21258+3640 S 790 AC
21h 25m 47.02s +36° 40' 02.5" P.A. 99.00 sep 53.1 mag 5.89,10.22 Sp B0Ib dist. 2777.78 pc (9061.12 l.y.)
Coord 2000 |
21258+3640 |
|
Discov num |
S 790 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 25 47.02 +36 40 02.5 |
|
Date first |
1895 |
|
Date last |
2015 |
|
Obs |
25 |
|
Pa first |
98 |
|
Pa last |
98.7 |
|
P.A. Now (θ) |
98.7° |
|
Sep first |
53.9 |
|
Sep last |
53.143 |
|
Sep. Now (ρ) |
53.143" |
|
Mag pri |
5.89 |
|
Mag sec |
10.22 |
|
delta mag (ΔM) |
4.33 |
|
Spectral class |
B0Ib (blue-white) |
|
Pri motion ra |
+008 |
|
Sec motion ra |
-001 |
|
Pri motion dec |
-010 |
|
Sec motion dec |
-016 |
|
Notes |
N
(See Notes) |
|
rPM=0.675
Nature of this double is uncertain.
21258+3640 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
69 Cyg |
71329 |
21 25 47 +36 40 02 |
S 790 AB |
2015 |
13 |
28 |
34.5 |
5.89 |
11.71 |
5.82 |
|
|
Show |
|
71329 |
21 25 47 +36 40 02 |
S 790 AC |
2015 |
25 |
99 |
53.1 |
5.89 |
10.22 |
4.33 |
|
<=== |
Show |
|
|
21 25 51 +36 39 55 |
FYM 124 CD |
2015 |
7 |
84 |
19.4 |
10.22 |
13.90 |
3.68 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
SAO |
71329 |
|
HIP |
105811 |
|
Tycho2 |
2715-03977-1 |
|
Gaia DR2 |
1963714268134133120 |
|
HD |
204172 |
|
HR |
8209 |
|
GC |
30016 |
|
ADS |
14969 |
|
BD |
BD+36 4557 |
|
Flamsteed |
69 Cygni |
|
Flamsteed name |
69 Cyg |
|
Distance |
2777.78 |
|
Distance ly |
9061.12 |
|