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Doubles in session


Current system
17269-4551
DUN 216 AC


Nearby doubles
2' : 17267-4551
ARY 109

14' : 17280-4545
B 1858

15' : 17283-4550
DON 840

26' : 17254-4611
RST 927

37' : 17257-4516
B 1857

41' : 17294-4520
CPO 528

43' : 17252-4512
B 1856

45' : 17228-4537
EVS 30AB

46' : 17312-4552
BRT 975

48' : 17227-4611
BRT 961

53' : 17237-4510
I 593

53' : 17318-4602
I 40

55' : 17320-4559
ARY 93

56' : 17298-4638
SHN 220

60' : 17217-4524
DON 831

62' : 17253-4451
SKF1055

63' : 17213-4526
BRT 958

65' : 17213-4523
CPO 520

65' : 17206-4549
BRT 957

67' : 17273-4657
I 597

69' : 17216-4632
RST 920

69' : 17313-4501
DON 841

70' : 17245-4656
CPO 521

70' : 17332-4531
I 603

70' : 17246-4445
DON 836

71' : 17335-4606
RST 941



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.

17269-4551 DUN 216 AC

 
 
17h 26m 51.98s -45° 50' 34.7" P.A. 312.00 sep 102.5 mag 5.63,7.12 Sp A0V dist. 194.93 pc (635.86 l.y.)
 
 
Coord 2000 17269-4551 Discov num DUN 216 Comp AC Coord arcsec 2000 17 26 51.98 -45 50 34.7
Date first 1836 Date last 2016 Obs 18
Pa first 314 Pa last 311.6 P.A. Now (θ) 311.6°
Sep first 104.0 Sep last 102.54 Sep. Now (ρ) 102.54"
Mag pri 5.63 Mag sec 7.12 delta mag (ΔM) 1.49 Spectral class A0V (white)
Pri motion ra -006 Sec motion ra -005
Pri motion dec -028 Sec motion dec -030
Notes
rPM=0.074 (< 0.3, Physical double)
This double is physical.
 
 
17269-4551 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show NSV8637 227971 17 26 52 -45 50 35 HJ 4949 AB 2016 56 251 2.1 5.63 6.46 0.83
Show 227971 17 26 52 -45 50 35 DUN 216 AC 2016 18 312 102.5 5.63 7.12 1.49 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV8637 Constellation Ara SAO 227971 HIP 85389
Tycho2 8342-06345-1 Gaia DR2 5951986642593137408 HD 157661 HR 6477
CD CD-4511531 CP CP-45 8580 Distance 194.93 Distance ly 635.86
 
 
WDS 17269-4551 DUN 216 AC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Dun1829 Ma - Dunlop, J. 1829MmRAS...3..257D
Dun1829 MemRAS 3, 257, 1829
Dun1829 some measures corrected in LRR2022
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
17269-4551 DUN 216 AC 1999 15 312 102.4 5.63 7.12 A0V D 172651.98-455034.7
17269-4551 DUN 216 AC 2013 16 312 102.6 5.63 7.12 A0V 172651.98-455034.7
17269-4551 DUN 216 AC 2016 17 312 102.5 5.63 7.12 A0V 172651.98-455034.7

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

 
 
WDS 17269-4551 DUN 216 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17269-4551 DUN 216 AC : MEASURES
 
 
No records found.

 
 
WDS 17269-4551 : VIRTUAL EYEPIECE
 
 

17269-4551 HJ 4949A mag 5.63 Sp B7V 17269-4551 HJ 4949B sep 1.6 P.A. 243.80 mag 6.46 Sp B9.5V 17269-4551 DUN 216C sep 86.5 P.A. 321.90 mag 7.12 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 17269-4551 : ALADIN DSS IMAGE @ 17h 26m 51.98s -45° 50' 34.7"
 
 
 
