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Doubles in session


Current system
03121-6420
HJ 3562
HD 20271


Nearby doubles
29' : 03101-6355
HJ 3559AB

34' : 03110-6347
RST2298

49' : 03178-6349
B 1446

62' : 03126-6522
HDS 412

65' : 03155-6520
R 20AB

69' : 03163-6317
I 388

82' : 02595-6415
TOK 818

84' : 03177-6305
I 150

89' : 03249-6451
UC 1001

90' : 02584-6409
KPP 654

91' : 03137-6550
HJ 3566

100' : 03032-6300
UC 934

100' : 03149-6242
DAM1299

101' : 03143-6240
RST 65

104' : 02574-6341
SYU 5

108' : 03201-6247
HDS 416

108' : 02568-6343
YMG 4

109' : 03225-6547
HDS 421

111' : 03270-6330
HDS 432

112' : 02549-6426
UC 860

118' : 03182-6230
ALB 1AB

121' : 02536-6420
HJ 3542

122' : 02540-6454
TOK 470

127' : 02570-6302
RST 56

129' : 03312-6352
UC 1015

137' : 02581-6241
CVN 36



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.

03121-6420 HJ 3562 (HD 20271)

 
 
03h 12m 05.84s -64° 19' 57.4" P.A. 331.00 sep 34.4 mag 9.25,10.14 Sp F2/3V dist. 154.8 pc (504.96 l.y.)
 
 
Coord 2000 03121-6420 Discov num HJ 3562 Comp Coord arcsec 2000 03 12 05.84 -64 19 57.4
Date first 1836 Date last 2016 Obs 19
Pa first 329 Pa last 331.2 P.A. Now (θ) 331.2°
Sep first 48.4 Sep last 34.411 Sep. Now (ρ) 34.411"
Mag pri 9.25 Mag sec 10.14 delta mag (ΔM) 0.89 Spectral class F2/3V (yellow-white)
Pri motion ra -022 Sec motion ra -022
Pri motion dec -005 Sec motion dec -005
Notes N V (See Notes, Proper motion indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 20271 Constellation Horologium HIP 14877 Tycho2 8863-01456-1
Gaia DR2 4720376973377476352 HD 20271 CP CP-64 233 Distance 154.8
Distance ly 504.96
 
 
WDS 03121-6420 HJ 3562 (HD 20271) : NOTES
 
 
discov_num notes refcode
HJ 3562 B is CPD -64@231.
 
 
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
03121-6420 HJ 3562 1999 13 331 34.5 9.25 10.14 F2/3V N D 031205.84-641957.4
03121-6420 HJ 3562 2010 16 331 34.4 9.25 10.14 F2/3V N 031205.84-641957.4
03121-6420 HJ 3562 2015 17 331 34.4 9.25 10.14 F2/3V N W 031205.84-641957.4
03121-6420 HJ 3562 2016 19 331 34.4 9.25 10.14 F2/3V NV 031205.84-641957.4

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

 
 
WDS 03121-6420 HJ 3562 (HD 20271) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 03121-6420 HJ 3562 (HD 20271) : MEASURES
 
 
No records found.

 
 
WDS 03121-6420 (HD 20271) : VIRTUAL EYEPIECE
 
 

03121-6420 HJ 3562A mag 9.25 Sp F2/3V 03121-6420 HJ 3562B sep 31.0 P.A. 346.60 mag 10.14 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 03121-6420 (HD 20271) : ALADIN DSS IMAGE @ 03h 12m 05.84s -64° 19' 57.4"
 
 
 
 
WDS 03121-6420 HJ 3562 (HD 20271) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

