18118-1825 HJ 2820 BC
18h 11m 46.39s -18° 22' 51.5" P.A. 87.00 sep 18.5 mag 11.83,13.05
| Coord 2000 |
18118-1825 |
|
Discov num |
HJ 2820 |
|
Comp |
BC |
|
Coord arcsec 2000 |
18 11 46.39 -18 22 51.5 |
|
| Date first |
1901 |
|
Date last |
2015 |
|
Obs |
10 |
|
| Pa first |
88 |
|
Pa last |
86.8 |
|
P.A. Now (θ) |
86.8° |
|
| Sep first |
18.5 |
|
Sep last |
18.546 |
|
Sep. Now (ρ) |
18.546" |
|
| Mag pri |
11.83 |
|
Mag sec |
13.05 |
|
delta mag (ΔM) |
1.22 |
|
Spectral class |
|
|
| Pri motion ra |
-005 |
|
Sec motion ra |
-001 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-002 |
|
| Notes |
N
(See Notes) |
|
rPM=0.707
Nature of this double is uncertain.
18118-1825 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 166524 |
|
18 11 47 -18 22 52 |
HJ 2820 AB |
2015 |
12 |
279 |
5.8 |
10.09 |
11.83 |
1.74 |
|
|
| Show |
|
|
18 11 47 -18 22 52 |
HJ 2820 AC |
2015 |
10 |
82 |
12.9 |
10.09 |
13.05 |
2.96 |
|
|
| Show |
|
|
18 11 46 -18 22 52 |
HJ 2820 BC |
2015 |
10 |
87 |
18.5 |
11.83 |
13.05 |
1.22 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagittarius |
|
Gaia DR2 |
4095595704399545600 |
|
