18551+4051 HEI  73

 
 
18h 55m 06.56s +40 50' 31.6" P.A. 322 sep 0.8 mag 10.95,11.10
 
 
Coord 2000
18551+4051
Discov num
HEI  73
Comp
Coord arcsec 2000
18 55 06.56 +40 50 31.6
Date first
1979
Date last
2015
Obs
7
Pa first
321
Pa last
322
P.A. Now (θ)
322°
Sep first
0.5
Sep last
0.8
Sep. Now (ρ)
0.8"
Mag pri
10.95
Mag sec
11.10
delta mag (ΔM)
0.15
Spectral class
Pri motion ra
-002
Sec motion ra
-002
Pri motion dec
-004
Sec motion dec
-004
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
322
Precise sep
0.77
Cdsa2 id
HEI 73
Constellation
Lyra
Tycho2
3123-01256-1
Ra deg
18.91848888888889
De deg
40.842111111111116
last precise pa
322
last precise sep
0.77
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18551+4051 HEI 73 1997 5 358 0.3 10.95 11.10 185506.56+405031.6
18551+4051 HEI 73 2008 6 319 0.7 10.95 11.10 185506.56+405031.6
18551+4051 HEI 73 2015 7 322 0.8 10.95 11.10 185506.56+405031.6

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