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Current system
12069+2030
HO 255
HD 105217


Nearby doubles
4' : 12065+2027
FYM 231

15' : 12059+2027
RAO 270

51' : 12046+1952
SLW 680

54' : 12033+2045
TDS8195

54' : 12053+1941
ZIE 8

62' : 12051+1933
GIC 103AB

67' : 12023+2047
A 2164

69' : 12043+2128
STF1596

70' : 12119+2024
HJ 2601

77' : 12022+2108
A 2163

83' : 12089+2147
LDS 930AB

85' : 12049+2150
LDS4177

86' : 12025+2128
TDS8185

87' : 12019+1939
CVR 641

90' : 12007+2051
BDK 5

94' : 12039+2152
FYM 232

97' : 12015+2127
CBL 368

98' : 12024+1916
A 2165

98' : 12025+2145
HO 535

101' : 12034+2157
BRT2413

102' : 12101+1859
LSC 143AB

103' : 12136+2112
UC 2296

103' : 12102+1858
A 2057

107' : 12137+2118
HU 570

108' : 11594+2052
HO 534

116' : 12130+2146
JNN 277



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.

12069+2030 HO 255 (HD 105217)

 
 
12h 06m 55.67s +20° 29' 34.6" P.A. 134.00 sep 2.7 mag 8.99,12.26 Sp G5 dist. 198.02 pc (645.94 l.y.)
 
 
Coord 2000 12069+2030 Discov num HO  255 Comp Coord arcsec 2000 12 06 55.67 +20 29 34.6
Date first 1887 Date last 2016 Obs 14
Pa first 133 Pa last 134 P.A. Now (θ) 134°
Sep first 2.5 Sep last 2.7 Sep. Now (ρ) 2.7"
Mag pri 8.99 Mag sec 12.26 delta mag (ΔM) 3.27 Spectral class G5 (yellow)
Pri motion ra -032 Sec motion ra -030
Pri motion dec +006 Sec motion dec +005
Notes
rPM=0.069 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 105217 Constellation Coma Berenices SAO 82140 HIP 59078
Tycho2 1444-00516-1 Gaia DR2 3951698808031478912 HD 105217 BD BD+21 2392
Distance 198.02 Distance ly 645.94
 
 
WDS 12069+2030 HO 255 (HD 105217) : 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
12069+2030 HO 255 1991 12 132 2.7 8.99 12.26 G5 120655.67+202934.6
12069+2030 HO 255 2016 13 134 2.7 8.99 12.26 G5 120655.67+202934.6

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

 
 
WDS 12069+2030 HO 255 (HD 105217) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12069+2030 HO 255 (HD 105217) : MEASURES
 
 
No records found.

 
 
WDS 12069+2030 (HD 105217) : VIRTUAL EYEPIECE
 
 

12069+2030 HO 255A mag 8.99 Sp G5 12069+2030 HO 255B sep 2.6 P.A. 135.90 mag 12.26 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 12069+2030 (HD 105217) : ALADIN DSS IMAGE @ 12h 06m 55.67s +20° 29' 34.6"
 
 
 
