20546+4042 ES 1685 AB
20h 54m 42.00s +40° 41' 38.9" P.A. 73.00 sep 24.2 mag 11.02,14.00
Coord 2000 |
20546+4042 |
|
Discov num |
ES 1685 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 54 42.00 +40 41 38.9 |
|
Date first |
1892 |
|
Date last |
2015 |
|
Obs |
5 |
|
Pa first |
76 |
|
Pa last |
72.8 |
|
P.A. Now (θ) |
72.8° |
|
Sep first |
21.6 |
|
Sep last |
24.195 |
|
Sep. Now (ρ) |
24.195" |
|
Mag pri |
11.02 |
|
Mag sec |
14.00 |
|
delta mag (ΔM) |
2.98 |
|
Spectral class |
|
|
Pri motion ra |
-003 |
|
Sec motion ra |
-015 |
|
Pri motion dec |
-017 |
|
Sec motion dec |
-012 |
|
Notes |
|
|
rPM=0.677
Nature of this double is uncertain.
20546+4042 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
20 54 42 +40 41 39 |
ES 1685 AB |
2015 |
5 |
73 |
24.2 |
11.02 |
14.00 |
2.98 |
|
<=== |
Show |
|
|
20 54 44 +40 41 46 |
ES 1685 BC |
2015 |
4 |
74 |
2.8 |
14.00 |
14.50 |
0.50 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3171-00377-1 |
|
Gaia DR2 |
2065478707847252736 |
|