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Doubles in session


Current system
03187-1834
HJ 3565
HD 20631


Nearby doubles
25' : 03204-1835
UC 987

32' : 03181-1904
I 341AB

42' : 03200-1911
UC 985

43' : 03158-1822
B 1929

45' : 03214-1852
LDS5421

51' : 03180-1744
ARA 321

61' : 03161-1921
LSC 24

68' : 03199-1728
RST2301

69' : 03207-1731
RST2302

75' : 03138-1806
KPP1521

76' : 03151-1739
TVB 47

83' : 03217-1943
RST2304

88' : 03168-1956
HJ 3561

88' : 03149-1723
LDS5419AB

94' : 03142-1942
TDS2490

94' : 03246-1915
RST2307

97' : 03203-2007
LDS3480

97' : 03132-1936
DON 46

98' : 03118-1832
TDS2473

101' : 03256-1855
GWP 468

103' : 03163-2010
ARA 834

108' : 03240-1718
A 2908

109' : 03262-1817
GWP 469

115' : 03217-2019
HJ 3570

124' : 03202-1632
GWP 452

124' : 03241-1657
RST2306



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.

03187-1834 HJ 3565 (HD 20631)

 
 
03h 18m 41.14s -18° 33' 35.2" P.A. 122.00 sep 8.0 mag 5.88,8.17 Sp F0IV dist. 36.97 pc (120.6 l.y.)
 
 
Coord 2000 03187-1834 Discov num HJ 3565 Comp Coord arcsec 2000 03 18 41.14 -18 33 35.2
Date first 1835 Date last 2016 Obs 53
Pa first 110 Pa last 121.7 P.A. Now (θ) 121.7°
Sep first 5.8 Sep last 7.967 Sep. Now (ρ) 7.967"
Mag pri 5.88 Mag sec 8.17 delta mag (ΔM) 2.29 Spectral class F0IV (yellow-white)
Pri motion ra +125 Sec motion ra +133
Pri motion dec -063 Sec motion dec -077
Notes N (See Notes)
rPM=0.105 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 20631 Constellation Eridanus SAO 148897 HIP 15411
Tycho2 5875-01138-1 Gaia DR2 5105133853288251392 HD 20631 HR 997
GC 3959 ADS 2465 BD BD-19 651 Distance 36.97
Distance ly 120.6
 
 
WDS 03187-1834 HJ 3565 (HD 20631) : NOTES
 
 
discov_num notes refcode
HJ 3565 A is a spectroscopic binary.
 
 
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
03187-1834 HJ 3565 2006 42 121 8.1 5.88 8.17 F0IV NLD 031841.14-183335.2
03187-1834 HJ 3565 2008 43 122 8.0 5.88 8.17 F0IV NLD 031841.14-183335.2
03187-1834 HJ 3565 2010 45 121 8.0 5.88 8.17 F0IV NLD 031841.14-183335.2
03187-1834 HJ 3565 2013 48 122 7.8 5.88 8.17 F0IV NL 031841.14-183335.2
03187-1834 HJ 3565 2015 50 122 8.0 5.88 8.17 F0IV NL 031841.14-183335.2
03187-1834 HJ 3565 2016 53 122 8.0 5.88 8.17 F0IV N 031841.14-183335.2

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

 
 
WDS 03187-1834 HJ 3565 (HD 20631) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 03187-1834 HJ 3565 (HD 20631) : MEASURES
 
 
No records found.

 
 
WDS 03187-1834 (HD 20631) : VIRTUAL EYEPIECE
 
 

03187-1834 HJ 3565A mag 5.88 Sp F0IV 03187-1834 HJ 3565B sep 7.7 P.A. 123.10 mag 8.17 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 03187-1834 (HD 20631) : ALADIN DSS IMAGE @ 03h 18m 41.14s -18° 33' 35.2"
 
 
 
 
WDS 03187-1834 HJ 3565 (HD 20631) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

