17199-1745 BU 126 AB (HD 156717)
17h 19m 53.35s -17° 45' 23.3" P.A. 265.00 sep 2.4 mag 6.34,7.56 Sp A2Vnn dist. 115.21 pc (375.82 l.y.)
Coord 2000 |
17199-1745 |
|
Discov num |
BU 126 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 19 53.35 -17 45 23.3 |
|
Date first |
1873 |
|
Date last |
2016 |
|
Obs |
70 |
|
Pa first |
250 |
|
Pa last |
264.7 |
|
P.A. Now (θ) |
264.7° |
|
Sep first |
1.8 |
|
Sep last |
2.399 |
|
Sep. Now (ρ) |
2.399" |
|
Mag pri |
6.34 |
|
Mag sec |
7.56 |
|
delta mag (ΔM) |
1.22 |
|
Spectral class |
A2Vnn (white) |
|
Pri motion ra |
+005 |
|
Sec motion ra |
|
|
Pri motion dec |
-024 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
17199-1745 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 156717 |
160462 |
17 19 53 -17 45 23 |
BU 126 AB |
2016 |
70 |
265 |
2.4 |
6.34 |
7.56 |
1.22 |
|
<=== |
Show |
|
160462 |
17 19 53 -17 45 23 |
BU 126 AC |
2015 |
13 |
141 |
11.5 |
6.34 |
11.20 |
4.86 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 156717 |
|
Constellation |
Ophiuchus |
|
SAO |
160462 |
|
HIP |
84792 |
|
Tycho2 |
6237-03261-1 |
|
Gaia DR2 |
4134893727444397696 |
|
HD |
156717 |
|
HR |
6435 |
|
GC |
23396 |
|
ADS |
10465 |
|
BD |
BD-17 4773 |
|
Distance |
115.21 |
|
Distance ly |
375.82 |
|