 
WDS 12069+2030 HO 255 (HD 105217) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12069+2030 HO 255 distance=0' 12065+2027 FYM 231 distance=4' 12059+2027 RAO 270 distance=15' 12046+1952 SLW 680 distance=51' 12033+2045 TDS8195 distance=54' 12053+1941 ZIE 8 distance=54' 12051+1933 GIC 103AB distance=62' 12023+2047 A 2164 distance=67' 12043+2128 STF1596 distance=69' 12119+2024 HJ 2601 distance=70' 12022+2108 A 2163 distance=77' 12089+2147 HDS1714Aa,Ab distance=83' 12089+2147 LDS 930AB distance=83' 12049+2150 LDS4177 distance=85' 12025+2128 TDS8185 distance=86' 12019+1939 CVR 641 distance=87' 12007+2051 BDK 5 distance=90' 12039+2152 FYM 232 distance=94' 12015+2127 CBL 368 distance=97' 12024+1916 A 2165 distance=98' 12025+2145 HO 535 distance=98' 12034+2157 BRT2413 distance=101' 12101+1859 LEP 51AC distance=102' 12101+1859 LSC 143AB distance=102' 12136+2112 UC 2296 distance=103' 12102+1858 A 2057 distance=103' 12137+2118 HU 570 distance=107' 11594+2052 HO 534 distance=108' 12130+2146 JNN 277 distance=116' 12100+1846 LDS 931 distance=118' 12149+1947 COU 178 distance=120' 12138+2143 HU 569 distance=121' 12021+2211 SKF2697 distance=122' 12046+2232 COU 92 distance=127' 11574+2019 DVG 34 distance=135' 11571+2026 DVG 33 distance=138' 12064+1812 HDS1708AB distance=138' 12064+1812 GII 185Aa,Ab distance=138' 12165+1953 CVR1421 distance=140' 11570+2023 DVG 32 distance=141' 12113+2238 BRT2414 distance=142' 12121+2232 SKF2012 distance=143' 12039+1811 GWP1740 distance=146' 12071+2255 GUR 29 distance=146' 11561+2015 BRT2289 distance=153' 12006+1820 HDS1688AB distance=158' 12006+1820 GII 182Aa,Ab distance=158' 12111+2257 COU 94 distance=158' 12058+2310 COU 93 distance=161' 12060+2312 WSI 103 distance=164' 12041+2312 POU3120 distance=167' 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 12069+2030 HO 255 134 2.7
Show 12065+2027 FYM 231 92 5.1 4
Show 12059+2027 RAO 270 110 0.9 15
Show 12046+1952 SLW 680 337 14.1 51
Show 12033+2045 TDS8195 61 0.2 54
Show 12053+1941 ZIE 8 355 0.5 54
Show 12051+1933 GIC 103 AB 144 117.3 62
Show 12023+2047 A 2164 122 1.5 67
Show 12043+2128 STF1596 234 3.4 69
Show 12119+2024 HJ 2601 67 26.7 70
Show 12022+2108 A 2163 169 0.7 77
Show 12089+2147 HDS1714 Aa,Ab 204 0.1 83
Show 12089+2147 LDS 930 AB 39 15.5 83
Show 12049+2150 LDS4177 336 77.4 85
Show 12025+2128 TDS8185 247 1.0 86
Show 12019+1939 CVR 641 181 27.0 87
Show 12007+2051 BDK 5 234 203.7 90
Show 12039+2152 FYM 232 195 6.8 94
Show 12015+2127 CBL 368 295 21.9 97
Show 12024+1916 A 2165 38 0.3 98
Show 12025+2145 HO 535 147 2.9 98
Show 12034+2157 BRT2413 238 3.0 101
Show 12101+1859 LEP 51 AC 110 82.1 102
Show 12101+1859 LSC 143 AB 143 1.8 102
Show 12136+2112 UC 2296 335 8.9 103
Show 12102+1858 A 2057 298 1.9 103
Show 12137+2118 HU 570 103 3.0 107
Show 11594+2052 HO 534 138 10.3 108
Show 12130+2146 JNN 277 255 0.6 116
Show 12100+1846 LDS 931 140 43.1 118
Show 12149+1947 COU 178 319 1.2 120
Show 12138+2143 HU 569 162 1.2 121
Show 12021+2211 SKF2697 97 1.8 122
Show 12046+2232 COU 92 108 1.1 127
Show 11574+2019 DVG 34 122 6.1 135
Show 11571+2026 DVG 33 47 32.3 138
Show 12064+1812 HDS1708 AB 305 0.4 138
Show 12064+1812 GII 185 Aa,Ab 137 0.1 138
Show 12165+1953 CVR1421 156 3.8 140
Show 11570+2023 DVG 32 258 53.9 141
Show 12113+2238 BRT2414 24 3.7 142
Show 12121+2232 SKF2012 192 63.3 143
Show 12039+1811 GWP1740 195 21.5 146
Show 12071+2255 GUR 29 30 1.1 146
Show 11561+2015 BRT2289 87 1.6 153
Show 12006+1820 HDS1688 AB 6 0.5 158
Show 12006+1820 GII 182 Aa,Ab 99 0.1 158
Show 12111+2257 COU 94 339 1.3 158
Show 12058+2310 COU 93 156 0.9 161
Show 12060+2312 WSI 103 126 0.2 164
Show 12041+2312 POU3120 195 14.0 167

