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Current system
18475+1537
GII 20 AB


Nearby doubles
5' : 18477+1539
BPM 831

9' : 18470+1541
GII 5

15' : 18484+1542
BPMA 61

19' : 18484+1524
J 2150

23' : 18481+1557
BPM 835

23' : 18471+1515
HJ 1344

27' : 18491+1524
BPM 842

38' : 18456+1604
BPM 820

42' : 18500+1519
YSC 12AB

44' : 18489+1615
STF2400AB

46' : 18504+1554
BPM 860

47' : 18506+1525
BPM 862

48' : 18502+1603
RAO 399

49' : 18449+1606
HEI 173

52' : 18459+1450
HEI 397

54' : 18496+1621
BPM 849

58' : 18439+1601
OSO 103AB

60' : 18510+1505
BPMA 63

60' : 18506+1458
BPM 863

60' : 18515+1507
OL 105

61' : 18497+1629
BRT1311

63' : 18510+1501
HDS2673

65' : 18503+1626
BPM 859

65' : 18517+1600
BPM 870

66' : 18464+1641
HEI 261

68' : 18462+1432
BPM 822



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.

18475+1537 GII 20 AB

 
 
18h 47m 28.61s +15° 36' 59.7" P.A. 184.00 sep 0.3 mag 9.33,12.80 Sp F5
 
 
Coord 2000 18475+1537 Discov num GII  20 Comp AB Coord arcsec 2000 18 47 28.61 +15 36 59.7
Date first 2009 Date last 2013 Obs 2
Pa first 103 Pa last 183.9 P.A. Now (θ) 183.9°
Sep first 8.1 Sep last 0.272 Sep. Now (ρ) 0.272"
Mag pri 9.33 Mag sec 12.80 delta mag (ΔM) 3.47 Spectral class F5 (yellow-white)
Pri motion ra +003 Sec motion ra
Pri motion dec -017 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18475+1537 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 104102 18 47 29 +15 36 60 HU 584 Aa,Ab 2008 19 5 0.3 10.03 10.02 0.01
Show 104102 18 47 29 +15 36 60 GII 20 AB 2013 2 184 0.3 9.33 12.80 3.47 <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules SAO 104102 Tycho2 1583-01533-1 HD 229505
 
