18461+1655 HEI 259 (HD 229431)
18h 46m 08.41s +16° 54' 42.4" P.A. 248.00 sep 1.9 mag 10.00,10.40 Sp A7
Coord 2000 |
18461+1655 |
|
Discov num |
HEI 259 |
|
Comp |
|
|
Coord arcsec 2000 |
18 46 08.41 +16 54 42.4 |
|
Date first |
1983 |
|
Date last |
2012 |
|
Obs |
6 |
|
Pa first |
249 |
|
Pa last |
247.5 |
|
P.A. Now (θ) |
247.5° |
|
Sep first |
2.0 |
|
Sep last |
1.885 |
|
Sep. Now (ρ) |
1.885" |
|
Mag pri |
10.00 |
|
Mag sec |
10.40 |
|
delta mag (ΔM) |
0.4 |
|
Spectral class |
A7 (white) |
|
Pri motion ra |
+021 |
|
Sec motion ra |
|
|
Pri motion dec |
+005 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 229431 |
|
Constellation |
Hercules |
|
Tycho2 |
1587-00147-1 |
|
Gaia DR2 |
4511289753437582592 |
|
HD |
229431 |
|