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Current system
03439-7100
HJ 3603
HD 23981


Nearby doubles
20' : 03411-7046
HEI 634AB

24' : 03480-7048
HJ 3606

32' : 03375-7100
HEI 633

59' : 03448-7002
LFR 1

60' : 03322-7047
KPP3533

61' : 03519-7147
KPP2142

69' : 03533-7010
B 1933

71' : 03316-7139
TDS2561

73' : 03519-7202
B 1932

78' : 03302-7024
B 2084AB

83' : 03567-7156
KPP2084

92' : 04026-7109
GLI 25

94' : 03391-7231
NZO 4

94' : 03531-6939
HEI 636

99' : 03528-6933
DON 56

105' : 03415-6916
TDS2631

114' : 03578-6932
KPP3551AB

115' : 03367-6912
TVB 53

127' : 03382-6857
KPP2790

135' : 03276-7251
SKF 19

140' : 03425-7320
B 2565

145' : 03537-6844
UC 1084

156' : 03269-7315
UC 1007

158' : 03570-6838
CTI 630

171' : 03416-6810
KPP3537

182' : 03505-7359
UC 1075



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.

03439-7100 HJ 3603 (HD 23981)

 
 
03h 43m 53.95s -71° 00' 08.0" P.A. 89.00 sep 17.7 mag 9.77,11.00 Sp F7IV+G5V
 
 
Coord 2000 03439-7100 Discov num HJ 3603 Comp Coord arcsec 2000 03 43 53.95 -71 00 08.0
Date first 1834 Date last 2015 Obs 16
Pa first 76 Pa last 88.7 P.A. Now (θ) 88.7°
Sep first 22.0 Sep last 17.697 Sep. Now (ρ) 17.697"
Mag pri 9.77 Mag sec 11.00 delta mag (ΔM) 1.23 Spectral class F7IV+G5V (yellow-white/yellow)
Pri motion ra +018 Sec motion ra -002
Pri motion dec +011 Sec motion dec -003
Notes N Y (See Notes, Parallax indicates components are non-physical)
rPM=1.157
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 23981 Constellation Hydrus Tycho2 9155-01813-1 Gaia DR2 4666099302698425728
HD 23981 DM CP-71 218
 
 
WDS 03439-7100 HJ 3603 (HD 23981) : NOTES
 
 
discov_num notes refcode
HJ 3603 B is CPD-71@@218.
 
 
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
03439-7100 HJ 3603 1998 13 88 17.9 9.77 11.00 F5V N D 034353.95-710008.0
03439-7100 HJ 3603 2010 15 89 17.7 9.77 11.00 F7IV+G5V NY 034353.95-710008.0
03439-7100 HJ 3603 2015 16 89 17.7 9.77 11.00 F7IV+G5V NY 034353.95-710008.0

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

 
 
WDS 03439-7100 HJ 3603 (HD 23981) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 03439-7100 HJ 3603 (HD 23981) : MEASURES
 
 
No records found.

 
 
WDS 03439-7100 (HD 23981) : VIRTUAL EYEPIECE
 
 

03439-7100 HJ 3603A mag 9.77 Sp F7IV 03439-7100 HJ 3603B sep 5.8 P.A. 86.00 mag 11 Sp G5V 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 03439-7100 (HD 23981) : ALADIN DSS IMAGE @ 03h 43m 53.95s -71° 00' 08.0"
 
 
 
 
WDS 03439-7100 HJ 3603 (HD 23981) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

