21358+3101 HJ 939 CD
21h 35m 42.60s +31° 00' 47.6" P.A. 344.00 sep 15.1 mag 11.07,14.67
| Coord 2000 |
21358+3101 |
|
Discov num |
HJ 939 |
|
Comp |
CD |
|
Coord arcsec 2000 |
21 35 42.60 +31 00 47.6 |
|
| Date first |
1827 |
|
Date last |
2018 |
|
Obs |
10 |
|
| Pa first |
340 |
|
Pa last |
343.8 |
|
P.A. Now (θ) |
343.8° |
|
| Sep first |
10.0 |
|
Sep last |
15.07 |
|
Sep. Now (ρ) |
15.07" |
|
| Mag pri |
11.07 |
|
Mag sec |
14.67 |
|
delta mag (ΔM) |
3.6 |
|
Spectral class |
|
|
| Pri motion ra |
+001 |
|
Sec motion ra |
|
|
| Pri motion dec |
+004 |
|
Sec motion dec |
|
|
| Notes |
U
(Proper motion indicates non-physical) |
|
This double is not physical.
21358+3101 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
71494 |
21 35 46 +31 00 35 |
HJ 939 AB |
2018 |
10 |
176 |
15.6 |
8.06 |
12.78 |
4.72 |
|
|
| Show |
HD 205617 |
71494 |
21 35 46 +31 00 35 |
STF 2808 AC |
2018 |
13 |
286 |
42.8 |
8.06 |
11.07 |
3.01 |
|
|
| Show |
|
|
21 35 43 +31 00 48 |
HJ 939 CD |
2018 |
10 |
344 |
15.1 |
11.07 |
14.67 |
3.60 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2704-02679-1 |
|
Gaia DR2 |
1850579808732343168 |
|
