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Doubles in session


Current system
20273-1813
CHR 184 Aa,Ab


Nearby doubles
33' : 20289-1749
SHJ 323AB

39' : 20268-1851
HU 586

43' : 20277-1731
ARA 302

43' : 20299-1835
SHJ 324AB

45' : 20293-1847
ARA 800

58' : 20274-1909
B 2485

63' : 20311-1842
LDS4847

76' : 20234-1902
ARA 799

77' : 20224-1841
B 479

77' : 20299-1702
FEN 38

80' : 20289-1928
SHN 245

84' : 20330-1752
ARA 497AB

88' : 20220-1854
DON1119

90' : 20210-1819
OCC 824

92' : 20221-1721
LDS6340

92' : 20209-1809
OCC 825

95' : 20292-1943
GWP2958

96' : 20219-1909
ARA 797

97' : 20248-1943
HDS2919

112' : 20201-1730
UC 4149AB

112' : 20332-1658
RST3263

112' : 20242-1956
ARA1208

112' : 20346-1856
UC 4219AB

113' : 20305-1955
OCC 190

113' : 20222-1647
H N 138

116' : 20342-1913
UC 4217



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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20273-1813 CHR 184 Aa,Ab

 
 
20h 27m 19.20s -18° 12' 42.1" P.A. 50.00 sep 0.1 mag 5.30,7.90 Sp B8II-III dist. 167.22 pc (545.47 l.y.)
 
 
Coord 2000 20273-1813 Discov num CHR 184 Comp Aa,Ab Coord arcsec 2000 20 27 19.20 -18 12 42.1
Date first 1992 Date last 2009 Obs 2
Pa first 306 Pa last 50 P.A. Now (θ) 50°
Sep first 0.1 Sep last 0.071 Sep. Now (ρ) 0.071"
Mag pri 5.30 Mag sec 7.90 delta mag (ΔM) 2.6 Spectral class B8II-III (blue-white)
Pri motion ra +011 Sec motion ra
Pri motion dec -012 Sec motion dec
Notes N X (See Notes, Dubious double)
Nature of this double is uncertain.
 
 
20273-1813 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 163592 20 27 19 -18 12 42 CHR 184 Aa,Ab 2009 2 50 0.1 5.30 7.90 2.60 <===
Show Pi Cap 163592 20 27 19 -18 12 42 BU 60 AB 2019 69 148 3.5 5.13 8.53 3.40
Show 163592 20 27 19 -18 12 42 BU 296 AC 1999 4 40 37.9 5.13 14.10 8.97
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Capricornus SAO 163592 HIP 100881 Tycho2 6333-02129-2
Gaia DR2 6860902873140593152 HD 194636 HR 7814 GC 28442
ADS 13860 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
Bayer greek π Cap
 
 
WDS 20273-1813 CHR 184 Aa,Ab : NOTES
 
 
discov_num notes refcode
CHR 184 Aa,Ab: pi Cap = 10 Cap. The suspected radial velocity variation may
well be explained by the close pair.
Abt & Biggs (1972) note variable RV. AbH1972
 
 
REFERENCES
 
 
refcode metd author reference
AbH1972 - Abt. H.A. & Biggs, E.S. 1972bsrv.book.....A
AbH1972 Bibliography of Stellar Radial Velocities
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20273-1813 CHR 184 Aa,Ab 1992 1 306 0.1 5.25   B8II-III N 202719.20-181242.1
20273-1813 CHR 184 Aa,Ab 2009 2 50 0.1 5.30 7.90 B8II-III N 202719.20-181242.1

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 20273-1813 CHR 184 Aa,Ab : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20273-1813 CHR 184 Aa,Ab : MEASURES
 
 
No records found.

 
 
WDS 20273-1813 : VIRTUAL EYEPIECE
 
 

20273-1813 BU 60A mag 5.13 Sp B8II 20273-1813 CHR 184Ab mag 7.9 Sp III 20273-1813 BU 60B sep 3.4 P.A. 149.10 mag 8.53 Sp III 20273-1813 BU 296C sep 37.1 P.A. 38.80 mag 14.1 Sp III virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20273-1813 : ALADIN DSS IMAGE @ 20h 27m 19.20s -18° 12' 42.1"
 
 
 