 
WDS 18475+1537 GII 20 AB : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Gii1991 Ma j Gili, R. 1991AN....312...41G
Gii1991 AN 312, 41, 1991
Gii1994 M+ j Gili, R. (Couteau & Gili) 1994A&AS..106..377G
Gii1994 +C A&AS 106, 377, 1994
Gii1997 M+ j Gili, R. & Couteau, P. 1997A&AS..126....1G
Gii1997 +C A&AS 126, 1, 1997
Gii2001 C j Gili, R. & Bonneau, D. 2001A&A...378..954G
Gii2001 A&A 378, 954, 2001
Gii2008 C j Gili, R. 2008IAUDS.165....1G
Gii2008 Inf. Circ. 165, 1, 2008
Gii2009 S j Gili, R. 2009IAUDS.168....1G
Gii2009 +orb Inf. Circ. 168, 1, 2009
Gii2009b C j Gili, R. & Agati, J.-L. 2009O&T....73....9G
Gii2009b +S Obs. et Travaux 73, 9, 2009
Gii2009c C j Gili, R. & Agati, J.-L. 2009O&T....74...14G
Gii2009c +S Obs. et Travaux 74, 14, 2009
Gii2012 S j Gili, R. & Prieur, J.-L. 2012AN....333..727G
Gii2012 +Cl AN 333, 727, 2012
Gii2016 S j Gili, R. 2016IAUDS.190....4G
Gii2016 +Cl Inf. Circ. 190, 4, 2016
Gii2016b Cl Gili, R.
Gii2016b private comm. (email 27 Aug 2016)
Gii2020 S Gili, R., Prieur, J.-L., Rivet, J.-P., Scardia, M., Pansecchi, L., Argyle, R.W., 2020AN....341..441G
Gii2020 +Cl Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D. & Maccarini, L.
Gii2020 AN 341, 441, 2020
Gii2021 S Gili, R., Prieur, J.-L., Rivet, J.-P., Vakili, F., Scardia, M., Pansecchi, L., 2021AN....342..865G
Gii2021 Argyle, R.W., Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D.,
Gii2021 Maccarini, L. & Serot, J.
Gii2021 AN 342, 865, 2021
Gii2022 S Gili, R., Prieur, J.-L., Rivet, J.-P., Vakili, F., Scardia, M., Pansecchi, L., 2022AN....34324008G
Gii2022 Argyle, R.W., Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D.,
Gii2022 Maccarini, L. & Serot, J.
Gii2022 AN 343, 24008, 2022
Gii2022 errata for Gii2022 (source of code "P" measures in wds) 2023AN....34437001G
Gii2022 AN 344, 37001, 2023
Hu_1896 not - Hussey, W.F. 1896PASP....8..183H
Hu_1896 PASP 8, 183, 1896
Hu_1897 Ma - Hussey, W.J. 1897AJ.....17...97H
Hu_1897 AJ 17, 97, 1897
Hu_1898 Ma j Hussey, W.J. 1898AJ.....18..145H
Hu_1898 AJ 18, 145, 1898
Hu_1899 Ma j Hussey, W.J. 1899AN....150..175H
Hu_1899 AN 150, 175, 1899
Hu_1900a Ma - Hussey, W.J. 1900AJ.....20..192H
Hu_1900a AJ 20, 192, 1900
Hu_1900b Ma - Hussey, W.J. 1900AJ.....21...35H
Hu_1900b AJ 21, 35, 1900
Hu_1900c Ma j Hussey, W.J. 1900AN....152..329H
Hu_1900c AN 152, 329, #3645, 1900
Hu_1901a Ma j Hussey, W.J. 1901PLicO...5.....H
Hu_1901a +orb Pub. Lick Obs. 5, 1901
Hu_1901b Ma j Hussey, W.J. 1901LicOB...1...82H
Hu_1901b Lick Obs. Bull. 1, 82, 1901
Hu_1902a Ma j Hussey, W.J. 1902LicOB...1..161H
Hu_1902a Lick Obs. Bull. 1, 161, 1902
Hu_1902b Ma j Hussey, W.J. 1902LicOB...2....1H
Hu_1902b Lick Obs. Bull. 2, 1, 1902
Hu_1903a Ma j Hussey, W.J. 1903LicOB...2...73H
Hu_1903a Lick Obs. Bull. 2, 73, 1903
Hu_1903b Ma j Hussey, W.J. 1903LicOB...2..115H
Hu_1903b Lick Obs. Bull. 2, 115, 1903
Hu_1904a Ma j Hussey, W.J. 1904LicOB...2..180H
Hu_1904a Lick Obs. Bull. 2, 180, 1904
Hu_1904b Ma - Hussey, W.J. 1904LicOB...3...53H
Hu_1904b Lick Obs. Bull. 3, 53, 1904
Hu_1905a Ma - Hussey, W.J. 1905LicOB...3...95H
Hu_1905a Lick Obs. Bull. 3, 95, 1905
Hu_1905b Ma - Hussey, W.J. 1905LicOB...3..116H
Hu_1905b Lick Obs. Bull. 3, 116, 1905
Hu_1905c Ma - Hussey, W.J. 1905LicOB...3..151H
Hu_1905c Lick Obs. Bull. 3, 151, 1905
Hu_1906A Ma - Hussey, W.J. 1906MmRAS..56....1L
Hu_1906A cited by Lewis (MemRAS 56, 1, 1906)
Hu_1906B Ma - Hussey, W.J. 1906QB821.B972.....
Hu_1906B cited in BDS (Burnham Double Star Cat.), 1906
Hu_1907 Ma - Hussey, W.J. 1907LicOB...4..124H
Hu_1907 Lick Obs. Bull. 4, 124, 1907
Hu_1910 Ma - Hussey, W.J. 1910AJ.....21..105H
Hu_1910 AJ 21, 105, 1910
Hu_1911 Ma - Hussey, W.J. 1911LicOB...6..182H
Hu_1911 Lick Obs. Bull. 6, 182, 1911
Hu_1912a Ma - Hussey, W.J. 1915POMic...1..147H
Hu_1912a Pub. Univ. Michigan Obs. 1, 147, 1912
Hu_1912b Ma - Hussey, W.J. 1915POMic...1..160H
Hu_1912b Pub. Univ. Michigan Obs. 1, 160, 1912
Hu_1912c Ma - Hussey, W.J. 1915POMic...1..167H
Hu_1912c Pub. Univ. Michigan Obs. 1, 167, 1912
Hu_1927A Ma - Hussey, W.J. 1927sdsc.book......
Hu_1927A cited in SDS (Southern Double Star Cat.), 1927
Hu_1932A Ma - Hussey, W.J. 1932QB821.A43......
Hu_1932A cited in ADS (Aitken Double Star Cat.), 1932
Hu_9999 Ma - Hussey, W.J. ...................
Hu_9999 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
18475+1537 GII 20 AB 2009 1 103 8.1 10.00 12.80 184728.61+153659.7
18475+1537 GII 20 AB 2013 2 184 0.3 9.33 12.80 F5 184728.61+153659.7

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

 
 
WDS 18475+1537 GII 20 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18475+1537 GII 20 AB : MEASURES
 
 
No records found.

