18554+1331 BU 647 AC
18h 55m 26.45s +13° 31' 06.8" P.A. 218.00 sep 18.5 mag 9.95,10.27 Sp B9
| Coord 2000 |
18554+1331 |
|
Discov num |
BU 647 |
|
Comp |
AC |
|
Coord arcsec 2000 |
18 55 26.45 +13 31 06.8 |
|
| Date first |
1877 |
|
Date last |
2016 |
|
Obs |
27 |
|
| Pa first |
217 |
|
Pa last |
217.7 |
|
P.A. Now (θ) |
217.7° |
|
| Sep first |
20.0 |
|
Sep last |
18.546 |
|
Sep. Now (ρ) |
18.546" |
|
| Mag pri |
9.95 |
|
Mag sec |
10.27 |
|
delta mag (ΔM) |
0.32 |
|
Spectral class |
B9 (blue-white) |
|
| Pri motion ra |
+003 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
+001 |
|
| Notes |
N
(See Notes) |
|
rPM=1.135
This double is not physical.
18554+1331 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 230073 |
104260 |
18 55 26 +13 31 07 |
BU 647 AB |
2016 |
21 |
5 |
1.3 |
9.95 |
10.66 |
0.71 |
|
|
| Show |
|
104260 |
18 55 26 +13 31 07 |
BU 647 AC |
2016 |
27 |
218 |
18.5 |
9.95 |
10.27 |
0.32 |
|
<=== |
| Show |
|
104260 |
18 55 26 +13 31 07 |
FOX 9032 AD |
2015 |
4 |
86 |
37.5 |
9.95 |
13.75 |
3.80 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
SAO |
104260 |
|
Tycho2 |
1051-00204-1 |
|
Gaia DR2 |
4506293228998106496 |
|
| HD |
230073 |
|
