18254-1631 HU 64 AB (HD 169457)
18h 25m 22.92s -16° 30' 31.9" P.A. 12.00 sep 3.7 mag 9.80,10.80 Sp K0III
Coord 2000 |
18254-1631 |
|
Discov num |
HU 64 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 25 22.92 -16 30 31.9 |
|
Date first |
1899 |
|
Date last |
2000 |
|
Obs |
12 |
|
Pa first |
12 |
|
Pa last |
12.4 |
|
P.A. Now (θ) |
12.4° |
|
Sep first |
4.0 |
|
Sep last |
3.67 |
|
Sep. Now (ρ) |
3.67" |
|
Mag pri |
9.80 |
|
Mag sec |
10.80 |
|
delta mag (ΔM) |
1 |
|
Spectral class |
K0III (yellow-orange) |
|
Pri motion ra |
+015 |
|
Sec motion ra |
+036 |
|
Pri motion dec |
-011 |
|
Sec motion dec |
+040 |
|
Notes |
N
(See Notes) |
|
rPM=1.025
This double is not physical.
18254-1631 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 169457 |
|
18 25 23 -16 30 32 |
HU 64 AB |
2000 |
12 |
12 |
3.7 |
9.80 |
10.80 |
1.00 |
|
<=== |
Show |
|
|
18 25 23 -16 30 32 |
HU 64 AC |
2015 |
6 |
18 |
15.6 |
9.80 |
12.30 |
2.50 |
|
|
Show |
|
|
18 25 23 -16 30 32 |
HU 64 AD |
2015 |
4 |
349 |
24.7 |
9.80 |
12.80 |
3.00 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 169457 |
|
Constellation |
Sagittarius |
|
Tycho2 |
6266-02751-1 |
|
Gaia DR2 |
4097002327710880128 |
|
HD |
169457 |
|