18091+3101 BKO 51 BC
18h 09m 02.98s +31° 02' 06.1" P.A. 207.00 sep 19.0 mag 11.08,13.20
Coord 2000 |
18091+3101 |
|
Discov num |
BKO 51 |
|
Comp |
BC |
|
Coord arcsec 2000 |
18 09 02.98 +31 02 06.1 |
|
Date first |
1998 |
|
Date last |
2015 |
|
Obs |
8 |
|
Pa first |
206 |
|
Pa last |
206.8 |
|
P.A. Now (θ) |
206.8° |
|
Sep first |
19.2 |
|
Sep last |
19.01 |
|
Sep. Now (ρ) |
19.01" |
|
Mag pri |
11.08 |
|
Mag sec |
13.20 |
|
delta mag (ΔM) |
2.12 |
|
Spectral class |
|
|
Pri motion ra |
+014 |
|
Sec motion ra |
+000 |
|
Pri motion dec |
-009 |
|
Sec motion dec |
+011 |
|
Notes |
N
(See Notes) |
|
rPM=1.467
This double is not physical.
18091+3101 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
T Her |
66680 |
18 09 06 +31 01 16 |
BLL 31 AB |
2015 |
19 |
320 |
64.5 |
10.04 |
11.08 |
1.04 |
|
|
Show |
|
|
18 09 03 +31 02 06 |
BKO 51 BC |
2015 |
8 |
207 |
19.0 |
11.08 |
13.20 |
2.12 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Hercules |
|
Tycho2 |
2622-01164-1 |
|
Gaia DR2 |
4591152226463490176 |
|
DM |
BD+31 3185 |
|