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Doubles in session


Current system
17231-3407
DAW 73
HD 157156


Nearby doubles
21' : 17247-3412
HJ 4946AB

37' : 17251-3434
I 595

37' : 17258-3352
RST3095AB

45' : 17220-3325
B 1335

49' : 17251-3326
KPP3009

61' : 17195-3328
BRT1712

62' : 17184-3425
RST3084

65' : 17182-3347
BRT1711

66' : 17186-3333
TDT 301

67' : 17178-3406
B 1333

71' : 17205-3305
COO 212

71' : 17201-3308
PRO 156

71' : 17277-3324
RST3097

72' : 17241-3518
RST3090

74' : 17190-3459
MLO 4AB

75' : 17180-3329
B 1334

76' : 17265-3305
PRO 160

77' : 17287-3335
B 911

82' : 17266-3258
TOK 416

84' : 17167-3346
B 905

85' : 17249-3530
LDS 595

91' : 17301-3343
HWE 39AB

91' : 17158-3403
B 904

92' : 17158-3412
RST3080

92' : 17209-3535
B 907

94' : 17158-3344
SEE 322AB



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

17231-3407 DAW 73 (HD 157156)

 
 
17h 23m 07.13s -34° 07' 06.1" P.A. 40.00 sep 1.1 mag 9.87,10.74 Sp B3III(p)
 
 
Coord 2000 17231-3407 Discov num DAW  73 Comp Coord arcsec 2000 17 23 07.13 -34 07 06.1
Date first 1920 Date last 2015 Obs 5
Pa first 43 Pa last 40.2 P.A. Now (θ) 40.2°
Sep first 1.2 Sep last 1.124 Sep. Now (ρ) 1.124"
Mag pri 9.87 Mag sec 10.74 delta mag (ΔM) 0.87 Spectral class B3III(p) (blue-white)
Pri motion ra -004 Sec motion ra -004
Pri motion dec +000 Sec motion dec +000
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 157156 Constellation Scorpius SAO 208753 Tycho2 7370-00035-1
Gaia DR2 5976105220365548160 HD 157156
 
 
WDS 17231-3407 DAW 73 (HD 157156) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Daw1918a Ma - Dawson, B.H. .
Daw1918a Pub. La Plata Obs. 4, Pt.1, 1918
Daw1918b Ma - Dawson, B.H. (measure by Chaves, A.J.) .
Daw1918b Pub. La Plata Obs. 4, Pt.1, 1918
Daw1919 orb - Dawson, B.H. 1919AJ.....32..109D
Daw1919 AJ 32, 109, 1919
Daw1920 orb - Dawson, B.H. 1920AJ.....32..141D
Daw1920 AJ 32, 141, 1920
Daw1920b orb - Dawson, B.H. 1920AJ.....32..161D
Daw1920b AJ 32, 161, 1920
Daw1922 Ma - Dawson, B.H. .
Daw1922 Pub. La Plata Obs. 4, Pt.2, 1922
Daw1922b orb - Dawson, B.H. 1922AJ.....34...17D
Daw1922b AJ 34, 17, 1922
Daw1924a Ma - Dawson, B.H. 1924AJ.....35..147D
Daw1924a AJ 35, 147, 1924 (DAW 112 - 158; data also in Daw1937)
Daw1924b orb - Dawson, B.H. 1924AJ.....36...23D
Daw1924b AJ 36, 23, 1924
Daw1926 orb - Dawson, B.H. 1926AJ.....36..181D
Daw1926 AJ 36, 181, 1926
Daw1927A Ma - Dawson, B.H. 1927sdsc.book......
Daw1927A cited in SDS (Southern Double Star Cat.), 1927
Daw1933 orb - Dawson, B.H. 1933AJ.....43...15D
Daw1933 AJ 43, 15, 1933
Daw1937 Ma - Dawson, B.H. .
Daw1937 Pub. La Plata Obs. 6, 85, 1937
Daw9999 Ma - Dawson, B.H. ...................
Daw9999 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
17231-3407 DAW 73 1991 4 43 1.1 9.87 10.74 B3III(p) 172307.13-340706.1
17231-3407 DAW 73 2015 5 40 1.1 9.87 10.74 B3III(p) 172307.13-340706.1

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

 
 
WDS 17231-3407 DAW 73 (HD 157156) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17231-3407 DAW 73 (HD 157156) : MEASURES
 
 
No records found.

