18155+3822 ALI 870

 
 
18h 15m 29.56s +38 21' 44.3" P.A. 242 sep 8.7 mag 11.39,12.90
 
 
Coord 2000
18155+3822
Discov num
ALI 870
Comp
Coord arcsec 2000
18 15 29.56 +38 21 44.3
Date first
1930
Date last
2006
Obs
5
Pa first
250
Pa last
242
P.A. Now (θ)
242°
Sep first
7.9
Sep last
8.7
Sep. Now (ρ)
8.7"
Mag pri
11.39
Mag sec
12.90
delta mag (ΔM)
1.51
Spectral class
Pri motion ra
-002
Sec motion ra
-018
Pri motion dec
+000
Sec motion dec
-015
Notes
rPM=0.936
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
242.3
Precise sep
8.7
Constellation
Lyra
Tycho2
3103-01320-1
last precise pa
242.3
last precise sep
8.7
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18155+3822 ALI 870 2006 4 242 8.7 11.39 12.90 D 181529.56+382144.3

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