21531+4826 GII 87 AC
21h 53m 02.23s +48° 25' 42.4" P.A. 31.00 sep 6.2 mag 11.70,14.30
| Coord 2000 |
21531+4826 |
|
Discov num |
GII 87 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 53 02.23 +48 25 42.4 |
|
| Date first |
1999 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
30 |
|
Pa last |
30.8 |
|
P.A. Now (θ) |
30.8° |
|
| Sep first |
6.2 |
|
Sep last |
6.229 |
|
Sep. Now (ρ) |
6.229" |
|
| Mag pri |
11.70 |
|
Mag sec |
14.30 |
|
delta mag (ΔM) |
2.6 |
|
Spectral class |
|
|
| Pri motion ra |
+002 |
|
Sec motion ra |
|
|
| Pri motion dec |
-001 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
21531+4826 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 53 02 +48 25 42 |
COU 2319 AB |
2014 |
4 |
59 |
0.8 |
11.70 |
14.30 |
2.60 |
|
|
| Show |
|
|
21 53 02 +48 25 42 |
GII 87 AC |
2015 |
8 |
31 |
6.2 |
11.70 |
14.30 |
2.60 |
|
<=== |
| Show |
|
|
21 53 02 +48 25 42 |
COU 2319 AD |
2014 |
1 |
88 |
2.4 |
11.70 |
|
|
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3608-00636-1 |
|
Gaia DR2 |
1976340608693165056 |
|
