18153-1900 BU 284 AD
18h 15m 16.76s -18° 59' 33.9" P.A. 192.00 sep 57.8 mag 7.09,9.70 Sp B1Ib
Coord 2000 |
18153-1900 |
|
Discov num |
BU 284 |
|
Comp |
AD |
|
Coord arcsec 2000 |
18 15 16.76 -18 59 33.9 |
|
Date first |
1890 |
|
Date last |
2018 |
|
Obs |
13 |
|
Pa first |
192 |
|
Pa last |
191.6 |
|
P.A. Now (θ) |
191.6° |
|
Sep first |
57.3 |
|
Sep last |
57.846 |
|
Sep. Now (ρ) |
57.846" |
|
Mag pri |
7.09 |
|
Mag sec |
9.70 |
|
delta mag (ΔM) |
2.61 |
|
Spectral class |
B1Ib (blue-white) |
|
Pri motion ra |
-001 |
|
Sec motion ra |
-012 |
|
Pri motion dec |
-002 |
|
Sec motion dec |
-004 |
|
Notes |
|
|
rPM=0.884
This double is not physical.
18153-1900 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 167287 |
161217 |
18 15 17 -18 59 34 |
BU 284 AB |
2017 |
13 |
358 |
18.1 |
7.09 |
11.50 |
4.41 |
|
|
Show |
|
161217 |
18 15 17 -18 59 34 |
BU 284 AC |
2015 |
11 |
86 |
31.1 |
7.09 |
12.20 |
5.11 |
|
|
Show |
|
161217 |
18 15 17 -18 59 34 |
BU 284 AD |
2018 |
13 |
192 |
57.8 |
7.09 |
9.70 |
2.61 |
|
<=== |
Show |
|
161217 |
18 15 17 -18 59 34 |
BU 284 AE |
2017 |
13 |
188 |
75.3 |
7.09 |
10.34 |
3.25 |
|
|
Show |
|
161217 |
18 15 17 -18 59 34 |
BU 284 AF |
2015 |
8 |
267 |
138.7 |
7.09 |
9.50 |
2.41 |
|
|
Show |
|
161217 |
18 15 17 -18 59 34 |
BU 284 AG |
2017 |
12 |
200 |
12.4 |
7.09 |
11.00 |
3.91 |
|
|
Show |
|
161217 |
18 15 17 -18 59 34 |
BU 284 AH |
2017 |
12 |
67 |
21.0 |
7.09 |
10.70 |
3.61 |
|
|
Show |
|
161217 |
18 15 17 -18 59 34 |
BU 284 AS |
2015 |
5 |
103 |
19.1 |
7.09 |
13.00 |
5.91 |
|
|
Show |
|
|
18 15 17 -18 59 16 |
BU 284 BR |
2015 |
8 |
326 |
5.2 |
11.50 |
12.00 |
0.50 |
|
|
Show |
|
|
18 15 19 -18 59 32 |
ARA 743 CQ |
2015 |
7 |
298 |
13.1 |
12.20 |
12.70 |
0.50 |
|
|
11-fold system
11 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Sagittarius |
|
SAO |
161217 |
|
Tycho2 |
6272-00830-1 |
|
Gaia DR2 |
4094832952561701888 |
|
HD |
167287 |
|