21139+4042 TDT 2840
21h 13m 56.11s +40° 42' 10.6" P.A. 235.00 sep 0.7 mag 11.69,11.84
| Coord 2000 |
21139+4042 |
|
Discov num |
TDT2840 |
|
Comp |
|
|
Coord arcsec 2000 |
21 13 56.11 +40 42 10.6 |
|
| Date first |
1991 |
|
Date last |
1991 |
|
Obs |
1 |
|
| Pa first |
235 |
|
Pa last |
235.4 |
|
P.A. Now (θ) |
235.4° |
|
| Sep first |
0.7 |
|
Sep last |
0.68 |
|
Sep. Now (ρ) |
0.68" |
|
| Mag pri |
11.69 |
|
Mag sec |
11.84 |
|
delta mag (ΔM) |
0.15 |
|
Spectral class |
|
|
| Pri motion ra |
+034 |
|
Sec motion ra |
+034 |
|
| Pri motion dec |
+017 |
|
Sec motion dec |
+017 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3173-01911-1 |
|
Gaia DR2 |
1968346849915968256 |
|
