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Current system
17215-5628
HJ 4939
HD 156555


Nearby doubles
8' : 17207-5625
FIN 255AB

24' : 17228-5608
RST 921

26' : 17246-5629
HRG 123

33' : 17252-5621
BRT3318

33' : 17254-5623
HJ 4942AB

34' : 17251-5613
RST 923

41' : 17255-5604
RST 925

43' : 17253-5600
HDS2459

53' : 17241-5716
BRT2823

60' : 17220-5528
BRT3183

63' : 17206-5730
BRT2822

65' : 17284-5558
CPO 526

70' : 17188-5734
RST 916

77' : 17305-5609
KPP2999

78' : 17209-5511
TDT 316

79' : 17309-5621
FIN 257

82' : 17166-5519
RST 913

86' : 17317-5618
LDS 600

91' : 17141-5736
TDT 278

94' : 17229-5801
HDO 270AB

95' : 17101-5627
MOC 11

96' : 17301-5733
HJ 4950

98' : 17107-5710
RST 903

99' : 17297-5519
BRT2581

99' : 17286-5510
HDO 273

100' : 17335-5636
BRT3185



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.

17215-5628 HJ 4939 (HD 156555)

 
 
17h 21m 30.78s -56° 28' 17.8" P.A. 227.00 sep 29.6 mag 8.65,9.90 Sp A2III/IV
 
 
Coord 2000 17215-5628 Discov num HJ 4939 Comp Coord arcsec 2000 17 21 30.78 -56 28 17.8
Date first 1835 Date last 2015 Obs 12
Pa first 224 Pa last 226.8 P.A. Now (θ) 226.8°
Sep first 30.8 Sep last 29.639 Sep. Now (ρ) 29.639"
Mag pri 8.65 Mag sec 9.90 delta mag (ΔM) 1.25 Spectral class A2III/IV (white)
Pri motion ra -002 Sec motion ra -012
Pri motion dec -031 Sec motion dec -020
Notes N (See Notes)
rPM=0.479
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 156555 Constellation Ara SAO 244655 Tycho2 8736-02600-1
Gaia DR2 5922333638585511424 HD 156555 DM CP-56 8164
 
 
WDS 17215-5628 HJ 4939 (HD 156555) : NOTES
 
 
discov_num notes refcode
HJ 4939 B is CPD-56@8164.
 
 
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
17215-5628 HJ 4939 2000 9 226 29.8 8.65 9.90 A2III/IV N D 172130.78-562817.8
17215-5628 HJ 4939 2010 11 227 29.6 8.65 9.90 A2III/IV N 172130.78-562817.8
17215-5628 HJ 4939 2015 12 227 29.6 8.65 9.90 A2III/IV N 172130.78-562817.8

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

 
 
WDS 17215-5628 HJ 4939 (HD 156555) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17215-5628 HJ 4939 (HD 156555) : MEASURES
 
 
No records found.

 
 
WDS 17215-5628 (HD 156555) : VIRTUAL EYEPIECE
 
 

17215-5628 HJ 4939A mag 8.65 Sp A2III/IV 17215-5628 HJ 4939B sep 23.5 P.A. 210.50 mag 9.9 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 17215-5628 (HD 156555) : ALADIN DSS IMAGE @ 17h 21m 30.78s -56° 28' 17.8"
 
 
 
