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Current system
17311-6041
EHR 15 AB


Nearby doubles
15' : 17315-6026
I 600

38' : 17272-6105
RSS 441

42' : 17255-6039
TDT 344

45' : 17371-6049
KPP1781

50' : 17249-6101
B 2408

54' : 17315-5948
JSP 932

55' : 17344-6130
SWR 224

60' : 17336-6138
RST5084

66' : 17240-6002
R 299

66' : 17295-6146
I 598AB

72' : 17384-5956
HJ 4961

74' : 17231-5958
RST5078

75' : 17211-6031
FIN 254

77' : 17321-6157
I 601AB

77' : 17244-6141
JSP 716

80' : 17403-6001
UC 3381

81' : 17207-6020
RST5076

81' : 17417-6021
FIN 259

81' : 17308-5920
JSP 931

84' : 17366-5928
KPP 998

85' : 17197-6053
TDT 310

86' : 17231-6144
JSP 715

87' : 17196-6101
TDT 308

89' : 17403-5945
HDS2500

89' : 17190-6045
B 2830

91' : 17249-5924
HDS2458



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

17311-6041 EHR 15 AB

 
 
17h 31m 05.91s -60° 41' 01.8" P.A. 67.00 sep 3.1 mag 3.70,14.20 Sp B8Vn dist. 60.68 pc (197.94 l.y.)
 
 
Coord 2000 17311-6041 Discov num EHR  15 Comp AB Coord arcsec 2000 17 31 05.91 -60 41 01.8
Date first 2009 Date last 2009 Obs 1
Pa first 67 Pa last 67.2 P.A. Now (θ) 67.2°
Sep first 3.1 Sep last 3.123 Sep. Now (ρ) 3.123"
Mag pri 3.70 Mag sec 14.20 delta mag (ΔM) 10.5 Spectral class B8Vn (blue-white)
Pri motion ra -054 Sec motion ra
Pri motion dec -099 Sec motion dec
Notes N K (See Notes, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
 
 
17311-6041 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 253945 17 31 06 -60 41 02 EHR 15 AB 2009 1 67 3.1 3.70 14.20 10.50 <===
Show 253945 17 31 06 -60 41 02 EHR 15 AC 2009 1 51 8.6 3.70 13.00 9.30
Show 253945 17 31 06 -60 41 02 EHR 15 AD 2009 1 62 12.3 3.70 11.90 8.20
Show Del Ara 253945 17 31 06 -60 41 02 HJ 4951 AE 2016 7 324 50.4 3.64 10.96 7.32
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ara SAO 253945 HIP 85727 Tycho2 9053-04118-1
Gaia DR2 5912398348427886976 HD 158094 HR 6500 GC 23681
CP CP-60 6842 Bayer Delta Arae Bayer name Del Ara FK5 648
Distance 60.68 Distance ly 197.94 Bayer greek δ Ara
 
 
WDS 17311-6041 EHR 15 AB : NOTES
 
 
discov_num notes refcode
EHR 15 Primary is del Ara. Physical/optical nature of AB,AC,AD all undefined. Ehr2010
HJ 4951 AE: Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
del Ara Hipparcos astrometric solution assumed circular orbit (e = omega = 0) HIP1997d
 
 
REFERENCES
 
 
refcode metd author reference
Ehr2010 Ao j Ehrenreich, D., Lagrange, A.-M., Montagnier, G., Chauvin, G., Galland, F. 2010A&A...523A..73E
Ehr2010 Beuzit, J.-L., & Rameau. J.
Ehr2010 A&A 523, A73, 2010
HIP1997d orb - Hipparcos 1997yCat.1239....0E
HIP1997d Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d (DMSA/O Orbital Solutions)
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
 
 
DISCOVERER
 
 
idgroup discov author
1 HJ Herschel, J.F.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17311-6041 EHR 15 AB 2009 1 67 3.1 3.70 14.20 B8Vn N DK 173105.91-604101.8

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

 
 
WDS 17311-6041 EHR 15 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17311-6041 EHR 15 AB : MEASURES
 
 
No records found.

 
 
WDS 17311-6041 : VIRTUAL EYEPIECE
 
 

17311-6041 EHR 15A mag 3.7 Sp B8Vn 17311-6041 EHR 15B sep 1.9 P.A. 49.40 mag 14.2 17311-6041 EHR 15C sep 6.3 P.A. 31.20 mag 13 17311-6041 EHR 15D sep 7.9 P.A. 42.60 mag 11.9 17311-6041 HJ 4951E sep 43.1 P.A. 340.10 mag 10.96 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 17311-6041 : ALADIN DSS IMAGE @ 17h 31m 05.91s -60° 41' 01.8"
 
 
 
