20490+4525 SMA 120
20h 48m 59.78s +45° 25' 04.4" P.A. 313.00 sep 4.3 mag 12.20,13.20
| Coord 2000 |
20490+4525 |
|
Discov num |
SMA 120 |
|
Comp |
|
|
Coord arcsec 2000 |
20 48 59.78 +45 25 04.4 |
|
| Date first |
1921 |
|
Date last |
2015 |
|
Obs |
5 |
|
| Pa first |
314 |
|
Pa last |
312.6 |
|
P.A. Now (θ) |
312.6° |
|
| Sep first |
3.6 |
|
Sep last |
4.259 |
|
Sep. Now (ρ) |
4.259" |
|
| Mag pri |
12.20 |
|
Mag sec |
13.20 |
|
delta mag (ΔM) |
1 |
|
Spectral class |
|
|
| Pri motion ra |
+010 |
|
Sec motion ra |
-028 |
|
| Pri motion dec |
-004 |
|
Sec motion dec |
+015 |
|
| Notes |
|
|
rPM=1.337
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
2166244138178007808 |
|
