18039-2419 SNA 79 (HD 164816)
18h 03m 56.84s -24° 18' 45.1" P.A. 81.00 sep 0.1 mag 7.10,10.50 Sp O4V((f))
| Coord 2000 |
18039-2419 |
|
Discov num |
SNA 79 |
|
Comp |
|
|
Coord arcsec 2000 |
18 03 56.84 -24 18 45.1 |
|
| Date first |
2012 |
|
Date last |
2013 |
|
Obs |
2 |
|
| Pa first |
87 |
|
Pa last |
81 |
|
P.A. Now (θ) |
81° |
|
| Sep first |
0.1 |
|
Sep last |
0.057 |
|
Sep. Now (ρ) |
0.057" |
|
| Mag pri |
7.10 |
|
Mag sec |
10.50 |
|
delta mag (ΔM) |
3.4 |
|
Spectral class |
O4V((f)) (blue) |
|
| Pri motion ra |
-000 |
|
Sec motion ra |
|
|
| Pri motion dec |
-002 |
|
Sec motion dec |
|
|
| Notes |
N
V
K
(See Notes, Proper motion indicates physical, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 164816 |
|
Constellation |
Sagittarius |
|
SAO |
186207 |
|
Tycho2 |
6842-01472-1 |
|
| Gaia DR2 |
4066023415781257984 |
|
HD |
164816 |
|
GC |
24577 |
|