18362-1950 ARA 756 (HD 171557)
18h 36m 14.18s -19° 50' 24.3" P.A. 325.00 sep 9.5 mag 8.89,11.80 Sp B6III
| Coord 2000 |
18362-1950 |
|
Discov num |
ARA 756 |
|
Comp |
|
|
Coord arcsec 2000 |
18 36 14.18 -19 50 24.3 |
|
| Date first |
1919 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
322 |
|
Pa last |
325.4 |
|
P.A. Now (θ) |
325.4° |
|
| Sep first |
9.1 |
|
Sep last |
9.507 |
|
Sep. Now (ρ) |
9.507" |
|
| Mag pri |
8.89 |
|
Mag sec |
11.80 |
|
delta mag (ΔM) |
2.91 |
|
Spectral class |
B6III (blue-white) |
|
| Pri motion ra |
-001 |
|
Sec motion ra |
-007 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
-004 |
|
| Notes |
|
|
rPM=0.832
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 171557 |
|
Constellation |
Sagittarius |
|
SAO |
161648 |
|
Tycho2 |
6275-00618-1 |
|
| Gaia DR2 |
4092384580685830144 |
|
HD |
171557 |
|
