18301+0404 STF 2322 AB (HD 170580)
18h 30m 05.12s +04° 03' 55.3" P.A. 172.00 sep 19.8 mag 6.67,11.28 Sp B2V dist. 507.61 pc (1655.82 l.y.)
| Coord 2000 |
18301+0404 |
|
Discov num |
STF2322 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 30 05.12 +04 03 55.3 |
|
| Date first |
1828 |
|
Date last |
2009 |
|
Obs |
25 |
|
| Pa first |
171 |
|
Pa last |
171.8 |
|
P.A. Now (θ) |
171.8° |
|
| Sep first |
19.6 |
|
Sep last |
19.81 |
|
Sep. Now (ρ) |
19.81" |
|
| Mag pri |
6.67 |
|
Mag sec |
11.28 |
|
delta mag (ΔM) |
4.61 |
|
Spectral class |
B2V (blue-white) |
|
| Pri motion ra |
-001 |
|
Sec motion ra |
-002 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
-012 |
|
| Notes |
N
(See Notes) |
|
rPM=0.419
Nature of this double is uncertain.
18301+0404 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
123571 |
18 30 05 +04 03 55 |
CHR 72 Aa,Ab |
2021 |
17 |
285 |
0.1 |
6.70 |
9.60 |
2.90 |
Y |
|
| Show |
HD 170580 |
123571 |
18 30 05 +04 03 55 |
STF 2322 AB |
2009 |
25 |
172 |
19.8 |
6.67 |
11.28 |
4.61 |
|
<=== |
| Show |
|
123571 |
18 30 05 +04 03 55 |
STF 2322 AC |
2015 |
10 |
295 |
67.2 |
6.67 |
12.79 |
6.12 |
|
|
| Show |
|
123571 |
18 30 05 +04 03 55 |
STF 2322 AD |
2009 |
7 |
197 |
85.3 |
6.67 |
13.39 |
6.72 |
|
|
Quintuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 170580 |
|
Constellation |
Ophiuchus |
|
SAO |
123571 |
|
HIP |
90676 |
|
| Tycho2 |
0454-01662-1 |
|
Gaia DR2 |
4284093473916591104 |
|
HD |
170580 |
|
HR |
6941 |
|
| GC |
25256 |
|
ADS |
11399 |
|
BD |
BD+03 3727 |
|
FK5 |
3469 |
|
| Distance |
507.61 |
|
Distance ly |
1655.82 |
|
