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Current system
20493-1802
HJ 3000


Nearby doubles
17' : 20484-1812
S 763AB

45' : 20474-1837
HJ 2995

55' : 20509-1851
GWP3005

60' : 20452-1809
GWP2992

71' : 20533-1719
HLD 42

75' : 20522-1904
I 667

77' : 20468-1655
ARN 110

81' : 20452-1857
ARA 803

81' : 20464-1653
HU 271

81' : 20537-1711
GWP3014

85' : 20494-1638
RST3269

90' : 20465-1642
SKI 11

92' : 20429-1757
ARA 499AB

96' : 20427-1807
OCC 603

99' : 20519-1631
HJ 3001

100' : 20550-1705
SKF2092

103' : 20493-1945
ALP 25

106' : 20429-1857
KUI 100AB

106' : 20435-1907
HU 270AB

106' : 20433-1701
RST3267

107' : 20429-1856
WOR 41

108' : 20558-1707
JAY 1AB

110' : 20439-1646
RST3268

113' : 20569-1731
OCC 351

117' : 20431-1919
AOT 94

118' : 20413-1736
HJ 2986



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20493-1802 HJ 3000

 
 
20h 49m 20.54s -18° 02' 08.8" P.A. 251.00 sep 33.4 mag 6.21,12.90 Sp K3III dist. 307.69 pc (1003.68 l.y.)
 
 
Coord 2000 20493-1802 Discov num HJ 3000 Comp Coord arcsec 2000 20 49 20.54 -18 02 08.8
Date first 1830 Date last 2013 Obs 5
Pa first 245 Pa last 251.2 P.A. Now (θ) 251.2°
Sep first 18.0 Sep last 33.41 Sep. Now (ρ) 33.41"
Mag pri 6.21 Mag sec 12.90 delta mag (ΔM) 6.69 Spectral class K3III (yellow-orange)
Pri motion ra +001 Sec motion ra -033
Pri motion dec -034 Sec motion dec +001
Notes
rPM=1.435
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Capricornus SAO 163910 HIP 102780 Tycho2 6348-01451-1
Gaia DR2 6858844694749343104 HD 198208 HR 7964 GC 29023
BD BD-18 5783 FK5 3663 Distance 307.69 Distance ly 1003.68
 
 
WDS 20493-1802 HJ 3000 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20493-1802 HJ 3000 1998 3 250 33.5 6.21 12.90 K3III D 204920.54-180208.8
20493-1802 HJ 3000 1999 4 250 33.4 6.21 12.90 K3III D 204920.54-180208.8
20493-1802 HJ 3000 2013 5 251 33.4 6.21 12.90 K3III 204920.54-180208.8

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

 
 
WDS 20493-1802 HJ 3000 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20493-1802 HJ 3000 : MEASURES
 
 
No records found.

 
 
WDS 20493-1802 : VIRTUAL EYEPIECE
 
 

20493-1802 HJ 3000A mag 6.21 Sp K3III 20493-1802 HJ 3000B sep 31.9 P.A. 250.30 mag 12.9 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 20493-1802 : ALADIN DSS IMAGE @ 20h 49m 20.54s -18° 02' 08.8"
 
 
 
