17593-0651 STF 2250 AB (HD 163998)
17h 59m 18.09s -06° 51' 21.2" P.A. 344.00 sep 7.8 mag 8.79,9.24 Sp B9 dist. 645.16 pc (2104.51 l.y.)
Coord 2000 |
17593-0651 |
|
Discov num |
STF2250 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 59 18.09 -06 51 21.2 |
|
Date first |
1830 |
|
Date last |
2019 |
|
Obs |
41 |
|
Pa first |
347 |
|
Pa last |
344 |
|
P.A. Now (θ) |
344° |
|
Sep first |
8.6 |
|
Sep last |
7.82 |
|
Sep. Now (ρ) |
7.82" |
|
Mag pri |
8.79 |
|
Mag sec |
9.24 |
|
delta mag (ΔM) |
0.45 |
|
Spectral class |
B9 (blue-white) |
|
Pri motion ra |
-005 |
|
Sec motion ra |
-005 |
|
Pri motion dec |
-008 |
|
Sec motion dec |
-010 |
|
Notes |
N
(See Notes) |
|
rPM=0.179 (< 0.3, Physical double)
This double is physical.
17593-0651 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 163998 |
142008 |
17 59 18 -06 51 21 |
STF 2250 AB |
2019 |
41 |
344 |
7.8 |
8.79 |
9.24 |
0.45 |
|
<=== |
Show |
|
142008 |
17 59 18 -06 51 21 |
SIN 106 AC |
2015 |
7 |
92 |
45.0 |
8.79 |
14.21 |
5.42 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 163998 |
|
Constellation |
Ophiuchus |
|
SAO |
142008 |
|
HIP |
88078 |
|
Tycho2 |
5095-00443-1 |
|
Gaia DR2 |
4172046401447484672 |
|
HD |
163998 |
|
GC |
24479 |
|
BD |
BD-06 4689 |
|
Distance |
645.16 |
|
Distance ly |
2104.51 |
|