18421+2857 HDS 2648 (FI Lyr)
18h 42m 04.83s +28° 57' 29.7" P.A. 194.00 sep 0.3 mag 9.46,9.65 Sp M dist. 358.42 pc (1169.17 l.y.)
| Coord 2000 |
18421+2857 |
|
Discov num |
HDS2648 |
|
Comp |
|
|
Coord arcsec 2000 |
18 42 04.83 +28 57 29.7 |
|
| Date first |
1991 |
|
Date last |
2009 |
|
Obs |
2 |
|
| Pa first |
97 |
|
Pa last |
193.8 |
|
P.A. Now (θ) |
193.8° |
|
| Sep first |
0.2 |
|
Sep last |
0.319 |
|
Sep. Now (ρ) |
0.319" |
|
| Mag pri |
9.46 |
|
Mag sec |
9.65 |
|
delta mag (ΔM) |
0.19 |
|
Spectral class |
M (red) |
|
| Pri motion ra |
-005 |
|
Sec motion ra |
|
|
| Pri motion dec |
+009 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Var name |
FI Lyr |
|
Constellation |
Lyra |
|
HIP |
91703 |
|
Tycho2 |
2120-00426-1 |
|
| Gaia DR2 |
4539472985237012224 |
|
BD |
BD+28 3059 |
|
Distance |
358.42 |
|
Distance ly |
1169.17 |
|
