20400+3821 KPP   5

 
 
20h 39m 59.21s +38 20' 41.2" P.A. 337.00 sep 3.1 mag 16.40,17.00 Sp M3
 
 
Coord 2000
20400+3821
Discov num
KPP   5
Comp
Coord arcsec 2000
20 39 59.21 +38 20 41.2
Date first
1951
Date last
2016
Obs
7
Pa first
325
Pa last
337
P.A. Now (θ)
337°
Sep first
2.4
Sep last
3.1
Sep. Now (ρ)
3.1"
Mag pri
16.40
Mag sec
17.00
delta mag (ΔM)
0.6
Spectral class
M3 (red)
Pri motion ra
-060
Sec motion ra
-061
Pri motion dec
-145
Sec motion dec
-144
Notes
V (Proper motion indicates physical)
Visually invisible, K-band or other infrared star rPM=0.009 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
336.5
Precise sep
3.074
Constellation
Cygnus
Gaia DR2
05200334848
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20400+3821 KPP 5 2016 6 337 3.1 16.40 17.00 M3 V 203959.21+382041.2

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