23590+5545 STF 3049 AB (Sig Cas)
23h 59m 00.53s +55° 45' 17.8" P.A. 326.00 sep 3.1 mag 4.99,7.24 Sp B1V dist. 1388.89 pc (4530.56 l.y.)
| Coord 2000 |
23590+5545 |
|
Discov num |
STF3049 |
|
Comp |
AB |
|
Coord arcsec 2000 |
23 59 00.53 +55 45 17.8 |
|
| Date first |
1823 |
|
Date last |
2017 |
|
Obs |
121 |
|
| Pa first |
328 |
|
Pa last |
326.3 |
|
P.A. Now (θ) |
326.3° |
|
| Sep first |
2.9 |
|
Sep last |
3.11 |
|
Sep. Now (ρ) |
3.11" |
|
| Mag pri |
4.99 |
|
Mag sec |
7.24 |
|
delta mag (ΔM) |
2.25 |
|
Spectral class |
B1V (blue-white) |
|
| Pri motion ra |
+009 |
|
Sec motion ra |
+009 |
|
| Pri motion dec |
-005 |
|
Sec motion dec |
-005 |
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
23590+5545 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Sig Cas |
35947 |
23 59 01 +55 45 18 |
STF 3049 AB |
2017 |
121 |
326 |
3.1 |
4.99 |
7.24 |
2.25 |
|
<=== |
| Show |
|
35947 |
23 59 01 +55 45 18 |
STF 3049 AC |
2014 |
9 |
66 |
106.0 |
4.99 |
10.37 |
5.38 |
|
|
| Show |
|
|
23 59 00 +55 45 20 |
STF 3049 BC |
2003 |
4 |
66 |
106.5 |
7.24 |
10.37 |
3.13 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
Sig Cas |
|
Constellation |
Cassiopeia |
|
SAO |
35947 |
|
HIP |
118243 |
|
| Tycho2 |
4005-02471-1 |
|
Gaia DR2 |
1993966437220412288 |
|
HD |
224572 |
|
HR |
9071 |
|
| GC |
33257 |
|
ADS |
17140 |
|
BD |
BD+54 3082 |
|
Bayer |
Sigma Cassiopeiae |
|
| Bayer name |
Sig Cas |
|
Flamsteed |
8 Cassiopeiae |
|
Flamsteed name |
8 Cas |
|
Distance |
1388.89 |
|
| Distance ly |
4530.56 |
|
Bayer greek |
σ Cas |
|
