02128-0224 TOK 39 Aa,Ab
02h 12m 47.54s -02° 23' 37.1" P.A. 187.00 sep 0.0 mag 6.18,6.69 Sp F8V dist. 39.7 pc (129.5 l.y.)
Coord 2000 |
02128-0224 |
|
Discov num |
TOK 39 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
02 12 47.54 -02 23 37.1 |
|
Date first |
2007 |
|
Date last |
2020 |
|
Obs |
22 |
|
Pa first |
115 |
|
Pa last |
187 |
|
P.A. Now (θ) |
187° |
|
Sep first |
0.0 |
|
Sep last |
0.012 |
|
Sep. Now (ρ) |
0.012" |
|
Mag pri |
6.18 |
|
Mag sec |
6.69 |
|
delta mag (ΔM) |
0.51 |
|
Spectral class |
F8V (yellow-white) |
|
Pri motion ra |
+374 |
|
Sec motion ra |
|
|
Pri motion dec |
-069 |
|
Sec motion dec |
|
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
02128-0224 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
129752 |
02 12 48 -02 23 37 |
TOK 39 Aa,Ab |
2020 |
22 |
187 |
0.0 |
6.18 |
6.69 |
0.51 |
Y |
<=== |
Show |
66 Cet |
129752 |
02 12 48 -02 23 37 |
STF 231 AB |
2019 |
171 |
235 |
16.8 |
5.72 |
7.71 |
1.99 |
|
|
Show |
|
129752 |
02 12 48 -02 23 37 |
STF 231 AC |
1998 |
4 |
53 |
147.0 |
5.65 |
11.50 |
5.85 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cetus |
|
SAO |
129752 |
|
HIP |
10305 |
|
Tycho2 |
4690-01110-1 |
|
HD |
13612 |
|
HR |
650 |
|
GC |
2652 |
|
ADS |
1703 |
|
GL |
Gl 87.1A |
|
BD |
BD-03 336 |
|
Flamsteed |
66 Ceti |
|
Flamsteed name |
66 Cet |
|
Distance |
39.7 |
|
Distance ly |
129.5 |
|
ORBITAL ELEMENTS
Period (P) | 0.2595y | |
Periastron (T) | 1989.5599y | |
Semi-major axis (a) | 0.0144a | |
Eccentricity (e) | 0.689 | |
Inclination (i) | 30° | |
Longitude of periastron (ω) | 74.3° | |
Node (Ω) | 241° | |
Notes | n | |
Reference | Tok2020e | |
Equinox | | |
Last observation | 2019 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
102.4 |
0.018 |
2001 |
68.3 |
0.010 |
2002 |
218.6 |
0.008 |
2003 |
170.3 |
0.016 |
2004 |
148.9 |
0.020 |
2005 |
133.0 |
0.021 |
2006 |
117.6 |
0.021 |
2007 |
98.5 |
0.017 |
2008 |
55.1 |
0.008 |
2009 |
204.7 |
0.010 |
2010 |
165.9 |
0.017 |
2011 |
146.0 |
0.020 |
2012 |
130.4 |
0.021 |
2013 |
114.8 |
0.020 |
2014 |
94.2 |
0.016 |
2015 |
32.5 |
0.006 |
2016 |
194.5 |
0.012 |
2017 |
161.9 |
0.017 |
2018 |
143.2 |
0.021 |
2019 |
127.8 |
0.021 |
2020 |
111.8 |
0.020 |
2021 |
89.2 |
0.015 |
2022 |
343.1 |
0.004 |
2023 |
186.6 |
0.013 |
2024 |
158.2 |
0.018 |
2025 |
140.4 |
0.021 |
2026 |
125.2 |
0.021 |
2027 |
108.7 |
0.019 |
2028 |
83.4 |
0.014 |
2029 |
273.4 |
0.005 |
2030 |
180.0 |
0.014 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|