20273-1813 BU   60AB (Pi Cap)

 
 
20h 27m 19.20s -18 12' 42.1" P.A. 149 sep 3.6 mag 5.13,8.53 Sp B8II-III dist. 167.22 pc (545.47 l.y.)
 
 
Coord 2000
20273-1813
Discov num
BU   60
Comp
AB
Coord arcsec 2000
20 27 19.20 -18 12 42.1
Date first
1846
Date last
2016
Obs
68
Pa first
145
Pa last
149
P.A. Now (θ)
149°
Sep first
2.9
Sep last
3.6
Sep. Now (ρ)
3.6"
Mag pri
5.13
Mag sec
8.53
delta mag (ΔM)
3.4
Spectral class
B8II-III (blue-white)
Pri motion ra
+011
Sec motion ra
+010
Pri motion dec
-012
Sec motion dec
-011
Notes
N (See Notes)
rPM=0.087 (< 0.3, Physical double)
This double is physical.
 
 
20273-1813 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 163592 20273-1813 CHR 184 Aa,Ab 1992 2009 2 50 0.1 5.30 7.90 2.60
Show Pi Cap 163592 20273-1813 BU 60 AB 1846 2016 68 149 3.6 5.13 8.53 3.40 <===
Show 20273-1813 BU 296 AC 1898 1999 4 40 37.9 5.13 14.10 8.97
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
149.3
Precise sep
3.63
Name
Pi Cap
Constellation
Capricornus
SAO
163592
HIP
100881
Tycho2
6333-02129-2
Gaia DR2
73140593152
HD
194636
HR
7814
GC
28442
BD
BD-18 5685
Bayer
Pi Capricorni
Bayer name
Pi Cap
Flamsteed
10 Capricorni
Flamsteed name
10 Cap
Distance
167.22
Distance ly
545.47
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20273-1813 BU 60 AB 2002 66 146 3.2 5.13 8.53 B8II-III D 202719.20-181242.1
20273-1813 BU 60 AB 2010 67 150 3.3 5.13 8.53 B8II-III N D 202719.20-181242.1
20273-1813 BU 60 AB 2016 68 149 3.6 5.13 8.53 B8II-III N 202719.20-181242.1

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