18031-0811 STF 2262 AC
18h 03m 04.91s -08° 10' 48.9" P.A. 125.00 sep 100.8 mag 5.27,11.28 Sp F4IV dist. 51.33 pc (167.44 l.y.)
Coord 2000 |
18031-0811 |
|
Discov num |
STF2262 |
|
Comp |
AC |
|
Coord arcsec 2000 |
18 03 04.91 -08 10 48.9 |
|
Date first |
1832 |
|
Date last |
2000 |
|
Obs |
13 |
|
Pa first |
115 |
|
Pa last |
125.4 |
|
P.A. Now (θ) |
125.4° |
|
Sep first |
83.1 |
|
Sep last |
100.794 |
|
Sep. Now (ρ) |
100.794" |
|
Mag pri |
5.27 |
|
Mag sec |
11.28 |
|
delta mag (ΔM) |
6.01 |
|
Spectral class |
F4IV (yellow-white) |
|
Pri motion ra |
+027 |
|
Sec motion ra |
+023 |
|
Pri motion dec |
-031 |
|
Sec motion dec |
-018 |
|
Notes |
N
(See Notes) |
|
rPM=0.331
Nature of this double is uncertain.
18031-0811 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
Tau Oph |
142050 |
18 03 05 -08 10 49 |
STF 2262 AB |
2021 |
665 |
291 |
1.4 |
5.27 |
5.86 |
0.59 |
Y |
|
Show |
|
142050 |
18 03 05 -08 10 49 |
STF 2262 AC |
2000 |
13 |
125 |
100.8 |
5.27 |
11.28 |
6.01 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
NSV10073 Oph |
|
Constellation |
Ophiuchus |
|
SAO |
142050 |
|
HIP |
88404 |
|
Tycho2 |
5675-00662-1 |
|
Gaia DR2 |
4170583776094715520 |
|
HD |
164764 |
|
HR |
6733 |
|
GC |
24565 |
|
ADS |
11005 |
|
GL |
Gl 700.1B |
|
BD |
BD-08 4549 |
|
Bayer |
Tau Ophiuchi |
|
Bayer name |
Tau Oph |
|
Flamsteed |
69 Ophiuchi |
|
Flamsteed name |
69 Oph |
|
Distance |
51.33 |
|
Distance ly |
167.44 |
|
Bayer greek |
τ Oph |
|