18187-1837 SHJ 264 AB,C (NSV10543)
18h 18m 43.26s -18° 37' 10.8" P.A. 50.00 sep 17.2 mag 6.86,7.63 Sp B0Ib
| Coord 2000 |
18187-1837 |
|
Discov num |
SHJ 264 |
|
Comp |
AB,C |
|
Coord arcsec 2000 |
18 18 43.26 -18 37 10.8 |
|
| Date first |
1823 |
|
Date last |
2019 |
|
Obs |
59 |
|
| Pa first |
53 |
|
Pa last |
50.1 |
|
P.A. Now (θ) |
50.1° |
|
| Sep first |
16.4 |
|
Sep last |
17.222 |
|
Sep. Now (ρ) |
17.222" |
|
| Mag pri |
6.86 |
|
Mag sec |
7.63 |
|
delta mag (ΔM) |
0.77 |
|
Spectral class |
B0Ib (blue-white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
-004 |
|
Sec motion dec |
-001 |
|
| Notes |
N
(See Notes) |
|
rPM=0.767
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
| Var name |
NSV10543 |
|
Constellation |
Sagittarius |
|
SAO |
161304 |
|
Tycho2 |
6269-04010-1 |
|
| Gaia DR2 |
4096324302654797952 |
|
HD |
168021 |
|
HR |
6848 |
|
ADS |
11240 |
|
| DM |
BD-18 4896 |
|
