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Current system
19094+3034
HO 572
HD 178947


Nearby doubles
15' : 19103+3044
COU1020

17' : 19081+3031
HO 99

21' : 19088+3053
HO 571AB

22' : 19081+3048
STF2467

22' : 19078+3040
STF2465

23' : 19079+3043
HLM 16AB

25' : 19076+3043
BKO 59AB

26' : 19109+3018
JNN 121AB

29' : 19086+3008
TDT1248

35' : 19070+3018
TDT1229

42' : 19124+3021
STF2483AB

43' : 19062+3026
STF2454AB

50' : 19115+2953
J 1263AB

50' : 19079+2948
STF2466AB

53' : 19133+3020
HLM 18

53' : 19129+3100
HO 101

56' : 19058+3105
TDT1219

57' : 19138+3033
TDT1307

58' : 19104+2938
BRT 264

58' : 19135+3055
TDS 977

59' : 19124+3117
KPP4141

59' : 19124+3119
TDT1293

60' : 19138+3019
TDT1308

60' : 19128+2957
BRT 37

63' : 19059+3004
L 27

68' : 19131+2946
J 768



Selections
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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.

19094+3034 HO 572 (HD 178947)

 
 
19h 09m 23.13s +30° 33' 58.6" P.A. 314.00 sep 17.9 mag 6.90,12.40 Sp B8V dist. 473.93 pc (1545.96 l.y.)
 
 
Coord 2000 19094+3034 Discov num HO  572 Comp Coord arcsec 2000 19 09 23.13 +30 33 58.6
Date first 1896 Date last 2010 Obs 5
Pa first 316 Pa last 314.1 P.A. Now (θ) 314.1°
Sep first 18.4 Sep last 17.85 Sep. Now (ρ) 17.85"
Mag pri 6.90 Mag sec 12.40 delta mag (ΔM) 5.5 Spectral class B8V (blue-white)
Pri motion ra -004 Sec motion ra -004
Pri motion dec +001 Sec motion dec +002
Notes
rPM=0.224 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 178947 Constellation Lyra SAO 67883 HIP 94104
Tycho2 2640-00530-1 Gaia DR2 2042421639779130240 HD 178947 GC 26404
BD BD+30 3442 Distance 473.93 Distance ly 1545.96
 
 
WDS 19094+3034 HO 572 (HD 178947) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ho_1883 Ma j Hough, G.W. 1883MNRAS..43..371H
Ho_1883 MNRAS 43, 371, 1883 (data also in Ho_1890) 1890AN....125....1H
Ho_1884 Ma j Hough, G.W. 1884MNRAS..44..365H
Ho_1884 MNRAS 44, 365, 1884 (data also in Ho_1890) 1890AN....125....1H
Ho_1885 Ma j Hough, G.W. 1885MNRAS..45..417H
Ho_1885 MNRAS 45, 417, 1885 (data also in Ho_1890) 1890AN....125....1H
Ho_1886 Ma j Hough, G.W. 1886MNRAS..46..393H
Ho_1886 MNRAS 46, 393, 1886 (data also in Ho_1890) 1890AN....125....1H
Ho_1887 Ma j Hough, G.W. 1887AN....116..273H
Ho_1887 AN 116, 273, 1887
Ho_1890 Ma j Hough, G.W. 1890AN....125....1H
Ho_1890 AN 125, 1, 1890
Ho_1890b Ma j Hough, G.W. 1890AJ......9..177H
Ho_1890b AJ 9, 177, 1890 (some data also in Ho_1890 or Ho_1894b) 1890AN....125....1H
Ho_1894a Ma - Hough, G.W. 1894MNRAS..54..251H
Ho_1894a MNRAS 54, 251, 1894
Ho_1894b Ma j Hough, G.W. (HO 304 - 490) 1894AN....135..281H
Ho_1894b AN 135, 281, 1894
Ho_1894c Ma - Hough, G.W. (measure by Dembowski, H.) 1894AN....135..281H
Ho_1894c AN 135, 281, 1894
Ho_1899a Ma j Hough, G.W. 1899AN....149..65H
Ho_1899a AN 149, 65, 1899
Ho_1899b Ma - Hough, G.W. (measure by Burnham, S.W.) 1899AN....149..65H
Ho_1899b AN 149, 65, 1899
Ho_1907 Ma - Hough, G.W. 1907PFAO....3c...1D
Ho_1907 Pub. Univ. Penn. 3, Pt. 3, 1907 (measures sent to Doolittle)
Ho_1932A Ma - Hough, G.W. 1932QB821.A43......
Ho_1932A cited in ADS, 1932 (unpublished measures sent to Aitken in manuscript by Fox)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19094+3034 HO 572 1998 3 314 17.8 6.90 12.40 B8V D 190923.13+303358.6
19094+3034 HO 572 2002 4 315 18.3 6.90 12.40 B8V D 190923.13+303358.6
19094+3034 HO 572 2010 5 314 17.4 6.90 12.40 B8V 190923.13+303358.6

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

 
 
WDS 19094+3034 HO 572 (HD 178947) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19094+3034 HO 572 (HD 178947) : MEASURES
 
 
No records found.