03439-7100 HJ 3603 distance=1' 03411-7046 HEI 634AB distance=20' 03411-7046 UC 1043AC distance=20' 03480-7048 HJ 3606 distance=24' 03375-7100 HEI 633 distance=32' 03448-7002 LFR 1 distance=59' 03322-7047 KPP3533 distance=60' 03519-7147 KPP2142 distance=61' 03533-7010 B 1933 distance=69' 03316-7139 TDS2561 distance=71' 03519-7202 B 1932 distance=73' 03302-7024 B 2084AB distance=78' 03302-7024 TOI 487AC distance=78' 03567-7156 KPP2084 distance=83' 04026-7109 GLI 25 distance=92' 03391-7231 NZO 4 distance=94' 03531-6939 HEI 636 distance=94' 03528-6933 DON 56 distance=99' 03415-6916 TDS2631 distance=105' 03578-6932 KPP3551AB distance=114' 03367-6912 TVB 53 distance=115' 03382-6857 KPP2790 distance=127' 03276-7251 SKF 19 distance=135' 03425-7320 B 2565 distance=140' 03537-6844 UC 1084 distance=145' 03269-7315 UC 1007 distance=156' 03570-6838 CTI 630 distance=158' 03416-6810 KPP3537 distance=171' 03505-7359 UC 1075 distance=182' 03249-6823 LDS 96 distance=187' 03443-6751 LDS 105 distance=188' 03532-7408 KPP 100 distance=193' 03351-6750 NZO 3 distance=196' 03255-6809 LDS 97 distance=197' 03335-6742 LDS 101AB distance=206' 03335-6742 BAU 13AC distance=206' 03514-6738 NSN 166 distance=206' 03514-6738 NSN 166AC distance=206' 03514-6738 NSN 166CB distance=207' 03325-6728 TDS2570 distance=221' 03333-6727 DON 53 distance=221' 03542-6725 HDS 489 distance=222' 03393-6721 BRT1964 distance=222' 03330-6725 TOK 79AB distance=223' 03586-7445 HJ 3624 distance=234' 03425-7508 UC 1049 distance=249' 03553-6658 UC 1088 distance=250' 03325-7507 KPP1453 distance=252' 03330-7508 HDS 450 distance=253' 03526-6649 HDS 485 distance=256' 03593-6656 LDS6173 distance=258' 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 03439-7100 HJ 3603 89 17.7 1
Show 03411-7046 HEI 634 AB 63 1.4 20
Show 03411-7046 UC 1043 AC 136 12.8 20
Show 03480-7048 HJ 3606 336 16.8 24
Show 03375-7100 HEI 633 150 2.3 32
Show 03448-7002 LFR 1 83 75.9 59
Show 03322-7047 KPP3533 70 2.1 60
Show 03519-7147 KPP2142 27 17.5 61
Show 03533-7010 B 1933 305 2.0 69
Show 03316-7139 TDS2561 86 2.4 71
Show 03519-7202 B 1932 94 0.1 73
Show 03302-7024 B 2084 AB 201 0.5 78
Show 03302-7024 TOI 487 AC 130 3.0 78
Show 03567-7156 KPP2084 193 16.8 83
Show 04026-7109 GLI 25 217 39.9 92
Show 03391-7231 NZO 4 71 9.5 94
Show 03531-6939 HEI 636 168 0.1 94
Show 03528-6933 DON 56 32 1.0 99
Show 03415-6916 TDS2631 213 0.4 105
Show 03578-6932 KPP3551 AB 348 21.0 114
Show 03367-6912 TVB 53 299 16.2 115
Show 03382-6857 KPP2790 357 1.6 127
Show 03276-7251 SKF 19 37 28.8 135
Show 03425-7320 B 2565 245 13.9 140
Show 03537-6844 UC 1084 226 13.5 145
Show 03269-7315 UC 1007 338 22.3 156
Show 03570-6838 CTI 630 147 11.1 158
Show 03416-6810 KPP3537 172 2.1 171
Show 03505-7359 UC 1075 244 19.1 182
Show 03249-6823 LDS 96 318 664.8 187
Show 03443-6751 LDS 105 134 58.6 188
Show 03532-7408 KPP 100 226 3.9 193
Show 03351-6750 NZO 3 242 4.9 196
Show 03255-6809 LDS 97 46 282.8 197
Show 03335-6742 LDS 101 AB 349 11.5 206
Show 03335-6742 BAU 13 AC 29 14.3 206
Show 03514-6738 NSN 166 57 1.1 206
Show 03514-6738 NSN 166 AC 6 51.1 206
Show 03514-6738 NSN 166 CB 185 50.4 207
Show 03325-6728 TDS2570 148 7.3 221
Show 03333-6727 DON 53 310 0.4 221
Show 03542-6725 HDS 489 206 0.3 222
Show 03393-6721 BRT1964 28 3.6 222
Show 03330-6725 TOK 79 AB 33 9.2 223
Show 03586-7445 HJ 3624 29 24.3 234
Show 03425-7508 UC 1049 81 87.8 249
Show 03553-6658 UC 1088 51 17.0 250
Show 03325-7507 KPP1453 291 10.9 252
Show 03330-7508 HDS 450 267 0.3 253
Show 03526-6649 HDS 485 57 0.1 256
Show 03593-6656 LDS6173 171 8.1 258

 
 
WDS 03439-7100 : COMPONENTS
 
 
  A
B pa=86.0°
sep=5.77"
 
 
03439-7100 A
 
 
Componente originario normalizzato AB Name HD 23981 Coord arcsec 2000 034353.95-710008.0 Mag 9.77
Spectral class F7IV (yellow-white) PmRA 18.00 PmDE 11.0 Tycho2 9155-01813-1
HD 23981 DM CP-71 217
Tycho2
Tycho2 9155-01813-1 Pflag RAmdeg 55.97477518 DEmdeg -71.00221074
PmRA 8.3 PmDE 11.8 E RAmdeg 14 E DEmdeg 14
E pmRA 1.5 E pmDE 1.8 EpRAm 1988.79 EpDEm 1990.73
Num 7 Q RAmdeg 2.5 Q DEmdeg 1.3 Q pmRA 2.4
Q pmDE 1.3 BTmag 10.286 E BTmag 0.026 VTmag 9.774
E VTmag 0.023 Prox 179 TYC T HIP
CCDM RAdeg 55.97472333 DEdeg -71.00223806 EpRA 1990 1.74
EpDE 1990 1.71 E RAdeg 14.7 E DEdeg 14.3 Posflg
Corr 0.0
CCDM
Ccdm 03439-7100 RComp Comp A Note1
Note2 Discov num DRAs 0.15 DDEs -5.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.5 Sp F8 PmNote *
PmRA 23 PmDE 48 Dm number -71 217 Cat1 CPD
Name2 Cat2 HD 23981 M HD
ADS BDS M ADS BDS N IDS IDS 03442S7119A
HIC
 
 
03439-7100 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 034355.13-710007.6 Mag 11 Spectral class G5V (yellow)
PmRA -2.00 PmDE -3.0 DM CP-71 218 Calc delta mag 1.23
Calc coord yes
CCDM
Ccdm 03439-7100 RComp Comp B Note1
Note2 Discov num HJ 3603 DRAs DDEs
R dRAs Year 1916 Theta 082 Rho 19.1
Obs 4 Vmag 10.0 Sp PmNote
PmRA PmDE Dm number -71 218 Cat1 CPD
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 03442S7119B
HIC