20506+5452 HJ 1587 AB
20h 50m 32.53s +54° 51' 57.4" P.A. 259.00 sep 10.4 mag 10.80,12.40
| Coord 2000 |
20506+5452 |
|
Discov num |
HJ 1587 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 50 32.53 +54 51 57.4 |
|
| Date first |
1828 |
|
Date last |
2015 |
|
Obs |
13 |
|
| Pa first |
289 |
|
Pa last |
258.8 |
|
P.A. Now (θ) |
258.8° |
|
| Sep first |
4.0 |
|
Sep last |
10.368 |
|
Sep. Now (ρ) |
10.368" |
|
| Mag pri |
10.80 |
|
Mag sec |
12.40 |
|
delta mag (ΔM) |
1.6 |
|
Spectral class |
|
|
| Pri motion ra |
+019 |
|
Sec motion ra |
-006 |
|
| Pri motion dec |
+021 |
|
Sec motion dec |
-004 |
|
| Notes |
|
|
rPM=1.248
This double is not physical.
20506+5452 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 50 33 +54 51 57 |
HJ 1587 AB |
2015 |
13 |
259 |
10.4 |
10.80 |
12.40 |
1.60 |
|
<=== |
| Show |
|
|
20 50 33 +54 51 57 |
DJU 5 AC |
2015 |
5 |
66 |
77.9 |
10.80 |
12.60 |
1.80 |
|
|
| Show |
|
|
20 50 41 +54 52 30 |
DJU 5 CD |
2009 |
5 |
173 |
4.0 |
12.60 |
13.30 |
0.70 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
2183051410351815552 |
|
