00447+4817 NOI 3 Aa,Ab
00h 44m 43.50s +48° 17' 03.8" P.A. 267.00 sep 0.0 mag 4.60,7.50 Sp B5IIIe dist. 215.52 pc (703.03 l.y.)
| Coord 2000 |
00447+4817 |
|
Discov num |
NOI 3 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
00 44 43.50 +48 17 03.8 |
|
| Date first |
2005 |
|
Date last |
2018 |
|
Obs |
15 |
|
| Pa first |
134 |
|
Pa last |
267.3 |
|
P.A. Now (θ) |
267.3° |
|
| Sep first |
0.0 |
|
Sep last |
0.017 |
|
Sep. Now (ρ) |
0.017" |
|
| Mag pri |
4.60 |
|
Mag sec |
7.50 |
|
delta mag (ΔM) |
2.9 |
|
Spectral class |
B5IIIe (blue-white) |
|
| Pri motion ra |
+019 |
|
Sec motion ra |
|
|
| Pri motion dec |
-008 |
|
Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
00447+4817 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
36620 |
00 44 44 +48 17 04 |
NOI 3 Aa,Ab |
2018 |
15 |
267 |
0.0 |
4.60 |
7.50 |
2.90 |
Y |
<=== |
| Show |
Omi Cas |
36620 |
00 44 44 +48 17 04 |
BU 231 AB |
2011 |
14 |
302 |
34.4 |
4.54 |
11.20 |
6.66 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cassiopeia |
|
SAO |
36620 |
|
HIP |
3504 |
|
Tycho2 |
3253-01988-1 |
|
| Gaia DR2 |
390548351252549760 |
|
HD |
4180 |
|
HR |
193 |
|
GC |
882 |
|
| ADS |
622 |
|
BD |
BD+47 183 |
|
Bayer |
Omicron Cassiopeiae |
|
Bayer name |
Omi Cas |
|
| Flamsteed |
22 Cassiopeiae |
|
Flamsteed name |
22 Cas |
|
FK5 |
25 |
|
Distance |
215.52 |
|
| Distance ly |
703.03 |
|
Bayer greek |
ο Cas |
|
ORBITAL ELEMENTS
| Period (P) | 2.835y | ± 0.7 |
Periastron (T) | 2006.966y | ± 1.4 |
Semi-major axis (a) | 0.017a | |
| Eccentricity (e) | 0.019 | |
Inclination (i) | 113.4° | |
Longitude of periastron (ω) | 92.9° | |
| Node (Ω) | 88.6° | |
Notes | n | |
Reference | Doc2019b | |
| Equinox | 2000 | |
Last observation | 2007 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
139.7 |
0.008 |
| 2001 |
60.0 |
0.011 |
| 2002 |
266.8 |
0.017 |
| 2003 |
115.5 |
0.012 |
| 2004 |
31.4 |
0.008 |
| 2005 |
258.0 |
0.016 |
| 2006 |
102.3 |
0.015 |
| 2007 |
340.5 |
0.007 |
| 2008 |
246.4 |
0.013 |
| 2009 |
93.0 |
0.017 |
| 2010 |
304.1 |
0.010 |
| 2011 |
226.7 |
0.009 |
| 2012 |
84.6 |
0.017 |
| 2013 |
286.6 |
0.014 |
| 2014 |
187.7 |
0.007 |
| 2015 |
75.1 |
0.015 |
| 2016 |
275.9 |
0.016 |
| 2017 |
141.8 |
0.008 |
| 2018 |
61.1 |
0.011 |
| 2019 |
267.3 |
0.017 |
| 2020 |
116.6 |
0.012 |
| 2021 |
33.9 |
0.008 |
| 2022 |
258.6 |
0.016 |
| 2023 |
103.0 |
0.015 |
| 2024 |
343.6 |
0.007 |
| 2025 |
247.2 |
0.013 |
| 2026 |
93.5 |
0.017 |
| 2027 |
305.6 |
0.010 |
| 2028 |
228.3 |
0.010 |
| 2029 |
85.1 |
0.017 |
| 2030 |
287.4 |
0.013 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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