21030+2155 BRT 2488
21h 02m 58.11s +21° 54' 25.7" P.A. 118.00 sep 2.8 mag 11.30,11.50
| Coord 2000 |
21030+2155 |
|
Discov num |
BRT2488 |
|
Comp |
|
|
Coord arcsec 2000 |
21 02 58.11 +21 54 25.7 |
|
| Date first |
1892 |
|
Date last |
2015 |
|
Obs |
6 |
|
| Pa first |
118 |
|
Pa last |
118.3 |
|
P.A. Now (θ) |
118.3° |
|
| Sep first |
2.4 |
|
Sep last |
2.767 |
|
Sep. Now (ρ) |
2.767" |
|
| Mag pri |
11.30 |
|
Mag sec |
11.50 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
|
|
| Pri motion ra |
-004 |
|
Sec motion ra |
|
|
| Pri motion dec |
-013 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Vulpecula |
|
Tycho2 |
1660-00371-1 |
|
Gaia DR2 |
1838346234342193280 |
|