03121-6420 HJ 3562 distance=1' 03152-6427 DUN 12A,BC distance=22' 03152-6427 RST 67BC distance=22' 03101-6355 FIN 361Aa,Ab distance=29' 03101-6355 HJ 3559AB distance=29' 03110-6347 RST2298 distance=34' 03178-6349 B 1446 distance=49' 03126-6522 HDS 412 distance=62' 03155-6520 R 20AB distance=65' 03155-6520 DAM 785AC distance=65' 03163-6317 I 388 distance=69' 02595-6415 TOK 818 distance=82' 03177-6305 I 150 distance=84' 03249-6451 UC 1001 distance=89' 02584-6409 KPP 654 distance=90' 03137-6550 HJ 3566 distance=91' 03032-6300 UC 934 distance=100' 03149-6242 DAM1299 distance=100' 03143-6240 RST 65 distance=101' 02574-6341 SYU 5 distance=104' 03201-6247 HDS 416 distance=108' 02568-6343 YMG 4 distance=108' 03225-6547 HDS 421 distance=109' 03270-6330 HDS 432 distance=111' 02549-6426 UC 860 distance=112' 03182-6230 BNU 2Aa,Ab distance=118' 03182-6230 ALB 1AB distance=118' 02536-6420 HJ 3542 distance=121' 02540-6454 TOK 470 distance=122' 02570-6302 RST 56 distance=127' 03312-6352 UC 1015 distance=129' 02581-6241 CVN 36 distance=137' 03042-6210 NSN 179 distance=141' 02544-6300 I 148 distance=143' 03294-6256 HJ 3580 distance=143' 03113-6145 RST5198 distance=156' 03261-6629 TRR 1 distance=156' 03180-6656 EHR 3 distance=160' 02543-6620 UC 847 distance=165' 03010-6703 KPP2789 distance=177' 03238-6132 JSP 46 distance=187' 03309-6200 TOK 190 distance=189' 03147-6730 R 21 distance=191' 03228-6730 KPP2033 distance=202' 03152-6755 DAM 784 distance=217' 03282-6113 DAM1304 distance=218' 03286-6108 TDS2557 distance=223' 02545-6108 UC 852 distance=227' 02554-6744 TDS2388 distance=228' 02554-6101 LDS 83 distance=231' 03144-6029 FIN 84 distance=232' 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 03121-6420 HJ 3562 331 34.4 1
Show 03152-6427 DUN 12 A,BC 105 19.2 22
Show 03152-6427 RST 67 BC 25 0.7 22
Show 03101-6355 FIN 361 Aa,Ab 75 0.2 29
Show 03101-6355 HJ 3559 AB 41 43.2 29
Show 03110-6347 RST2298 213 0.5 34
Show 03178-6349 B 1446 215 0.7 49
Show 03126-6522 HDS 412 155 0.1 62
Show 03155-6520 R 20 AB 117 49.1 65
Show 03155-6520 DAM 785 AC 82 40.7 65
Show 03163-6317 I 388 227 0.5 69
Show 02595-6415 TOK 818 245 0.5 82
Show 03177-6305 I 150 358 3.6 84
Show 03249-6451 UC 1001 251 48.1 89
Show 02584-6409 KPP 654 41 5.9 90
Show 03137-6550 HJ 3566 38 13.4 91
Show 03032-6300 UC 934 115 25.6 100
Show 03149-6242 DAM1299 247 0.9 100
Show 03143-6240 RST 65 36 2.2 101
Show 02574-6341 SYU 5 325 0.4 104
Show 03201-6247 HDS 416 42 0.3 108
Show 02568-6343 YMG 4 133 0.0 108
Show 03225-6547 HDS 421 34 0.3 109
Show 03270-6330 HDS 432 203 22.0 111
Show 02549-6426 UC 860 340 46.8 112
Show 03182-6230 BNU 2 Aa,Ab 11 0.0 118
Show 03182-6230 ALB 1 AB 217 309.1 118
Show 02536-6420 HJ 3542 141 12.5 121
Show 02540-6454 TOK 470 52 999.9 122
Show 02570-6302 RST 56 143 5.6 127
Show 03312-6352 UC 1015 162 11.7 129
Show 02581-6241 CVN 36 3 7.8 137
Show 03042-6210 NSN 179 233 2.8 141
Show 02544-6300 I 148 7 4.8 143
Show 03294-6256 HJ 3580 127 54.4 143
Show 03113-6145 RST5198 286 2.3 156
Show 03261-6629 TRR 1 107 16.0 156
Show 03180-6656 EHR 3 17 5.0 160
Show 02543-6620 UC 847 61 19.6 165
Show 03010-6703 KPP2789 26 1.7 177
Show 03238-6132 JSP 46 285 0.2 187
Show 03309-6200 TOK 190 30 0.1 189
Show 03147-6730 R 21 307 37.1 191
Show 03228-6730 KPP2033 82 16.2 202
Show 03152-6755 DAM 784 286 6.4 217
Show 03282-6113 DAM1304 291 1.9 218
Show 03286-6108 TDS2557 268 0.6 223
Show 02545-6108 UC 852 38 11.4 227
Show 02554-6744 TDS2388 108 0.4 228
Show 02554-6101 LDS 83 331 6.9 231
Show 03144-6029 FIN 84 133 0.9 232

 
 
WDS 03121-6420 : COMPONENTS
 
 
  A
B pa=346.6°
sep=31.00"
 
