00447+4817 BU 231 AB (Omi Cas)
00h 44m 43.50s +48° 17' 03.8" P.A. 302.00 sep 34.4 mag 4.54,11.20 Sp B5IIIe dist. 215.52 pc (703.03 l.y.)
| Coord 2000 |
00447+4817 |
|
Discov num |
BU 231 |
|
Comp |
AB |
|
Coord arcsec 2000 |
00 44 43.50 +48 17 03.8 |
|
| Date first |
1876 |
|
Date last |
2011 |
|
Obs |
14 |
|
| Pa first |
304 |
|
Pa last |
301.6 |
|
P.A. Now (θ) |
301.6° |
|
| Sep first |
32.8 |
|
Sep last |
34.38 |
|
Sep. Now (ρ) |
34.38" |
|
| Mag pri |
4.54 |
|
Mag sec |
11.20 |
|
delta mag (ΔM) |
6.66 |
|
Spectral class |
B5IIIe (blue-white) |
|
| Pri motion ra |
+019 |
|
Sec motion ra |
+003 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
-006 |
|
| Notes |
N
(See Notes) |
|
rPM=0.792
Nature of this double is uncertain.
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
| Name |
Omi Cas |
|
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 |
|