 
WDS 20273-1813 CHR 184 Aa,Ab : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20273-1813 CHR 184Aa,Ab distance=0' 20289-1749 DOB 13DE distance=32' 20289-1749 BU 61BC distance=33' 20289-1749 SHJ 323AB distance=33' 20289-1749 SHJ 323AD distance=33' 20289-1749 BU 61AC distance=33' 20268-1851 HU 586 distance=39' 20277-1731 ARA 302 distance=43' 20299-1835 SHJ 324AB distance=43' 20293-1847 ARA 800 distance=45' 20274-1909 B 2485 distance=58' 20311-1842 LDS4847 distance=63' 20234-1902 ARA 799 distance=76' 20224-1841 B 479 distance=77' 20299-1702 FEN 38 distance=77' 20289-1928 SHN 245 distance=80' 20330-1752 ARA 497AB distance=84' 20330-1752 GMC 27AC distance=84' 20220-1854 DON1119 distance=88' 20210-1819 OCC 824 distance=90' 20221-1721 LDS6340 distance=92' 20209-1809 OCC 825 distance=92' 20292-1943 GWP2958 distance=95' 20219-1909 ARA 797 distance=96' 20248-1943 HDS2919 distance=97' 20201-1730 UC 4149AB distance=112' 20201-1730 KPP4395AC distance=112' 20332-1658 RST3263 distance=112' 20242-1956 ARA1208 distance=112' 20346-1856 UC 4219AB distance=112' 20305-1955 OCC 190 distance=113' 20222-1647 H N 138 distance=113' 20342-1913 UC 4217 distance=116' 20204-1919 WSP 68AB distance=119' 20204-1919 WSP 68AC distance=119' 20204-1919 WSP 68AD distance=119' 20204-1919 WSP 68AE distance=119' 20325-1637 SEE 512 distance=122' 20209-1939 BU 662BC distance=124' 20359-1758 HU 269 distance=124' 20187-1751 UC 4142 distance=125' 20209-1939 BU 662AB distance=125' 20194-1907 H 5 87 distance=126' 20362-1828 HJ 2980 distance=127' 20359-1738 ARA 304 distance=127' 20364-1807 GWP2969AB distance=131' 20270-2023 DON 986 distance=131' 20320-2006 ARA1209 distance=131' 20364-1807 GWP2970BC distance=132' 20263-1601 UC 4182 distance=134' 20278-1559 KPP2635 distance=134' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 20273-1813 CHR 184 Aa,Ab 50 0.1
Show 20273-1813 BU 60 AB 148 3.5
Show 20273-1813 BU 296 AC 40 37.9
Show 20289-1749 DOB 13 DE 93 53.5 32
Show 20289-1749 BU 61 BC 149 53.5 33
Show 20289-1749 SHJ 323 AB 189 1.7 33
Show 20289-1749 SHJ 323 AD 150 258.7 33
Show 20289-1749 BU 61 AC 150 54.6 33
Show 20268-1851 HU 586 118 0.6 39
Show 20277-1731 ARA 302 270 6.2 43
Show 20299-1835 SHJ 324 AB 238 22.0 43
Show 20293-1847 ARA 800 112 14.3 45
Show 20274-1909 B 2485 116 1.8 58
Show 20311-1842 LDS4847 23 2.9 63
Show 20234-1902 ARA 799 304 6.6 76
Show 20224-1841 B 479 117 2.3 77
Show 20299-1702 FEN 38 225 4.5 77
Show 20289-1928 SHN 245 -1 0.1 80
Show 20330-1752 ARA 497 AB 65 13.5 84
Show 20330-1752 GMC 27 AC 95 26.6 84
Show 20220-1854 DON1119 198 5.1 88
Show 20210-1819 OCC 824 -1 0.1 90
Show 20221-1721 LDS6340 356 7.2 92
Show 20209-1809 OCC 825 -1 0.1 92
Show 20292-1943 GWP2958 276 49.3 95
Show 20219-1909 ARA 797 46 5.1 96
Show 20248-1943 HDS2919 277 0.1 97
Show 20201-1730 UC 4149 AB 105 51.9 112
Show 20201-1730 KPP4395 AC 76 5.1 112
Show 20332-1658 RST3263 79 0.8 112
Show 20242-1956 ARA1208 307 12.9 112
Show 20346-1856 UC 4219 AB 177 61.5 112
Show 20305-1955 OCC 190 -1 0.1 113
Show 20222-1647 H N 138 327 3.3 113
Show 20342-1913 UC 4217 245 25.2 116
Show 20204-1919 WSP 68 AB 120 13.1 119
Show 20204-1919 WSP 68 AC 189 21.3 119
Show 20204-1919 WSP 68 AD 310 21.4 119
Show 20204-1919 WSP 68 AE 49 23.1 119
Show 20325-1637 SEE 512 127 0.3 122
Show 20209-1939 BU 662 BC 297 2.2 124
Show 20359-1758 HU 269 340 2.7 124
Show 20187-1751 UC 4142 195 40.8 125
Show 20209-1939 BU 662 AB 4 125.2 125
Show 20194-1907 H 5 87 180 56.0 126
Show 20362-1828 HJ 2980 202 19.6 127
Show 20359-1738 ARA 304 212 7.4 127
Show 20364-1807 GWP2969 AB 40 109.0 131
Show 20270-2023 DON 986 127 0.6 131
Show 20320-2006 ARA1209 278 5.8 131
Show 20364-1807 GWP2970 BC 350 8.3 132

