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Doubles in session


Current system
02430-2017
HJ 3524
HD 16994


Nearby doubles
40' : 02456-2004
DON 40

43' : 02401-2029
BRT 298

48' : 02397-2026
HDS 346

51' : 02432-2108
LDS3420

54' : 02439-1925
LDS5392

70' : 02441-2125
KPP2029

74' : 02404-1914
RST2285

74' : 02395-2113
DAM1293

75' : 02396-2115
B 1922

82' : 02445-1859
GWP 362

88' : 02476-2115
RST2287

95' : 02461-1853
UC 801

97' : 02498-2015
HJ 3533

99' : 02368-1929
ARA 523

112' : 02362-1919
ARA 522

113' : 02489-1902
B 1924

114' : 02420-1824
GWP 354

119' : 02360-2124
HJ 3511

122' : 02510-2100
SEE 20
Angetenar

134' : 02512-2125
I 461

136' : 02476-1819
LV 2

138' : 02518-2117
SEE 21

143' : 02514-2139
DON 43

144' : 02437-2240
RST2286

144' : 02333-1933
GWP 338AB

144' : 02532-2014
ARA 833



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.

02430-2017 HJ 3524 (HD 16994)

 
 
02h 42m 57.44s -20° 17' 21.2" P.A. 166.00 sep 19.8 mag 7.67,9.16 Sp G0 dist. 181.16 pc (590.94 l.y.)
 
 
Coord 2000 02430-2017 Discov num HJ 3524 Comp Coord arcsec 2000 02 42 57.44 -20 17 21.2
Date first 1836 Date last 2015 Obs 26
Pa first 133 Pa last 166.2 P.A. Now (θ) 166.2°
Sep first 21.0 Sep last 19.755 Sep. Now (ρ) 19.755"
Mag pri 7.67 Mag sec 9.16 delta mag (ΔM) 1.49 Spectral class G0 (yellow)
Pri motion ra +067 Sec motion ra +008
Pri motion dec +022 Sec motion dec -008
Notes
rPM=0.939
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 16994 Constellation Cetus SAO 167995 HIP 12681
Tycho2 5869-00922-1 Gaia DR2 5128505411749553536 HD 16994 BD BD-20 506
Distance 181.16 Distance ly 590.94
 
 
WDS 02430-2017 HJ 3524 (HD 16994) : 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
02430-2017 HJ 3524 2003 21 164 19.7 7.67 9.16 G0 D 024257.44-201721.2
02430-2017 HJ 3524 2011 23 164 19.8 7.67 9.16 G0 D 024257.44-201721.2
02430-2017 HJ 3524 2015 26 166 19.8 7.67 9.16 G0 024257.44-201721.2

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

 
 
WDS 02430-2017 HJ 3524 (HD 16994) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 02430-2017 HJ 3524 (HD 16994) : MEASURES
 
 
No records found.

 
 
WDS 02430-2017 (HD 16994) : VIRTUAL EYEPIECE
 
 

02430-2017 HJ 3524A mag 7.67 Sp G0 02430-2017 HJ 3524B sep 19.7 P.A. 167.00 mag 9.16 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 02430-2017 (HD 16994) : ALADIN DSS IMAGE @ 02h 42m 57.44s -20° 17' 21.2"
 
 
 
 
WDS 02430-2017 HJ 3524 (HD 16994) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

