21431+4021 TDT 3121
21h 43m 04.10s +40° 20' 45.3" P.A. 157.00 sep 1.7 mag 11.85,12.36
| Coord 2000 |
21431+4021 |
|
Discov num |
TDT3121 |
|
Comp |
|
|
Coord arcsec 2000 |
21 43 04.10 +40 20 45.3 |
|
| Date first |
1991 |
|
Date last |
2016 |
|
Obs |
3 |
|
| Pa first |
157 |
|
Pa last |
156.6 |
|
P.A. Now (θ) |
156.6° |
|
| Sep first |
1.9 |
|
Sep last |
1.675 |
|
Sep. Now (ρ) |
1.675" |
|
| Mag pri |
11.85 |
|
Mag sec |
12.36 |
|
delta mag (ΔM) |
0.51 |
|
Spectral class |
|
|
| Pri motion ra |
-014 |
|
Sec motion ra |
-014 |
|
| Pri motion dec |
+003 |
|
Sec motion dec |
+003 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3188-01558-1 |
|
Gaia DR2 |
1954341103300482944 |
|