 
 
WDS 17231-3407 (HD 157156) : VIRTUAL EYEPIECE
 
 

17231-3407 DAW 73A mag 9.87 Sp B3III(p) 17231-3407 DAW 73B sep 1.1 P.A. 35.00 mag 10.74 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 17231-3407 (HD 157156) : ALADIN DSS IMAGE @ 17h 23m 07.13s -34° 07' 06.1"
 
 
 
 
WDS 17231-3407 DAW 73 (HD 157156) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17231-3407 DAW 73 distance=0' 17247-3412 HJ 4946AB distance=21' 17247-3412 MZA 36Aa,Ab distance=21' 17247-3412 SNA 71AF distance=21' 17247-3412 SNA 71AG distance=21' 17247-3412 SNA 71AH distance=21' 17247-3412 SNA 71AI distance=21' 17247-3412 SNA 71AJ distance=21' 17247-3412 WSI 62CD distance=21' 17247-3412 WSI 62CE distance=21' 17247-3412 DAW 216BC distance=21' 17251-3434 I 595 distance=37' 17258-3352 RST3095AB distance=37' 17258-3352 BRT3319AB,C distance=37' 17220-3325 B 1335 distance=45' 17251-3326 KPP3009 distance=49' 17195-3328 BRT1712 distance=61' 17184-3425 RST3084 distance=62' 17182-3347 BRT1711 distance=65' 17186-3333 TDT 301 distance=66' 17178-3406 B 1333 distance=67' 17205-3305 COO 212 distance=71' 17201-3308 PRO 156 distance=71' 17277-3324 RST3097 distance=71' 17241-3518 RST3090 distance=72' 17190-3459 MLO 4AB distance=74' 17190-3459 HJ 4935AC distance=74' 17190-3459 SEE 509AD distance=74' 17190-3459 SEE 509CD distance=74' 17190-3459 HJ 4935BC distance=74' 17190-3459 SEE 509BD distance=74' 17180-3329 B 1334 distance=75' 17265-3305 PRO 160 distance=76' 17287-3335 B 911 distance=77' 17266-3258 TOK 416 distance=82' 17167-3346 B 905 distance=84' 17249-3530 LDS 595 distance=85' 17301-3343 HWE 39AB distance=91' 17301-3343 HO 646AC distance=91' 17301-3343 HO 646AD distance=91' 17158-3403 B 904 distance=91' 17158-3412 RST3080 distance=92' 17209-3535 B 907 distance=92' 17158-3344 SEE 322AB distance=94' 17158-3344 SNA 66AC distance=94' 17234-3542 BRT1715 distance=95' 17310-3414 BRT1721 distance=99' 17204-3544 TDT 312 distance=103' 17153-3333 SNA 65Aa,Ab distance=104' 17153-3333 SNA 65AB distance=104' 17258-3228 RST1959 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 17231-3407 DAW 73 40 1.1
Show 17247-3412 HJ 4946 AB 110 16.4 21
Show 17247-3412 MZA 36 Aa,Ab 206 0.4 21
Show 17247-3412 SNA 71 AF 254 4.2 21
Show 17247-3412 SNA 71 AG 46 4.4 21
Show 17247-3412 SNA 71 AH 92 5.3 21
Show 17247-3412 SNA 71 AI 308 5.3 21
Show 17247-3412 SNA 71 AJ 295 6.9 21
Show 17247-3412 WSI 62 CD 205 3.5 21
Show 17247-3412 WSI 62 CE 182 3.6 21
Show 17247-3412 DAW 216 BC 321 4.9 21
Show 17251-3434 I 595 142 0.8 37
Show 17258-3352 RST3095 AB 346 0.3 37
Show 17258-3352 BRT3319 AB,C 77 3.5 37
Show 17220-3325 B 1335 11 3.1 45
Show 17251-3326 KPP3009 270 7.6 49
Show 17195-3328 BRT1712 183 5.2 61
Show 17184-3425 RST3084 109 0.3 62
Show 17182-3347 BRT1711 36 2.4 65
Show 17186-3333 TDT 301 84 0.6 66
Show 17178-3406 B 1333 335 0.2 67
Show 17205-3305 COO 212 320 13.5 71
Show 17201-3308 PRO 156 137 4.7 71
Show 17277-3324 RST3097 177 1.5 71
Show 17241-3518 RST3090 334 1.3 72
Show 17190-3459 MLO 4 AB 323 1.3 74
Show 17190-3459 HJ 4935 AC 142 32.6 74
Show 17190-3459 SEE 509 AD 285 92.0 74
Show 17190-3459 SEE 509 CD 294 119.7 74
Show 17190-3459 HJ 4935 BC 136 31.4 74
Show 17190-3459 SEE 509 BD 312 20.3 74
Show 17180-3329 B 1334 160 2.5 75
Show 17265-3305 PRO 160 325 11.3 76
Show 17287-3335 B 911 153 0.9 77
Show 17266-3258 TOK 416 27 1.1 82
Show 17167-3346 B 905 299 3.3 84
Show 17249-3530 LDS 595 277 25.8 85
Show 17301-3343 HWE 39 AB 322 4.3 91
Show 17301-3343 HO 646 AC 314 14.1 91
Show 17301-3343 HO 646 AD 28 59.0 91
Show 17158-3403 B 904 293 2.5 91
Show 17158-3412 RST3080 117 1.7 92
Show 17209-3535 B 907 253 3.5 92
Show 17158-3344 SEE 322 AB 277 0.2 94
Show 17158-3344 SNA 66 AC 272 7.0 94
Show 17234-3542 BRT1715 296 5.9 95
Show 17310-3414 BRT1721 16 3.9 99
Show 17204-3544 TDT 312 55 0.6 103
Show 17153-3333 SNA 65 Aa,Ab 273 0.0 104
Show 17153-3333 SNA 65 AB 133 5.1 104
Show 17258-3228 RST1959 195 0.3 105

