21556+2823 MLB 577 BC
21h 55m 34.30s +28° 23' 54.1" P.A. 18.00 sep 6.4 mag 11.10,12.60
Coord 2000 |
21556+2823 |
|
Discov num |
MLB 577 |
|
Comp |
BC |
|
Coord arcsec 2000 |
21 55 34.30 +28 23 54.1 |
|
Date first |
1928 |
|
Date last |
2015 |
|
Obs |
8 |
|
Pa first |
25 |
|
Pa last |
18.1 |
|
P.A. Now (θ) |
18.1° |
|
Sep first |
5.7 |
|
Sep last |
6.371 |
|
Sep. Now (ρ) |
6.371" |
|
Mag pri |
11.10 |
|
Mag sec |
12.60 |
|
delta mag (ΔM) |
1.5 |
|
Spectral class |
|
|
Pri motion ra |
-006 |
|
Sec motion ra |
|
|
Pri motion dec |
-007 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
21556+2823 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
21 55 37 +28 23 30 |
MLB 577 AB |
2014 |
9 |
300 |
48.8 |
10.57 |
12.41 |
1.84 |
|
|
Show |
|
|
21 55 34 +28 23 54 |
MLB 577 BC |
2015 |
8 |
18 |
6.4 |
11.10 |
12.60 |
1.50 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Pegasus |
|
Gaia DR2 |
1896146873419840256 |
|