18112-1642 RST 4000 (HD 166418)
18h 11m 13.23s -16° 42' 14.1" P.A. 292.00 sep 0.5 mag 8.54,10.19 Sp B0Ia/ab dist. 800 pc (2609.6 l.y.)
| Coord 2000 |
18112-1642 |
|
Discov num |
RST4000 |
|
Comp |
|
|
Coord arcsec 2000 |
18 11 13.23 -16 42 14.1 |
|
| Date first |
1937 |
|
Date last |
1991 |
|
Obs |
5 |
|
| Pa first |
288 |
|
Pa last |
292.4 |
|
P.A. Now (θ) |
292.4° |
|
| Sep first |
0.6 |
|
Sep last |
0.54 |
|
Sep. Now (ρ) |
0.54" |
|
| Mag pri |
8.54 |
|
Mag sec |
10.19 |
|
delta mag (ΔM) |
1.65 |
|
Spectral class |
B0Ia/ab (blue-white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
+001 |
|
| Pri motion dec |
+001 |
|
Sec motion dec |
+001 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 166418 |
|
Constellation |
Sagittarius |
|
SAO |
161155 |
|
HIP |
89111 |
|
| Tycho2 |
6264-00701-1 |
|
Gaia DR2 |
4145571772051266304 |
|
HD |
166418 |
|
BD |
BD-16 4744 |
|
| Distance |
800 |
|
Distance ly |
2609.6 |
|
