18552+1817 J 2931
18h 55m 17.75s +18° 16' 07.4" P.A. 143.00 sep 5.3 mag 13.20,11.80
Coord 2000 |
18552+1817 |
|
Discov num |
J 2931 |
|
Comp |
|
|
Coord arcsec 2000 |
18 55 17.75 +18 16 07.4 |
|
Date first |
1944 |
|
Date last |
2017 |
|
Obs |
8 |
|
Pa first |
105 |
|
Pa last |
143 |
|
P.A. Now (θ) |
143° |
|
Sep first |
3.0 |
|
Sep last |
5.257 |
|
Sep. Now (ρ) |
5.257" |
|
Mag pri |
13.20 |
|
Mag sec |
11.80 |
|
delta mag (ΔM) |
1.4 |
|
Spectral class |
|
|
Pri motion ra |
-036 |
|
Sec motion ra |
+007 |
|
Pri motion dec |
-020 |
|
Sec motion dec |
-066 |
|
Notes |
U
(Proper motion indicates non-physical) |
|
rPM=0.949
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Hercules |
|
Tycho2 |
1588-00094-1 |
|
Gaia DR2 |
4517443647010647296 |
|