20570+1758 COU 427
20h 56m 59.19s +17° 57' 30.3" P.A. 221.00 sep 1.5 mag 10.42,12.60 Sp G5
| Coord 2000 |
20570+1758 |
|
Discov num |
COU 427 |
|
Comp |
|
|
Coord arcsec 2000 |
20 56 59.19 +17 57 30.3 |
|
| Date first |
1969 |
|
Date last |
2016 |
|
Obs |
5 |
|
| Pa first |
217 |
|
Pa last |
221.3 |
|
P.A. Now (θ) |
221.3° |
|
| Sep first |
1.5 |
|
Sep last |
1.498 |
|
Sep. Now (ρ) |
1.498" |
|
| Mag pri |
10.42 |
|
Mag sec |
12.60 |
|
delta mag (ΔM) |
2.18 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
-034 |
|
Sec motion ra |
|
|
| Pri motion dec |
-056 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Delphinus |
|
Tycho2 |
1652-00008-1 |
|
Gaia DR2 |
1765157139757774208 |
|
HD |
353286 |
|