 
03121-6420 A
 
 
Componente originario normalizzato AB Name HD 20271 Coord arcsec 2000 031205.84-641957.4 Mag 9.25
Spectral class F2/3V (yellow-white) PmRA -22.00 PmDE -5.0 HIP 14884
Tycho2 8863-01456-1 HD 20271 CP CP-64 234
Tycho2
Tycho2 8863-01456-1 Pflag RAmdeg 48.02432914 DEmdeg -64.33261143
PmRA -22.1 PmDE -5.3 E RAmdeg 12 E DEmdeg 12
E pmRA 1.3 E pmDE 1.3 EpRAm 1988.56 EpDEm 1988.74
Num 11 Q RAmdeg 0.6 Q DEmdeg 0.5 Q pmRA 0.6
Q pmDE 0.5 BTmag 9.801 E BTmag 0.026 VTmag 9.250
E VTmag 0.020 Prox 344 TYC T HIP 14884
CCDM RAdeg 48.02444778 DEdeg -64.33259833 EpRA 1990 1.69
EpDE 1990 1.68 E RAdeg 13.0 E DEdeg 13.0 Posflg
Corr 0.0
Hipparcos
Catalog H HIP 14884 Proxy RAhms 03 12 05.87
DEdms -64 19 57.4 Vmag 9.21 VarFlag R Vmag H
RAdeg 48.0245 DEdeg -64.3326 AstroRef Plx 8.68
CCDM 03121-6420 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 20271 BD
CD CP CP-64 234 Dm number -64 234 VIred 0.66
SpType F2/F3V R SpType Coord arcsec 2000 031205.87-641957.4
Hipparcos 2
HIP 14884 Sn 5 So 0 Nc 1
RArad 0.8381849567 DErad -1.1228157198 Plx 8.37 PmRA -22.32
PmDE -5.92 E RArad 0.7 E DErad 0.75 E Plx 0.79
E pmRA 0.84 E pmDE 1.02 Hpmag 9.3357 E Hpmag 0.0027
SHp 0.021 VA 0 BV 0.441 E BV 0.071
VI 0.66
CCDM
Ccdm 03121-6420 RComp Comp A Note1
Note2 Discov num DRAs -0.03 DDEs 2.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.0 Sp F8 PmNote *
PmRA -11 PmDE -4 Dm number -64 234 Cat1 CPD
Name2 Cat2 HD 20271 M HD
ADS BDS M ADS BDS N IDS IDS 03104S6442A
HIC 14884
 
 
03121-6420 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 031204.73-641927.2 Mag 10.14 PmRA -22.00
PmDE -5.0 HIP 14877 Tycho2 8863-01188-1 CP CP-64 233
Calc delta mag 0.89 Calc coord yes
Tycho2
Tycho2 8863-01188-1 Pflag RAmdeg 48.01369376 DEmdeg -64.32423824
PmRA -21.6 PmDE -5.1 E RAmdeg 22 E DEmdeg 21
E pmRA 1.7 E pmDE 1.7 EpRAm 1985.54 EpDEm 1986.04
Num 6 Q RAmdeg 0.8 Q DEmdeg 0.7 Q pmRA 0.9
Q pmDE 0.6 BTmag 10.591 E BTmag 0.042 VTmag 10.136
E VTmag 0.037 Prox 344 TYC T HIP 14877
CCDM RAdeg 48.01381583 DEdeg -64.32422472 EpRA 1990 1.66
EpDE 1990 1.68 E RAdeg 24.7 E DEdeg 23.9 Posflg
Corr 0.0
Hipparcos
Catalog H HIP 14877 Proxy RAhms 03 12 03.32
DEdms -64 19 27.2 Vmag 9.94 VarFlag R Vmag H
RAdeg 48.0138 DEdeg -64.3242 AstroRef Plx 6.69
CCDM 03121-6420 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD BD
CD CP CP-64 233 Dm number -64 233 VIred 0.65
SpType F8 R SpType Coord arcsec 2000 031203.32-641927.2
Hipparcos 2
HIP 14877 Sn 5 So 0 Nc 1
RArad 0.8379993163 DErad -1.1226694934 Plx 6.46 PmRA -22.01
PmDE -4.87 E RArad 1.21 E DErad 1.27 E Plx 1.36
E pmRA 1.44 E pmDE 1.75 Hpmag 10.0621 E Hpmag 0.0034
SHp 0.027 VA 0 BV 0.58 E BV 0.107
VI 0.65
CCDM
Ccdm 03121-6420 RComp Comp B Note1
Note2 Discov num HJ 3562 DRAs -2.69 DDEs 32.8
R dRAs 10 Year 1836 Theta 330 Rho 34.3
Obs 4 Vmag 9.3 Sp PmNote *
PmRA -23 PmDE -11 Dm number -64 233 Cat1 CPD
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 03104S6442B
HIC 14877