17590-2231 SNA 75 AD (HD 163800)
17h 58m 57.26s -22° 31' 03.2" P.A. 302.00 sep 6.9 mag 6.22,11.82 Sp O7.5III dist. 990.1 pc (3229.71 l.y.)
| Coord 2000 |
17590-2231 |
|
Discov num |
SNA 75 |
|
Comp |
AD |
|
Coord arcsec 2000 |
17 58 57.26 -22 31 03.2 |
|
| Date first |
2012 |
|
Date last |
2012 |
|
Obs |
1 |
|
| Pa first |
302 |
|
Pa last |
301.8 |
|
P.A. Now (θ) |
301.8° |
|
| Sep first |
6.9 |
|
Sep last |
6.88 |
|
Sep. Now (ρ) |
6.88" |
|
| Mag pri |
6.22 |
|
Mag sec |
11.82 |
|
delta mag (ΔM) |
5.6 |
|
Spectral class |
O7.5III (blue) |
|
| Pri motion ra |
-000 |
|
Sec motion ra |
|
|
| Pri motion dec |
-002 |
|
Sec motion dec |
|
|
| Notes |
K
(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
Nature of this double is uncertain.
17590-2231 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
186037 |
17 58 57 -22 31 03 |
SNA 75 AB |
2012 |
1 |
221 |
3.9 |
6.22 |
13.66 |
7.44 |
|
|
| Show |
|
186037 |
17 58 57 -22 31 03 |
SNA 75 AC |
2012 |
1 |
46 |
6.2 |
6.22 |
12.74 |
6.52 |
|
|
| Show |
HD 163800 |
186037 |
17 58 57 -22 31 03 |
SNA 75 AD |
2012 |
1 |
302 |
6.9 |
6.22 |
11.82 |
5.60 |
|
<=== |
| Show |
|
186037 |
17 58 57 -22 31 03 |
SNA 75 AE |
2012 |
1 |
349 |
7.9 |
6.22 |
12.34 |
6.12 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 163800 |
|
Constellation |
Sagittarius |
|
SAO |
186037 |
|
HIP |
88040 |
|
| Tycho2 |
6841-01252-1 |
|
Gaia DR2 |
4069523951550440832 |
|
HD |
163800 |
|
BD |
BD-22 4474 |
|
| CD |
CD-2212386 |
|
Distance |
990.1 |
|
Distance ly |
3229.71 |
|
