21490+3912 TDT 3173
21h 48m 57.91s +39° 12' 22.4" P.A. 137.00 sep 0.6 mag 11.26,11.56
| Coord 2000 |
21490+3912 |
|
Discov num |
TDT3173 |
|
Comp |
|
|
Coord arcsec 2000 |
21 48 57.91 +39 12 22.4 |
|
| Date first |
1991 |
|
Date last |
1991 |
|
Obs |
1 |
|
| Pa first |
137 |
|
Pa last |
136.8 |
|
P.A. Now (θ) |
136.8° |
|
| Sep first |
0.6 |
|
Sep last |
0.64 |
|
Sep. Now (ρ) |
0.64" |
|
| Mag pri |
11.26 |
|
Mag sec |
11.56 |
|
delta mag (ΔM) |
0.3 |
|
Spectral class |
|
|
| Pri motion ra |
-004 |
|
Sec motion ra |
-004 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
-006 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3184-00541-1 |
|
Gaia DR2 |
1953370509413264000 |
|
