18210-1939 BU 48 CD
18h 20m 56.10s -19° 39' 10.3" P.A. 57.00 sep 16.4 mag 11.27,11.26
| Coord 2000 |
18210-1939 |
|
Discov num |
BU 48 |
|
Comp |
CD |
|
Coord arcsec 2000 |
18 20 56.10 -19 39 10.3 |
|
| Date first |
1991 |
|
Date last |
2016 |
|
Obs |
7 |
|
| Pa first |
53 |
|
Pa last |
57.3 |
|
P.A. Now (θ) |
57.3° |
|
| Sep first |
17.5 |
|
Sep last |
16.375 |
|
Sep. Now (ρ) |
16.375" |
|
| Mag pri |
11.27 |
|
Mag sec |
11.26 |
|
delta mag (ΔM) |
0.01 |
|
Spectral class |
|
|
| Pri motion ra |
+004 |
|
Sec motion ra |
-002 |
|
| Pri motion dec |
-017 |
|
Sec motion dec |
+003 |
|
| Notes |
|
|
rPM=1.196
This double is not physical.
18210-1939 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 168539 |
|
18 21 02 -19 39 28 |
BU 48 AB |
2016 |
26 |
349 |
2.6 |
8.05 |
9.58 |
1.53 |
|
|
| Show |
|
|
18 21 02 -19 39 28 |
BU 48 AC |
2015 |
4 |
283 |
78.6 |
8.05 |
11.27 |
3.22 |
|
|
| Show |
|
|
18 20 56 -19 39 10 |
BU 48 CD |
2016 |
7 |
57 |
16.4 |
11.27 |
11.26 |
0.01 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagittarius |
|
Tycho2 |
6273-00507-1 |
|
Gaia DR2 |
4094515919601593472 |
|