 
 
WDS 12069+2030 : COMPONENTS
 
 
  A
B pa=135.9°
sep=2.61"
 
 
12069+2030 A
 
 
Componente originario normalizzato AB Name HD 105217 Coord arcsec 2000 120655.67+202934.6 Mag 8.99
Spectral class G5 (yellow) PmRA -32.00 PmDE 6.0 SAO 82140
HIP 59078 Tycho2 1444-00516-1 HD 105217 BD BD+21 2392
Tycho2
Tycho2 1444-00516-1 Pflag RAmdeg 181.73195679 DEmdeg 20.49294448
PmRA -31.8 PmDE 5.5 E RAmdeg 7 E DEmdeg 9
E pmRA 0.7 E pmDE 0.7 EpRAm 1990.41 EpDEm 1989.01
Num 18 Q RAmdeg 0.9 Q DEmdeg 1.8 Q pmRA 1.0
Q pmDE 1.9 BTmag 9.449 E BTmag 0.019 VTmag 8.993
E VTmag 0.015 Prox 27 TYC T HIP 59078
CCDM A RAdeg 181.73203333 DEdeg 20.49293306 EpRA 1990 1.85
EpDE 1990 1.78 E RAdeg 7.4 E DEdeg 9.8 Posflg
Corr 0.1
SAO
SAO 82140 DelFlag RA1950 PmRA1950 -0.0027
DE1950 PmDE1950 0.005 Vmag 8.4 SpType G5
Double code Source 35 CatNum 4441 DM BD+21 2392
DMcomp BDsup HD 105217 M HD 0
GC RA1950rad 3.16069165 DE1950rad 0.36252606 PmRA2000 -0.0027
PmDE2000 0.01
Hipparcos
Catalog H HIP 59078 Proxy H RAhms 12 06 55.69
DEdms +20 29 34.6 Vmag 8.92 VarFlag R Vmag G
RAdeg 181.732 DEdeg 20.4929 AstroRef A Plx 3.18
CCDM 12069+2030 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual D M HIP AB
Theta 132 Rho 2.712 HD 105217 BD BD+21 2392
CD CP Dm number +21 2392 VIred 0.48
SpType G5 R SpType Coord arcsec 2000 120655.69+202934.6
Hipparcos 2
HIP 59078 Sn 15 So 3 Nc 2
RArad 3.1718223752 DErad 0.3576691727 Plx 5.05 PmRA -30.7
PmDE 4.01 E RArad 0.89 E DErad 0.56 E Plx 1.16
E pmRA 1.18 E pmDE 0.56 Hpmag 8.9973 E Hpmag 0.002
SHp 0.016 VA 0 BV 0.41 E BV 0.015
VI 0.48
CCDM
Ccdm 12069+2030 RComp Comp A Note1
Note2 Discov num DRAs 1.65 DDEs -25.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.5 Sp G5 PmNote *
PmRA -34 PmDE -3 Dm number +21 2392 Cat1 BD
Name2 +20 1315 Cat2 AGK2/3 HD 105217 M HD
ADS BDS A 8425 M ADS BDS N IDS IDS 12018N2103A
HIC 59078
 
 
12069+2030 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 120655.80+202932.7 Mag 12.26 PmRA -30.00
PmDE 5.0 Calc delta mag 3.27 Calc coord yes
CCDM
Ccdm 12069+2030 RComp Comp B Note1
Note2 Discov num HO 255 DRAs DDEs
R dRAs Year 1887 Theta 130 Rho 2.5
Obs 9 Vmag 12.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8425 M ADS BDS N IDS IDS 12018N2103B
HIC 59078