20580+3918 ES 1985 AB
20h 58m 05.52s +39° 18' 28.4" P.A. 276.00 sep 8.4 mag 10.91,13.20
| Coord 2000 |
20580+3918 |
|
Discov num |
ES 1985 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 58 05.52 +39 18 28.4 |
|
| Date first |
1895 |
|
Date last |
2015 |
|
Obs |
11 |
|
| Pa first |
301 |
|
Pa last |
276.2 |
|
P.A. Now (θ) |
276.2° |
|
| Sep first |
6.0 |
|
Sep last |
8.392 |
|
Sep. Now (ρ) |
8.392" |
|
| Mag pri |
10.91 |
|
Mag sec |
13.20 |
|
delta mag (ΔM) |
2.29 |
|
Spectral class |
|
|
| Pri motion ra |
+014 |
|
Sec motion ra |
-017 |
|
| Pri motion dec |
+001 |
|
Sec motion dec |
-016 |
|
| Notes |
|
|
rPM=1.514
This double is not physical.
20580+3918 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 58 06 +39 18 28 |
ES 1985 AB |
2015 |
11 |
276 |
8.4 |
10.91 |
13.20 |
2.29 |
|
<=== |
| Show |
|
|
20 58 06 +39 18 28 |
SEI 1338 AC |
2015 |
14 |
277 |
32.7 |
10.91 |
10.75 |
0.16 |
|
|
| Show |
|
|
20 58 05 +39 18 30 |
BKO 476 BD |
2015 |
8 |
246 |
6.0 |
13.20 |
14.00 |
0.80 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3167-02001-1 |
|
Gaia DR2 |
1873011258999669504 |
|
ADS |
14488 |
|
