18200+2120 AG 221 AC
18h 20m 02.24s +21° 20' 00.7" P.A. 9.00 sep 9.7 mag 9.90,12.90 Sp F8
| Coord 2000 |
18200+2120 |
|
Discov num |
AG 221 |
|
Comp |
AC |
|
Coord arcsec 2000 |
18 20 02.24 +21 20 00.7 |
|
| Date first |
1904 |
|
Date last |
2015 |
|
Obs |
5 |
|
| Pa first |
10 |
|
Pa last |
9.4 |
|
P.A. Now (θ) |
9.4° |
|
| Sep first |
13.2 |
|
Sep last |
9.656 |
|
Sep. Now (ρ) |
9.656" |
|
| Mag pri |
9.90 |
|
Mag sec |
12.90 |
|
delta mag (ΔM) |
3 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
+002 |
|
Sec motion ra |
|
|
| Pri motion dec |
+033 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
18200+2120 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 342090 |
|
18 20 02 +21 20 01 |
AG 221 AB |
2016 |
38 |
12 |
1.8 |
9.90 |
9.87 |
0.03 |
|
|
| Show |
|
|
18 20 02 +21 20 01 |
AG 221 AC |
2015 |
5 |
9 |
9.7 |
9.90 |
12.90 |
3.00 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Tycho2 |
1580-01378-1 |
|
Gaia DR2 |
4528884104149992448 |
|
