21215+3719 ROE 23 CD
21h 21m 27.78s +37° 17' 47.9" P.A. 261.00 sep 13.1 mag 11.42,11.82
| Coord 2000 |
21215+3719 |
|
Discov num |
ROE 23 |
|
Comp |
CD |
|
Coord arcsec 2000 |
21 21 27.78 +37 17 47.9 |
|
| Date first |
1909 |
|
Date last |
2015 |
|
Obs |
11 |
|
| Pa first |
266 |
|
Pa last |
260.8 |
|
P.A. Now (θ) |
260.8° |
|
| Sep first |
10.0 |
|
Sep last |
13.09 |
|
Sep. Now (ρ) |
13.09" |
|
| Mag pri |
11.42 |
|
Mag sec |
11.82 |
|
delta mag (ΔM) |
0.4 |
|
Spectral class |
|
|
| Pri motion ra |
-005 |
|
Sec motion ra |
-017 |
|
| Pri motion dec |
+004 |
|
Sec motion dec |
-011 |
|
| Notes |
|
|
rPM=0.949
This double is not physical.
21215+3719 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 21 33 +37 17 52 |
ROE 24 AB |
2015 |
10 |
168 |
10.3 |
11.98 |
11.53 |
0.45 |
|
|
| Show |
|
|
21 21 33 +37 17 52 |
ROE 24 AC |
2015 |
8 |
266 |
68.7 |
11.98 |
11.42 |
0.56 |
|
|
| Show |
|
|
21 21 33 +37 17 52 |
ROE 24 AD |
2015 |
12 |
266 |
81.7 |
11.98 |
11.82 |
0.16 |
|
|
| Show |
|
|
21 21 28 +37 17 48 |
ROE 23 CD |
2015 |
11 |
261 |
13.1 |
11.42 |
11.82 |
0.40 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2715-00851-1 |
|
Gaia DR2 |
1963914791568702720 |
|
