21424+1750 BU 691 AC
21h 42m 25.22s +17° 50' 09.5" P.A. 249.00 sep 84.3 mag 8.90,12.53 Sp K0
| Coord 2000 |
21424+1750 |
|
Discov num |
BU 691 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 42 25.22 +17 50 09.5 |
|
| Date first |
1900 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
251 |
|
Pa last |
248.9 |
|
P.A. Now (θ) |
248.9° |
|
| Sep first |
87.5 |
|
Sep last |
84.262 |
|
Sep. Now (ρ) |
84.262" |
|
| Mag pri |
8.90 |
|
Mag sec |
12.53 |
|
delta mag (ΔM) |
3.63 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
-021 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
-005 |
|
Sec motion dec |
-003 |
|
| Notes |
N
(See Notes) |
|
rPM=0.977
This double is not physical.
21424+1750 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 206556 |
107339 |
21 42 25 +17 50 10 |
HU 373 AB |
2011 |
17 |
300 |
0.9 |
8.90 |
10.44 |
1.54 |
|
|
| Show |
|
107339 |
21 42 25 +17 50 10 |
BU 691 AC |
2015 |
9 |
249 |
84.3 |
8.90 |
12.53 |
3.63 |
|
<=== |
| Show |
|
107339 |
21 42 25 +17 50 10 |
BU 691 AE |
2015 |
12 |
80 |
118.8 |
8.90 |
12.30 |
3.40 |
|
|
| Show |
|
|
21 42 20 +17 49 39 |
FOX 9057 CD |
2015 |
8 |
238 |
14.7 |
11.70 |
12.30 |
0.60 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pegasus |
|
SAO |
107339 |
|
Tycho2 |
1669-00828-1 |
|
Gaia DR2 |
1774144371710713856 |
|
| HD |
206556 |
|
