20429-1757 ARA 499 AB
20h 42m 56.60s -17° 55' 47.1" P.A. 172.00 sep 14.1 mag 10.52,11.40
| Coord 2000 |
20429-1757 |
|
Discov num |
ARA 499 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 42 56.60 -17 55 47.1 |
|
| Date first |
1917 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
177 |
|
Pa last |
171.8 |
|
P.A. Now (θ) |
171.8° |
|
| Sep first |
14.5 |
|
Sep last |
14.063 |
|
Sep. Now (ρ) |
14.063" |
|
| Mag pri |
10.52 |
|
Mag sec |
11.40 |
|
delta mag (ΔM) |
0.88 |
|
Spectral class |
|
|
| Pri motion ra |
+003 |
|
Sec motion ra |
+016 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
-008 |
|
| Notes |
|
|
rPM=0.729
Nature of this double is uncertain.
20429-1757 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 42 57 -17 55 47 |
TDT 2493 Aa,Ab |
1991 |
1 |
261 |
0.7 |
10.95 |
11.44 |
0.49 |
|
|
| Show |
|
|
20 42 57 -17 55 47 |
ARA 499 AB |
2015 |
7 |
172 |
14.1 |
10.52 |
11.40 |
0.88 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Capricornus |
|
Tycho2 |
6335-01865-1 |
|
Gaia DR2 |
6861817323217529088 |
|