 
WDS 17215-5628 HJ 4939 (HD 156555) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17215-5628 HJ 4939 distance=0' 17207-5625 FIN 255AB distance=8' 17207-5625 HJ 4938AB,C distance=8' 17228-5608 RST 921 distance=24' 17246-5629 HRG 123 distance=26' 17252-5621 BRT3318 distance=33' 17254-5623 HJ 4942AB distance=33' 17254-5623 HJ 4942AC distance=33' 17254-5623 ANT 5AD distance=33' 17251-5613 RST 923 distance=34' 17255-5604 RST 925 distance=41' 17253-5600 HDS2459 distance=43' 17241-5716 BRT2823 distance=53' 17220-5528 BRT3183 distance=60' 17206-5730 BRT2822 distance=63' 17284-5558 CPO 526 distance=65' 17188-5734 RST 916 distance=70' 17305-5609 KPP2999 distance=77' 17209-5511 TDT 316 distance=78' 17309-5621 FIN 257 distance=79' 17166-5519 RST 913 distance=82' 17317-5618 LDS 600 distance=86' 17141-5736 TDT 278 distance=91' 17229-5801 HDO 270AB distance=94' 17229-5801 HDO 270AC distance=94' 17101-5627 MOC 11 distance=95' 17301-5733 HJ 4950 distance=96' 17107-5710 RST 903 distance=98' 17297-5519 BRT2581 distance=99' 17286-5510 HDO 273 distance=99' 17335-5636 BRT3185 distance=100' 17123-5523 HDS2430AB distance=101' 17326-5519 BRT3184 distance=117' 17177-5824 BRT3182 distance=121' 17228-5828 COO 213AB distance=121' 17228-5828 COO 213AC distance=121' 17256-5825 I 594 distance=121' 17340-5526 TDT 418 distance=123' 17078-5539 RST 897 distance=126' 17195-5422 HJ 4930 distance=128' 17369-5706 RST 942 distance=132' 17362-5538 HJ 4959 distance=133' 17369-5550 TDT 434 distance=135' 17239-5413 TDS 864 distance=137' 17137-5425 R 294 distance=140' 17342-5454 TOK 419 distance=143' 17130-5836 HJ 4920 distance=145' 17089-5811 TDT 233 distance=146' 17234-5857 TDT 334 distance=150' 17036-5655 BRT2821 distance=151' 17171-5403 CPO 517 distance=151' 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 17215-5628 HJ 4939 227 29.6
Show 17207-5625 FIN 255 AB 108 0.4 8
Show 17207-5625 HJ 4938 AB,C 109 25.0 8
Show 17228-5608 RST 921 40 1.2 24
Show 17246-5629 HRG 123 296 29.2 26
Show 17252-5621 BRT3318 105 2.7 33
Show 17254-5623 HJ 4942 AB 326 18.4 33
Show 17254-5623 HJ 4942 AC 64 41.2 33
Show 17254-5623 ANT 5 AD 39 47.2 33
Show 17251-5613 RST 923 337 5.4 34
Show 17255-5604 RST 925 73 0.6 41
Show 17253-5600 HDS2459 174 0.2 43
Show 17241-5716 BRT2823 107 4.4 53
Show 17220-5528 BRT3183 18 4.9 60
Show 17206-5730 BRT2822 344 3.6 63
Show 17284-5558 CPO 526 26 8.2 65
Show 17188-5734 RST 916 214 0.4 70
Show 17305-5609 KPP2999 172 2.5 77
Show 17209-5511 TDT 316 280 0.9 78
Show 17309-5621 FIN 257 122 0.1 79
Show 17166-5519 RST 913 162 1.1 82
Show 17317-5618 LDS 600 146 4.5 86
Show 17141-5736 TDT 278 147 0.8 91
Show 17229-5801 HDO 270 AB 184 1.8 94
Show 17229-5801 HDO 270 AC 153 40.0 94
Show 17101-5627 MOC 11 191 4.6 95
Show 17301-5733 HJ 4950 306 10.3 96
Show 17107-5710 RST 903 223 0.3 98
Show 17297-5519 BRT2581 183 5.0 99
Show 17286-5510 HDO 273 147 38.2 99
Show 17335-5636 BRT3185 306 5.7 100
Show 17123-5523 HDS2430 AB 119 13.3 101
Show 17326-5519 BRT3184 143 5.4 117
Show 17177-5824 BRT3182 50 2.6 121
Show 17228-5828 COO 213 AB 285 9.2 121
Show 17228-5828 COO 213 AC 92 30.8 121
Show 17256-5825 I 594 241 4.1 121
Show 17340-5526 TDT 418 159 0.7 123
Show 17078-5539 RST 897 98 1.5 126
Show 17195-5422 HJ 4930 41 8.7 128
Show 17369-5706 RST 942 282 1.0 132
Show 17362-5538 HJ 4959 114 19.4 133
Show 17369-5550 TDT 434 120 0.4 135
Show 17239-5413 TDS 864 244 1.5 137
Show 17137-5425 R 294 116 14.4 140
Show 17342-5454 TOK 419 82 0.6 143
Show 17130-5836 HJ 4920 322 2.9 145
Show 17089-5811 TDT 233 238 0.7 146
Show 17234-5857 TDT 334 157 1.6 150
Show 17036-5655 BRT2821 93 3.8 151
Show 17171-5403 CPO 517 198 6.2 151

