18152-2023 BU 286 AB
18h 15m 12.97s -20° 23' 16.7" P.A. 216.00 sep 6.1 mag 5.95,13.00 Sp O9IV dist. 2325.58 pc (7586.04 l.y.)
Coord 2000 |
18152-2023 |
|
Discov num |
BU 286 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 15 12.97 -20 23 16.7 |
|
Date first |
1874 |
|
Date last |
2015 |
|
Obs |
12 |
|
Pa first |
220 |
|
Pa last |
216.3 |
|
P.A. Now (θ) |
216.3° |
|
Sep first |
6.0 |
|
Sep last |
6.08 |
|
Sep. Now (ρ) |
6.08" |
|
Mag pri |
5.95 |
|
Mag sec |
13.00 |
|
delta mag (ΔM) |
7.05 |
|
Spectral class |
O9IV (blue) |
|
Pri motion ra |
+005 |
|
Sec motion ra |
|
|
Pri motion dec |
-003 |
|
Sec motion dec |
|
|
Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
18152-2023 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
186544 |
18 15 13 -20 23 17 |
CHR 255 Aa,Ab |
2019 |
9 |
156 |
0.1 |
6.50 |
6.90 |
0.40 |
|
|
Show |
|
186544 |
18 15 13 -20 23 17 |
BU 286 AB |
2015 |
12 |
216 |
6.1 |
5.95 |
13.00 |
7.05 |
|
<=== |
Show |
16 Sgr |
186544 |
18 15 13 -20 23 17 |
SNA 83 AC |
2012 |
1 |
27 |
5.9 |
5.88 |
13.43 |
7.55 |
|
|
Show |
|
186544 |
18 15 13 -20 23 17 |
SNA 83 AD |
2012 |
1 |
281 |
6.5 |
5.88 |
13.04 |
7.16 |
|
|
Show |
|
186544 |
18 15 13 -20 23 17 |
SNA 83 AE |
2012 |
1 |
242 |
7.3 |
5.88 |
13.20 |
7.32 |
|
|
Sextuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Sagittarius |
|
SAO |
186544 |
|
HIP |
89440 |
|
Tycho2 |
6272-00089-1 |
|
Gaia DR2 |
4094031138050641408 |
|
HD |
167263 |
|
HR |
6823 |
|
GC |
24895 |
|
ADS |
11191 |
|
BD |
BD-20 5055 |
|
Flamsteed |
16 Sagittarii |
|
Flamsteed name |
16 Sgr |
|
Distance |
2325.58 |
|
Distance ly |
7586.04 |
|