18420+4231 BVD 263
18h 41m 57.79s +42° 30' 44.2" P.A. 274.00 sep 5.6 mag 18.90,19.00
Coord 2000 |
18420+4231 |
|
Discov num |
BVD 263 |
|
Comp |
|
|
Coord arcsec 2000 |
18 41 57.79 +42 30 44.2 |
|
Date first |
1998 |
|
Date last |
2016 |
|
Obs |
8 |
|
Pa first |
275 |
|
Pa last |
274 |
|
P.A. Now (θ) |
274° |
|
Sep first |
5.8 |
|
Sep last |
5.633 |
|
Sep. Now (ρ) |
5.633" |
|
Mag pri |
18.90 |
|
Mag sec |
19.00 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
|
|
Pri motion ra |
-026 |
|
Sec motion ra |
-028 |
|
Pri motion dec |
-054 |
|
Sec motion dec |
-055 |
|
Notes |
V
(Proper motion indicates physical) |
|
rPM=0.036 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Lyra |
|
Gaia DR2 |
2116769585251278848 |
|