21257+3824 TDT 2955
21h 25m 39.50s +38° 24' 29.7" P.A. 18.00 sep 0.5 mag 11.60,11.71
Coord 2000 |
21257+3824 |
|
Discov num |
TDT2955 |
|
Comp |
|
|
Coord arcsec 2000 |
21 25 39.50 +38 24 29.7 |
|
Date first |
1991 |
|
Date last |
1991 |
|
Obs |
1 |
|
Pa first |
18 |
|
Pa last |
18.3 |
|
P.A. Now (θ) |
18.3° |
|
Sep first |
0.5 |
|
Sep last |
0.51 |
|
Sep. Now (ρ) |
0.51" |
|
Mag pri |
11.60 |
|
Mag sec |
11.71 |
|
delta mag (ΔM) |
0.11 |
|
Spectral class |
|
|
Pri motion ra |
-003 |
|
Sec motion ra |
-003 |
|
Pri motion dec |
-010 |
|
Sec motion dec |
-010 |
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3182-01445-1 |
|
Gaia DR2 |
1964442454070446080 |
|