20549+3803 SEI 1309 AB
20h 54m 49.34s +38° 02' 50.0" P.A. 120.00 sep 6.5 mag 11.18,12.40
| Coord 2000 |
20549+3803 |
|
Discov num |
SEI1309 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 54 49.34 +38 02 50.0 |
|
| Date first |
1896 |
|
Date last |
2016 |
|
Obs |
11 |
|
| Pa first |
121 |
|
Pa last |
120.3 |
|
P.A. Now (θ) |
120.3° |
|
| Sep first |
7.0 |
|
Sep last |
6.475 |
|
Sep. Now (ρ) |
6.475" |
|
| Mag pri |
11.18 |
|
Mag sec |
12.40 |
|
delta mag (ΔM) |
1.22 |
|
Spectral class |
|
|
| Pri motion ra |
+007 |
|
Sec motion ra |
+011 |
|
| Pri motion dec |
-004 |
|
Sec motion dec |
-002 |
|
| Notes |
|
|
rPM=0.4
Nature of this double is uncertain.
20549+3803 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 54 49 +38 02 50 |
TDT 2626 Aa,Ab |
1991 |
1 |
20 |
0.7 |
11.83 |
11.94 |
0.11 |
|
|
| Show |
|
|
20 54 49 +38 02 50 |
SEI 1309 AB |
2016 |
11 |
120 |
6.5 |
11.18 |
12.40 |
1.22 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3167-01571-1 |
|
Gaia DR2 |
1872479438970674176 |
|
