18122+0814 HDS 2568 AB (HD 166844)
18h 12m 10.31s +08° 13' 37.8" P.A. 263.00 sep 0.6 mag 7.39,10.62 Sp K0 dist. 157.48 pc (513.7 l.y.)
Coord 2000 |
18122+0814 |
|
Discov num |
HDS2568 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 12 10.31 +08 13 37.8 |
|
Date first |
1991 |
|
Date last |
2013 |
|
Obs |
5 |
|
Pa first |
264 |
|
Pa last |
263 |
|
P.A. Now (θ) |
263° |
|
Sep first |
0.5 |
|
Sep last |
0.608 |
|
Sep. Now (ρ) |
0.608" |
|
Mag pri |
7.39 |
|
Mag sec |
10.62 |
|
delta mag (ΔM) |
3.23 |
|
Spectral class |
K0 (yellow-orange) |
|
Pri motion ra |
-016 |
|
Sec motion ra |
|
|
Pri motion dec |
-051 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
18122+0814 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
123239 |
18 12 10 +08 13 38 |
GII 261 Aa,Ab |
2013 |
1 |
39 |
0.2 |
8.10 |
8.10 |
0.00 |
|
|
Show |
HD 166844 |
123239 |
18 12 10 +08 13 38 |
HDS 2568 AB |
2013 |
5 |
263 |
0.6 |
7.39 |
10.62 |
3.23 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 166844 |
|
Constellation |
Ophiuchus |
|
SAO |
123239 |
|
HIP |
89195 |
|
Tycho2 |
1009-01829-1 |
|
HD |
166844 |
|
GC |
24825 |
|
BD |
BD+08 3610 |
|
Distance |
157.48 |
|
Distance ly |
513.7 |
|