 
 
WDS 18475+1537 : VIRTUAL EYEPIECE
 
 

18475+1537 GII 20A mag 9.33 Sp F5 18475+1537 HU 584Ab sep 0.3 P.A. 4.50 mag 10.02 18475+1537 GII 20B sep 0.3 P.A. 183.80 mag 12.8 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18475+1537 : ALADIN DSS IMAGE @ 18h 47m 28.61s +15° 36' 59.7"
 
 
 
 
WDS 18475+1537 GII 20 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18475+1537 GII 20AB distance=0' 18477+1539 BPM 831 distance=5' 18470+1541 GII 5 distance=9' 18484+1542 BPMA 61 distance=15' 18484+1524 J 2150 distance=19' 18481+1557 BPM 835 distance=23' 18471+1515 HJ 1344 distance=23' 18491+1524 BPM 842 distance=27' 18456+1604 BPM 820 distance=38' 18500+1519 YSC 12AB distance=42' 18500+1519 LLO 16AC distance=42' 18500+1519 LLO 16AD distance=42' 18489+1615 STF2400BC distance=44' 18489+1615 STF2400AB distance=44' 18489+1615 STF2400AD distance=44' 18489+1615 STF2400AC distance=44' 18489+1615 STF2400A,BC distance=44' 18504+1554 BPM 860 distance=46' 18506+1525 BPM 862 distance=47' 18502+1603 RAO 399 distance=48' 18449+1606 HEI 173 distance=49' 18459+1450 HEI 397 distance=52' 18496+1621 BPM 849 distance=54' 18439+1601 OSO 103AB distance=58' 18439+1601 OSO 103AC distance=58' 18439+1601 OSO 103AD distance=58' 18439+1601 OSO 103AE distance=58' 18439+1601 OSO 103AF distance=58' 18510+1505 BPMA 63 distance=60' 18506+1458 BPM 863 distance=60' 18515+1507 OL 105 distance=60' 18497+1629 BRT1311 distance=61' 18510+1501 HDS2673 distance=63' 18503+1626 BPM 859 distance=65' 18517+1600 BPM 870 distance=65' 18464+1641 HEI 261 distance=66' 18462+1432 BPM 822 distance=68' 18498+1639 BPM 853 distance=71' 18453+1434 BPM 818 distance=71' 18487+1426 BPM 839BC distance=73' 18487+1426 BPM 838AB distance=74' 18476+1655 J 2678 distance=78' 18472+1655 ARN 75 distance=78' 18481+1656 BPM 834 distance=80' 18461+1655 HEI 259 distance=81' 18436+1439 BPM 809 distance=81' 18466+1659 STF2385AB distance=84' 18466+1659 MAD 10AC distance=84' 18463+1659 HEI 260 distance=85' 18500+1420 BPM 854 distance=86' 18493+1416 BPM 845 distance=86' 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 18475+1537 HU 584 Aa,Ab 5 0.3
Show 18475+1537 GII 20 AB 184 0.3
Show 18477+1539 BPM 831 340 117.9 5
Show 18470+1541 GII 5 102 8.3 9
Show 18484+1542 BPMA 61 54 281.7 15
Show 18484+1524 J 2150 34 19.9 19
Show 18481+1557 BPM 835 272 105.6 23
Show 18471+1515 HJ 1344 207 13.0 23
Show 18491+1524 BPM 842 278 103.7 27
Show 18456+1604 BPM 820 18 61.6 38
Show 18500+1519 YSC 12 AB 35 0.5 42
Show 18500+1519 LLO 16 AC 19 11.1 42
Show 18500+1519 LLO 16 AD 225 15.7 42
Show 18489+1615 STF2400 BC 201 1.0 44
Show 18489+1615 STF2400 AB 159 9.7 44
Show 18489+1615 STF2400 AD 157 0.4 44
Show 18489+1615 STF2400 AC 161 10.9 44
Show 18489+1615 STF2400 A,BC 160 11.0 44
Show 18504+1554 BPM 860 174 80.3 46
Show 18506+1525 BPM 862 276 60.3 47
Show 18502+1603 RAO 399 140 2.8 48
Show 18449+1606 HEI 173 305 3.7 49
Show 18459+1450 HEI 397 141 1.1 52
Show 18496+1621 BPM 849 245 101.4 54
Show 18439+1601 OSO 103 AB 121 5.0 58
Show 18439+1601 OSO 103 AC 44 8.9 58
Show 18439+1601 OSO 103 AD 25 14.1 58
Show 18439+1601 OSO 103 AE 150 16.4 58
Show 18439+1601 OSO 103 AF 233 17.4 58
Show 18510+1505 BPMA 63 327 156.2 60
Show 18506+1458 BPM 863 270 86.3 60
Show 18515+1507 OL 105 157 4.7 60
Show 18497+1629 BRT1311 204 4.3 61
Show 18510+1501 HDS2673 299 0.1 63
Show 18503+1626 BPM 859 264 110.0 65
Show 18517+1600 BPM 870 335 90.7 65
Show 18464+1641 HEI 261 102 2.4 66
Show 18462+1432 BPM 822 228 116.6 68
Show 18498+1639 BPM 853 163 102.8 71
Show 18453+1434 BPM 818 85 115.9 71
Show 18487+1426 BPM 839 BC 319 107.1 73
Show 18487+1426 BPM 838 AB 69 91.1 74
Show 18476+1655 J 2678 27 5.4 78
Show 18472+1655 ARN 75 26 65.3 78
Show 18481+1656 BPM 834 51 119.5 80
Show 18461+1655 HEI 259 248 1.9 81
Show 18436+1439 BPM 809 337 99.3 81
Show 18466+1659 STF2385 AB 30 5.5 84
Show 18466+1659 MAD 10 AC 26 71.9 84
Show 18463+1659 HEI 260 301 2.2 85
Show 18500+1420 BPM 854 271 66.2 86

