18545+3719 HO 90
18h 54m 27.98s +37° 18' 45.5" P.A. 228.00 sep 4.0 mag 8.72,12.70 Sp K5
Coord 2000 |
18545+3719 |
|
Discov num |
HO 90 |
|
Comp |
|
|
Coord arcsec 2000 |
18 54 27.98 +37 18 45.5 |
|
Date first |
1885 |
|
Date last |
2017 |
|
Obs |
14 |
|
Pa first |
225 |
|
Pa last |
227.5 |
|
P.A. Now (θ) |
227.5° |
|
Sep first |
3.8 |
|
Sep last |
3.98 |
|
Sep. Now (ρ) |
3.98" |
|
Mag pri |
8.72 |
|
Mag sec |
12.70 |
|
delta mag (ΔM) |
3.98 |
|
Spectral class |
K5 (yellow-orange) |
|
Pri motion ra |
-008 |
|
Sec motion ra |
|
|
Pri motion dec |
-051 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Lyra |
|
Tycho2 |
2651-00404-1 |
|
Gaia DR2 |
2093958635987671040 |
|