21172-0414 BU 161 BC
21h 17m 09.43s -04° 12' 42.8" P.A. 315.00 sep 8.2 mag 10.29,11.60
| Coord 2000 |
21172-0414 |
|
Discov num |
BU 161 |
|
Comp |
BC |
|
Coord arcsec 2000 |
21 17 09.43 -04 12 42.8 |
|
| Date first |
1873 |
|
Date last |
2015 |
|
Obs |
13 |
|
| Pa first |
300 |
|
Pa last |
314.9 |
|
P.A. Now (θ) |
314.9° |
|
| Sep first |
2.5 |
|
Sep last |
8.23 |
|
Sep. Now (ρ) |
8.23" |
|
| Mag pri |
10.29 |
|
Mag sec |
11.60 |
|
delta mag (ΔM) |
1.31 |
|
Spectral class |
|
|
| Pri motion ra |
+010 |
|
Sec motion ra |
-009 |
|
| Pri motion dec |
+000 |
|
Sec motion dec |
+022 |
|
| Notes |
N
(See Notes) |
|
rPM=1.223
This double is not physical.
21172-0414 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 202632 |
145265 |
21 17 11 -04 14 22 |
BU 161 AB |
2014 |
15 |
350 |
101.2 |
8.18 |
10.29 |
2.11 |
|
|
| Show |
|
145265 |
21 17 11 -04 14 22 |
BU 161 AD |
2015 |
8 |
315 |
32.4 |
8.18 |
13.60 |
5.42 |
|
|
| Show |
|
145265 |
21 17 11 -04 14 22 |
BU 161 AE |
2015 |
6 |
327 |
39.9 |
8.18 |
13.10 |
4.92 |
|
|
| Show |
|
|
21 17 09 -04 12 43 |
BU 161 BC |
2015 |
13 |
315 |
8.2 |
10.29 |
11.60 |
1.31 |
|
<=== |
| Show |
|
|
21 17 09 -04 13 59 |
BU 161 DE |
2015 |
6 |
8 |
10.8 |
13.70 |
13.70 |
0.00 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Aquarius |
|
Tycho2 |
5202-00406-1 |
|
Gaia DR2 |
6911816343180784512 |
|
