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Doubles in session


Current system
17087-4242
HJ 4918
HD 154645


Nearby doubles
18' : 17076-4255
CPO 511

23' : 17096-4302
B 1848

46' : 17079-4157
I 406

48' : 17118-4314
I 587

49' : 17046-4300
BRT 943

51' : 17122-4314
GAT 21

54' : 17106-4331
B 1849

55' : 17118-4200
CPO 72AB

59' : 17081-4143
NSN 381

63' : 17123-4330
SKF1413

65' : 17030-4300
B 1842

66' : 17081-4137
I 407

71' : 17028-4215
I 583

72' : 17073-4352
TDT 221

72' : 17067-4350
B 1844

73' : 17067-4351
TDT 216

80' : 17145-4329
DON 829

82' : 17016-4221
TDT 183

86' : 17164-4240
FGS 28

87' : 17163-4220
I 408

92' : 17101-4112
TDT 243

92' : 17011-4204
B 1841

93' : 17045-4402
DON 822

95' : 17043-4403
DON 821

96' : 17052-4114
RST5426

99' : 17112-4416
CPO 514AB



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.

17087-4242 HJ 4918 (HD 154645)

 
 
17h 08m 40.21s -42° 41' 41.0" P.A. 291.00 sep 13.2 mag 9.07,12.02 Sp Ap dist. 510.2 pc (1664.27 l.y.)
 
 
Coord 2000 17087-4242 Discov num HJ 4918 Comp Coord arcsec 2000 17 08 40.21 -42 41 41.0
Date first 1834 Date last 2015 Obs 10
Pa first 284 Pa last 291.2 P.A. Now (θ) 291.2°
Sep first 8.0 Sep last 13.164 Sep. Now (ρ) 13.164"
Mag pri 9.07 Mag sec 12.02 delta mag (ΔM) 2.95 Spectral class Ap (white)
Pri motion ra -004 Sec motion ra +002
Pri motion dec -004 Sec motion dec +011
Notes
rPM=1.445
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 154645 Constellation Scorpius SAO 227666 HIP 83882
Tycho2 7877-00366-1 Gaia DR2 5965298322435976192 HD 154645 CD CD-4211864
CP CP-42 7648 Distance 510.2 Distance ly 1664.27
 
 
WDS 17087-4242 HJ 4918 (HD 154645) : 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
17087-4242 HJ 4918 2000 8 291 13.2 9.07 12.02 Ap D 170840.21-424141.0
17087-4242 HJ 4918 2015 10 291 13.2 9.07 12.02 Ap 170840.21-424141.0

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

 
 
WDS 17087-4242 HJ 4918 (HD 154645) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17087-4242 HJ 4918 (HD 154645) : MEASURES
 
 
No records found.

 
 
WDS 17087-4242 (HD 154645) : VIRTUAL EYEPIECE
 
 

17087-4242 HJ 4918A mag 9.07 Sp Ap 17087-4242 HJ 4918B sep 10.2 P.A. 297.80 mag 12.02 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 17087-4242 (HD 154645) : ALADIN DSS IMAGE @ 17h 08m 40.21s -42° 41' 41.0"
 
 
 
