18487+4052 UC 3680

 
 
18h 48m 41.97s +40 52' 26.5" P.A. 249 sep 10.2 mag 12.20,15.40
 
 
Coord 2000
18487+4052
Discov num
UC 3680
Comp
Coord arcsec 2000
18 48 41.97 +40 52 26.5
Date first
2000
Date last
2015
Obs
4
Pa first
247
Pa last
249
P.A. Now (θ)
249°
Sep first
11.1
Sep last
10.2
Sep. Now (ρ)
10.2"
Mag pri
12.20
Mag sec
15.40
delta mag (ΔM)
3.2
Spectral class
Pri motion ra
-050
Sec motion ra
-037
Pri motion dec
-064
Sec motion dec
-044
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.294 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
249.1
Precise sep
10.198
Constellation
Lyra
last precise pa
249.1
last precise sep
10.198
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18487+4052 UC 3680 2000 2 247 11.1 12.20 15.40 V 184841.97+405226.5
18487+4052 UC 3680 2003 3 247 10.9 12.20 15.40 V 184841.97+405226.5
18487+4052 UC 3680 2015 4 249 10.2 12.20 15.40 V R 184841.97+405226.5

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