18117-0023 TDT 732 (HD 166661)
18h 11m 41.75s -00° 22' 31.7" P.A. 47.00 sep 0.4 mag 10.63,10.75
| Coord 2000 |
18117-0023 |
|
Discov num |
TDT 732 |
|
Comp |
|
|
Coord arcsec 2000 |
18 11 41.75 -00 22 31.7 |
|
| Date first |
1991 |
|
Date last |
1991 |
|
Obs |
1 |
|
| Pa first |
47 |
|
Pa last |
47.2 |
|
P.A. Now (θ) |
47.2° |
|
| Sep first |
0.4 |
|
Sep last |
0.43 |
|
Sep. Now (ρ) |
0.43" |
|
| Mag pri |
10.63 |
|
Mag sec |
10.75 |
|
delta mag (ΔM) |
0.12 |
|
Spectral class |
|
|
| Pri motion ra |
-012 |
|
Sec motion ra |
-012 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
-006 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 166661 |
|
Constellation |
Serpens |
|
Tycho2 |
5097-00055-1 |
|
HD |
166661 |
|
