20388+5447 STI 2550
20h 38m 45.58s +54° 47' 54.8" P.A. 183.00 sep 12.4 mag 11.38,13.20
Coord 2000 |
20388+5447 |
|
Discov num |
STI2550 |
|
Comp |
|
|
Coord arcsec 2000 |
20 38 45.58 +54 47 54.8 |
|
Date first |
1905 |
|
Date last |
2015 |
|
Obs |
9 |
|
Pa first |
183 |
|
Pa last |
182.8 |
|
P.A. Now (θ) |
182.8° |
|
Sep first |
11.9 |
|
Sep last |
12.38 |
|
Sep. Now (ρ) |
12.38" |
|
Mag pri |
11.38 |
|
Mag sec |
13.20 |
|
delta mag (ΔM) |
1.82 |
|
Spectral class |
|
|
Pri motion ra |
-004 |
|
Sec motion ra |
-005 |
|
Pri motion dec |
-006 |
|
Sec motion dec |
-009 |
|
Notes |
|
|
rPM=0.307
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3954-01056-1 |
|
Gaia DR2 |
2183578694900392448 |
|