17265-1735 HU 171 AB (HD 157859)
17h 26m 31.65s -17° 35' 13.7" P.A. 188.00 sep 1.7 mag 10.12,11.32 Sp A2V
| Coord 2000 |
17265-1735 |
|
Discov num |
HU 171 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 26 31.65 -17 35 13.7 |
|
| Date first |
1900 |
|
Date last |
1991 |
|
Obs |
5 |
|
| Pa first |
190 |
|
Pa last |
187.5 |
|
P.A. Now (θ) |
187.5° |
|
| Sep first |
1.7 |
|
Sep last |
1.657 |
|
Sep. Now (ρ) |
1.657" |
|
| Mag pri |
10.12 |
|
Mag sec |
11.32 |
|
delta mag (ΔM) |
1.2 |
|
Spectral class |
A2V (white) |
|
| Pri motion ra |
+002 |
|
Sec motion ra |
+002 |
|
| Pri motion dec |
+004 |
|
Sec motion dec |
+004 |
|
| Notes |
|
|
Nature of this double is uncertain.
17265-1735 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 157859 |
|
17 26 32 -17 35 14 |
HU 171 AB |
1991 |
5 |
188 |
1.7 |
10.12 |
11.32 |
1.20 |
|
<=== |
| Show |
|
|
17 26 32 -17 35 14 |
HU 171 AC |
2015 |
7 |
209 |
7.1 |
10.12 |
12.30 |
2.18 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 157859 |
|
Constellation |
Ophiuchus |
|
Tycho2 |
6238-02384-1 |
|
Gaia DR2 |
4122963137271901312 |
|
| HD |
157859 |
|
ADS |
10546 |
|