03187-1834 HJ 3565 distance=0' 03204-1835 UC 987 distance=25' 03181-1904 I 341AB distance=32' 03181-1904 I 341AC distance=32' 03200-1911 UC 985 distance=42' 03158-1822 B 1929 distance=43' 03214-1852 LDS5421 distance=45' 03180-1744 ARA 321 distance=51' 03161-1921 LSC 24 distance=61' 03199-1728 RST2301 distance=68' 03207-1731 RST2302 distance=69' 03138-1806 KPP1521 distance=75' 03151-1739 TVB 47 distance=76' 03217-1943 RST2304 distance=83' 03168-1956 HJ 3561 distance=88' 03149-1723 LDS5419AB distance=88' 03149-1723 LDS5419Aa,Ab distance=88' 03142-1942 TDS2490 distance=94' 03246-1915 RST2307 distance=94' 03203-2007 LDS3480 distance=97' 03132-1936 DON 46 distance=97' 03118-1832 TDS2473 distance=98' 03256-1855 GWP 468 distance=101' 03163-2010 ARA 834 distance=103' 03240-1718 A 2908 distance=108' 03262-1817 GWP 469 distance=109' 03217-2019 HJ 3570 distance=115' 03202-1632 GWP 452 distance=124' 03241-1657 RST2306 distance=124' 03220-1636 LDS3485 distance=127' 03130-1656 TDS2480 distance=127' 03155-1633 YSC 176 distance=129' 03172-2041 SKF 422 distance=130' 03152-2037 DON 49 distance=133' 03262-1710 LDS5425 distance=136' 03266-1718 A 2910 distance=137' 03189-2054 ARA1266 distance=141' 03107-2007 CBL 120 distance=147' 03281-1945 SKF2172 distance=152' 03105-2012 SKF2169 distance=153' 03190-1549 GWP 448 distance=165' 03289-1959 I 720AB distance=168' 03289-1959 I 720BC distance=168' 03305-1752 B 2517BC distance=174' 03305-1752 B 2517AB distance=174' 03140-2115 BRT 299 distance=174' 03307-1926 HDS 441 distance=178' 03270-2047 CLZ 13 distance=178' 03195-2145 JC 1Da,Db distance=192' 03195-2145 JC 1AB distance=193' 03195-2145 JC 1AC distance=193' 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 03187-1834 HJ 3565 122 8.0
Show 03204-1835 UC 987 235 11.4 25
Show 03181-1904 I 341 AB 160 4.1 32
Show 03181-1904 I 341 AC 94 52.9 32
Show 03200-1911 UC 985 49 24.2 42
Show 03158-1822 B 1929 223 1.4 43
Show 03214-1852 LDS5421 166 25.9 45
Show 03180-1744 ARA 321 67 8.0 51
Show 03161-1921 LSC 24 343 0.1 61
Show 03199-1728 RST2301 30 1.4 68
Show 03207-1731 RST2302 121 1.2 69
Show 03138-1806 KPP1521 33 11.4 75
Show 03151-1739 TVB 47 114 3.3 76
Show 03217-1943 RST2304 91 2.1 83
Show 03168-1956 HJ 3561 152 25.7 88
Show 03149-1723 LDS5419 AB 120 197.3 88
Show 03149-1723 LDS5419 Aa,Ab 351 2.3 88
Show 03142-1942 TDS2490 270 0.4 94
Show 03246-1915 RST2307 218 1.2 94
Show 03203-2007 LDS3480 30 27.2 97
Show 03132-1936 DON 46 339 5.0 97
Show 03118-1832 TDS2473 83 0.4 98
Show 03256-1855 GWP 468 199 50.0 101
Show 03163-2010 ARA 834 203 9.4 103
Show 03240-1718 A 2908 256 4.4 108
Show 03262-1817 GWP 469 224 77.2 109
Show 03217-2019 HJ 3570 256 34.0 115
Show 03202-1632 GWP 452 346 20.8 124
Show 03241-1657 RST2306 315 1.8 124
Show 03220-1636 LDS3485 231 10.5 127
Show 03130-1656 TDS2480 101 0.7 127
Show 03155-1633 YSC 176 274 0.8 129
Show 03172-2041 SKF 422 52 5.7 130
Show 03152-2037 DON 49 256 2.2 133
Show 03262-1710 LDS5425 2 13.0 136
Show 03266-1718 A 2910 278 2.3 137
Show 03189-2054 ARA1266 93 10.6 141
Show 03107-2007 CBL 120 314 59.8 147
Show 03281-1945 SKF2172 341 71.9 152
Show 03105-2012 SKF2169 162 81.9 153
Show 03190-1549 GWP 448 126 8.9 165
Show 03289-1959 I 720 AB 44 25.9 168
Show 03289-1959 I 720 BC 343 2.3 168
Show 03305-1752 B 2517 BC 13 2.0 174
Show 03305-1752 B 2517 AB 177 26.1 174
Show 03140-2115 BRT 299 54 5.0 174
Show 03307-1926 HDS 441 34 0.2 178
Show 03270-2047 CLZ 13 28 61.9 178
Show 03195-2145 JC 1 Da,Db 18 2.9 192
Show 03195-2145 JC 1 AB 290 5.8 193
Show 03195-2145 JC 1 AC 123 38.2 193

