18338+1744 WAK 21 CD
18h 33m 45.62s +17° 43' 55.9" P.A. 263.00 sep 0.5 mag 9.30,9.56 Sp F6V
| Coord 2000 |
18338+1744 |
|
Discov num |
WAK 21 |
|
Comp |
CD |
|
Coord arcsec 2000 |
18 33 45.62 +17 43 55.9 |
|
| Date first |
1975 |
|
Date last |
2019 |
|
Obs |
28 |
|
| Pa first |
249 |
|
Pa last |
263.3 |
|
P.A. Now (θ) |
263.3° |
|
| Sep first |
0.2 |
|
Sep last |
0.492 |
|
Sep. Now (ρ) |
0.492" |
|
| Mag pri |
9.30 |
|
Mag sec |
9.56 |
|
delta mag (ΔM) |
0.26 |
|
Spectral class |
F6V (yellow-white) |
|
| Pri motion ra |
+010 |
|
Sec motion ra |
+010 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
-006 |
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
18338+1744 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
103853 |
18 33 46 +17 43 56 |
HU 322 AB |
2019 |
53 |
92 |
0.2 |
7.74 |
8.91 |
1.17 |
Y |
|
| Show |
HD 171365 |
103853 |
18 33 46 +17 43 56 |
STF 2339 AB,CD |
2018 |
115 |
277 |
1.7 |
7.45 |
8.67 |
1.22 |
|
|
| Show |
|
|
18 33 46 +17 43 56 |
WAK 21 CD |
2019 |
28 |
263 |
0.5 |
9.30 |
9.56 |
0.26 |
|
<=== |
Quadruple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Gaia DR2 |
4523973547779600384 |
|