 
 
WDS 19094+3034 (HD 178947) : VIRTUAL EYEPIECE
 
 

19094+3034 HO 572A mag 6.9 Sp B8V 19094+3034 HO 572B sep 16.6 P.A. 318.40 mag 12.4 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 19094+3034 (HD 178947) : ALADIN DSS IMAGE @ 19h 09m 23.13s +30° 33' 58.6"
 
 
 
 
WDS 19094+3034 HO 572 (HD 178947) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19094+3034 HO 572 distance=0' 19103+3044 COU1020 distance=15' 19081+3031 HO 99 distance=17' 19088+3053 HO 571AB distance=21' 19088+3053 BKO 60AC distance=21' 19081+3048 STF2467 distance=22' 19078+3040 STF2465 distance=22' 19079+3043 FYM 96KM distance=22' 19079+3043 HLM 16AB distance=23' 19079+3043 J 2945AC distance=23' 19079+3043 ABH 110AD distance=23' 19079+3043 ABH 110AE distance=23' 19079+3043 ABH 110AF distance=23' 19079+3043 HLM 16AG distance=23' 19079+3043 ABH 110AH distance=23' 19079+3043 ABH 110AI distance=23' 19079+3043 ABH 110AJ distance=23' 19079+3043 FYM 96AK distance=23' 19079+3043 FYM 96AL distance=23' 19079+3043 FYM 96AM distance=23' 19076+3043 BKO 59BC distance=25' 19076+3043 BKO 59AB distance=25' 19076+3043 BKO 59AD distance=25' 19109+3018 JNN 121AB distance=26' 19109+3018 JNN 121AC distance=26' 19086+3008 TDT1248 distance=29' 19075+3015 NSN 710BC distance=31' 19070+3018 TDT1229 distance=35' 19124+3021 GLP 16CD distance=41' 19124+3021 STF2483BC distance=41' 19124+3021 GLP 16BD distance=41' 19124+3021 STF2483AB distance=42' 19124+3021 STF2483AC distance=42' 19124+3021 GLP 16AD distance=42' 19062+3026 STF2454AB distance=43' 19062+3026 DRD 2AC distance=43' 19115+2953 J 1263BC distance=49' 19115+2953 J 1263AB distance=50' 19115+2953 GRF 6AD distance=50' 19079+2948 STF2466AB distance=50' 19079+2948 STF2466AC distance=50' 19133+3020 HLM 18 distance=53' 19129+3100 HO 101 distance=53' 19058+3105 TDT1219 distance=56' 19138+3033 TDT1307 distance=57' 19104+2938 BRT 264 distance=58' 19135+3055 TDS 977 distance=58' 19124+3117 KPP4141 distance=59' 19124+3119 TDT1293 distance=59' 19138+3019 TDT1308 distance=60' 19128+2957 BRT 37 distance=60' 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 19094+3034 HO 572 314 17.9
Show 19103+3044 COU1020 101 1.0 15
Show 19081+3031 HO 99 167 0.4 17
Show 19088+3053 HO 571 AB 214 12.4 21
Show 19088+3053 BKO 60 AC 165 11.6 21
Show 19081+3048 STF2467 262 10.5 22
Show 19078+3040 STF2465 249 1.2 22
Show 19079+3043 FYM 96 KM 11 8.1 22
Show 19079+3043 HLM 16 AB 309 8.0 23
Show 19079+3043 J 2945 AC 192 9.6 23
Show 19079+3043 ABH 110 AD 78 52.6 23
Show 19079+3043 ABH 110 AE 112 64.1 23
Show 19079+3043 ABH 110 AF 288 34.0 23
Show 19079+3043 HLM 16 AG 246 55.1 23
Show 19079+3043 ABH 110 AH 316 91.1 23
Show 19079+3043 ABH 110 AI 25 55.8 23
Show 19079+3043 ABH 110 AJ 225 83.0 23
Show 19079+3043 FYM 96 AK 140 43.7 23
Show 19079+3043 FYM 96 AL 222 57.0 23
Show 19079+3043 FYM 96 AM 130 39.2 23
Show 19076+3043 BKO 59 BC 88 7.3 25
Show 19076+3043 BKO 59 AB 48 10.1 25
Show 19076+3043 BKO 59 AD 175 6.0 25
Show 19109+3018 JNN 121 AB 129 0.3 26
Show 19109+3018 JNN 121 AC 71 0.7 26
Show 19086+3008 TDT1248 181 1.5 29
Show 19075+3015 NSN 710 BC 33 17.0 31
Show 19070+3018 TDT1229 340 2.5 35
Show 19124+3021 GLP 16 CD 130 48.7 41
Show 19124+3021 STF2483 BC 228 70.4 41
Show 19124+3021 GLP 16 BD 191 79.8 41
Show 19124+3021 STF2483 AB 317 10.0 42
Show 19124+3021 STF2483 AC 236 71.2 42
Show 19124+3021 GLP 16 AD 197 74.3 42
Show 19062+3026 STF2454 AB 291 1.3 43
Show 19062+3026 DRD 2 AC 261 31.3 43
Show 19115+2953 J 1263 BC 40 8.6 49
Show 19115+2953 J 1263 AB 247 38.8 50
Show 19115+2953 GRF 6 AD 176 167.8 50
Show 19079+2948 STF2466 AB 103 2.5 50
Show 19079+2948 STF2466 AC 141 98.7 50
Show 19133+3020 HLM 18 324 27.6 53
Show 19129+3100 HO 101 113 2.2 53
Show 19058+3105 TDT1219 261 0.4 56
Show 19138+3033 TDT1307 92 1.4 57
Show 19104+2938 BRT 264 39 6.6 58
Show 19135+3055 TDS 977 106 2.2 58
Show 19124+3117 KPP4141 265 1.4 59
Show 19124+3119 TDT1293 112 0.5 59
Show 19138+3019 TDT1308 164 0.5 60
Show 19128+2957 BRT 37 336 4.5 60

