18484+2544 A 255
18h 48m 21.20s +25° 44' 15.5" P.A. 69.00 sep 4.9 mag 9.23,12.90 Sp G5
| Coord 2000 |
18484+2544 |
|
Discov num |
A 255 |
|
Comp |
|
|
Coord arcsec 2000 |
18 48 21.20 +25 44 15.5 |
|
| Date first |
1897 |
|
Date last |
2017 |
|
Obs |
14 |
|
| Pa first |
57 |
|
Pa last |
69.3 |
|
P.A. Now (θ) |
69.3° |
|
| Sep first |
4.9 |
|
Sep last |
4.89 |
|
Sep. Now (ρ) |
4.89" |
|
| Mag pri |
9.23 |
|
Mag sec |
12.90 |
|
delta mag (ΔM) |
3.67 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
+011 |
|
Sec motion ra |
|
|
| Pri motion dec |
-033 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
SAO |
86454 |
|
Tycho2 |
2112-00776-1 |
|
Gaia DR2 |
4537534752395605376 |
|
| HD |
336937 |
|
