16405+4020 ES 1647
16h 40m 31.47s +40° 20' 41.8" P.A. 23.00 sep 3.1 mag 10.40,11.60
| Coord 2000 |
16405+4020 |
|
Discov num |
ES 1647 |
|
Comp |
|
|
Coord arcsec 2000 |
16 40 31.47 +40 20 41.8 |
|
| Date first |
1917 |
|
Date last |
2020 |
|
Obs |
13 |
|
| Pa first |
19 |
|
Pa last |
22.7 |
|
P.A. Now (θ) |
22.7° |
|
| Sep first |
3.3 |
|
Sep last |
3.12 |
|
Sep. Now (ρ) |
3.12" |
|
| Mag pri |
10.40 |
|
Mag sec |
11.60 |
|
delta mag (ΔM) |
1.2 |
|
Spectral class |
|
|
| Pri motion ra |
-022 |
|
Sec motion ra |
|
|
| Pri motion dec |
+010 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Tycho2 |
3074-00827-1 |
|
Gaia DR2 |
1355917262633314432 |
|
ADS |
10154 |
|
