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Current system
21079+1851
HO 150
HD 201281


Nearby doubles
17' : 21081+1857
J 3125

23' : 21061+1836
TDS1116

31' : 21063+1824
BPM2326

31' : 21091+1906
COU 329

47' : 21041+1837
KPP 546

48' : 21039+1844
BRT2489

51' : 21107+1909
J 2339

53' : 21094+1809
SLN 89

54' : 21058+1939
J 2702

54' : 21052+1936
HDS3005

57' : 21083+1757
BPM2332

65' : 21080+1748
LDS4865

66' : 21056+1749
J 797

68' : 21089+1748
HU 365

70' : 21117+1821
LDS1051

73' : 21109+1801
COU 69

74' : 21120+1822
ZIE 12AB

78' : 21123+1919
TDT2825

80' : 21017+1851
UC 4363

81' : 21105+1958
STF2767

89' : 21121+1946
TDT2820

89' : 21132+1915
GWP3045

91' : 21010+1910
COU 523

95' : 21085+2025
J 574

96' : 21130+1802
J 577

96' : 21094+1721
STF2763AB



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

21079+1851 HO 150 (HD 201281)

 
 
21h 07m 14.39s +18° 51' 12.7" P.A. 136.00 sep 3.0 mag 8.70,11.20 Sp K0
 
 
Coord 2000 21079+1851 Discov num HO  150 Comp Coord arcsec 2000 21 07 14.39 +18 51 12.7
Date first 1882 Date last 2016 Obs 12
Pa first 136 Pa last 135.7 P.A. Now (θ) 135.7°
Sep first 3.0 Sep last 3.038 Sep. Now (ρ) 3.038"
Mag pri 8.70 Mag sec 11.20 delta mag (ΔM) 2.5 Spectral class K0 (yellow-orange)
Pri motion ra +007 Sec motion ra +007
Pri motion dec +006 Sec motion dec +006
Notes T (Parallax indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 201281 Constellation Delphinus SAO 106860 Tycho2 1657-00225-1
Gaia DR2 1789102647587177856 HD 201281 ADS 14668 DM BD+18 4710
 
 
WDS 21079+1851 HO 150 (HD 201281) : 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
21079+1851 HO 150 2001 10 137 2.8 8.70 11.20 F8 210755.13+185101.3
21079+1851 HO 150 2016 12 136 3.0 8.70 11.20 K0 T 210714.39+185112.7

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

 
 
WDS 21079+1851 HO 150 (HD 201281) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21079+1851 HO 150 (HD 201281) : MEASURES
 
 
No records found.

 
 
WDS 21079+1851 (HD 201281) : VIRTUAL EYEPIECE
 
 

21079+1851 HO 150A mag 8.7 Sp K0 21079+1851 HO 150B sep 3.0 P.A. 137.30 mag 11.2 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21079+1851 (HD 201281) : ALADIN DSS IMAGE @ 21h 07m 14.39s +18° 51' 12.7"
 
 
 
