18505+4240 JKA 7
18h 50m 27.08s +42° 40' 10.4" P.A. 48.00 sep 20.4 mag 13.70,16.40
| Coord 2000 |
18505+4240 |
|
Discov num |
JKA 7 |
|
Comp |
|
|
Coord arcsec 2000 |
18 50 27.08 +42 40 10.4 |
|
| Date first |
1998 |
|
Date last |
2016 |
|
Obs |
9 |
|
| Pa first |
48 |
|
Pa last |
47.5 |
|
P.A. Now (θ) |
47.5° |
|
| Sep first |
20.4 |
|
Sep last |
20.432 |
|
Sep. Now (ρ) |
20.432" |
|
| Mag pri |
13.70 |
|
Mag sec |
16.40 |
|
delta mag (ΔM) |
2.7 |
|
Spectral class |
|
|
| Pri motion ra |
-018 |
|
Sec motion ra |
-017 |
|
| Pri motion dec |
-035 |
|
Sec motion dec |
-034 |
|
| 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 |
2104780098145255296 |
|
