18002-4258 WFC 204 (HD 163821)
18h 00m 13.12s -42° 58' 14.1" P.A. 291.00 sep 7.8 mag 9.67,10.58 Sp A1/2IV
| Coord 2000 |
18002-4258 |
|
Discov num |
WFC 204 |
|
Comp |
|
|
Coord arcsec 2000 |
18 00 13.12 -42 58 14.1 |
|
| Date first |
1901 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
298 |
|
Pa last |
290.9 |
|
P.A. Now (θ) |
290.9° |
|
| Sep first |
8.0 |
|
Sep last |
7.769 |
|
Sep. Now (ρ) |
7.769" |
|
| Mag pri |
9.67 |
|
Mag sec |
10.58 |
|
delta mag (ΔM) |
0.91 |
|
Spectral class |
A1/2IV (white) |
|
| Pri motion ra |
-003 |
|
Sec motion ra |
-003 |
|
| Pri motion dec |
-013 |
|
Sec motion dec |
-014 |
|
| Notes |
V
(Proper motion indicates physical) |
|
rPM=0.07 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 163821 |
|
Constellation |
Corona Austrina |
|
SAO |
228615 |
|
Tycho2 |
7907-02362-1 |
|
| Gaia DR2 |
6725070654087945856 |
|
HD |
163821 |
|
DM |
CP-42 8149 |
|
