16554+1826 BU 954 AB (54 Her)
16h 55m 22.24s +18° 25' 59.5" P.A. 183.00 sep 2.4 mag 5.40,9.60 Sp K4III-IV dist. 120.05 pc (391.6 l.y.)
| Coord 2000 |
16554+1826 |
|
Discov num |
BU 954 |
|
Comp |
AB |
|
Coord arcsec 2000 |
16 55 22.24 +18 25 59.5 |
|
| Date first |
1879 |
|
Date last |
2016 |
|
Obs |
18 |
|
| Pa first |
175 |
|
Pa last |
183.1 |
|
P.A. Now (θ) |
183.1° |
|
| Sep first |
2.6 |
|
Sep last |
2.412 |
|
Sep. Now (ρ) |
2.412" |
|
| Mag pri |
5.40 |
|
Mag sec |
9.60 |
|
delta mag (ΔM) |
4.2 |
|
Spectral class |
K4III-IV (yellow-orange) |
|
| Pri motion ra |
-111 |
|
Sec motion ra |
|
|
| Pri motion dec |
+010 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
16554+1826 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
54 Her |
102476 |
16 55 22 +18 25 60 |
BU 954 AB |
2016 |
18 |
183 |
2.4 |
5.40 |
9.60 |
4.20 |
|
<=== |
| Show |
|
102476 |
16 55 22 +18 25 60 |
FOX 196 AC |
2015 |
5 |
318 |
88.4 |
5.52 |
12.50 |
6.98 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
54 Her |
|
Constellation |
Hercules |
|
SAO |
102476 |
|
HIP |
82802 |
|
| Tycho2 |
1525-01264-1 |
|
Gaia DR2 |
4559585385067320960 |
|
HD |
152879 |
|
HR |
6293 |
|
| GC |
22816 |
|
ADS |
10262 |
|
BD |
BD+18 3266 |
|
Flamsteed |
54 Herculis |
|
| Flamsteed name |
54 Her |
|
Distance |
120.05 |
|
Distance ly |
391.6 |
|