 
 
WDS 17231-3407 : COMPONENTS
 
 
  A
B pa=35.0°
sep=1.05"
 
 
17231-3407 A
 
 
Componente originario normalizzato AB Name HD 157156 Coord arcsec 2000 172307.13-340706.1 Mag 9.87
Spectral class B3III(p) (blue-white) PmRA -4.00 PmDE 0.0 SAO 208753
Tycho2 7370-00035-1 HD 157156 DM CD-3312011
Tycho2
Tycho2 7370-00035-1 Pflag P RAmdeg 260.77971093 DEmdeg -34.11835944
PmRA -3.8 PmDE 0.0 E RAmdeg 17 E DEmdeg 22
E pmRA 2.1 E pmDE 2.1 EpRAm 1990.72 EpDEm 1989.75
Num 7 Q RAmdeg 1.2 Q DEmdeg 0.9 Q pmRA 1.3
Q pmDE 0.9 BTmag 10.243 E BTmag 0.033 VTmag 9.866
E VTmag 0.033 Prox 11 TYC T HIP
CCDM RAdeg 260.77968083 DEdeg -34.11839722 EpRA 1990 1.75
EpDE 1990 1.57 E RAdeg 16.8 E DEdeg 22.6 Posflg D
Corr 0.1
SAO
SAO 208753 DelFlag RA1950 PmRA1950 -0.0043
DE1950 PmDE1950 0.018 Vmag 9.4 SpType B9
Double code Source 40 CatNum 9177 DM CD-3312011
DMcomp BDsup HD 157156 M HD 0
GC RA1950rad 4.53703119 DE1950rad -0.59466086 PmRA2000 -0.0044
PmDE2000 0.019
CCDM
Ccdm 17231-3407 RComp Comp A Note1
Note2 Discov num DRAs 0.76 DDEs -4.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.6 Sp B9 PmNote *
PmRA -53 PmDE 18 Dm number -3312011 Cat1 CD
Name2 208753 Cat2 SAO HD 157156 M HD
ADS BDS M ADS BDS N IDS IDS 17165S3401A
HIC
 
 
17231-3407 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 172307.18-340705.2 Mag 10.74 PmRA -4.00
PmDE 0.0 Tycho2 7370-00035-2 Calc delta mag 0.87 Calc coord yes
Tycho2
Tycho2 7370-00035-2 Pflag P RAmdeg 260.77971093 DEmdeg -34.11835944
PmRA -3.8 PmDE 0.0 E RAmdeg 17 E DEmdeg 22
E pmRA 2.1 E pmDE 2.1 EpRAm 1990.72 EpDEm 1989.75
Num 7 Q RAmdeg 1.2 Q DEmdeg 0.9 Q pmRA 1.3
Q pmDE 0.9 BTmag 11.439 E BTmag 0.077 VTmag 10.744
E VTmag 0.069 Prox 11 TYC HIP
CCDM RAdeg 260.77993222 DEdeg -34.11817472 EpRA 1990 1.75
EpDE 1990 1.57 E RAdeg 38.7 E DEdeg 52.9 Posflg D
Corr 0.1
CCDM
Ccdm 17231-3407 RComp Comp B Note1
Note2 Discov num DAW 73 DRAs DDEs
R dRAs Year 1920 Theta 043 Rho 1.1
Obs 3 Vmag 11.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 17165S3401B
HIC