 
 
WDS 03187-1834 : COMPONENTS
 
 
  A
B pa=123.1°
sep=7.67"
 
 
03187-1834 A
 
 
Componente originario normalizzato AB Name HD 20631 Coord arcsec 2000 031841.14-183335.2 Mag 5.88
Spectral class F0IV (yellow-white) PmRA 125.00 PmDE -63.0 SAO 148897
HIP 15411 Tycho2 5875-01138-1 HD 20631 HR 997
GC 3959 BD BD-19 651
Tycho2
Tycho2 5875-01138-1 Pflag RAmdeg 49.67141886 DEmdeg -18.55978433
PmRA 109.5 PmDE -58.7 E RAmdeg 4 E DEmdeg 4
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.46 EpDEm 1991.34
Num 11 Q RAmdeg 8.5 Q DEmdeg 4.2 Q pmRA 8.1
Q pmDE 4.1 BTmag 6.235 E BTmag 0.014 VTmag 5.880
E VTmag 0.010 Prox 77 TYC T HIP 15411
CCDM A RAdeg 49.67115611 DEdeg -18.55964806 EpRA 1990 1.87
EpDE 1990 1.68 E RAdeg 3.6 E DEdeg 3.9 Posflg
Corr -0.4
SAO
SAO 148897 DelFlag RA1950 PmRA1950 0.0092
DE1950 PmDE1950 -0.051 Vmag 5.8 SpType F0
Double code Source 70 CatNum 3959 DM BD-19 651
DMcomp BDsup HD 20631 M HD 0
GC 3959 RA1950rad 0.85696386 DE1950rad -0.32707663 PmRA2000 0.0096
PmDE2000 -0.054
Hipparcos
Catalog H HIP 15411 Proxy H RAhms 03 18 41.07
DEdms -18 33 34.7 Vmag 5.72 VarFlag R Vmag G
RAdeg 49.6711 DEdeg -18.5596 AstroRef A Plx 27.33
CCDM 03187-1834 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 121 Rho 7.678 HD 20631 BD BD-19 651
CD CP Dm number -19 651 VIred 0.45
SpType F3V R SpType Coord arcsec 2000 031841.07-183334.7
Hipparcos 2
HIP 15411 Sn 17 So 3 Nc 2
RArad 0.86692485 DErad -0.3239268261 Plx 27.05 PmRA 125.78
PmDE -62.51 E RArad 0.57 E DErad 0.49 E Plx 0.65
E pmRA 0.67 E pmDE 0.61 Hpmag 5.8156 E Hpmag 0.0006
SHp 0.007 VA 0 BV 0.381 E BV 0.012
VI 0.45
CCDM
Ccdm 03187-1834 RComp Comp A Note1
Note2 Discov num DRAs -0.85 DDEs 25.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.8 Sp F0 PmNote *
PmRA 123 PmDE -58 Dm number -19 651 Cat1 BD
Name2 148897 Cat2 SAO HD 20631 M HD
ADS BDS A 2465 M ADS BDS N IDS IDS 03141S1855A
HIC 15411
 
 
03187-1834 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 031841.59-183339.4 Mag 8.17 PmRA 133.00
PmDE -77.0 Calc delta mag 2.29 Calc coord yes
CCDM
Ccdm 03187-1834 RComp Comp B Note1
Note2 Discov num HJ 3565 DRAs -0.39 DDEs 20.7
R dRAs 90 Year 1954 Theta 118 Rho 7.2
Obs 18 Vmag 9.2 Sp PmNote *
PmRA 133 PmDE -72 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 2465 M ADS BDS N IDS IDS 03141S1855B
HIC 15411