 
 
WDS 18475+1537 : COMPONENTS
 
 
  A Ab
Ab pa=4.5°
sep=0.34"
 
B pa=183.8°
sep=0.27"
pa=184.2°
sep=0.62"
 
 
18475+1537 A
 
 
Coord arcsec 2000 184728.61+153659.7 Mag 9.33 Spectral class F5 (yellow-white) PmRA 3.00
PmDE -17.0 SAO 104102 Tycho2 1583-01533-1 HD 229505
DM BD+15 3566
Tycho2
Tycho2 1583-01533-1 Pflag RAmdeg 281.86921588 DEmdeg 15.61663350
PmRA 1.0 PmDE -18.8 E RAmdeg 12 E DEmdeg 13
E pmRA 1.2 E pmDE 1.2 EpRAm 1989.84 EpDEm 1989.45
Num 7 Q RAmdeg 1.4 Q DEmdeg 1.4 Q pmRA 1.4
Q pmDE 1.3 BTmag 9.854 E BTmag 0.026 VTmag 9.328
E VTmag 0.021 Prox 999 TYC T HIP
CCDM RAdeg 281.86921528 DEdeg 15.61667556 EpRA 1990 1.76
EpDE 1990 1.76 E RAdeg 13.3 E DEdeg 14.3 Posflg
Corr 0.0
SAO
SAO 104102 DelFlag RA1950 PmRA1950 -0.0002
DE1950 PmDE1950 -0.016 Vmag 8.8 SpType F5
Double code Source 28 CatNum 7013 DM BD+15 3566
DMcomp BDsup HD 229505 M HD 0
GC RA1950rad 4.9096887 DE1950rad 0.27158876 PmRA2000 -0.0001
PmDE2000 -0.016
CCDM
Ccdm 18475+1537 RComp Comp A Note1
Note2 Discov num DRAs -1.45 DDEs -0.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.9 Sp F5 PmNote *
PmRA -2 PmDE -26 Dm number +15 3566 Cat1 BD
Name2 +15 1923 Cat2 AGK2/3 HD 229505 M HD
ADS BDS A11683 M ADS BDS N IDS IDS 18430N1530A
HIC
 
 
18475+1537 Ab
 
 
Coord arcsec 2000 184728.61+153700.0 Mag 10.02 PmRA 1.00 PmDE -19.0
Calc delta mag 0.01 Calc coord yes
 
 
18475+1537 B
 
 
Coord arcsec 2000 184728.61+153659.4 Mag 12.8 Calc delta mag 2.77 Calc coord yes
CCDM
Ccdm 18475+1537 RComp Comp B Note1
Note2 Discov num HU 584 DRAs DDEs
R dRAs Year 1960 Theta 023 Rho 0.4
Obs 9 Vmag 9.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11683 M ADS BDS N IDS IDS 18430N1530B
HIC