20124+2043 NSN 730

 
 
20h 12m 22.44s +20 43' 11.4" P.A. 146.00 sep 3.2 mag 13.64,15.39
 
 
Coord 2000
20124+2043
Discov num
NSN 730
Comp
Coord arcsec 2000
20 12 22.44 +20 43 11.4
Date first
1971
Date last
2016
Obs
4
Pa first
169
Pa last
146
P.A. Now (θ)
146°
Sep first
2.7
Sep last
3.2
Sep. Now (ρ)
3.2"
Mag pri
13.64
Mag sec
15.39
delta mag (ΔM)
1.75
Spectral class
Pri motion ra
+201
Sec motion ra
+199
Pri motion dec
-061
Sec motion dec
-053
Notes
T (Parallax indicates physical)
Visually invisible, K-band or other infrared star rPM=0.039 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
145.8
Precise sep
3.176
Constellation
Sagitta
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20124+2043 NSN 730 2015 3 144 3.0 13.64 15.39 T 201222.44+204311.4
20124+2043 NSN 730 2016 4 146 3.2 13.64 15.39 T 201222.44+204311.4

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