20136+3553 SEI 1021 AD
20h 13m 34.11s +35° 52' 53.8" P.A. 121.00 sep 6.9 mag 10.90,15.10
| Coord 2000 |
20136+3553 |
|
Discov num |
SEI1021 |
|
Comp |
AD |
|
Coord arcsec 2000 |
20 13 34.11 +35 52 53.8 |
|
| Date first |
1999 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
119 |
|
Pa last |
121 |
|
P.A. Now (θ) |
121° |
|
| Sep first |
6.8 |
|
Sep last |
6.853 |
|
Sep. Now (ρ) |
6.853" |
|
| Mag pri |
10.90 |
|
Mag sec |
15.10 |
|
delta mag (ΔM) |
4.2 |
|
Spectral class |
|
|
| Pri motion ra |
-007 |
|
Sec motion ra |
|
|
| Pri motion dec |
-009 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
20136+3553 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 13 34 +35 52 54 |
SEI 1021 AB |
2015 |
8 |
248 |
13.4 |
10.90 |
12.40 |
1.50 |
|
|
| Show |
|
|
20 13 34 +35 52 54 |
SEI 1021 AC |
2015 |
2 |
253 |
10.3 |
10.90 |
14.20 |
3.30 |
|
|
| Show |
|
|
20 13 34 +35 52 54 |
SEI 1021 AD |
2015 |
7 |
121 |
6.9 |
10.90 |
15.10 |
4.20 |
|
<=== |
| Show |
|
|
20 13 33 +35 52 48 |
SEI 1021 BC |
2016 |
3 |
52 |
3.3 |
12.40 |
14.20 |
1.80 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2683-03118-1 |
|
Gaia DR2 |
2058916891197902336 |
|
