18139+2851 COU 637
18h 13m 54.59s +28° 52' 16.9" P.A. 302.00 sep 3.1 mag 10.93,11.10
| Coord 2000 |
18139+2851 |
|
Discov num |
COU 637 |
|
Comp |
|
|
Coord arcsec 2000 |
18 13 54.59 +28 52 16.9 |
|
| Date first |
1971 |
|
Date last |
1996 |
|
Obs |
2 |
|
| Pa first |
306 |
|
Pa last |
301.7 |
|
P.A. Now (θ) |
301.7° |
|
| Sep first |
2.8 |
|
Sep last |
3.11 |
|
Sep. Now (ρ) |
3.11" |
|
| Mag pri |
10.93 |
|
Mag sec |
11.10 |
|
delta mag (ΔM) |
0.17 |
|
Spectral class |
|
|
| Pri motion ra |
-003 |
|
Sec motion ra |
|
|
| Pri motion dec |
-018 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Tycho2 |
2104-02082-1 |
|
Gaia DR2 |
4589422114855785600 |
|
