20599+4016 RAO  72DE

 
 
20h 58m 11.46s +40 11' 29.0" P.A. 118.00 sep 19.8 mag 11.00,15.80 Sp M1 dist. 43.9 pc (143.2 l.y.)
 
 
Coord 2000
20599+4016
Discov num
RAO  72
Comp
DE
Coord arcsec 2000
20 58 11.46 +40 11 29.0
Date first
2000
Date last
2012
Obs
3
Pa first
108
Pa last
118
P.A. Now (θ)
118°
Sep first
21.3
Sep last
19.8
Sep. Now (ρ)
19.8"
Mag pri
11.00
Mag sec
15.80
delta mag (ΔM)
4.8
Spectral class
M1 (red)
Pri motion ra
+231
Sec motion ra
+000
Pri motion dec
+201
Sec motion dec
-008
Notes
N (See Notes)
rPM=1.017
This double is not physical.
 
 
20599+4016 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 50331 20 59 55 +40 15 32 LSC 1 Aa1,2 2012 2 257 0.0 7.00 8.20 1.20 Y
Show 50331 20 59 55 +40 15 32 COU 2431 Aa,Ab 2018 12 205 2.2 6.66 10.80 4.14
Show 50331 20 59 55 +40 15 32 ENG 79 AB 2003 10 219 165.9 6.66 9.76 3.10
Show 50331 20 59 55 +40 15 32 BUP 221 AC 2003 9 154 210.3 6.66 9.71 3.05
Show 50331 20 59 55 +40 15 32 LEP 98 AD 2002 7 259 999.9 6.66 10.90 4.24
Show 50331 20 59 46 +40 13 24 BUP 221 BC 2015 13 107 203.7 9.76 9.71 0.05
Show 50331 21 00 03 +40 12 23 SEI 1363 CR 2015 25 37 8.7 9.71 10.67 0.96
Show 20 58 11 +40 11 29 HDS 2989 Da,Db 2018 10 142 0.1 11.16 12.46 1.30 Y
Show 20 58 11 +40 11 29 RAO 72 DE 2012 3 118 19.8 11.00 15.80 4.80 <===
Ninefold system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
117.6
Precise sep
19.752
Constellation
Hydra
HIP
103502
Tycho2
3171-01526-3
Gaia DR2
1873271430935980160
Distance
43.9
Distance ly
143.2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20599+4016 RAO 72 DE 2012 3 118 19.8 11.00 15.80 M1 N 205811.46+401129.0

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