21185+4747 HJ 1635 AD
21h 18m 31.94s +47° 47' 11.0" P.A. 241.00 sep 17.5 mag 10.24,14.80
| Coord 2000 |
21185+4747 |
|
Discov num |
HJ 1635 |
|
Comp |
AD |
|
Coord arcsec 2000 |
21 18 31.94 +47 47 11.0 |
|
| Date first |
1912 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
240 |
|
Pa last |
240.8 |
|
P.A. Now (θ) |
240.8° |
|
| Sep first |
18.6 |
|
Sep last |
17.494 |
|
Sep. Now (ρ) |
17.494" |
|
| Mag pri |
10.24 |
|
Mag sec |
14.80 |
|
delta mag (ΔM) |
4.56 |
|
Spectral class |
|
|
| Pri motion ra |
-005 |
|
Sec motion ra |
|
|
| Pri motion dec |
-005 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
21185+4747 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 18 32 +47 47 11 |
HJ 1635 AB |
2015 |
10 |
344 |
17.0 |
10.24 |
12.78 |
2.54 |
|
|
| Show |
|
|
21 18 32 +47 47 11 |
HJ 1635 AC |
2015 |
9 |
82 |
19.2 |
10.24 |
14.77 |
4.53 |
|
|
| Show |
|
|
21 18 32 +47 47 11 |
HJ 1635 AD |
2015 |
9 |
241 |
17.5 |
10.24 |
14.80 |
4.56 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3593-04167-1 |
|
Gaia DR2 |
2164669534442093184 |
|
DM |
BD+47 3363 |
|
