01071-0036 HDS 144AB

 
 
01h 07m 04.52s -00 35' 31.3" P.A. 130.9 sep 0.35 mag 9.21,11.76 Sp K0 dist. 52.44 pc (171.06 l.y.)
 
 
Coord 2000
01071-0036
Discov num
HDS 144
Comp
AB
Coord arcsec 2000
01 07 04.52 -00 35 31.3
Date first
1991
Date last
2017
Obs
15
Pa first
308
Pa last
129
P.A. Now (θ)
130.9°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.35"
Mag pri
9.21
Mag sec
11.76
delta mag (ΔM)
2.55
Spectral class
K0 (yellow-orange)
Pri motion ra
-034
Sec motion ra
Pri motion dec
-029
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
01071-0036 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 129127 01071-0036 HDS 144 AB 1991 2017 15 131 0.4 9.21 11.76 2.55 Y <===
Show 129127 01071-0036 BAG 12 AC 1999 2017 10 149 1.4 9.21 12.18 2.97
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
129.1
Precise sep
0.345
Constellation
Cetus
SAO
129127
HIP
5245
HD
6639
Distance
52.44
Distance ly
171.06
last precise pa
129.1
last precise sep
0.345
 
 
ORBITAL ELEMENTS
 
 
Period (P)72.6y Periastron (T)2073.1y Semi-major axis (a)0.365a
Eccentricity (e)0.237 Inclination (i)138.2° Longitude of periastron (ω)30°
Node (Ω)281.9° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.267 262.0
2001 0.258 255.1
2002 0.250 247.7
2003 0.242 239.8
2004 0.235 231.3
2005 0.229 222.4
2006 0.226 213.1
2007 0.226 203.7
2008 0.228 194.4
2009 0.234 185.5
2010 0.242 177.0
2011 0.253 169.2
2012 0.265 162.0
2013 0.278 155.5
2014 0.292 149.6
2015 0.307 144.3
2016 0.321 139.4
2017 0.335 135.0
2018 0.349 130.9
2019 0.362 127.1
2020 0.374 123.6
2021 0.385 120.3
2022 0.396 117.1
2023 0.405 114.1
2024 0.413 111.3
2025 0.420 108.5
2026 0.426 105.9
2027 0.431 103.3
2028 0.435 100.7
2029 0.438 98.2
2030 0.440 95.7

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

grafico orbita





wds01071-0036c.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
01071-0036 HDS 144 AB 1999 3 263 0.3 9.21 11.76 K0 010704.52-003531.3
01071-0036 HDS 144 AB 2008 6 5 0.2 9.21 11.76 K0 010704.52-003531.3
01071-0036 HDS 144 AB 2011 10 169 0.3 9.21 11.76 K0 OD 010704.52-003531.3
01071-0036 HDS 144 AB 2013 11 151 0.3 9.21 11.76 K0 O 010704.52-003531.3
01071-0036 HDS 144 AB 2015 12 137 0.3 9.21 11.76 K0 O 010704.52-003531.3
01071-0036 HDS 144 AB 2017 15 129 0.3 9.21 11.76 K0 O 010704.52-003531.3

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