 
WDS 17311-6041 EHR 15 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17311-6041 EHR 15AB distance=0' 17315-6026 I 600 distance=15' 17272-6105 RSS 441 distance=38' 17255-6039 TDT 344 distance=42' 17371-6049 KPP1781 distance=45' 17249-6101 B 2408 distance=50' 17315-5948 JSP 932 distance=54' 17344-6130 SWR 224 distance=55' 17336-6138 RST5084 distance=60' 17240-6002 R 299 distance=66' 17295-6146 I 598AB distance=66' 17295-6146 I 598AC distance=66' 17295-6146 I 598AD distance=66' 17384-5956 HJ 4961 distance=72' 17231-5958 RST5078 distance=74' 17211-6031 FIN 254 distance=75' 17321-6157 I 601AB distance=77' 17244-6141 JSP 716 distance=77' 17403-6001 UC 3381 distance=80' 17207-6020 RST5076 distance=81' 17417-6021 FIN 259 distance=81' 17308-5920 JSP 931 distance=81' 17366-5928 KPP 998 distance=84' 17197-6053 TDT 310 distance=85' 17231-6144 JSP 715 distance=86' 17196-6101 TDT 308 distance=87' 17403-5945 HDS2500 distance=89' 17190-6045 B 2830 distance=89' 17249-5924 HDS2458 distance=91' 17351-6207 B 1861 distance=91' 17435-6027 UC 3392 distance=93' 17211-5944 RST5077 distance=94' 17182-6027 CVN 28AB distance=96' 17182-6027 CVN 28Aa,Ab distance=96' 17182-6027 CVN 28AC distance=96' 17182-6027 CVN 28AD distance=96' 17182-6027 CVN 28AE distance=96' 17182-6027 CVN 28AF distance=96' 17182-6027 CVN 28AG distance=96' 17182-6027 CVN 28AH distance=96' 17182-6027 CVN 28AI distance=96' 17244-5919 JSP 717 distance=97' 17433-6009 I 609 distance=97' 17248-5913 I 385AB distance=101' 17248-5913 WSI 87AD distance=101' 17248-5913 I 385AE distance=101' 17248-5913 I 385AB,C distance=101' 17449-6022 UC 3397 distance=104' 17430-5947 UC 3389 distance=105' 17360-5903 RST5089 distance=105' 17243-6214 B 1855 distance=105' 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 17311-6041 HJ 4951 AE 324 50.4
Show 17311-6041 EHR 15 AB 67 3.1
Show 17311-6041 EHR 15 AC 51 8.6
Show 17311-6041 EHR 15 AD 62 12.3
Show 17315-6026 I 600 151 0.5 15
Show 17272-6105 RSS 441 18 8.0 38
Show 17255-6039 TDT 344 138 1.3 42
Show 17371-6049 KPP1781 217 13.8 45
Show 17249-6101 B 2408 135 2.0 50
Show 17315-5948 JSP 932 171 5.2 54
Show 17344-6130 SWR 224 270 31.8 55
Show 17336-6138 RST5084 316 1.0 60
Show 17240-6002 R 299 342 10.7 66
Show 17295-6146 I 598 AB 136 1.2 66
Show 17295-6146 I 598 AC 31 15.9 66
Show 17295-6146 I 598 AD 268 52.6 66
Show 17384-5956 HJ 4961 153 16.9 72
Show 17231-5958 RST5078 45 0.5 74
Show 17211-6031 FIN 254 245 2.9 75
Show 17321-6157 I 601 AB 78 6.4 77
Show 17244-6141 JSP 716 87 2.7 77
Show 17403-6001 UC 3381 228 37.8 80
Show 17207-6020 RST5076 227 0.7 81
Show 17417-6021 FIN 259 263 2.4 81
Show 17308-5920 JSP 931 186 7.5 81
Show 17366-5928 KPP 998 101 8.1 84
Show 17197-6053 TDT 310 163 2.6 85
Show 17231-6144 JSP 715 58 2.9 86
Show 17196-6101 TDT 308 292 2.6 87
Show 17403-5945 HDS2500 36 0.3 89
Show 17190-6045 B 2830 91 4.1 89
Show 17249-5924 HDS2458 354 1.0 91
Show 17351-6207 B 1861 271 1.5 91
Show 17435-6027 UC 3392 255 66.0 93
Show 17211-5944 RST5077 314 2.1 94
Show 17182-6027 CVN 28 AB 315 3.9 96
Show 17182-6027 CVN 28 Aa,Ab 196 0.2 96
Show 17182-6027 CVN 28 AC 103 5.9 96
Show 17182-6027 CVN 28 AD 68 7.3 96
Show 17182-6027 CVN 28 AE 195 10.8 96
Show 17182-6027 CVN 28 AF 71 11.6 96
Show 17182-6027 CVN 28 AG 207 12.0 96
Show 17182-6027 CVN 28 AH 201 12.2 96
Show 17182-6027 CVN 28 AI 50 15.4 96
Show 17244-5919 JSP 717 332 3.6 97
Show 17433-6009 I 609 115 2.7 97
Show 17248-5913 I 385 AB 117 0.4 101
Show 17248-5913 WSI 87 AD 271 0.3 101
Show 17248-5913 I 385 AE 109 28.1 101
Show 17248-5913 I 385 AB,C 210 17.3 101
Show 17449-6022 UC 3397 228 35.8 104

