18389+3658 ALI 378

 
 
18h 38m 49.35s +36 58' 07.3" P.A. 33 sep 12.5 mag 11.40,11.85
 
 
Coord 2000
18389+3658
Discov num
ALI 378
Comp
Coord arcsec 2000
18 38 49.35 +36 58 07.3
Date first
1934
Date last
2014
Obs
7
Pa first
38
Pa last
33
P.A. Now (θ)
33°
Sep first
13.7
Sep last
12.5
Sep. Now (ρ)
12.5"
Mag pri
11.40
Mag sec
11.85
delta mag (ΔM)
0.45
Spectral class
Pri motion ra
+016
Sec motion ra
+001
Pri motion dec
+016
Sec motion dec
+017
Notes
rPM=0.664
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
32.7
Precise sep
12.45
Constellation
Lyra
Tycho2
2649-00567-1
last precise pa
32.7
last precise sep
12.45
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18389+3658 ALI 378 2002 4 34 12.5 11.40 11.85 D 183849.35+365807.3
18389+3658 ALI 378 2014 6 33 12.5 11.40 11.85 183849.35+365807.3

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