17301-3343 HO 646 AC
17h 30m 05.64s -33° 42' 58.9" P.A. 314.00 sep 14.1 mag 6.74,11.30 Sp B0.5Ib dist. 12500 pc (40775 l.y.)
| Coord 2000 |
17301-3343 |
|
Discov num |
HO 646 |
|
Comp |
AC |
|
Coord arcsec 2000 |
17 30 05.64 -33 42 58.9 |
|
| Date first |
1893 |
|
Date last |
2016 |
|
Obs |
12 |
|
| Pa first |
315 |
|
Pa last |
313.9 |
|
P.A. Now (θ) |
313.9° |
|
| Sep first |
15.0 |
|
Sep last |
14.09 |
|
Sep. Now (ρ) |
14.09" |
|
| Mag pri |
6.74 |
|
Mag sec |
11.30 |
|
delta mag (ΔM) |
4.56 |
|
Spectral class |
B0.5Ib (blue-white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
-001 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-002 |
|
| Notes |
N
(See Notes) |
|
rPM=0.707
Nature of this double is uncertain.
17301-3343 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 158320 |
208881 |
17 30 06 -33 42 59 |
HWE 39 AB |
2016 |
18 |
322 |
4.3 |
6.74 |
9.53 |
2.79 |
|
|
| Show |
|
208881 |
17 30 06 -33 42 59 |
HO 646 AC |
2016 |
12 |
314 |
14.1 |
6.74 |
11.30 |
4.56 |
|
<=== |
| Show |
|
208881 |
17 30 06 -33 42 59 |
HO 646 AD |
2016 |
16 |
28 |
59.0 |
6.74 |
9.41 |
2.67 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Scorpius |
|
SAO |
208881 |
|
HIP |
85641 |
|
Tycho2 |
7379-00629-1 |
|
| Gaia DR2 |
4054440816690447872 |
|
HD |
158320 |
|
CD |
CD-3312117 |
|
Distance |
12500 |
|
| Distance ly |
40775 |
|
