21183+3456 BU 289 AC
21h 18m 18.20s +34° 55' 36.2" P.A. 251.00 sep 13.0 mag 9.13,13.00 Sp F8
| Coord 2000 |
21183+3456 |
|
Discov num |
BU 289 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 18 18.20 +34 55 36.2 |
|
| Date first |
1874 |
|
Date last |
2015 |
|
Obs |
15 |
|
| Pa first |
270 |
|
Pa last |
251.4 |
|
P.A. Now (θ) |
251.4° |
|
| Sep first |
5.0 |
|
Sep last |
12.988 |
|
Sep. Now (ρ) |
12.988" |
|
| Mag pri |
9.13 |
|
Mag sec |
13.00 |
|
delta mag (ΔM) |
3.87 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
+028 |
|
Sec motion ra |
|
|
| Pri motion dec |
+009 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
21183+3456 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 202974 |
71182 |
21 18 18 +34 55 36 |
BU 289 AB |
2016 |
27 |
128 |
0.8 |
9.13 |
9.66 |
0.53 |
|
|
| Show |
|
71182 |
21 18 18 +34 55 36 |
BU 289 AC |
2015 |
15 |
251 |
13.0 |
9.13 |
13.00 |
3.87 |
|
<=== |
| Show |
|
71182 |
21 18 18 +34 55 36 |
SLE 384 AD |
2015 |
14 |
189 |
43.3 |
9.13 |
11.98 |
2.85 |
|
|
| Show |
|
71182 |
21 18 18 +34 55 36 |
FYM 142 AE |
2015 |
8 |
94 |
36.7 |
9.13 |
13.50 |
4.37 |
|
|
| Show |
|
71182 |
21 18 18 +34 55 36 |
FYM 142 AF |
2015 |
8 |
200 |
45.9 |
9.13 |
14.90 |
5.77 |
|
|
| Show |
|
71182 |
21 18 18 +34 55 36 |
FYM 142 AG |
2015 |
8 |
272 |
68.8 |
9.13 |
13.70 |
4.57 |
|
|
| Show |
|
71182 |
21 18 18 +34 55 36 |
FYM 142 AH |
2015 |
5 |
274 |
61.5 |
9.13 |
14.60 |
5.47 |
|
|
| Show |
|
|
21 18 18 +34 54 54 |
FYM 142 DF |
2016 |
8 |
268 |
8.6 |
11.98 |
14.90 |
2.92 |
|
|
| Show |
|
|
21 18 21 +34 55 34 |
FYM 142 EI |
2015 |
7 |
273 |
9.1 |
13.50 |
15.70 |
2.20 |
|
|
| Show |
|
|
21 18 13 +34 55 38 |
FYM 142 GH |
2015 |
7 |
69 |
7.9 |
13.70 |
14.60 |
0.90 |
|
|
Ninefold system
9 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
71182 |
|
Tycho2 |
2711-00746-1 |
|
Gaia DR2 |
1867348872887304832 |
|
| HD |
202974 |
|
