20472+3422 BU 677 AB (T Cyg)
20h 47m 10.72s +34° 22' 26.8" P.A. 120.00 sep 10.0 mag 4.94,10.03 Sp K3III dist. 136.43 pc (445.03 l.y.)
| Coord 2000 |
20472+3422 |
|
Discov num |
BU 677 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 47 10.72 +34 22 26.8 |
|
| Date first |
1877 |
|
Date last |
2016 |
|
Obs |
18 |
|
| Pa first |
121 |
|
Pa last |
120.4 |
|
P.A. Now (θ) |
120.4° |
|
| Sep first |
10.0 |
|
Sep last |
9.987 |
|
Sep. Now (ρ) |
9.987" |
|
| Mag pri |
4.94 |
|
Mag sec |
10.03 |
|
delta mag (ΔM) |
5.09 |
|
Spectral class |
K3III (yellow-orange) |
|
| Pri motion ra |
+048 |
|
Sec motion ra |
|
|
| Pri motion dec |
+006 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
20472+3422 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
T Cyg |
70499 |
20 47 11 +34 22 27 |
BU 677 AB |
2016 |
18 |
120 |
10.0 |
4.94 |
10.03 |
5.09 |
|
<=== |
| Show |
|
70499 |
20 47 11 +34 22 27 |
BU 677 AC |
2015 |
7 |
211 |
16.8 |
4.94 |
11.20 |
6.26 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
T Cyg |
|
Constellation |
Cygnus |
|
SAO |
70499 |
|
HIP |
102571 |
|
| Tycho2 |
2695-04138-1 |
|
Gaia DR2 |
1869341845103357312 |
|
HD |
198134 |
|
HR |
7956 |
|
| GC |
28981 |
|
ADS |
14290 |
|
BD |
BD+33 4028 |
|
Distance |
136.43 |
|
| Distance ly |
445.03 |
|