 
WDS 20493-1802 HJ 3000 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20493-1802 HJ 3000 distance=1' 20484-1812 OCC9211EF distance=17' 20484-1812 S 763AB distance=17' 20484-1812 S 763AC distance=17' 20484-1812 S 763CD distance=23' 20474-1837 HJ 2995 distance=45' 20509-1851 GWP3005 distance=55' 20452-1809 GWP2992 distance=60' 20533-1719 HLD 42 distance=71' 20522-1904 I 667 distance=75' 20468-1655 ARN 110 distance=77' 20452-1857 ARA 803 distance=81' 20464-1653 HU 271 distance=81' 20537-1711 GWP3014 distance=81' 20494-1638 RST3269 distance=85' 20465-1642 SKI 11 distance=90' 20429-1757 TDT2493Aa,Ab distance=92' 20429-1757 ARA 499AB distance=92' 20427-1807 OCC 603 distance=96' 20519-1631 HJ 3001 distance=99' 20550-1705 SKF2092 distance=100' 20493-1945 ALP 25 distance=103' 20429-1857 KUI 100AB distance=106' 20429-1857 KUI 100AC distance=106' 20429-1857 KUI 100AD distance=106' 20435-1907 HU 270AB distance=106' 20435-1907 B 2890AC distance=106' 20435-1907 AOT 95AD distance=106' 20433-1701 RST3267 distance=106' 20429-1856 WOR 41 distance=107' 20558-1707 JAY 1AB distance=108' 20558-1707 TOK 343AC distance=108' 20558-1707 JAY 2CD distance=109' 20439-1646 RST3268 distance=110' 20569-1731 OCC 351 distance=113' 20431-1919 AOT 94 distance=117' 20413-1736 HJ 2986 distance=118' 20434-1929 HLD 40AB distance=121' 20434-1929 HLD 40AC distance=121' 20434-1929 HLD 40AD distance=121' 20578-1749 DVG 47 distance=122' 20526-1609 SPF 2 distance=122' 20434-1929 HLD 40CD distance=123' 20528-1610 BU 154 distance=123' 20409-1831 AOT 93 distance=124' 20410-1723 BU 1209 distance=127' 20569-1913 ARA 804 distance=129' 20512-2010 BHA 41 distance=130' 20557-1625 DAM 219 distance=133' 20430-1942 ARA1214 distance=134' 20399-1817 LDS4853 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 20493-1802 HJ 3000 251 33.4 1
Show 20484-1812 OCC9211 EF 46 0.6 17
Show 20484-1812 S 763 AB 293 15.8 17
Show 20484-1812 S 763 AC 177 542.3 17
Show 20484-1812 S 763 CD 333 9.1 23
Show 20474-1837 HJ 2995 283 29.0 45
Show 20509-1851 GWP3005 351 7.4 55
Show 20452-1809 GWP2992 114 100.8 60
Show 20533-1719 HLD 42 44 1.3 71
Show 20522-1904 I 667 342 2.7 75
Show 20468-1655 ARN 110 90 59.4 77
Show 20452-1857 ARA 803 123 12.1 81
Show 20464-1653 HU 271 100 0.3 81
Show 20537-1711 GWP3014 264 9.5 81
Show 20494-1638 RST3269 71 2.1 85
Show 20465-1642 SKI 11 289 3.9 90
Show 20429-1757 TDT2493 Aa,Ab 261 0.7 92
Show 20429-1757 ARA 499 AB 172 14.1 92
Show 20427-1807 OCC 603 -1 0.5 96
Show 20519-1631 HJ 3001 241 6.6 99
Show 20550-1705 SKF2092 68 8.3 100
Show 20493-1945 ALP 25 163 21.1 103
Show 20429-1857 KUI 100 AB 323 81.4 106
Show 20429-1857 KUI 100 AC 318 74.6 106
Show 20429-1857 KUI 100 AD 305 70.3 106
Show 20435-1907 HU 270 AB 85 1.8 106
Show 20435-1907 B 2890 AC 32 4.8 106
Show 20435-1907 AOT 95 AD 127 38.7 106
Show 20433-1701 RST3267 217 1.4 106
Show 20429-1856 WOR 41 261 3.1 107
Show 20558-1707 JAY 1 AB 324 1.1 108
Show 20558-1707 TOK 343 AC 138 324.9 108
Show 20558-1707 JAY 2 CD 141 2.2 109
Show 20439-1646 RST3268 119 1.7 110
Show 20569-1731 OCC 351 -1 0.2 113
Show 20431-1919 AOT 94 140 10.9 117
Show 20413-1736 HJ 2986 185 18.3 118
Show 20434-1929 HLD 40 AB 356 5.2 121
Show 20434-1929 HLD 40 AC 258 144.2 121
Show 20434-1929 HLD 40 AD 255 145.6 121
Show 20578-1749 DVG 47 343 41.2 122
Show 20526-1609 SPF 2 124 0.1 122
Show 20434-1929 HLD 40 CD 188 4.5 123
Show 20528-1610 BU 154 61 3.0 123
Show 20409-1831 AOT 93 146 19.8 124
Show 20410-1723 BU 1209 297 0.4 127
Show 20569-1913 ARA 804 71 17.0 129
Show 20512-2010 BHA 41 64 4.5 130
Show 20557-1625 DAM 219 117 8.2 133
Show 20430-1942 ARA1214 38 3.7 134
Show 20399-1817 LDS4853 39 207.9 134

