21474+2834 A 300 AD
21h 47m 26.09s +28° 34' 26.4" P.A. 170.00 sep 8.4 mag 9.09,16.20 Sp A2
| Coord 2000 |
21474+2834 |
|
Discov num |
A 300 |
|
Comp |
AD |
|
Coord arcsec 2000 |
21 47 26.09 +28 34 26.4 |
|
| Date first |
1901 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
178 |
|
Pa last |
170.1 |
|
P.A. Now (θ) |
170.1° |
|
| Sep first |
9.0 |
|
Sep last |
8.433 |
|
Sep. Now (ρ) |
8.433" |
|
| Mag pri |
9.09 |
|
Mag sec |
16.20 |
|
delta mag (ΔM) |
7.11 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
-008 |
|
Sec motion ra |
|
|
| Pri motion dec |
-014 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
21474+2834 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 47 26 +28 34 26 |
A 300 AB |
2018 |
15 |
252 |
2.3 |
9.09 |
10.50 |
1.41 |
|
|
| Show |
|
|
21 47 26 +28 34 26 |
A 300 AC |
2015 |
7 |
29 |
7.5 |
9.09 |
15.70 |
6.61 |
|
|
| Show |
|
|
21 47 26 +28 34 26 |
A 300 AD |
2015 |
7 |
170 |
8.4 |
9.09 |
16.20 |
7.11 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pegasus |
|
Tycho2 |
2214-01244-1 |
|
Gaia DR2 |
1801099105424910848 |
|
