20251-4518 DON 985 (HD 193998)
20h 25m 03.82s -45° 18' 16.6" P.A. 341.00 sep 1.8 mag 10.52,10.78 Sp F3V
| Coord 2000 |
20251-4518 |
|
Discov num |
DON 985 |
|
Comp |
|
|
Coord arcsec 2000 |
20 25 03.82 -45 18 16.6 |
|
| Date first |
1929 |
|
Date last |
2016 |
|
Obs |
4 |
|
| Pa first |
340 |
|
Pa last |
340.9 |
|
P.A. Now (θ) |
340.9° |
|
| Sep first |
1.4 |
|
Sep last |
1.791 |
|
Sep. Now (ρ) |
1.791" |
|
| Mag pri |
10.52 |
|
Mag sec |
10.78 |
|
delta mag (ΔM) |
0.26 |
|
Spectral class |
F3V (yellow-white) |
|
| Pri motion ra |
+025 |
|
Sec motion ra |
+025 |
|
| Pri motion dec |
-011 |
|
Sec motion dec |
-011 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 193998 |
|
Constellation |
Telescopium |
|
SAO |
230192 |
|
Tycho2 |
8405-01252-1 |
|
| Gaia DR2 |
6675813598276945664 |
|
HD |
193998 |
|
DM |
CP-45 9930 |
|