20181-1233 AGC 12 AD

 
 
20h 18m 03.22s -12 32' 41.4" P.A. 159.00 sep 153.4 mag 3.66,10.50 Sp G9III dist. 32.45 pc (105.85 l.y.)
 
 
Coord 2000 20181-1233 Discov num AGC  12 Comp AD Coord arcsec 2000 20 18 03.22 -12 32 41.4
Date first 1838 Date last 2020 Obs 15
Pa first 156 Pa last 158.7 P.A. Now (θ) 158.7°
Sep first 198.0 Sep last 153.4 Sep. Now (ρ) 153.4"
Mag pri 3.66 Mag sec 10.50 delta mag (ΔM) 6.84 Spectral class G9III (yellow)
Pri motion ra +063 Sec motion ra +004
Pri motion dec +003 Sec motion dec -008
Notes N S (See Notes, Parallax indidates non-physical)
rPM=0.952
This double is not physical.
 
 
20181-1233 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Algedi 163427 20 18 03 -12 32 41 HJ 608 A,BC 2010 27 196 6.6 3.66 11.10 7.44
Show 163427 20 18 03 -12 32 41 AGC 12 AD 2020 15 159 153.4 3.66 10.50 6.84 <===
Show 163427 20 18 03 -12 32 41 STFA 51 AE 2012 47 290 381.2 3.66 4.34 0.68
Show 20 18 03 -12 32 48 AGC 12 BC 2016 21 241 1.2 11.20 11.50 0.30
Quintuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Algedi Constellation Capricornus SAO 163427 HIP 100064
Tycho2 5749-02530-1 Gaia DR2 6880093650312745984 HD 192947 HR 7754
GC 28200 ADS 13645 BD BD-12 5685 Bayer Alpha 2 Capricorni
Bayer name Alp2 Cap Flamsteed 6 Capricorni Flamsteed name 6 Cap FK5 761
Distance 32.45 Distance ly 105.85 Bayer greek α2 Cap
Other names Gredi, Secunda Giedi, Algiedi Secunda
Meaning From Arabic: ????? al-jady ('the (male) kid'). Alternative traditional names are Al Giedi, Secunda Giedi and Algiedi Secunda.