02193-0259 JOY 1 Aa,Ab
02h 19m 20.78s -02° 58' 39.5" P.A. 98.00 sep 0.5 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 |
2014 |
|
Obs |
82 |
|
Pa first |
130 |
|
Pa last |
98.1 |
|
P.A. Now (θ) |
98.1° |
|
Sep first |
0.9 |
|
Sep last |
0.487 |
|
Sep. Now (ρ) |
0.487" |
|
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 |
2014 |
82 |
98 |
0.5 |
6.80 |
10.40 |
3.60 |
Y |
<=== |
Show |
|
129825 |
02 19 21 -02 58 40 |
BU 1371 AB |
2017 |
10 |
68 |
71.5 |
6.64 |
14.07 |
7.43 |
|
|
Show |
Mira |
129825 |
02 19 21 -02 58 40 |
H 6 1 AC |
2017 |
43 |
68 |
121.8 |
6.64 |
9.65 |
3.01 |
|
|
Show |
|
129825 |
02 19 21 -02 58 40 |
STG 1 AD |
2019 |
8 |
324 |
166.9 |
6.64 |
13.66 |
7.02 |
|
|
Show |
|
129828 |
02 19 25 -02 58 16 |
H 6 1 BC |
2019 |
8 |
68 |
50.3 |
14.07 |
9.65 |
4.42 |
|
|
Quintuple system
4 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 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|