20204+3840 SEI 1089 AC
20h 20m 18.47s +38° 39' 29.5" P.A. 17.00 sep 28.2 mag 10.30,10.47
| Coord 2000 |
20204+3840 |
|
Discov num |
SEI1089 |
|
Comp |
AC |
|
Coord arcsec 2000 |
20 20 18.47 +38 39 29.5 |
|
| Date first |
1895 |
|
Date last |
2015 |
|
Obs |
11 |
|
| Pa first |
20 |
|
Pa last |
16.9 |
|
P.A. Now (θ) |
16.9° |
|
| Sep first |
27.6 |
|
Sep last |
28.23 |
|
Sep. Now (ρ) |
28.23" |
|
| Mag pri |
10.30 |
|
Mag sec |
10.47 |
|
delta mag (ΔM) |
0.17 |
|
Spectral class |
|
|
| Pri motion ra |
+036 |
|
Sec motion ra |
-007 |
|
| Pri motion dec |
+019 |
|
Sec motion dec |
+003 |
|
| Notes |
|
|
rPM=1.127
This double is not physical.
20204+3840 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 20 18 +38 39 30 |
SEI 1088 AB |
2015 |
8 |
238 |
4.3 |
10.30 |
11.60 |
1.30 |
|
|
| Show |
|
|
20 20 18 +38 39 30 |
SEI 1089 AC |
2015 |
11 |
17 |
28.2 |
10.30 |
10.47 |
0.17 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3152-01641-1 |
|
Gaia DR2 |
2061287880623328384 |
|
