20448-0917 HLD 163 AB (HD 197554)
20h 44m 46.56s -09° 16' 49.8" P.A. 99.00 sep 2.2 mag 9.20,11.80 Sp A0
| Coord 2000 |
20448-0917 |
|
Discov num |
HLD 163 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 44 46.56 -09 16 49.8 |
|
| Date first |
1882 |
|
Date last |
2015 |
|
Obs |
6 |
|
| Pa first |
100 |
|
Pa last |
98.8 |
|
P.A. Now (θ) |
98.8° |
|
| Sep first |
2.0 |
|
Sep last |
2.177 |
|
Sep. Now (ρ) |
2.177" |
|
| Mag pri |
9.20 |
|
Mag sec |
11.80 |
|
delta mag (ΔM) |
2.6 |
|
Spectral class |
A0 (white) |
|
| Pri motion ra |
+003 |
|
Sec motion ra |
|
|
| Pri motion dec |
-009 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
20448-0917 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 197554 |
144760 |
20 44 47 -09 16 50 |
HLD 163 AB |
2015 |
6 |
99 |
2.2 |
9.20 |
11.80 |
2.60 |
|
<=== |
| Show |
|
144760 |
20 44 47 -09 16 50 |
HLD 163 AC |
2015 |
6 |
239 |
17.8 |
9.20 |
13.00 |
3.80 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 197554 |
|
Constellation |
Aquarius |
|
SAO |
144760 |
|
Tycho2 |
5756-00110-1 |
|
| Gaia DR2 |
6903161954016126976 |
|
HD |
197554 |
|
