18125-1522 LV 7 AB (HD 166716)
18h 12m 28.50s -15° 22' 23.7" P.A. 272.00 sep 3.4 mag 8.15,11.14 Sp B1/2II dist. 854.7 pc (2788.03 l.y.)
| Coord 2000 |
18125-1522 |
|
Discov num |
LV 7 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 12 28.50 -15 22 23.7 |
|
| Date first |
1892 |
|
Date last |
1999 |
|
Obs |
13 |
|
| Pa first |
278 |
|
Pa last |
272.2 |
|
P.A. Now (θ) |
272.2° |
|
| Sep first |
3.8 |
|
Sep last |
3.39 |
|
Sep. Now (ρ) |
3.39" |
|
| Mag pri |
8.15 |
|
Mag sec |
11.14 |
|
delta mag (ΔM) |
2.99 |
|
Spectral class |
B1/2II (blue-white) |
|
| Pri motion ra |
+008 |
|
Sec motion ra |
-002 |
|
| Pri motion dec |
-005 |
|
Sec motion dec |
-001 |
|
| Notes |
|
|
rPM=1.142
This double is not physical.
18125-1522 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 166716 |
161181 |
18 12 28 -15 22 24 |
LV 7 AB |
1999 |
13 |
272 |
3.4 |
8.15 |
11.14 |
2.99 |
|
<=== |
| Show |
|
161181 |
18 12 28 -15 22 24 |
LV 7 AC |
2017 |
11 |
240 |
33.7 |
8.15 |
10.81 |
2.66 |
|
|
| Show |
|
161181 |
18 12 28 -15 22 24 |
AOT 71 AB,D |
2000 |
4 |
153 |
18.8 |
8.15 |
14.20 |
6.05 |
|
|
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 166716 |
|
Constellation |
Serpens |
|
SAO |
161181 |
|
HIP |
89223 |
|
| Tycho2 |
6264-00483-1 |
|
Gaia DR2 |
4145997734070527744 |
|
HD |
166716 |
|
BD |
BD-15 4864 |
|
| Distance |
854.7 |
|
Distance ly |
2788.03 |
|
