21157-2803 BRT 3099
21h 15m 11.89s -28° 02' 41.9" P.A. 298.00 sep 4.4 mag 11.99,12.77
Coord 2000 |
21157-2803 |
|
Discov num |
BRT3099 |
|
Comp |
|
|
Coord arcsec 2000 |
21 15 11.89 -28 02 41.9 |
|
Date first |
1913 |
|
Date last |
2015 |
|
Obs |
4 |
|
Pa first |
300 |
|
Pa last |
297.9 |
|
P.A. Now (θ) |
297.9° |
|
Sep first |
3.4 |
|
Sep last |
4.428 |
|
Sep. Now (ρ) |
4.428" |
|
Mag pri |
11.99 |
|
Mag sec |
12.77 |
|
delta mag (ΔM) |
0.78 |
|
Spectral class |
|
|
Pri motion ra |
+018 |
|
Sec motion ra |
|
|
Pri motion dec |
-003 |
|
Sec motion dec |
|
|
Notes |
B
(Blue magnitudes) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Microscopium |
|
Tycho2 |
6945-00642-1 |
|
Gaia DR2 |
6790380678371351552 |
|