17210-2107 TNN 8 AC
17h 21m 00.37s -21° 06' 46.5" P.A. 261.00 sep 10.8 mag 3.07,13.74 Sp F2V dist. 17.36 pc (56.63 l.y.)
| Coord 2000 |
17210-2107 |
|
Discov num |
TNN 8 |
|
Comp |
AC |
|
Coord arcsec 2000 |
17 21 00.37 -21 06 46.5 |
|
| Date first |
2004 |
|
Date last |
2004 |
|
Obs |
1 |
|
| Pa first |
261 |
|
Pa last |
261.1 |
|
P.A. Now (θ) |
261.1° |
|
| Sep first |
10.8 |
|
Sep last |
10.79 |
|
Sep. Now (ρ) |
10.79" |
|
| Mag pri |
3.07 |
|
Mag sec |
13.74 |
|
delta mag (ΔM) |
10.67 |
|
Spectral class |
F2V (yellow-white) |
|
| Pri motion ra |
+256 |
|
Sec motion ra |
|
|
| Pri motion dec |
-211 |
|
Sec motion dec |
|
|
| Notes |
N
K
(See Notes, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
17210-2107 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Xi Oph |
185296 |
17 21 00 -21 06 46 |
DON 832 AB |
2016 |
18 |
26 |
4.1 |
4.40 |
8.90 |
4.50 |
Y |
|
| Show |
|
185296 |
17 21 00 -21 06 46 |
TNN 8 AC |
2004 |
1 |
261 |
10.8 |
3.07 |
13.74 |
10.67 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Ophiuchus |
|
SAO |
185296 |
|
HIP |
84893 |
|
Tycho2 |
6246-00664-1 |
|
| HD |
156897 |
|
HR |
6445 |
|
GC |
23423 |
|
GL |
Gl 670A |
|
| BD |
BD-20 4731 |
|
Bayer |
Xi Ophiuchi |
|
Bayer name |
Xi Oph |
|
Flamsteed |
40 Ophiuchi |
|
| Flamsteed name |
40 Oph |
|
Distance |
17.36 |
|
Distance ly |
56.63 |
|
Bayer greek |
ξ Oph |
|