 
 
WDS 20493-1802 : COMPONENTS
 
 
  A
B pa=250.3°
sep=31.94"
 
 
20493-1802 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204920.54-180208.8 Mag 6.21 Spectral class K3III (yellow-orange)
PmRA 1.00 PmDE -34.0 SAO 163910 HIP 102780
Tycho2 6348-01451-1 HD 198208 HR 7964 GC 29023
BD BD-18 5783 FK5 3663
Tycho2
Tycho2 6348-01451-1 Pflag RAmdeg 312.33559368 DEmdeg -18.03584941
PmRA 1.4 PmDE -32.8 E RAmdeg 4 E DEmdeg 5
E pmRA 0.8 E pmDE 0.8 EpRAm 1991.16 EpDEm 1990.78
Num 23 Q RAmdeg 1.0 Q DEmdeg 0.8 Q pmRA 0.9
Q pmDE 0.8 BTmag 8.037 E BTmag 0.017 VTmag 6.356
E VTmag 0.010 Prox 999 TYC T HIP 102780
CCDM RAdeg 312.33559000 DEdeg -18.03577250 EpRA 1990 1.79
EpDE 1990 1.53 E RAdeg 4.3 E DEdeg 5.0 Posflg
Corr -0.2
SAO
SAO 163910 DelFlag RA1950 PmRA1950 0.0001
DE1950 PmDE1950 -0.034 Vmag 6.4 SpType K0
Double code Source 70 CatNum 29023 DM BD-18 5783
DMcomp BDsup HD 198208 M HD 0
GC 29023 RA1950rad 5.43891783 DE1950rad -0.31802891 PmRA2000 0.0002
PmDE2000 -0.036
Hipparcos
Catalog H HIP 102780 Proxy RAhms 20 49 20.54
DEdms -18 02 08.8 Vmag 6.2 VarFlag R Vmag H
RAdeg 312.336 DEdeg -18.0358 AstroRef Plx 2.9
CCDM 20493-1802 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 198208 BD BD-18 5783
CD CP Dm number -18 5783 VIred 1.36
SpType K3III R SpType Coord arcsec 2000 204920.54-180208.8
Hipparcos 2
HIP 102780 Sn 5 So 0 Nc 1
RArad 5.4512844481 DErad -0.3147836347 Plx 3.25 PmRA 1.32
PmDE -33.91 E RArad 0.4 E DErad 0.25 E Plx 0.52
E pmRA 0.52 E pmDE 0.53 Hpmag 6.3405 E Hpmag 0.0006
SHp 0.006 VA 0 BV 1.402 E BV 0.009
VI 1.38
CCDM
Ccdm 20493-1802 RComp Comp A Note1
Note2 Discov num DRAs 2.58 DDEs -8.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.4 Sp K0 PmNote *
PmRA 7 PmDE -23 Dm number -18 5783 Cat1 BD
Name2 163910 Cat2 SAO HD 198208 M HD
ADS BDS B10530 M ADS BDS N IDS IDS 20436S1825A
HIC 102780
 
 
20493-1802 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204918.43-180219.6 Mag 12.9 PmRA -33.00
PmDE 1.0 Calc delta mag 6.69 Calc coord yes
CCDM
Ccdm 20493-1802 RComp Comp B Note1
Note2 Discov num HJ 3000 DRAs DDEs
R dRAs Year 1905 Theta 244 Rho 31.6
Obs 1 Vmag 12.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10530 M ADS BDS N IDS IDS 20436S1825B
HIC