18546+3020 HDS 2681
18h 54m 38.15s +30° 19' 45.7" P.A. 282.00 sep 4.4 mag 9.16,13.30 Sp A2 dist. 263.85 pc (860.68 l.y.)
| Coord 2000 |
18546+3020 |
|
Discov num |
HDS2681 |
|
Comp |
|
|
Coord arcsec 2000 |
18 54 38.15 +30 19 45.7 |
|
| Date first |
1991 |
|
Date last |
1991 |
|
Obs |
2 |
|
| Pa first |
282 |
|
Pa last |
281.8 |
|
P.A. Now (θ) |
281.8° |
|
| Sep first |
4.3 |
|
Sep last |
4.36 |
|
Sep. Now (ρ) |
4.36" |
|
| Mag pri |
9.16 |
|
Mag sec |
13.30 |
|
delta mag (ΔM) |
4.14 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
-005 |
|
Sec motion ra |
-007 |
|
| Pri motion dec |
+000 |
|
Sec motion dec |
-003 |
|
| Notes |
|
|
rPM=0.473
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lyra |
|
HIP |
92809 |
|
Tycho2 |
2639-01577-1 |
|
Gaia DR2 |
2041514439605511040 |
|
| BD |
BD+30 3342 |
|
Distance |
263.85 |
|
Distance ly |
860.68 |
|