 
 
WDS 19094+3034 : COMPONENTS
 
 
  A
B pa=318.4°
sep=16.62"
 
 
19094+3034 A
 
 
Componente originario normalizzato AB Name HD 178947 Coord arcsec 2000 190923.13+303358.6 Mag 6.9
Spectral class B8V (blue-white) PmRA -4.00 PmDE 1.0 SAO 67883
HIP 94104 Tycho2 2640-00530-1 HD 178947 GC 26404
BD BD+30 3442
Tycho2
Tycho2 2640-00530-1 Pflag RAmdeg 287.34636107 DEmdeg 30.56627018
PmRA -4.6 PmDE -0.8 E RAmdeg 4 E DEmdeg 4
E pmRA 1.6 E pmDE 1.5 EpRAm 1991.27 EpDEm 1991.53
Num 9 Q RAmdeg 1.0 Q DEmdeg 0.8 Q pmRA 0.9
Q pmDE 0.8 BTmag 6.830 E BTmag 0.015 VTmag 6.917
E VTmag 0.010 Prox 999 TYC T HIP 94104
CCDM RAdeg 287.34637361 DEdeg 30.56627194 EpRA 1990 1.42
EpDE 1990 1.70 E RAdeg 3.9 E DEdeg 3.7 Posflg
Corr 0.1
SAO
SAO 67883 DelFlag RA1950 PmRA1950 -0.0003
DE1950 PmDE1950 0.01 Vmag 6.7 SpType B9
Double code Source 70 CatNum 26404 DM BD+30 3442
DMcomp BDsup HD 178947 M HD 0
GC 26404 RA1950rad 5.00669424 DE1950rad 0.53205426 PmRA2000 -0.0001
PmDE2000 0.009
Hipparcos
Catalog H HIP 94104 Proxy RAhms 19 09 23.13
DEdms +30 33 58.6 Vmag 6.92 VarFlag R Vmag H
RAdeg 287.346 DEdeg 30.5663 AstroRef Plx 2.21
CCDM 19094+3034 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 178947 BD BD+30 3442
CD CP Dm number +30 3442 VIred -0.06
SpType B9 R SpType Coord arcsec 2000 190923.13+303358.6
Hipparcos 2
HIP 94104 Sn 5 So 0 Nc 1
RArad 5.0151403339 DErad 0.533482084 Plx 2.11 PmRA -3.89
PmDE 0.77 E RArad 0.28 E DErad 0.34 E Plx 0.43
E pmRA 0.34 E pmDE 0.38 Hpmag 6.9063 E Hpmag 0.0006
SHp 0.008 VA 0 BV -0.066 E BV 0.007
VI -0.04
CCDM
Ccdm 19094+3034 RComp Comp A Note1
Note2 Discov num DRAs -0.92 DDEs -0.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.7 Sp B9 PmNote *
PmRA -21 PmDE 20 Dm number +30 3442 Cat1 BD
Name2 +30 1829 Cat2 AGK2/3 HD 178947 M HD
ADS BDS A12110 M ADS BDS N IDS IDS 19055N3024A
HIC 94104
 
 
19094+3034 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 190922.28+303411.0 Mag 12.4 PmRA -4.00
PmDE 2.0 Calc delta mag 5.5 Calc coord yes
CCDM
Ccdm 19094+3034 RComp Comp B Note1
Note2 Discov num HO 572 DRAs DDEs
R dRAs Year 1896 Theta 315 Rho 18.5
Obs 2 Vmag 12.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A12110 M ADS BDS N IDS IDS 19055N3024B
HIC