21441+2845 ES 521 DE
21h 44m 19.17s +28° 46' 53.7" P.A. 286.00 sep 17.5 mag 6.94,13.13 Sp A5 dist. 86.21 pc (281.22 l.y.)
| Coord 2000 |
21441+2845 |
|
Discov num |
ES 521 |
|
Comp |
DE |
|
Coord arcsec 2000 |
21 44 19.17 +28 46 53.7 |
|
| Date first |
1907 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
270 |
|
Pa last |
286.1 |
|
P.A. Now (θ) |
286.1° |
|
| Sep first |
14.3 |
|
Sep last |
17.47 |
|
Sep. Now (ρ) |
17.47" |
|
| Mag pri |
6.94 |
|
Mag sec |
13.13 |
|
delta mag (ΔM) |
6.19 |
|
Spectral class |
A5 (white) |
|
| Pri motion ra |
-001 |
|
Sec motion ra |
|
|
| Pri motion dec |
-054 |
|
Sec motion dec |
|
|
| Notes |
N
U
(See Notes, Proper motion indicates non-physical) |
|
This double is not physical.
21441+2845 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Mu1 Cyg |
89940 |
21 44 09 +28 44 33 |
STF 2822 AB |
2022 |
735 |
325 |
1.6 |
4.75 |
6.18 |
1.43 |
Y |
|
| Show |
|
|
21 44 09 +28 44 33 |
STF 2822 AC |
2012 |
16 |
292 |
76.6 |
4.75 |
12.93 |
8.18 |
|
|
| Show |
|
89939 |
21 44 09 +28 44 33 |
STF 2822 AD |
2019 |
56 |
43 |
197.0 |
4.75 |
6.94 |
2.19 |
|
|
| Show |
|
|
21 44 09 +28 44 33 |
FYM 25 AF |
2012 |
3 |
72 |
111.5 |
4.75 |
12.64 |
7.89 |
|
|
| Show |
|
|
21 44 09 +28 44 33 |
FYM 25 AG |
2012 |
3 |
73 |
168.1 |
4.75 |
13.77 |
9.02 |
|
|
| Show |
|
|
21 44 08 +28 44 35 |
STF 2822 BD |
2012 |
24 |
45 |
196.7 |
6.18 |
6.94 |
0.76 |
|
|
| Show |
|
|
21 44 19 +28 46 54 |
ES 521 DE |
2015 |
7 |
286 |
17.5 |
6.94 |
13.13 |
6.19 |
|
<=== |
| Show |
|
|
21 44 19 +28 46 54 |
FYM 25 DG |
2012 |
3 |
164 |
89.6 |
6.94 |
13.77 |
6.83 |
|
|
Septuple system
7 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
89944 |
|
HIP |
107326 |
|
Tycho2 |
2201-00786-1 |
|
| Gaia DR2 |
1801211053747997568 |
|
HD |
206874 |
|
GC |
30442 |
|
BD |
BD+28 4171 |
|
| Distance |
86.21 |
|
Distance ly |
281.22 |
|
