18563+3909 MLB 855

 
 
18h 56m 17.58s +39 09' 08.9" P.A. 254 sep 4.9 mag 12.60,13.80
 
 
Coord 2000
18563+3909
Discov num
MLB 855
Comp
Coord arcsec 2000
18 56 17.58 +39 09 08.9
Date first
1933
Date last
2002
Obs
3
Pa first
232
Pa last
254
P.A. Now (θ)
254°
Sep first
4.4
Sep last
4.9
Sep. Now (ρ)
4.9"
Mag pri
12.60
Mag sec
13.80
delta mag (ΔM)
1.2
Spectral class
Pri motion ra
+056
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
253.9
Precise sep
4.859
Constellation
Lyra
last precise pa
253.9
last precise sep
4.859
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18563+3909 MLB 855 1998 2 253 5.0 12.60 13.80 D 185617.58+390908.9
18563+3909 MLB 855 2002 3 254 4.9 12.60 13.80 D 185617.58+390908.9
18563+3909 MLB 855 2010 4 243 4.4 12.60 13.80 185617.58+390908.9

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