 
WDS 17087-4242 HJ 4918 (HD 154645) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17087-4242 HJ 4918 distance=0' 17076-4255 CPO 511 distance=18' 17096-4302 B 1848 distance=23' 17079-4157 I 406 distance=46' 17118-4314 I 587 distance=48' 17046-4300 BRT 943 distance=49' 17122-4314 GAT 21 distance=51' 17106-4331 B 1849 distance=54' 17118-4200 CPO 72AB distance=55' 17081-4143 NSN 381 distance=59' 17123-4330 SKF1413 distance=63' 17030-4300 B 1842 distance=65' 17081-4137 I 407 distance=66' 17028-4215 I 583 distance=71' 17073-4352 TDT 221 distance=72' 17067-4350 B 1844 distance=72' 17067-4351 TDT 216 distance=73' 17145-4329 DON 829 distance=80' 17016-4221 TDT 183 distance=82' 17164-4240 FGS 28 distance=86' 17163-4220 I 408 distance=87' 17101-4112 TDT 243 distance=92' 17011-4204 B 1841 distance=92' 17045-4402 DON 822 distance=93' 17043-4403 DON 821 distance=95' 17052-4114 RST5426 distance=96' 17112-4416 CPO 514AB distance=99' 17112-4416 SIN 101AC distance=99' 17056-4106 HLN 41 distance=103' 16591-4242 KSS 2 distance=106' 17074-4427 COO 208 distance=106' 16597-4159 HDS2405 distance=109' 17184-4256 TDS 861 distance=109' 17086-4051 RSS 431 distance=111' 17188-4254 SNA 68 distance=112' 17173-4140 CPO 73 distance=114' 17107-4433 I 1312 distance=114' 17019-4112 DAW 72 distance=117' 17061-4048 KPP 391 distance=118' 17114-4047 VVV 38 distance=119' 17084-4443 CPO 71 distance=122' 16597-4130 I 581 distance=123' 17067-4443 TDT 217 distance=124' 17103-4450 CPO 512 distance=129' 16595-4405 CPO 506 distance=130' 17099-4453 BRT 949 distance=132' 16596-4117 B 1839AB distance=132' 16596-4117 B 1839AB,C distance=132' 16580-4344 TDT 160 distance=133' 17186-4128 KPP 395 distance=133' 17162-4426 SKF1415 distance=133' 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 17087-4242 HJ 4918 291 13.2
Show 17076-4255 CPO 511 117 3.1 18
Show 17096-4302 B 1848 98 0.2 23
Show 17079-4157 I 406 95 2.0 46
Show 17118-4314 I 587 143 5.5 48
Show 17046-4300 BRT 943 176 3.3 49
Show 17122-4314 GAT 21 129 591.8 51
Show 17106-4331 B 1849 223 2.3 54
Show 17118-4200 CPO 72 AB 30 11.5 55
Show 17081-4143 NSN 381 327 4.6 59
Show 17123-4330 SKF1413 198 6.9 63
Show 17030-4300 B 1842 338 0.3 65
Show 17081-4137 I 407 239 0.1 66
Show 17028-4215 I 583 119 4.0 71
Show 17073-4352 TDT 221 312 0.8 72
Show 17067-4350 B 1844 224 0.9 72
Show 17067-4351 TDT 216 9 1.3 73
Show 17145-4329 DON 829 348 1.8 80
Show 17016-4221 TDT 183 85 0.6 82
Show 17164-4240 FGS 28 -1 -1.0 86
Show 17163-4220 I 408 178 1.7 87
Show 17101-4112 TDT 243 269 0.4 92
Show 17011-4204 B 1841 57 0.0 92
Show 17045-4402 DON 822 58 1.9 93
Show 17043-4403 DON 821 26 1.8 95
Show 17052-4114 RST5426 256 0.8 96
Show 17112-4416 CPO 514 AB 133 5.7 99
Show 17112-4416 SIN 101 AC 12.5 99
Show 17056-4106 HLN 41 193 0.2 103
Show 16591-4242 KSS 2 347 0.0 106
Show 17074-4427 COO 208 137 5.0 106
Show 16597-4159 HDS2405 328 0.1 109
Show 17184-4256 TDS 861 354 1.7 109
Show 17086-4051 RSS 431 51 9.7 111
Show 17188-4254 SNA 68 20 6.4 112
Show 17173-4140 CPO 73 313 18.6 114
Show 17107-4433 I 1312 125 13.0 114
Show 17019-4112 DAW 72 356 3.2 117
Show 17061-4048 KPP 391 183 3.9 118
Show 17114-4047 VVV 38 312 2.8 119
Show 17084-4443 CPO 71 348 9.7 122
Show 16597-4130 I 581 346 1.9 123
Show 17067-4443 TDT 217 97 1.1 124
Show 17103-4450 CPO 512 165 6.0 129
Show 16595-4405 CPO 506 225 5.1 130
Show 17099-4453 BRT 949 33 5.0 132
Show 16596-4117 B 1839 AB 133 0.2 132
Show 16596-4117 B 1839 AB,C 326 8.6 132
Show 16580-4344 TDT 160 116 1.1 133
Show 17186-4128 KPP 395 181 4.9 133
Show 17162-4426 SKF1415 26 4.9 133

