18175-1828 RST 3170 AB
18h 17m 28.56s -18° 27' 48.4" P.A. 169.00 sep 8.6 mag 6.54,13.00 Sp O7III+O8 dist. 628.93 pc (2051.57 l.y.)
Coord 2000 |
18175-1828 |
|
Discov num |
RST3170 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 17 28.56 -18 27 48.4 |
|
Date first |
1933 |
|
Date last |
2015 |
|
Obs |
5 |
|
Pa first |
170 |
|
Pa last |
168.7 |
|
P.A. Now (θ) |
168.7° |
|
Sep first |
8.4 |
|
Sep last |
8.561 |
|
Sep. Now (ρ) |
8.561" |
|
Mag pri |
6.54 |
|
Mag sec |
13.00 |
|
delta mag (ΔM) |
6.46 |
|
Spectral class |
O7III+O8 (blue/blue) |
|
Pri motion ra |
+003 |
|
Sec motion ra |
|
|
Pri motion dec |
-007 |
|
Sec motion dec |
|
|
Notes |
N
U
(See Notes, Proper motion indicates non-physical) |
|
This double is not physical.
18175-1828 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
161267 |
18 17 29 -18 27 48 |
OCC 12 Aa,Ab |
1923 |
0 |
-1 |
0.1 |
7.20 |
7.20 |
0.00 |
|
|
Show |
|
161267 |
18 17 29 -18 27 48 |
RST 3170 AB |
2015 |
5 |
169 |
8.6 |
6.54 |
13.00 |
6.46 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Sagittarius |
|
SAO |
161267 |
|
HIP |
89630 |
|
Tycho2 |
6269-02759-1 |
|
Gaia DR2 |
4094879303848709376 |
|
HD |
167771 |
|
HR |
6841 |
|
GC |
24950 |
|
BD |
BD-18 4886 |
|
Distance |
628.93 |
|
Distance ly |
2051.57 |
|