18510-2018 PLT 3 AB (BB Sgr)
18h 50m 59.87s -20° 17' 42.3" P.A. 101.00 sep 93.6 mag 6.70,7.50 Sp G0Ib+B8II dist. 4761.9 pc (15533.32 l.y.)
Coord 2000 |
18510-2018 |
|
Discov num |
PLT 3 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 50 59.87 -20 17 42.3 |
|
Date first |
1894 |
|
Date last |
2018 |
|
Obs |
14 |
|
Pa first |
102 |
|
Pa last |
101 |
|
P.A. Now (θ) |
101° |
|
Sep first |
93.7 |
|
Sep last |
93.6 |
|
Sep. Now (ρ) |
93.6" |
|
Mag pri |
6.70 |
|
Mag sec |
7.50 |
|
delta mag (ΔM) |
0.8 |
|
Spectral class |
G0Ib+B8II (yellow/blue-white) |
|
Pri motion ra |
+001 |
|
Sec motion ra |
-002 |
|
Pri motion dec |
-005 |
|
Sec motion dec |
-006 |
|
Notes |
N
(See Notes) |
|
rPM=0.5
Nature of this double is uncertain.
18510-2018 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
BB Sgr |
187349 |
18 50 60 -20 17 42 |
PLT 3 AB |
2018 |
14 |
101 |
93.6 |
6.70 |
7.50 |
0.80 |
|
<=== |
Show |
|
187349 |
18 50 60 -20 17 42 |
EVS 38 AC |
2011 |
1 |
158 |
3.3 |
6.70 |
18.10 |
11.40 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
BB Sgr |
|
Constellation |
Sagittarius |
|
SAO |
187349 |
|
HIP |
92491 |
|
Tycho2 |
6289-03062-1 |
|
Gaia DR2 |
4085919765884068736 |
|
HD |
174383 |
|
GC |
25842 |
|
BD |
BD-20 5286 |
|
Distance |
4761.9 |
|
Distance ly |
15533.32 |
|