21109+3830 ES 254
21h 10m 57.08s +38° 30' 33.4" P.A. 325.00 sep 2.2 mag 10.46,10.59 Sp A1IV
| Coord 2000 |
21109+3830 |
|
Discov num |
ES 254 |
|
Comp |
|
|
Coord arcsec 2000 |
21 10 57.08 +38 30 33.4 |
|
| Date first |
1905 |
|
Date last |
2012 |
|
Obs |
11 |
|
| Pa first |
330 |
|
Pa last |
325 |
|
P.A. Now (θ) |
325° |
|
| Sep first |
2.4 |
|
Sep last |
2.2 |
|
Sep. Now (ρ) |
2.2" |
|
| Mag pri |
10.46 |
|
Mag sec |
10.59 |
|
delta mag (ΔM) |
0.13 |
|
Spectral class |
A1IV (white) |
|
| Pri motion ra |
-001 |
|
Sec motion ra |
-001 |
|
| Pri motion dec |
-002 |
|
Sec motion dec |
-002 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3169-01864-1 |
|
Gaia DR2 |
1868991135249771136 |
|
