18451+3756 ES 2020

 
 
18h 45m 09.42s +37 56' 11.5" P.A. 342 sep 3.7 mag 10.33,12.00
 
 
Coord 2000
18451+3756
Discov num
ES 2020
Comp
Coord arcsec 2000
18 45 09.42 +37 56 11.5
Date first
1923
Date last
2011
Obs
4
Pa first
347
Pa last
342
P.A. Now (θ)
342°
Sep first
2.9
Sep last
3.7
Sep. Now (ρ)
3.7"
Mag pri
10.33
Mag sec
12.00
delta mag (ΔM)
1.67
Spectral class
Pri motion ra
+019
Sec motion ra
Pri motion dec
-024
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
342.1
Precise sep
3.662
Constellation
Lyra
Tycho2
3118-01204-1
last precise pa
342.1
last precise sep
3.662
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18451+3756 ES 2020 1940 2 343 3.4 10.33 12.00 184509.42+375611.5
18451+3756 ES 2020 2009 3 341 3.5 10.33 12.00 184509.42+375611.5
18451+3756 ES 2020 2011 4 342 3.7 10.33 12.00 184509.42+375611.5

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