02193-0259 JOY 1 Aa,Ab
02h 19m 20.78s -02° 58' 39.5" P.A. 91.00 sep 0.4 mag 6.80,10.40 Sp M7IIIe dist. 91.66 pc (298.99 l.y.)
| Coord 2000 |
02193-0259 |
|
Discov num |
JOY 1 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
02 19 20.78 -02 58 39.5 |
|
| Date first |
1923 |
|
Date last |
2023 |
|
Obs |
90 |
|
| Pa first |
130 |
|
Pa last |
91.1 |
|
P.A. Now (θ) |
91.1° |
|
| Sep first |
0.9 |
|
Sep last |
0.402 |
|
Sep. Now (ρ) |
0.402" |
|
| Mag pri |
6.80 |
|
Mag sec |
10.40 |
|
delta mag (ΔM) |
3.6 |
|
Spectral class |
M7IIIe (red) |
|
| Pri motion ra |
+007 |
|
Sec motion ra |
|
|
| Pri motion dec |
-239 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
02193-0259 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
129825 |
02 19 21 -02 58 40 |
JOY 1 Aa,Ab |
2023 |
90 |
91 |
0.4 |
6.80 |
10.40 |
3.60 |
Y |
<=== |
| Show |
|
129825 |
02 19 21 -02 58 40 |
BU 1371 AB |
2017 |
11 |
68 |
71.5 |
6.64 |
14.07 |
7.43 |
|
|
| Show |
Mira |
129825 |
02 19 21 -02 58 40 |
H 6 1 AC |
2017 |
44 |
68 |
121.8 |
6.64 |
9.65 |
3.01 |
|
|
| Show |
|
129825 |
02 19 21 -02 58 40 |
STG 1 AD |
2019 |
9 |
324 |
166.9 |
6.64 |
13.66 |
7.02 |
|
|
| Show |
|
129828 |
02 19 25 -02 58 16 |
H 6 1 BC |
2019 |
9 |
68 |
50.3 |
14.07 |
9.65 |
4.42 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Common name |
Mira |
|
Var name |
VZ Cet |
|
Constellation |
Cetus |
|
SAO |
129825 |
|
| HIP |
10826 |
|
Tycho2 |
4693-01144-1 |
|
Gaia DR2 |
2493390319631662720 |
|
HD |
14386 |
|
| HR |
681 |
|
GC |
2796 |
|
ADS |
1778 |
|
BD |
BD-03 353 |
|
| Bayer |
Omicron Ceti |
|
Bayer name |
Omi Cet |
|
Flamsteed |
68 Ceti |
|
Flamsteed name |
68 Cet |
|
| Distance |
91.66 |
|
Distance ly |
298.99 |
|
Bayer greek |
ο Cet |
|
ORBITAL ELEMENTS
| Period (P) | 497.88y | |
Periastron (T) | 2285.75y | |
Semi-major axis (a) | 0.8a | |
| Eccentricity (e) | 0.16 | |
Inclination (i) | 112° | |
Longitude of periastron (ω) | 258.3° | |
| Node (Ω) | 138.8° | |
Notes | n | |
Reference | Sca2001f | |
| Equinox | 2000 | |
Last observation | 1998 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
107.2 |
0.561 |
| 2001 |
106.7 |
0.556 |
| 2002 |
106.1 |
0.551 |
| 2003 |
105.6 |
0.545 |
| 2004 |
105.0 |
0.540 |
| 2005 |
104.4 |
0.535 |
| 2006 |
103.8 |
0.530 |
| 2007 |
103.2 |
0.525 |
| 2008 |
102.5 |
0.520 |
| 2009 |
101.9 |
0.515 |
| 2010 |
101.2 |
0.510 |
| 2011 |
100.6 |
0.505 |
| 2012 |
99.9 |
0.500 |
| 2013 |
99.2 |
0.495 |
| 2014 |
98.5 |
0.490 |
| 2015 |
97.8 |
0.485 |
| 2016 |
97.0 |
0.480 |
| 2017 |
96.3 |
0.475 |
| 2018 |
95.5 |
0.470 |
| 2019 |
94.7 |
0.465 |
| 2020 |
93.9 |
0.460 |
| 2021 |
93.1 |
0.455 |
| 2022 |
92.3 |
0.451 |
| 2023 |
91.4 |
0.446 |
| 2024 |
90.6 |
0.441 |
| 2025 |
89.7 |
0.437 |
| 2026 |
88.8 |
0.432 |
| 2027 |
87.9 |
0.428 |
| 2028 |
86.9 |
0.424 |
| 2029 |
85.9 |
0.419 |
| 2030 |
85.0 |
0.415 |
| 2031 |
84.0 |
0.411 |
| 2032 |
82.9 |
0.407 |
| 2033 |
81.9 |
0.403 |
| 2034 |
80.8 |
0.399 |
| 2035 |
79.7 |
0.395 |
| 2036 |
78.6 |
0.392 |
| 2037 |
77.5 |
0.388 |
| 2038 |
76.4 |
0.385 |
| 2039 |
75.2 |
0.382 |
| 2040 |
74.0 |
0.378 |
| 2041 |
72.8 |
0.375 |
| 2042 |
71.6 |
0.372 |
| 2043 |
70.4 |
0.370 |
| 2044 |
69.1 |
0.367 |
| 2045 |
67.8 |
0.364 |
| 2046 |
66.5 |
0.362 |
| 2047 |
65.2 |
0.360 |
| 2048 |
63.9 |
0.358 |
| 2049 |
62.5 |
0.356 |
| 2050 |
61.2 |
0.354 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