 
WDS 17269-4551 DUN 216 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17269-4551 DUN 216AC distance=0' 17267-4551 ARY 109 distance=2' 17280-4545 B 1858 distance=14' 17283-4550 DON 840 distance=15' 17254-4611 RST 927 distance=26' 17257-4516 B 1857 distance=37' 17294-4520 CPO 528 distance=41' 17252-4512 B 1856 distance=43' 17228-4537 EVS 30AB distance=45' 17228-4537 EVS 30AC distance=45' 17228-4537 GAA 15Aa,Ab distance=45' 17312-4552 BRT 975 distance=46' 17227-4611 BRT 961 distance=48' 17237-4510 I 593 distance=53' 17318-4602 I 40 distance=53' 17320-4559 ARY 93 distance=55' 17298-4638 SHN 220 distance=56' 17217-4524 DON 831 distance=60' 17253-4451 SKF1055 distance=62' 17213-4526 BRT 958 distance=63' 17213-4523 CPO 520 distance=65' 17206-4549 BRT 957 distance=65' 17273-4657 I 597 distance=67' 17216-4632 RST 920 distance=69' 17313-4501 DON 841 distance=69' 17245-4656 CPO 521 distance=70' 17332-4531 I 603 distance=70' 17246-4445 DON 836 distance=70' 17335-4606 RST 941 distance=71' 17279-4702 RST5543 distance=72' 17326-4631 RST 936 distance=72' 17200-4610 HJ 4936 distance=74' 17324-4638 HJ 4957 distance=75' 17340-4600 DON 843 distance=75' 17327-4636 RST 937 distance=76' 17222-4649 HDS2452 distance=77' 17275-4709 LDS 597 distance=80' 17246-4709 HJ 4944 distance=82' 17306-4709 RST 933 distance=88' 17184-4603 DON 830 distance=90' 17241-4425 DON 834 distance=91' 17181-4605 HJ 4929 distance=93' 17347-4508 RSS 451 distance=93' 17191-4638 BSO 13AB distance=94' 17191-4638 BSO 13AC distance=94' 17191-4638 BSO 13AD distance=94' 17191-4638 BSO 13Ba,Bb distance=95' 17207-4443 CPO 519 distance=95' 17274-4416 DON 839 distance=95' 17310-4717 WFC 195AB distance=97' 17310-4717 SKF1416AC distance=97' 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 17269-4551 HJ 4949 AB 251 2.1
Show 17269-4551 DUN 216 AC 312 102.5
Show 17267-4551 ARY 109 155 10.5 2
Show 17280-4545 B 1858 237 2.2 14
Show 17283-4550 DON 840 12 1.3 15
Show 17254-4611 RST 927 312 2.4 26
Show 17257-4516 B 1857 51 4.5 37
Show 17294-4520 CPO 528 357 4.7 41
Show 17252-4512 B 1856 140 1.6 43
Show 17228-4537 EVS 30 AB 268 14.4 45
Show 17228-4537 EVS 30 AC 215 18.0 45
Show 17228-4537 GAA 15 Aa,Ab 235 0.0 45
Show 17312-4552 BRT 975 134 5.1 46
Show 17227-4611 BRT 961 327 4.6 48
Show 17237-4510 I 593 282 0.8 53
Show 17318-4602 I 40 210 20.5 53
Show 17320-4559 ARY 93 206 56.4 55
Show 17298-4638 SHN 220 -1 0.2 56
Show 17217-4524 DON 831 30 0.3 60
Show 17253-4451 SKF1055 47 7.6 62
Show 17213-4526 BRT 958 210 2.8 63
Show 17213-4523 CPO 520 70 5.3 65
Show 17206-4549 BRT 957 313 3.1 65
Show 17273-4657 I 597 357 1.0 67
Show 17216-4632 RST 920 230 0.3 69
Show 17313-4501 DON 841 29 2.2 69
Show 17245-4656 CPO 521 265 4.2 70
Show 17332-4531 I 603 78 1.3 70
Show 17246-4445 DON 836 87 1.3 70
Show 17335-4606 RST 941 150 2.2 71
Show 17279-4702 RST5543 355 1.4 72
Show 17326-4631 RST 936 261 0.5 72
Show 17200-4610 HJ 4936 76 7.4 74
Show 17324-4638 HJ 4957 260 2.9 75
Show 17340-4600 DON 843 222 4.3 75
Show 17327-4636 RST 937 307 5.3 76
Show 17222-4649 HDS2452 257 11.7 77
Show 17275-4709 LDS 597 82 12.5 80
Show 17246-4709 HJ 4944 164 13.4 82
Show 17306-4709 RST 933 253 0.4 88
Show 17184-4603 DON 830 98 2.3 90
Show 17241-4425 DON 834 20 1.6 91
Show 17181-4605 HJ 4929 226 10.6 93
Show 17347-4508 RSS 451 154 11.2 93
Show 17191-4638 BSO 13 AB 259 10.6 94
Show 17191-4638 BSO 13 AC 267 144.6 94
Show 17191-4638 BSO 13 AD 290 94.7 94
Show 17191-4638 BSO 13 Ba,Bb 235 0.1 95
Show 17207-4443 CPO 519 223 5.7 95
Show 17274-4416 DON 839 274 2.4 95
Show 17310-4717 WFC 195 AB 271 6.1 97