 
 
WDS 20273-1813 : COMPONENTS
 
 
  A Ab B
Ab pa=48.5°
sep=0.07"
 
B pa=149.1°
sep=3.41"
pa=150.2°
sep=3.42"
 
C pa=38.8°
sep=37.10"
pa=38.7°
sep=37.04"
pa=34.0°
sep=38.42"
 
 
20273-1813 A
 
 
Name Pi Cap Coord arcsec 2000 202719.20-181242.1 Mag 5.13 Spectral class B8II (blue-white)
PmRA 11.00 PmDE -12.0 SAO 163592 HIP 100881
Tycho2 6333-02129-2 HD 194636 HR 7814 GC 28442
BD BD-18 5685 Bayer Pi Capricorni Bayer name Pi Cap Flamsteed 10 Capricorni
Flamsteed name 10 Cap
Tycho2
Tycho2 6333-02129-2 Pflag RAmdeg 306.83004169 DEmdeg -18.21172389
PmRA 11.0 PmDE -12.2 E RAmdeg 3 E DEmdeg 4
E pmRA 0.5 E pmDE 0.4 EpRAm 1991.16 EpDEm 1990.23
Num 24 Q RAmdeg 2.0 Q DEmdeg 2.0 Q pmRA 1.8
Q pmDE 2.2 BTmag 5.042 E BTmag 0.014 VTmag 5.130
E VTmag 0.009 Prox 34 TYC T HIP 100881
CCDM A RAdeg 306.83001528 DEdeg -18.21169444 EpRA 1990 1.81
EpDE 1990 1.41 E RAdeg 3.3 E DEdeg 3.8 Posflg
Corr -0.4
SAO
SAO 163592 DelFlag RA1950 PmRA1950 0.0009
DE1950 PmDE1950 -0.01 Vmag 5.2 SpType B8
Double code Source 70 CatNum 28442 DM BD-18 5685
DMcomp BDsup HD 194636 M HD 0
GC 28442 RA1950rad 5.34271663 DE1950rad -0.32074037 PmRA2000 0.001
PmDE2000 -0.011
Hipparcos
Catalog H HIP 100881 Proxy H RAhms 20 27 19.20
DEdms -18 12 42.1 Vmag 5.08 VarFlag R Vmag H
RAdeg 306.83 DEdeg -18.2117 AstroRef A Plx 4.9
CCDM 20273-1813 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 147 Rho 3.416 HD 194636 BD BD-18 5685
CD CP Dm number -18 5685 VIred -0.05
SpType B4V R SpType Coord arcsec 2000 202719.20-181242.1
Hipparcos 2
HIP 100881 Sn 15 So 3 Nc 2
RArad 5.3551940039 DErad -0.3178540243 Plx 5.98 PmRA 11.89
PmDE -11.35 E RArad 0.49 E DErad 0.31 E Plx 0.58
E pmRA 0.65 E pmDE 0.43 Hpmag 5.0747 E Hpmag 0.0005
SHp 0.005 VA 0 BV -0.049 E BV 0.006
VI -0.03
CCDM
Ccdm 20273-1813 RComp Comp A Note1
Note2 Discov num DRAs 1.22 DDEs 18.0
R dRAs 10 Year Theta Rho
Obs 3 Vmag 5.2 Sp B8 PmNote *
PmRA 13 PmDE -9 Dm number -18 5685 Cat1 BD
Name2 163592 Cat2 SAO HD 194636 M HD
ADS BDS A13860 M ADS BDS N IDS IDS 20216S1832A
HIC 100881
 
 
20273-1813 Ab
 
 
Coord arcsec 2000 202719.20-181242.1 Mag 7.9 Spectral class III Calc delta mag 2.6
Calc coord yes
 
 
20273-1813 B
 
 
Coord arcsec 2000 202719.32-181245.0 Mag 8.53 Spectral class III PmRA 10.00
PmDE -11.0 Calc delta mag 3.23 Calc coord yes
CCDM
Ccdm 20273-1813 RComp Comp B Note1
Note2 Discov num BU 60 DRAs DDEs
R dRAs Year 1955 Theta 148 Rho 3.2
Obs 99 Vmag 8.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13860 M ADS BDS N IDS IDS 20216S1832B
HIC 100881
 
 
20273-1813 C
 
 
Coord arcsec 2000 202720.83-181213.2 Mag 14.1 Spectral class III Calc delta mag 8.8
Calc coord yes
CCDM
Ccdm 20273-1813 RComp Comp C Note1
Note2 Discov num BU 296 DRAs DDEs
R dRAs Year 1898 Theta 044 Rho 38.1
Obs 1 Vmag 14.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13860 M ADS BDS N IDS IDS 20216S1832C
HIC