02430-2017 HJ 3524 distance=0' 02456-2004 DON 40 distance=40' 02401-2029 BRT 298 distance=43' 02397-2026 HDS 346 distance=48' 02432-2108 LDS3420 distance=51' 02439-1925 LDS5392 distance=54' 02441-2125 KPP2029 distance=70' 02404-1914 RST2285 distance=74' 02395-2113 DAM1293 distance=74' 02396-2115 B 1922 distance=75' 02445-1859 GWP 362 distance=82' 02476-2115 RST2287 distance=88' 02461-1853 UC 801 distance=95' 02498-2015 HJ 3533 distance=97' 02368-1929 ARA 523 distance=99' 02362-1919 ARA 522 distance=112' 02489-1902 B 1924 distance=113' 02420-1824 GWP 354 distance=114' 02360-2124 HJ 3511 distance=119' 02510-2100 SEE 20 (Angetenar) distance=122' 02512-2125 I 461 distance=134' 02476-1819 LV 2 distance=136' 02518-2117 SEE 21 distance=138' 02514-2139 DON 43 distance=143' 02437-2240 RST2286 distance=144' 02333-1933 GWP 338AB distance=144' 02333-1933 GWP 338AC distance=144' 02532-2014 ARA 833 distance=144' 02472-2229 SKF2167AB distance=145' 02472-2229 CVN 71AC distance=145' 02501-2210 DON 42 distance=151' 02482-2232 RST2288 distance=154' 02320-1955 BRT 297 distance=154' 02464-2250 SKF2166 distance=160' 02544-2007 HDS 371 distance=162' 02314-2055 UC 749 distance=167' 02535-1859 LDS5400 distance=167' 02315-2112 KPP2869 distance=170' 02546-2109 KPP1712 distance=172' 02324-1849 GWP 336 distance=174' 02513-2226 LDS3433 distance=174' 02357-2239 UC 762 distance=175' 02332-2207 DON 35 distance=176' 02375-2255 RST2284 distance=176' 02474-1733 GWP 369AB distance=176' 02474-1733 SKF2168AC distance=176' 02340-1812 BRG 13 distance=179' 02331-1821 HJ 3505 distance=182' 02301-2053 B 1920 distance=185' 02314-1840 KPP1702 distance=191' 02316-2204 RSS 58 distance=192' 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 02430-2017 HJ 3524 166 19.8
Show 02456-2004 DON 40 283 0.2 40
Show 02401-2029 BRT 298 314 4.0 43
Show 02397-2026 HDS 346 221 0.8 48
Show 02432-2108 LDS3420 292 3.3 51
Show 02439-1925 LDS5392 223 180.6 54
Show 02441-2125 KPP2029 287 16.2 70
Show 02404-1914 RST2285 330 2.7 74
Show 02395-2113 DAM1293 193 3.3 74
Show 02396-2115 B 1922 246 1.4 75
Show 02445-1859 GWP 362 298 159.3 82
Show 02476-2115 RST2287 60 0.7 88
Show 02461-1853 UC 801 86 28.0 95
Show 02498-2015 HJ 3533 267 37.8 97
Show 02368-1929 ARA 523 141 2.0 99
Show 02362-1919 ARA 522 106 9.4 112
Show 02489-1902 B 1924 236 0.4 113
Show 02420-1824 GWP 354 275 34.3 114
Show 02360-2124 HJ 3511 98 14.7 119
Show Angetenar 02510-2100 SEE 20 127 49.6 122
Show 02512-2125 I 461 330 3.2 134
Show 02476-1819 LV 2 26 2.9 136
Show 02518-2117 SEE 21 323 0.1 138
Show 02514-2139 DON 43 287 0.2 143
Show 02437-2240 RST2286 1 0.2 144
Show 02333-1933 GWP 338 AB 60 52.4 144
Show 02333-1933 GWP 338 AC 173 0.9 144
Show 02532-2014 ARA 833 358 11.1 144
Show 02472-2229 SKF2167 AB 213 69.4 145
Show 02472-2229 CVN 71 AC 347 1.7 145
Show 02501-2210 DON 42 187 1.3 151
Show 02482-2232 RST2288 47 1.2 154
Show 02320-1955 BRT 297 277 3.3 154
Show 02464-2250 SKF2166 272 29.5 160
Show 02544-2007 HDS 371 347 0.1 162
Show 02314-2055 UC 749 162 42.1 167
Show 02535-1859 LDS5400 156 308.4 167
Show 02315-2112 KPP2869 356 7.0 170
Show 02546-2109 KPP1712 96 13.2 172
Show 02324-1849 GWP 336 70 11.2 174
Show 02513-2226 LDS3433 73 15.7 174
Show 02357-2239 UC 762 127 20.4 175
Show 02332-2207 DON 35 307 1.6 176
Show 02375-2255 RST2284 132 1.3 176
Show 02474-1733 GWP 369 AB 352 69.8 176
Show 02474-1733 SKF2168 AC 284 4.7 176
Show 02340-1812 BRG 13 5 0.9 179
Show 02331-1821 HJ 3505 20 15.4 182
Show 02301-2053 B 1920 222 0.4 185
Show 02314-1840 KPP1702 19 13.1 191
Show 02316-2204 RSS 58 125 10.0 192

 
 
WDS 02430-2017 : COMPONENTS
 
 
  A
B pa=167.0°
sep=19.69"
 
