18315-2138 ARA 1540
18h 31m 29.97s -21° 37' 37.8" P.A. 10.00 sep 14.8 mag 13.60,13.90
| Coord 2000 |
18315-2138 |
|
Discov num |
ARA1540 |
|
Comp |
|
|
Coord arcsec 2000 |
18 31 29.97 -21 37 37.8 |
|
| Date first |
1922 |
|
Date last |
2015 |
|
Obs |
6 |
|
| Pa first |
350 |
|
Pa last |
9.8 |
|
P.A. Now (θ) |
9.8° |
|
| Sep first |
13.4 |
|
Sep last |
14.766 |
|
Sep. Now (ρ) |
14.766" |
|
| Mag pri |
13.60 |
|
Mag sec |
13.90 |
|
delta mag (ΔM) |
0.3 |
|
Spectral class |
|
|
| Pri motion ra |
|
|
Sec motion ra |
-016 |
|
| Pri motion dec |
|
|
Sec motion dec |
+001 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagittarius |
|
Gaia DR2 |
4090094401053363072 |
|
