18170-1858 SNA 85 Aa,Ab
18h 16m 58.56s -18° 58' 05.1" P.A. 265.00 sep 0.0 mag 6.80,9.30 Sp O7II-III
Coord 2000 |
18170-1858 |
|
Discov num |
SNA 85 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
18 16 58.56 -18 58 05.1 |
|
Date first |
2012 |
|
Date last |
2012 |
|
Obs |
2 |
|
Pa first |
266 |
|
Pa last |
265.2 |
|
P.A. Now (θ) |
265.2° |
|
Sep first |
0.1 |
|
Sep last |
0.047 |
|
Sep. Now (ρ) |
0.047" |
|
Mag pri |
6.80 |
|
Mag sec |
9.30 |
|
delta mag (ΔM) |
2.5 |
|
Spectral class |
O7II-III (blue) |
|
Pri motion ra |
+000 |
|
Sec motion ra |
|
|
Pri motion dec |
-002 |
|
Sec motion dec |
|
|
Notes |
N
V
K
(See Notes, Proper motion indicates physical, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
18170-1858 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
161255 |
18 16 59 -18 58 05 |
SNA 85 Aa,Ab |
2012 |
2 |
265 |
0.0 |
6.80 |
9.30 |
2.50 |
|
<=== |
Show |
|
161255 |
18 16 59 -18 58 05 |
MZA 23 AB |
2009 |
4 |
227 |
17.5 |
7.40 |
13.50 |
6.10 |
|
|
Show |
|
161255 |
18 16 59 -18 58 05 |
SNA 85 AC |
2012 |
1 |
88 |
5.1 |
6.67 |
12.57 |
5.90 |
|
|
Show |
|
161255 |
18 16 59 -18 58 05 |
SNA 85 AD |
2012 |
1 |
247 |
5.8 |
6.67 |
13.63 |
6.96 |
|
|
Show |
|
161255 |
18 16 59 -18 58 05 |
SNA 85 AE |
2012 |
1 |
58 |
7.3 |
6.67 |
14.01 |
7.34 |
|
|
Sextuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Sagittarius |
|
SAO |
161255 |
|
Tycho2 |
6273-00422-1 |
|
Gaia DR2 |
4094790350826867584 |
|
HD |
167659 |
|