 
 
WDS 17215-5628 : COMPONENTS
 
 
  A
B pa=210.5°
sep=23.54"
 
 
17215-5628 A
 
 
Componente originario normalizzato AB Name HD 156555 Coord arcsec 2000 172130.78-562817.8 Mag 8.65
Spectral class A2III/IV (white) PmRA -2.00 PmDE -31.0 SAO 244655
Tycho2 8736-02600-1 HD 156555 DM CP-56 8165
Tycho2
Tycho2 8736-02600-1 Pflag RAmdeg 260.37825051 DEmdeg -56.47159729
PmRA -1.0 PmDE -32.7 E RAmdeg 7 E DEmdeg 9
E pmRA 1.5 E pmDE 1.4 EpRAm 1991.02 EpDEm 1990.38
Num 9 Q RAmdeg 1.0 Q DEmdeg 0.8 Q pmRA 1.1
Q pmDE 0.9 BTmag 8.850 E BTmag 0.018 VTmag 8.654
E VTmag 0.016 Prox 297 TYC T HIP
CCDM RAdeg 260.37825472 DEdeg -56.47152139 EpRA 1990 1.79
EpDE 1990 1.66 E RAdeg 7.3 E DEdeg 8.8 Posflg
Corr 0.2
SAO
SAO 244655 DelFlag RA1950 PmRA1950 0.0014
DE1950 PmDE1950 -0.024 Vmag 8.8 SpType A2
Double code Source 43 CatNum 5539 DM CP-56 8165
DMcomp BDsup HD 156555 M HD 0
GC RA1950rad 4.5260662 DE1950rad -0.98475023 PmRA2000 0.0008
PmDE2000 -0.025
CCDM
Ccdm 17215-5628 RComp Comp A Note1
Note2 Discov num DRAs 0.84 DDEs -17.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.4 Sp A2 PmNote *
PmRA 12 PmDE -24 Dm number -56 8165 Cat1 CPD
Name2 244655 Cat2 SAO HD 156555 M HD
ADS BDS M ADS BDS N IDS IDS 17131S5622A
HIC
 
 
17215-5628 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 172129.34-562838.1 Mag 9.9 PmRA -12.00
PmDE -20.0 Tycho2 8736-02513-1 DM CP-56 8164 Calc delta mag 1.25
Calc coord yes
Tycho2
Tycho2 8736-02513-1 Pflag RAmdeg 260.36743285 DEmdeg -56.47729449
PmRA -10.2 PmDE -19.6 E RAmdeg 24 E DEmdeg 27
E pmRA 1.9 E pmDE 1.9 EpRAm 1984.95 EpDEm 1982.76
Num 5 Q RAmdeg 1.6 Q DEmdeg 1.2 Q pmRA 1.6
Q pmDE 1.2 BTmag 11.289 E BTmag 0.082 VTmag 9.903
E VTmag 0.038 Prox 297 TYC T HIP
CCDM RAdeg 260.36748667 DEdeg -56.47724806 EpRA 1990 1.77
EpDE 1990 1.63 E RAdeg 28.6 E DEdeg 35.0 Posflg D
Corr 0.3
CCDM
Ccdm 17215-5628 RComp Comp B Note1
Note2 Discov num HJ 4939 DRAs DDEs
R dRAs Year 1835 Theta 225 Rho 30.2
Obs 3 Vmag 9.5 Sp PmNote
PmRA PmDE Dm number -56 8164 Cat1 CPD
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 17131S5622B
HIC