18546+2754 DAL   5AC

 
 
18h 54m 35.26s +27 54' 16.5" P.A. 274 sep 26.3 mag 11.92,12.07
 
 
Coord 2000
18546+2754
Discov num
DAL   5
Comp
AC
Coord arcsec 2000
18 54 35.26 +27 54 16.5
Date first
1907
Date last
2002
Obs
5
Pa first
272
Pa last
274
P.A. Now (θ)
274°
Sep first
27.3
Sep last
26.3
Sep. Now (ρ)
26.3"
Mag pri
11.92
Mag sec
12.07
delta mag (ΔM)
0.15
Spectral class
Pri motion ra
-018
Sec motion ra
-006
Pri motion dec
-011
Sec motion dec
-001
Notes
N U (See Notes, Proper motion indicates non-physical)
rPM=0.74
This double is not physical.
 
 
18546+2754 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18546+2754 BRT3335 AB 1897 2002 6 69 9.3 11.92 11.71 0.21
Show 18546+2754 DAL 5 AC 1907 2002 5 274 26.3 11.92 12.07 0.15 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
273.8
Precise sep
26.303
Constellation
Lyra
last precise pa
273.8
last precise sep
26.303
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18546+2754 DAL 5 AC 2001 4 273 26.7 11.92 12.07 D 185435.26+275416.5
18546+2754 DAL 5 AC 2002 5 274 26.3 11.92 12.07 NUD 185435.26+275416.5

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