18122-3921 BU 759 AB (HD 166370)
18h 12m 09.65s -39° 20' 39.7" P.A. 124.00 sep 2.0 mag 8.79,9.17 Sp B8/9V
| Coord 2000 |
18122-3921 |
|
Discov num |
BU 759 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 12 09.65 -39 20 39.7 |
|
| Date first |
1879 |
|
Date last |
2016 |
|
Obs |
14 |
|
| Pa first |
118 |
|
Pa last |
124.4 |
|
P.A. Now (θ) |
124.4° |
|
| Sep first |
1.2 |
|
Sep last |
2.02 |
|
Sep. Now (ρ) |
2.02" |
|
| Mag pri |
8.79 |
|
Mag sec |
9.17 |
|
delta mag (ΔM) |
0.38 |
|
Spectral class |
B8/9V (blue-white) |
|
| Pri motion ra |
-024 |
|
Sec motion ra |
-007 |
|
| Pri motion dec |
+004 |
|
Sec motion dec |
-004 |
|
| Notes |
|
|
rPM=0.772
Nature of this double is uncertain.
18122-3921 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 166370 |
209839 |
18 12 10 -39 20 40 |
BU 759 AB |
2016 |
14 |
124 |
2.0 |
8.79 |
9.17 |
0.38 |
|
<=== |
| Show |
|
209839 |
18 12 10 -39 20 40 |
HJ 5028 AC |
2016 |
21 |
148 |
14.9 |
8.79 |
9.42 |
0.63 |
|
|
| Show |
|
|
18 12 10 -39 20 40 |
HJ 5028 BC |
2015 |
15 |
151 |
13.0 |
9.17 |
9.42 |
0.25 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 166370 |
|
Constellation |
Corona Austrina |
|
SAO |
209839 |
|
Tycho2 |
7900-05649-1 |
|
| Gaia DR2 |
6726045641691326976 |
|
HD |
166370 |
|
