21129+3014 BAS 7 Aa,Ab
21h 12m 56.19s +30° 13' 36.9" P.A. 246.00 sep 0.0 mag 3.20,13.20 Sp G8III+DA4 dist. 43.88 pc (143.14 l.y.)
| Coord 2000 |
21129+3014 |
|
Discov num |
BAS 7 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
21 12 56.19 +30 13 36.9 |
|
| Date first |
2000 |
|
Date last |
2000 |
|
Obs |
1 |
|
| Pa first |
246 |
|
Pa last |
246 |
|
P.A. Now (θ) |
246° |
|
| Sep first |
0.0 |
|
Sep last |
0.036 |
|
Sep. Now (ρ) |
0.036" |
|
| Mag pri |
3.20 |
|
Mag sec |
13.20 |
|
delta mag (ΔM) |
10 |
|
Spectral class |
G8III+DA4 (yellow/white dwarf) |
|
| Pri motion ra |
+007 |
|
Sec motion ra |
|
|
| Pri motion dec |
-068 |
|
Sec motion dec |
|
|
| Notes |
N
V
(See Notes, Proper motion indicates physical) |
|
This double is physical.
21129+3014 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
71070 |
21 12 56 +30 13 37 |
BAS 7 Aa,Ab |
2000 |
1 |
246 |
0.0 |
3.20 |
13.20 |
10.00 |
|
<=== |
| Show |
Zet Cyg |
71070 |
21 12 56 +30 13 37 |
BUP 227 AB |
2015 |
8 |
205 |
65.2 |
3.30 |
11.70 |
8.40 |
|
|
| Show |
|
71070 |
21 12 56 +30 13 37 |
BUP 227 AC |
2015 |
7 |
300 |
91.5 |
3.30 |
12.73 |
9.43 |
|
|
| Show |
|
71070 |
21 12 56 +30 13 37 |
BUP 227 AD |
2015 |
8 |
63 |
105.3 |
3.30 |
12.70 |
9.40 |
|
|
| Show |
|
71070 |
21 12 56 +30 13 37 |
FYM 141 AE |
2015 |
3 |
76 |
42.8 |
3.30 |
14.10 |
10.80 |
|
|
| Show |
|
71070 |
21 12 56 +30 13 37 |
FYM 141 AF |
2015 |
4 |
267 |
63.6 |
3.30 |
14.00 |
10.70 |
|
|
| Show |
|
71070 |
21 12 56 +30 13 37 |
FYM 141 AG |
2015 |
4 |
97 |
70.7 |
3.30 |
15.10 |
11.80 |
|
|
Octuple system
7 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
71070 |
|
HIP |
104732 |
|
Tycho2 |
2702-02764-1 |
|
| Gaia DR2 |
1851924859347035520 |
|
HD |
202109 |
|
HR |
8115 |
|
GC |
29661 |
|
| BD |
BD+29 4348 |
|
Bayer |
Zeta Cygni |
|
Bayer name |
Zet Cyg |
|
Flamsteed |
64 Cygni |
|
| Flamsteed name |
64 Cyg |
|
FK5 |
797 |
|
Distance |
43.88 |
|
Distance ly |
143.14 |
|
| Bayer greek |
ζ Cyg |
|
