18242-1935 BU 49 AC
18h 24m 09.30s -19° 34' 37.4" P.A. 304.00 sep 22.4 mag 7.97,12.50 Sp B8III
| Coord 2000 |
18242-1935 |
|
Discov num |
BU 49 |
|
Comp |
AC |
|
Coord arcsec 2000 |
18 24 09.30 -19 34 37.4 |
|
| Date first |
1898 |
|
Date last |
2015 |
|
Obs |
6 |
|
| Pa first |
301 |
|
Pa last |
303.9 |
|
P.A. Now (θ) |
303.9° |
|
| Sep first |
21.7 |
|
Sep last |
22.434 |
|
Sep. Now (ρ) |
22.434" |
|
| Mag pri |
7.97 |
|
Mag sec |
12.50 |
|
delta mag (ΔM) |
4.53 |
|
Spectral class |
B8III (blue-white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
|
|
| Pri motion dec |
-011 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
18242-1935 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 169174 |
161426 |
18 24 09 -19 34 37 |
BU 49 AB |
2015 |
19 |
45 |
8.2 |
7.97 |
11.30 |
3.33 |
|
|
| Show |
|
161426 |
18 24 09 -19 34 37 |
BU 49 AC |
2015 |
6 |
304 |
22.4 |
7.97 |
12.50 |
4.53 |
|
<=== |
| Show |
|
161426 |
18 24 09 -19 34 37 |
BU 49 AD |
2015 |
7 |
149 |
23.4 |
7.97 |
11.70 |
3.73 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagittarius |
|
SAO |
161426 |
|
Tycho2 |
6274-00524-1 |
|
Gaia DR2 |
4093002235739062784 |
|
| HD |
169174 |
|
