18187-1837 BU 300 CD
18h 18m 44.20s -18° 36' 59.9" P.A. 329.00 sep 6.3 mag 7.63,13.10 Sp B5
Coord 2000 |
18187-1837 |
|
Discov num |
BU 300 |
|
Comp |
CD |
|
Coord arcsec 2000 |
18 18 44.20 -18 36 59.9 |
|
Date first |
1874 |
|
Date last |
2015 |
|
Obs |
10 |
|
Pa first |
330 |
|
Pa last |
328.6 |
|
P.A. Now (θ) |
328.6° |
|
Sep first |
4.0 |
|
Sep last |
6.3 |
|
Sep. Now (ρ) |
6.3" |
|
Mag pri |
7.63 |
|
Mag sec |
13.10 |
|
delta mag (ΔM) |
5.47 |
|
Spectral class |
B5 (blue-white) |
|
Pri motion ra |
-001 |
|
Sec motion ra |
|
|
Pri motion dec |
+002 |
|
Sec motion dec |
|
|
Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
18187-1837 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
161304 |
18 18 43 -18 37 11 |
BU 639 AB |
2017 |
32 |
136 |
0.5 |
7.20 |
8.20 |
1.00 |
|
|
Show |
NSV10543 |
161304 |
18 18 43 -18 37 11 |
SHJ 264 AB,C |
2019 |
59 |
50 |
17.2 |
6.86 |
7.63 |
0.77 |
|
|
Show |
|
161304 |
18 18 43 -18 37 11 |
FOX 225 AB,E |
2000 |
7 |
328 |
145.6 |
6.86 |
10.78 |
3.92 |
|
|
Show |
|
|
18 18 44 -18 36 60 |
BU 300 CD |
2015 |
10 |
329 |
6.3 |
7.63 |
13.10 |
5.47 |
|
<=== |
Quintuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Sagittarius |
|
Tycho2 |
6269-04009-1 |
|
Gaia DR2 |
4096324307033587584 |
|