18367-1357 LEO 20 AB (HD 171688)
18h 36m 42.25s -13° 56' 51.2" P.A. 255.00 sep 4.1 mag 10.36,11.10 Sp F0IIIm:
| Coord 2000 |
18367-1357 |
|
Discov num |
LEO 20 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 36 42.25 -13 56 51.2 |
|
| Date first |
1917 |
|
Date last |
2018 |
|
Obs |
7 |
|
| Pa first |
258 |
|
Pa last |
254.7 |
|
P.A. Now (θ) |
254.7° |
|
| Sep first |
4.0 |
|
Sep last |
4.093 |
|
Sep. Now (ρ) |
4.093" |
|
| Mag pri |
10.36 |
|
Mag sec |
11.10 |
|
delta mag (ΔM) |
0.74 |
|
Spectral class |
F0IIIm: (yellow-white) |
|
| Pri motion ra |
+043 |
|
Sec motion ra |
|
|
| Pri motion dec |
+001 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
18367-1357 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 171688 |
|
18 36 42 -13 56 51 |
LEO 20 AB |
2018 |
7 |
255 |
4.1 |
10.36 |
11.10 |
0.74 |
|
<=== |
| Show |
|
|
18 36 42 -13 56 51 |
LEO 20 AC |
2018 |
11 |
120 |
24.4 |
10.36 |
11.25 |
0.89 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 171688 |
|
Constellation |
Scutum |
|
Tycho2 |
5703-03832-1 |
|
Gaia DR2 |
4103762881163968896 |
|
| HD |
171688 |
|
