20086-4618 UC 4100BD

 
 
20h 08m 43.45s -46 18' 16.6" P.A. 359.00 sep 48.2 mag 9.02,16.40 Sp K0V dist. 70.37 pc (229.55 l.y.)
 
 
Coord 2000
20086-4618
Discov num
UC 4100
Comp
BD
Coord arcsec 2000
20 08 43.45 -46 18 16.6
Date first
1998
Date last
2015
Obs
3
Pa first
359
Pa last
359
P.A. Now (θ)
359°
Sep first
46.8
Sep last
48.2
Sep. Now (ρ)
48.2"
Mag pri
9.02
Mag sec
16.40
delta mag (ΔM)
7.38
Spectral class
K0V (yellow-orange)
Pri motion ra
-013
Sec motion ra
-016
Pri motion dec
-068
Sec motion dec
-073
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.078 (< 0.3, Physical double)
This double is physical.
 
 
20086-4618 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 230062 20 08 38 -46 18 05 CPO 88 AB 2015 13 101 57.4 8.30 9.02 0.72
Show 230062 20 08 38 -46 18 05 UC 4098 AC 2015 3 216 23.3 8.30 14.60 6.30
Show 230063 20 08 43 -46 18 17 UC 4100 BD 2015 3 359 48.2 9.02 16.40 7.38 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
359.4
Precise sep
48.206
Constellation
Hydra
SAO
230063
HIP
99245
Tycho2
8392-02362-1
Gaia DR2
6672432393865078400
HD
190803
CD
CD-4613400
CP
CP-46 9905
Distance
70.37
Distance ly
229.55
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20086-4618 UC 4100 BD 1999 2 359 47.3 9.02 16.40 K0V NV 200843.45-461816.6
20086-4618 UC 4100 BD 2015 3 359 48.2 9.02 16.40 K0V NV 200843.45-461816.6

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