18217+2356 COU 418 (HD 169030)
18h 21m 44.75s +23° 55' 49.9" P.A. 277.00 sep 0.1 mag 9.63,9.89 Sp F8 dist. 740.74 pc (2416.29 l.y.)
| Coord 2000 |
18217+2356 |
|
Discov num |
COU 418 |
|
Comp |
|
|
Coord arcsec 2000 |
18 21 44.75 +23 55 49.9 |
|
| Date first |
1969 |
|
Date last |
2014 |
|
Obs |
17 |
|
| Pa first |
234 |
|
Pa last |
276.5 |
|
P.A. Now (θ) |
276.5° |
|
| Sep first |
0.2 |
|
Sep last |
0.145 |
|
Sep. Now (ρ) |
0.145" |
|
| Mag pri |
9.63 |
|
Mag sec |
9.89 |
|
delta mag (ΔM) |
0.26 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
|
|
| Pri motion dec |
+012 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 169030 |
|
Constellation |
Hercules |
|
SAO |
85968 |
|
HIP |
89994 |
|
| Tycho2 |
2093-01299-1 |
|
Gaia DR2 |
4530561615292370176 |
|
HD |
169030 |
|
BD |
BD+23 3312 |
|
| Distance |
740.74 |
|
Distance ly |
2416.29 |
|