18257+2639 COU 815 (HD 169887)
18h 25m 44.22s +26° 39' 25.0" P.A. 144.00 sep 1.6 mag 9.01,11.30 Sp Ap
Coord 2000 |
18257+2639 |
|
Discov num |
COU 815 |
|
Comp |
|
|
Coord arcsec 2000 |
18 25 44.22 +26 39 25.0 |
|
Date first |
1972 |
|
Date last |
2015 |
|
Obs |
10 |
|
Pa first |
143 |
|
Pa last |
144.4 |
|
P.A. Now (θ) |
144.4° |
|
Sep first |
1.2 |
|
Sep last |
1.551 |
|
Sep. Now (ρ) |
1.551" |
|
Mag pri |
9.01 |
|
Mag sec |
11.30 |
|
delta mag (ΔM) |
2.29 |
|
Spectral class |
Ap (white) |
|
Pri motion ra |
-005 |
|
Sec motion ra |
|
|
Pri motion dec |
-007 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 169887 |
|
Constellation |
Hercules |
|
SAO |
86035 |
|
Tycho2 |
2114-02099-1 |
|
Gaia DR2 |
4585321619381737344 |
|
HD |
169887 |
|