 
 
WDS 17269-4551 : COMPONENTS
 
 
  A B
B pa=243.8°
sep=1.56"
 
C pa=321.9°
sep=86.54"
pa=322.9°
sep=86.23"
 
 
17269-4551 A
 
 
Name NSV8637 Coord arcsec 2000 172651.98-455034.7 Mag 5.63 Spectral class B7V (blue-white)
PmRA 1.00 PmDE -29.0 SAO 227971 HIP 85389
Tycho2 8342-06345-1 HD 157661 HR 6477 GC 23589
CD CD-4511531 CP CP-45 8580
Tycho2
Tycho2 8342-06345-1 Pflag RAmdeg 261.71660106 DEmdeg -45.84303210
PmRA 1.4 PmDE -29.1 E RAmdeg 3 E DEmdeg 4
E pmRA 1.7 E pmDE 1.6 EpRAm 1991.89 EpDEm 1991.98
Num 4 Q RAmdeg 2.0 Q DEmdeg 1.8 Q pmRA 2.0
Q pmDE 1.7 BTmag 5.562 E BTmag 0.014 VTmag 5.630
E VTmag 0.009 Prox 21 TYC T HIP 85389
CCDM A RAdeg 261.71659667 DEdeg -45.84296778 EpRA 1990 1.92
EpDE 1990 2.05 E RAdeg 3.2 E DEdeg 3.6 Posflg D
Corr -0.3
SAO
SAO 227971 DelFlag RA1950 PmRA1950 -0.0038
DE1950 PmDE1950 -0.039 Vmag 5.8 SpType B9
Double code Source 70 CatNum 23589 DM CD-4511531
DMcomp B BDsup HD 157661 M HD 0
GC 23589 RA1950rad 4.55166711 DE1950rad -0.7993712 PmRA2000 -0.0038
PmDE2000 -0.04
Hipparcos
Catalog H HIP 85389 Proxy H RAhms 17 26 51.98
DEdms -45 50 34.7 Vmag 5.28 VarFlag R Vmag G
RAdeg 261.717 DEdeg -45.843 AstroRef A Plx 5.44
CCDM 17268-4550 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 253 Rho 2.115 HD 157661 BD
CD CD-4511531 CP CP-45 8580 Dm number -4511531 VIred -0.05
SpType B8V R SpType Coord arcsec 2000 172651.98-455034.7
Hipparcos 2
HIP 85389 Sn 15 So 3 Nc 2
RArad 4.5678163357 DErad -0.8001106362 Plx 5.13 PmRA -6.46
PmDE -27.91 E RArad 0.77 E DErad 0.37 E Plx 0.72
E pmRA 0.98 E pmDE 0.39 Hpmag 5.2627 E Hpmag 0.0008
SHp 0.006 VA 0 BV -0.058 E BV 0.007
VI -0.05
 
 
17269-4551 B
 
 
Coord arcsec 2000 172651.85-455035.4 Mag 6.46 Spectral class B9.5V (blue-white) Calc delta mag 0.83
Calc coord yes
 
 
17269-4551 C
 
 
Coord arcsec 2000 172646.87-454926.6 Mag 7.12 PmRA -5.00 PmDE -30.0
Calc delta mag 1.49 Calc coord yes