20451-2346 I 666 (HD 197539)
20h 45m 03.37s -23° 45' 38.3" P.A. 149.00 sep 0.4 mag 8.90,9.10 Sp G3V
Coord 2000 |
20451-2346 |
|
Discov num |
I 666 |
|
Comp |
|
|
Coord arcsec 2000 |
20 45 03.37 -23 45 38.3 |
|
Date first |
1909 |
|
Date last |
2018 |
|
Obs |
17 |
|
Pa first |
340 |
|
Pa last |
149.1 |
|
P.A. Now (θ) |
149.1° |
|
Sep first |
0.7 |
|
Sep last |
0.448 |
|
Sep. Now (ρ) |
0.448" |
|
Mag pri |
8.90 |
|
Mag sec |
9.10 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
G3V (yellow) |
|
Pri motion ra |
+066 |
|
Sec motion ra |
|
|
Pri motion dec |
-089 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 197539 |
|
Constellation |
Capricornus |
|
SAO |
189640 |
|
Tycho2 |
6921-01308-1 |
|
Gaia DR2 |
6806928053492029952 |
|
HD |
197539 |
|