18538+1756 BPM 881
18h 53m 45.70s +17° 55' 43.6" P.A. 2.00 sep 55.4 mag 13.71,13.73
| Coord 2000 |
18538+1756 |
|
Discov num |
BPM 881 |
|
Comp |
|
|
Coord arcsec 2000 |
18 53 45.70 +17 55 43.6 |
|
| Date first |
1997 |
|
Date last |
2015 |
|
Obs |
5 |
|
| Pa first |
2 |
|
Pa last |
2.1 |
|
P.A. Now (θ) |
2.1° |
|
| Sep first |
55.4 |
|
Sep last |
55.406 |
|
Sep. Now (ρ) |
55.406" |
|
| Mag pri |
13.71 |
|
Mag sec |
13.73 |
|
delta mag (ΔM) |
0.02 |
|
Spectral class |
|
|
| Pri motion ra |
+013 |
|
Sec motion ra |
+035 |
|
| Pri motion dec |
+020 |
|
Sec motion dec |
+056 |
|
| Notes |
N
V
(See Notes, Proper motion indicates physical) |
|
rPM=0.639
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Gaia DR2 |
4517406852032612480 |
|
