20556+3809 SEI 1317 AB
20h 55m 35.44s +38° 08' 26.7" P.A. 171.00 sep 22.7 mag 10.42,12.64
| Coord 2000 |
20556+3809 |
|
Discov num |
SEI1317 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 55 35.44 +38 08 26.7 |
|
| Date first |
1896 |
|
Date last |
2014 |
|
Obs |
6 |
|
| Pa first |
163 |
|
Pa last |
171.3 |
|
P.A. Now (θ) |
171.3° |
|
| Sep first |
22.1 |
|
Sep last |
22.689 |
|
Sep. Now (ρ) |
22.689" |
|
| Mag pri |
10.42 |
|
Mag sec |
12.64 |
|
delta mag (ΔM) |
2.22 |
|
Spectral class |
|
|
| Pri motion ra |
+016 |
|
Sec motion ra |
-010 |
|
| Pri motion dec |
+010 |
|
Sec motion dec |
-006 |
|
| Notes |
|
|
rPM=1.618
This double is not physical.
20556+3809 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 55 35 +38 08 27 |
COU 2222 Aa,Ab |
2014 |
7 |
109 |
0.7 |
11.20 |
11.20 |
0.00 |
|
|
| Show |
|
|
20 55 35 +38 08 27 |
SEI 1317 AB |
2014 |
6 |
171 |
22.7 |
10.42 |
12.64 |
2.22 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3167-01735-1 |
|
