18541+3103 ES 2421
18h 54m 06.35s +31° 02' 31.1" P.A. 69.00 sep 7.7 mag 10.54,11.20 Sp F2
| Coord 2000 |
18541+3103 |
|
Discov num |
ES 2421 |
|
Comp |
|
|
Coord arcsec 2000 |
18 54 06.35 +31 02 31.1 |
|
| Date first |
1901 |
|
Date last |
2021 |
|
Obs |
12 |
|
| Pa first |
76 |
|
Pa last |
69 |
|
P.A. Now (θ) |
69° |
|
| Sep first |
7.9 |
|
Sep last |
7.66 |
|
Sep. Now (ρ) |
7.66" |
|
| Mag pri |
10.54 |
|
Mag sec |
11.20 |
|
delta mag (ΔM) |
0.66 |
|
Spectral class |
F2 (yellow-white) |
|
| Pri motion ra |
+007 |
|
Sec motion ra |
+012 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
+008 |
|
| Notes |
|
|
rPM=0.838
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lyra |
|
Tycho2 |
2639-00676-1 |
|
Gaia DR2 |
2042114876032060416 |
|
