18237+3821 HO 431 (HD 169617)
18h 23m 44.07s +38° 20' 42.3" P.A. 4.00 sep 19.8 mag 6.91,12.30 Sp A0III dist. 167.5 pc (546.38 l.y.)
| Coord 2000 |
18237+3821 |
|
Discov num |
HO 431 |
|
Comp |
|
|
Coord arcsec 2000 |
18 23 44.07 +38 20 42.3 |
|
| Date first |
1892 |
|
Date last |
2015 |
|
Obs |
12 |
|
| Pa first |
359 |
|
Pa last |
3.6 |
|
P.A. Now (θ) |
3.6° |
|
| Sep first |
21.2 |
|
Sep last |
19.78 |
|
Sep. Now (ρ) |
19.78" |
|
| Mag pri |
6.91 |
|
Mag sec |
12.30 |
|
delta mag (ΔM) |
5.39 |
|
Spectral class |
A0III (white) |
|
| Pri motion ra |
-010 |
|
Sec motion ra |
|
|
| Pri motion dec |
+017 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 169617 |
|
Constellation |
Lyra |
|
SAO |
66933 |
|
HIP |
90140 |
|
| Tycho2 |
3104-01010-1 |
|
Gaia DR2 |
2108224455757800832 |
|
HD |
169617 |
|
GC |
25129 |
|
| BD |
BD+38 3159 |
|
Distance |
167.5 |
|
Distance ly |
546.38 |
|