 
WDS 21079+1851 HO 150 (HD 201281) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21079+1851 HO 150 distance=0' 21081+1857 J 3125 distance=17' 21061+1836 TDS1116 distance=23' 21063+1824 BPM2326 distance=31' 21091+1906 COU 329 distance=31' 21041+1837 KPP 546 distance=47' 21039+1844 BRT2489 distance=48' 21107+1909 J 2339 distance=51' 21094+1809 SLN 89 distance=53' 21058+1939 J 2702 distance=54' 21052+1936 HDS3005 distance=54' 21083+1757 BPM2332 distance=57' 21080+1748 LDS4865 distance=65' 21056+1749 J 797 distance=66' 21089+1748 HU 365 distance=68' 21117+1821 LDS1051 distance=70' 21109+1801 COU 69 distance=73' 21120+1822 ZIE 12AB distance=74' 21120+1822 ZIE 12AC distance=74' 21123+1919 TDT2825 distance=78' 21017+1851 UC 4363 distance=80' 21105+1958 STF2767 distance=81' 21121+1946 TDT2820 distance=89' 21132+1915 GWP3045 distance=89' 21010+1910 COU 523 distance=91' 21085+2025 J 574 distance=95' 21130+1802 J 577 distance=96' 21094+1721 STF2763BC distance=96' 21094+1721 STF2763AB distance=96' 21087+1717 HEI 184 distance=96' 21089+1715 HEI 185 distance=100' 21005+1920 BU 1497 distance=101' 21013+1757 BOY 11 distance=102' 21093+2029 J 575 distance=104' 21088+1709 TDT2783 distance=105' 21138+1942 GWP3047 distance=107' 21008+1756 TDT2692 distance=107' 21041+1712 GWP3033 distance=109' 21132+2006 LDS4870 distance=113' 21125+1727 BPMA252 distance=113' 21079+1656 UC 4385 distance=116' 21029+1708 BPMA250 distance=120' 21095+2047 GRV 426 distance=121' 21141+1741 BPM2349 distance=121' 21111+1704 HEI 187 distance=121' 21102+2045 RAO 25 distance=122' 20587+1833 RAO 444 distance=123' 20587+1823 HU 363 distance=125' 21111+1659 KPP 486 distance=125' 21148+1746 SHN 249 distance=127' 20599+1741 KPP1329 distance=127' 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 21079+1851 HO 150 136 3.0
Show 21081+1857 J 3125 259 4.7 17
Show 21061+1836 TDS1116 265 1.2 23
Show 21063+1824 BPM2326 314 67.8 31
Show 21091+1906 COU 329 99 0.6 31
Show 21041+1837 KPP 546 61 5.1 47
Show 21039+1844 BRT2489 246 5.4 48
Show 21107+1909 J 2339 249 7.2 51
Show 21094+1809 SLN 89 15 2.1 53
Show 21058+1939 J 2702 178 5.4 54
Show 21052+1936 HDS3005 14 0.3 54
Show 21083+1757 BPM2332 327 113.5 57
Show 21080+1748 LDS4865 106 147.9 65
Show 21056+1749 J 797 214 4.1 66
Show 21089+1748 HU 365 19 1.0 68
Show 21117+1821 LDS1051 88 298.5 70
Show 21109+1801 COU 69 330 1.5 73
Show 21120+1822 ZIE 12 AB 26 13.3 74
Show 21120+1822 ZIE 12 AC 268 298.4 74
Show 21123+1919 TDT2825 299 0.4 78
Show 21017+1851 UC 4363 216 6.4 80
Show 21105+1958 STF2767 28 2.5 81
Show 21121+1946 TDT2820 107 0.7 89
Show 21132+1915 GWP3045 147 18.4 89
Show 21010+1910 COU 523 139 0.9 91
Show 21085+2025 J 574 47 3.1 95
Show 21130+1802 J 577 19 2.4 96
Show 21094+1721 STF2763 BC 227 30.2 96
Show 21094+1721 STF2763 AB 293 17.1 96
Show 21087+1717 HEI 184 62 2.9 96
Show 21089+1715 HEI 185 35 0.1 100
Show 21005+1920 BU 1497 337 49.3 101
Show 21013+1757 BOY 11 94 0.3 102
Show 21093+2029 J 575 181 10.9 104
Show 21088+1709 TDT2783 327 1.1 105
Show 21138+1942 GWP3047 184 7.7 107
Show 21008+1756 TDT2692 155 0.6 107
Show 21041+1712 GWP3033 36 12.1 109
Show 21132+2006 LDS4870 32 369.6 113
Show 21125+1727 BPMA252 173 255.4 113
Show 21079+1656 UC 4385 334 56.4 116
Show 21029+1708 BPMA250 39 202.4 120
Show 21095+2047 GRV 426 129 37.4 121
Show 21141+1741 BPM2349 124 51.8 121
Show 21111+1704 HEI 187 255 1.2 121
Show 21102+2045 RAO 25 211 3.2 122
Show 20587+1833 RAO 444 194 1.4 123
Show 20587+1823 HU 363 101 0.8 125
Show 21111+1659 KPP 486 334 3.9 125
Show 21148+1746 SHN 249 -1 0.2 127
Show 20599+1741 KPP1329 129 10.1 127

 
 
WDS 21079+1851 : COMPONENTS
 
 
  A
B pa=137.3°
sep=2.96"
 
 
21079+1851 A
 
 
Componente originario normalizzato AB Name HD 201281 Coord arcsec 2000 210714.39+185112.7 Mag 8.7
Spectral class K0 (yellow-orange) PmRA 7.00 PmDE 6.0 SAO 106860
Tycho2 1657-00225-1 HD 201281 ADS 14668 DM BD+18 4710
Tycho2
Tycho2 1657-00225-1 Pflag RAmdeg 316.81020672 DEmdeg 18.85372347
PmRA 7.1 PmDE 9.9 E RAmdeg 17 E DEmdeg 21
E pmRA 1.4 E pmDE 1.4 EpRAm 1989.97 EpDEm 1989.04
Num 3 Q RAmdeg 1.2 Q DEmdeg 1.2 Q pmRA 1.1
Q pmDE 1.2 BTmag 10.898 E BTmag 0.051 VTmag 9.554
E VTmag 0.024 Prox 999 TYC T HIP
CCDM RAdeg 316.81018917 DEdeg 18.85370000 EpRA 1990 1.60
EpDE 1990 1.42 E RAdeg 17.3 E DEdeg 21.4 Posflg
Corr 0.0
SAO
SAO 106860 DelFlag RA1950 PmRA1950 -0.0003
DE1950 PmDE1950 -0.026 Vmag 8.5 SpType F8
Double code Source 28 CatNum 8597 DM BD+18 4710
DMcomp BDsup HD 201281 M HD 0
GC RA1950rad 5.52228694 DE1950rad 0.32547422 PmRA2000 -0.0003
PmDE2000 -0.029
CCDM
Ccdm 21079+1851 RComp Comp A Note1
Note2 Discov num DRAs 1.08 DDEs 1.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.7 Sp F8 PmNote *
PmRA 4 PmDE -26 Dm number +18 4710 Cat1 BD
Name2 +18 2133 Cat2 AGK2/3 HD 201281 M HD
ADS BDS A14668 M ADS BDS N IDS IDS 21033N1827A
HIC
 
 
21079+1851 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 210714.53+185110.5 Mag 11.2 PmRA 7.00
PmDE 6.0 Calc delta mag 2.5 Calc coord yes
CCDM
Ccdm 21079+1851 RComp Comp B Note1
Note2 Discov num HO 150 DRAs DDEs
R dRAs Year 1882 Theta 136 Rho 2.8
Obs 7 Vmag 11.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14668 M ADS BDS N IDS IDS 21033N1827B
HIC