20017-0012 H 1 93 AB (HD 189759)
20h 01m 39.17s -00° 11' 56.5" P.A. 297.00 sep 1.8 mag 7.67,8.39 Sp A0 dist. 165.84 pc (540.97 l.y.)
Coord 2000 |
20017-0012 |
|
Discov num |
H 1 93 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 01 39.17 -00 11 56.5 |
|
Date first |
1876 |
|
Date last |
2016 |
|
Obs |
53 |
|
Pa first |
294 |
|
Pa last |
297.3 |
|
P.A. Now (θ) |
297.3° |
|
Sep first |
2.1 |
|
Sep last |
1.819 |
|
Sep. Now (ρ) |
1.819" |
|
Mag pri |
7.67 |
|
Mag sec |
8.39 |
|
delta mag (ΔM) |
0.72 |
|
Spectral class |
A0 (white) |
|
Pri motion ra |
+006 |
|
Sec motion ra |
+006 |
|
Pri motion dec |
-004 |
|
Sec motion dec |
-004 |
|
Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
20017-0012 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 189759 |
144002 |
20 01 39 -00 11 56 |
H 1 93 AB |
2016 |
53 |
297 |
1.8 |
7.67 |
8.39 |
0.72 |
|
<=== |
Show |
|
144002 |
20 01 39 -00 11 56 |
H 1 93 AC |
2015 |
5 |
0 |
27.4 |
7.67 |
13.20 |
5.53 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 189759 |
|
Constellation |
Aquila |
|
SAO |
144002 |
|
HIP |
98600 |
|
Tycho2 |
5160-02304-1 |
|
HD |
189759 |
|
GC |
27757 |
|
BD |
BD-00 3899 |
|
Distance |
165.84 |
|
Distance ly |
540.97 |
|