21424+1750 HU 373 AB (HD 206556)
21h 42m 25.22s +17° 50' 09.5" P.A. 300.00 sep 0.9 mag 8.90,10.44 Sp K0
| Coord 2000 |
21424+1750 |
|
Discov num |
HU 373 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 42 25.22 +17 50 09.5 |
|
| Date first |
1877 |
|
Date last |
2011 |
|
Obs |
17 |
|
| Pa first |
328 |
|
Pa last |
300.4 |
|
P.A. Now (θ) |
300.4° |
|
| Sep first |
1.2 |
|
Sep last |
0.89 |
|
Sep. Now (ρ) |
0.89" |
|
| Mag pri |
8.90 |
|
Mag sec |
10.44 |
|
delta mag (ΔM) |
1.54 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
-024 |
|
Sec motion ra |
-024 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
-006 |
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
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
| Name |
HD 206556 |
|
Constellation |
Pegasus |
|
SAO |
107339 |
|
Tycho2 |
1669-00828-1 |
|
| Gaia DR2 |
1774144371710713856 |
|
HD |
206556 |
|
ADS |
15240 |
|