 
 
WDS 17311-6041 : COMPONENTS
 
 
  A B C D
B pa=49.4°
sep=1.86"
 
C pa=31.2°
sep=6.32"
pa=23.9°
sep=4.59"
 
D pa=42.6°
sep=7.86"
pa=40.6°
sep=6.02"
pa=79.6°
sep=2.09"
 
E pa=340.1°
sep=43.10"
pa=337.7°
sep=42.48"
pa=332.9°
sep=39.44"
pa=330.1°
sep=40.09"
 
 
17311-6041 A
 
 
Coord arcsec 2000 173105.91-604101.8 Mag 3.7 Spectral class B8Vn (blue-white) PmRA -54.00
PmDE -99.0 SAO 253945 HIP 85727 Tycho2 9053-04118-1
HD 158094 HR 6500 GC 23681 CP CP-60 6842
Bayer Delta Bayer name Del FK5 648
Tycho2
Tycho2 9053-04118-1 Pflag RAmdeg 262.77461993 DEmdeg -60.68384975
PmRA -56.8 PmDE -100.0 E RAmdeg 3 E DEmdeg 3
E pmRA 0.9 E pmDE 0.8 EpRAm 1991.59 EpDEm 1991.57
Num 14 Q RAmdeg 1.3 Q DEmdeg 2.0 Q pmRA 1.4
Q pmDE 2.0 BTmag 3.463 E BTmag 0.014 VTmag 3.563
E VTmag 0.009 Prox 999 TYC T HIP 85727
CCDM RAdeg 262.77488444 DEdeg -60.68362194 EpRA 1990 1.79
EpDE 1990 1.79 E RAdeg 3.2 E DEdeg 3.2 Posflg
Corr 0.0
SAO
SAO 253945 DelFlag RA1950 PmRA1950 -0.0065
DE1950 PmDE1950 -0.094 Vmag 3.8 SpType B8
Double code Source 74 CatNum 648 DM CP-60 6842
DMcomp BDsup HD 158094 M HD 0
GC 23681 RA1950rad 4.56656183 DE1950rad -1.05844958 PmRA2000 -0.0073
PmDE2000 -0.095
Hipparcos
Catalog H HIP 85727 Proxy RAhms 17 31 05.98
DEdms -60 41 01.0 Vmag 3.6 VarFlag R Vmag H
RAdeg 262.775 DEdeg -60.6836 AstroRef + Plx 17.42
CCDM 17311-6041 N CCDM I Nsys 1 Ncomp 1
MultFlag O Source Qual M HIP
Theta Rho HD 158094 BD
CD CP CP-60 6842 Dm number -60 6842 VIred -0.1
SpType B8V R SpType Coord arcsec 2000 173105.98-604101.0
Hipparcos 2
HIP 85727 Sn 75 So 4 Nc 1
RArad 4.5862872742 DErad -1.0591287369 Plx 16.48 PmRA -54.01
PmDE -99.25 E RArad 0.24 E DErad 0.21 E Plx 0.34
E pmRA 0.3 E pmDE 0.24 Hpmag 3.5681 E Hpmag 0.0004
SHp 0.004 VA 0 BV -0.104 E BV 0.009
VI -0.1
CCDM
Ccdm 17311-6041 RComp Comp A Note1
Note2 % Discov num DRAs -0.03 DDEs -1.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 3.8 Sp B8 PmNote *
PmRA -48 PmDE -94 Dm number -60 6842 Cat1 CPD
Name2 253945 Cat2 SAO HD 158094 M HD
ADS BDS M ADS BDS N IDS IDS 17221S6036A
HIC 85727
 
 
17311-6041 B
 
 
Coord arcsec 2000 173106.10-604100.6 Mag 14.2 Calc delta mag 10.5 Calc coord yes
CCDM
Ccdm 17311-6041 RComp Comp B Note1
Note2 Discov num HJ 4951 DRAs DDEs
R dRAs Year 1917 Theta 313 Rho 47.4
Obs 1 Vmag 11.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 17221S6036B
HIC
 
 
17311-6041 C
 
 
Coord arcsec 2000 173106.35-604056.4 Mag 13 Calc delta mag 9.3 Calc coord yes
 
 
17311-6041 D
 
 
Coord arcsec 2000 173106.64-604056.0 Mag 11.9 Calc delta mag 8.2 Calc coord yes
 
 
17311-6041 E
 
 
Coord arcsec 2000 173103.91-604021.3 Mag 10.96 PmRA -23.00 PmDE 7.0
Calc delta mag 7.26 Calc coord yes