18503-2100 ARA 1554
18h 50m 17.87s -20° 59' 44.8" P.A. 188.00 sep 9.7 mag 10.73,12.80
| Coord 2000 |
18503-2100 |
|
Discov num |
ARA1554 |
|
Comp |
|
|
Coord arcsec 2000 |
18 50 17.87 -20 59 44.8 |
|
| Date first |
1921 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
184 |
|
Pa last |
187.8 |
|
P.A. Now (θ) |
187.8° |
|
| Sep first |
10.4 |
|
Sep last |
9.711 |
|
Sep. Now (ρ) |
9.711" |
|
| Mag pri |
10.73 |
|
Mag sec |
12.80 |
|
delta mag (ΔM) |
2.07 |
|
Spectral class |
|
|
| Pri motion ra |
+009 |
|
Sec motion ra |
+013 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
+002 |
|
| Notes |
|
|
rPM=0.749
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagittarius |
|
Tycho2 |
6293-01421-1 |
|
Gaia DR2 |
4079122138321533312 |
|
