16542-4151 SNA 54 BC
16h 54m 13.20s -41° 50' 32.5" P.A. 142.00 sep 1.0 mag 7.40,12.23 Sp O9IV
Coord 2000 |
16542-4151 |
|
Discov num |
SNA 54 |
|
Comp |
BC |
|
Coord arcsec 2000 |
16 54 13.20 -41 50 32.5 |
|
Date first |
2012 |
|
Date last |
2012 |
|
Obs |
1 |
|
Pa first |
142 |
|
Pa last |
142 |
|
P.A. Now (θ) |
142° |
|
Sep first |
1.0 |
|
Sep last |
1.01 |
|
Sep. Now (ρ) |
1.01" |
|
Mag pri |
7.40 |
|
Mag sec |
12.23 |
|
delta mag (ΔM) |
4.83 |
|
Spectral class |
O9IV (blue) |
|
Pri motion ra |
-001 |
|
Sec motion ra |
|
|
Pri motion dec |
-002 |
|
Sec motion dec |
|
|
Notes |
N
V
K
(See Notes, Proper motion indicates physical, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
16542-4151 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
NSV8023 |
227383 |
16 54 12 -41 50 57 |
WFC 183 AB |
2022 |
10 |
35 |
31.0 |
6.39 |
7.74 |
1.35 |
|
|
Show |
|
|
16 54 13 -41 50 32 |
SNA 54 Ba,Bb |
2012 |
1 |
348 |
0.0 |
7.50 |
10.80 |
3.30 |
|
|
Show |
|
|
16 54 13 -41 50 32 |
SNA 54 BC |
2012 |
1 |
142 |
1.0 |
7.40 |
12.23 |
4.83 |
|
<=== |
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Scorpius |
|
Tycho2 |
7876-02816-1 |
|
Gaia DR2 |
5966509022176616448 |
|