 
 
WDS 17087-4242 : COMPONENTS
 
 
  A
B pa=297.8°
sep=10.20"
 
 
17087-4242 A
 
 
Componente originario normalizzato AB Name HD 154645 Coord arcsec 2000 170840.21-424141.0 Mag 9.07
Spectral class Ap (white) PmRA -4.00 PmDE -4.0 SAO 227666
HIP 83882 Tycho2 7877-00366-1 HD 154645 CD CD-4211864
CP CP-42 7648
Tycho2
Tycho2 7877-00366-1 Pflag RAmdeg 257.16755723 DEmdeg -42.69472817
PmRA -3.3 PmDE -3.9 E RAmdeg 9 E DEmdeg 11
E pmRA 1.1 E pmDE 1.1 EpRAm 1990.12 EpDEm 1988.61
Num 8 Q RAmdeg 0.9 Q DEmdeg 1.0 Q pmRA 1.0
Q pmDE 1.0 BTmag 9.118 E BTmag 0.020 VTmag 9.071
E VTmag 0.020 Prox 132 TYC T HIP 83882
CCDM A RAdeg 257.16756722 DEdeg -42.69471806 EpRA 1990 1.65
EpDE 1990 1.26 E RAdeg 8.7 E DEdeg 12.0 Posflg
Corr 0.1
SAO
SAO 227666 DelFlag RA1950 PmRA1950 0.0001
DE1950 PmDE1950 -0.012 Vmag 8.5 SpType B9
Double code Source 48 CatNum 15813 DM CP-42 7648
DMcomp BDsup HD 154645 M HD 0
GC RA1950rad 4.4728765 DE1950rad -0.74404761 PmRA2000 0.0001
PmDE2000 -0.012
Hipparcos
Catalog H HIP 83882 Proxy RAhms 17 08 40.22
DEdms -42 41 41.0 Vmag 9.09 VarFlag 1 R Vmag G
RAdeg 257.168 DEdeg -42.6947 AstroRef A Plx 4.25
CCDM 17087-4242 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 291 Rho 13.235 HD 154645 BD
CD CD-4211864 CP CP-42 7648 Dm number -4211864 VIred 0.1
SpType Ap EuCrSr R SpType Coord arcsec 2000 170840.22-424141.0
Hipparcos 2
HIP 83882 Sn 15 So 3 Nc 2
RArad 4.488420853 DErad -0.7451633357 Plx 1.96 PmRA -4.03
PmDE -6.48 E RArad 1.8 E DErad 0.96 E Plx 1.77
E pmRA 2.13 E pmDE 1 Hpmag 9.1018 E Hpmag 0.0119
SHp 0.029 VA 0 BV 0.089 E BV 0.015
VI 0.1
CCDM
Ccdm 17087-4242 RComp Comp A Note1
Note2 Discov num DRAs -1.81 DDEs 18.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.7 Sp B9 PmNote *
PmRA 1 PmDE -12 Dm number -4211864 Cat1 CD
Name2 227666 Cat2 SAO HD 154645 M HD
ADS BDS M ADS BDS N IDS IDS 17016S4234A
HIC 83882
 
 
17087-4242 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 170839.39-424136.2 Mag 12.02 PmRA 2.00
PmDE 11.0 Calc delta mag 2.95 Calc coord yes
CCDM
Ccdm 17087-4242 RComp Comp B Note1
Note2 Discov num HJ 4918 DRAs DDEs
R dRAs Year 1913 Theta 291 Rho 13.7
Obs 1 Vmag 11.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 17016S4234B
HIC