 
02430-2017 A
 
 
Componente originario normalizzato AB Name HD 16994 Coord arcsec 2000 024257.44-201721.2 Mag 7.67
Spectral class G0 (yellow) PmRA 67.00 PmDE 22.0 SAO 167995
HIP 12681 Tycho2 5869-00922-1 HD 16994 BD BD-20 506
Tycho2
Tycho2 5869-00922-1 Pflag RAmdeg 40.73934701 DEmdeg -20.28922658
PmRA 70.1 PmDE 20.1 E RAmdeg 6 E DEmdeg 5
E pmRA 1.5 E pmDE 1.4 EpRAm 1990.93 EpDEm 1991.07
Num 8 Q RAmdeg 1.2 Q DEmdeg 0.8 Q pmRA 1.2
Q pmDE 0.9 BTmag 8.810 E BTmag 0.017 VTmag 7.668
E VTmag 0.011 Prox 197 TYC T HIP 12681
CCDM A RAdeg 40.73916833 DEdeg -20.28927417 EpRA 1990 1.39
EpDE 1990 1.46 E RAdeg 5.5 E DEdeg 5.3 Posflg
Corr -0.4
SAO
SAO 167995 DelFlag RA1950 PmRA1950 0.0078
DE1950 PmDE1950 0.032 Vmag 7.4 SpType G0
Double code Source 23 CatNum 726 DM BD-20 506
DMcomp BDsup HD 16994 M HD 0
GC RA1950rad 0.7010126 DE1950rad -0.35781582 PmRA2000 0.0081
PmDE2000 0.029
Hipparcos
Catalog H HIP 12681 Proxy RAhms 02 42 57.40
DEdms -20 17 21.4 Vmag 7.54 VarFlag R Vmag H
RAdeg 40.7392 DEdeg -20.2893 AstroRef A Plx 3.81
CCDM 02430-2017 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual A M HIP
Theta Rho HD 16994 BD BD-20 506
CD CP Dm number -20 506 VIred 0.95
SpType K0III R SpType Coord arcsec 2000 024257.40-201721.4
Hipparcos 2
HIP 12681 Sn 95 So 3 Nc 1
RArad 0.7110326026 DErad -0.3541146476 Plx 5.52 PmRA 64.66
PmDE 18.89 E RArad 1.03 E DErad 1.19 E Plx 1.47
E pmRA 1.18 E pmDE 1.39 Hpmag 7.7047 E Hpmag 0.0144
SHp 0.052 VA 0 BV 0.983 E BV 0.012
VI 0.96
CCDM
Ccdm 02430-2017 RComp Comp A Note1
Note2 Discov num DRAs -2.37 DDEs -20.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.5 Sp G0 PmNote *
PmRA 109 PmDE 32 Dm number -20 506 Cat1 BD
Name2 167995 Cat2 SAO HD 16994 M HD
ADS BDS A 2079 M ADS BDS N IDS IDS 02384S2043A
HIC 12681
 
 
02430-2017 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 024257.75-201740.4 Mag 9.16 PmRA 8.00
PmDE -8.0 HIP 12683 Tycho2 5869-00926-1 Calc delta mag 1.49
Calc coord yes
Tycho2
Tycho2 5869-00926-1 Pflag RAmdeg 40.74110026 DEmdeg -20.29446273
PmRA 21.5 PmDE -6.3 E RAmdeg 15 E DEmdeg 15
E pmRA 2.6 E pmDE 2.6 EpRAm 1991.07 EpDEm 1991.01
Num 3 Q RAmdeg 0.3 Q DEmdeg 2.0 Q pmRA 0.2
Q pmDE 2.0 BTmag 10.450 E BTmag 0.039 VTmag 9.158
E VTmag 0.020 Prox 197 TYC T HIP 12683
CCDM B RAdeg 40.74104639 DEdeg -20.29444778 EpRA 1990 1.53
EpDE 1990 1.46 E RAdeg 15.2 E DEdeg 15.2 Posflg
Corr -0.3
Hipparcos
Catalog H HIP 12683 Proxy RAhms 02 42 57.83
DEdms -20 17 39.9 Vmag 9.85 VarFlag R Vmag H
RAdeg 40.7409 DEdeg -20.2944 AstroRef B Plx 10.31
CCDM 02430-2017 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual A M HIP
Theta Rho HD BD
CD CP Dm number VIred 0.86
SpType R SpType Coord arcsec 2000 024257.83-201739.9
Hipparcos 2
HIP 12683 Sn 95 So 3 Nc 1
RArad 0.7110636407 DErad -0.3542044814 Plx 21.34 PmRA 31.64
PmDE -4.65 E RArad 10.43 E DErad 9.11 E Plx 15.16
E pmRA 11.96 E pmDE 11.76 Hpmag 9.7496 E Hpmag 0.0737
SHp 0 VA 0 BV 0.993 E BV 0.034
VI 0.97
CCDM
Ccdm 02430-2017 RComp Comp B Note1
Note2 Discov num HJ 3524 DRAs DDEs
R dRAs Year 1934 Theta 152 Rho 19.4
Obs 5 Vmag 9.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 -20 308 Cat2 CPD HD M HD
ADS BDS A 2079 M ADS BDS N IDS IDS 02384S2043B
HIC 12683