0.5 Note Grade2(1=Definitive, 9=Indet.)
Equinox Last observation2018
label rho theta
2000 0.056 308.3
2001 0.094 82.3
2002 0.182 97.9
2003 0.215 104.8
2004 0.188 111.4
2005 0.087 127.0
2006 0.071 287.9
2007 0.058 66.2
2008 0.160 94.9
2009 0.211 102.9
2010 0.204 109.1
2011 0.128 119.2
2012 0.044 262.0
2013 0.034 15.7
2014 0.133 90.8
2015 0.201 100.8
2016 0.213 107.1
2017 0.160 114.9
2018 0.033 164.3
2019 0.050 314.4
2020 0.101 84.2
2021 0.186 98.4
2022 0.216 105.2
2023 0.185 111.9
2024 0.079 129.5
2025 0.071 291.3
2026 0.065 70.7
2027 0.165 95.6
2028 0.212 103.3
2029 0.202 109.6
2030 0.121 120.3

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






wds01250-3251a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
01250-3251 HDS 184 1991 1 287 0.2 10.54 10.68 012501.65-325105.3
01250-3251 HDS 184 2014 3 280 0.2 10.54 10.68 012501.65-325105.3
01250-3251 HDS 184 2015 4 106 0.2 10.54 10.68 012501.65-325105.3
01250-3251 HDS 184 2016 5 115 0.2 10.54 10.68 012501.81-325104.0
01250-3251 HDS 184 2018 8 314 0.1 10.54 10.68 012501.81-325104.0
01250-3251 HDS 184 2019 9 60 0.1 10.54 10.68 O 012501.81-325104.0

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