20343+4520 ES 804 BC
20h 34m 21.43s +45° 20' 09.1" P.A. 128.00 sep 2.2 mag 11.52,12.60
Coord 2000 |
20343+4520 |
|
Discov num |
ES 804 |
|
Comp |
BC |
|
Coord arcsec 2000 |
20 34 21.43 +45 20 09.1 |
|
Date first |
1909 |
|
Date last |
2009 |
|
Obs |
4 |
|
Pa first |
123 |
|
Pa last |
128.4 |
|
P.A. Now (θ) |
128.4° |
|
Sep first |
2.4 |
|
Sep last |
2.245 |
|
Sep. Now (ρ) |
2.245" |
|
Mag pri |
11.52 |
|
Mag sec |
12.60 |
|
delta mag (ΔM) |
1.08 |
|
Spectral class |
|
|
Pri motion ra |
-008 |
|
Sec motion ra |
|
|
Pri motion dec |
-002 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
20343+4520 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
20 34 19 +45 20 23 |
ES 804 AB |
2015 |
12 |
117 |
30.8 |
10.56 |
11.52 |
0.96 |
|
|
Show |
|
|
20 34 21 +45 20 09 |
ES 804 BC |
2009 |
4 |
128 |
2.2 |
11.52 |
12.60 |
1.08 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3573-00996-1 |
|
Gaia DR2 |
2070740695624001152 |
|