19593+4546 HDS 2846 AB (HD 189684)
19h 59m 20.42s +45° 46' 21.3" P.A. 236.00 sep 0.8 mag 6.08,8.74 Sp A5III dist. 138.89 pc (453.06 l.y.)
Coord 2000 |
19593+4546 |
|
Discov num |
HDS2846 |
|
Comp |
AB |
|
Coord arcsec 2000 |
19 59 20.42 +45 46 21.3 |
|
Date first |
1991 |
|
Date last |
2014 |
|
Obs |
7 |
|
Pa first |
207 |
|
Pa last |
235.5 |
|
P.A. Now (θ) |
235.5° |
|
Sep first |
0.3 |
|
Sep last |
0.779 |
|
Sep. Now (ρ) |
0.779" |
|
Mag pri |
6.08 |
|
Mag sec |
8.74 |
|
delta mag (ΔM) |
2.66 |
|
Spectral class |
A5III (white) |
|
Pri motion ra |
+012 |
|
Sec motion ra |
|
|
Pri motion dec |
-017 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
19593+4546 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
49058 |
19 59 20 +45 46 21 |
GII 287 Aa,Ab |
2014 |
1 |
119 |
0.1 |
6.80 |
6.80 |
0.00 |
|
|
Show |
HD 189684 |
49058 |
19 59 20 +45 46 21 |
HDS 2846 AB |
2014 |
7 |
236 |
0.8 |
6.08 |
8.74 |
2.66 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 189684 |
|
Constellation |
Cygnus |
|
SAO |
49058 |
|
HIP |
98383 |
|
Tycho2 |
3558-02565-1 |
|
HD |
189684 |
|
HR |
7646 |
|
GC |
27709 |
|
BD |
BD+45 3025 |
|
Distance |
138.89 |
|
Distance ly |
453.06 |
|