21336+3905 COU 1975 AB
21h 33m 39.09s +39° 04' 57.2" P.A. 359.00 sep 21.4 mag 10.49,11.06
Coord 2000 |
21336+3905 |
|
Discov num |
COU1975 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 33 39.09 +39 04 57.2 |
|
Date first |
1928 |
|
Date last |
2015 |
|
Obs |
11 |
|
Pa first |
4 |
|
Pa last |
359.2 |
|
P.A. Now (θ) |
359.2° |
|
Sep first |
22.5 |
|
Sep last |
21.41 |
|
Sep. Now (ρ) |
21.41" |
|
Mag pri |
10.49 |
|
Mag sec |
11.06 |
|
delta mag (ΔM) |
0.57 |
|
Spectral class |
|
|
Pri motion ra |
+020 |
|
Sec motion ra |
-002 |
|
Pri motion dec |
+008 |
|
Sec motion dec |
-004 |
|
Notes |
|
|
rPM=1.163
This double is not physical.
21336+3905 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
21 33 39 +39 04 57 |
COU 1975 Aa,Ab |
2014 |
5 |
331 |
0.3 |
11.20 |
11.20 |
0.00 |
|
|
Show |
|
|
21 33 39 +39 04 57 |
COU 1975 AB |
2015 |
11 |
359 |
21.4 |
10.49 |
11.06 |
0.57 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3183-02123-1 |
|