20178+3956 HJ 2951 AB (HD 193247)
20h 17m 49.63s +39° 55' 33.9" P.A. 125.00 sep 10.8 mag 8.80,9.54 Sp A2V
| Coord 2000 |
20178+3956 |
|
Discov num |
HJ 2951 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 17 49.63 +39 55 33.9 |
|
| Date first |
1831 |
|
Date last |
2015 |
|
Obs |
32 |
|
| Pa first |
126 |
|
Pa last |
125.1 |
|
P.A. Now (θ) |
125.1° |
|
| Sep first |
12.0 |
|
Sep last |
10.775 |
|
Sep. Now (ρ) |
10.775" |
|
| Mag pri |
8.80 |
|
Mag sec |
9.54 |
|
delta mag (ΔM) |
0.74 |
|
Spectral class |
A2V (white) |
|
| Pri motion ra |
-009 |
|
Sec motion ra |
-009 |
|
| Pri motion dec |
-010 |
|
Sec motion dec |
-012 |
|
| Notes |
N
(See Notes) |
|
rPM=0.133 (< 0.3, Physical double)
This double is physical.
20178+3956 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 193247 |
69777 |
20 17 50 +39 55 34 |
HJ 2951 AB |
2015 |
32 |
125 |
10.8 |
8.80 |
9.54 |
0.74 |
|
<=== |
| Show |
|
69777 |
20 17 50 +39 55 34 |
FOX 9014 AC |
2015 |
8 |
61 |
24.4 |
8.80 |
13.50 |
4.70 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 193247 |
|
Constellation |
Cygnus |
|
SAO |
69777 |
|
Tycho2 |
3155-01860-1 |
|
| Gaia DR2 |
2062253324850585472 |
|
HD |
193247 |
|
