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Doubles in session


Current system
18549+4136
HO 270 AB


Nearby doubles
11' : 18539+4135
DEA 287

13' : 18558+4128
KOI3004

16' : 18536+4131
KOI2542

19' : 18541+4120
KOI5222

21' : 18535+4149
KOI 510

23' : 18533+4150
KOI 852AB

25' : 18556+4113
KOI2031AB

27' : 18529+4121
KOI 284

27' : 18549+4109
DEA 438

29' : 18574+4131
KOI 227AB

29' : 18574+4135
KOI2858

30' : 18534+4112
KOI4016AB

31' : 18576+4135
DEA 260

32' : 18550+4105
KOI3810

33' : 18520+4141
KOI3049AB

36' : 18517+4136
KOI5253

37' : 18516+4130
DEA 243

38' : 18519+4119
KOI 657

39' : 18576+4114
KOI 654

39' : 18580+4120
KOI3414

39' : 18516+4150
KOI6702

39' : 18583+4136
DEA 195

41' : 18584+4133
DEA 374

41' : 18514+4123
DEA 235

41' : 18528+4102
KOI3288AB

42' : 18584+4148
RAO 404



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.

18549+4136 HO 270 AB

 
 
18h 54m 52.18s +41° 36' 09.8" P.A. 300.00 sep 8.4 mag 5.44,12.60 Sp K0III dist. 81.97 pc (267.39 l.y.)
 
 
Coord 2000 18549+4136 Discov num HO  270 Comp AB Coord arcsec 2000 18 54 52.18 +41 36 09.8
Date first 1887 Date last 2013 Obs 5
Pa first 307 Pa last 300.1 P.A. Now (θ) 300.1°
Sep first 8.2 Sep last 8.412 Sep. Now (ρ) 8.412"
Mag pri 5.44 Mag sec 12.60 delta mag (ΔM) 7.16 Spectral class K0III (yellow-orange)
Pri motion ra +008 Sec motion ra
Pri motion dec -007 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18549+4136 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 47909 18 54 52 +41 36 10 HO 270 AB 2013 5 300 8.4 5.44 12.60 7.16 <===
Show HD 175740 47909 18 54 52 +41 36 10 HO 270 AC 2016 11 39 23.9 5.44 11.50 6.06
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra SAO 47909 HIP 92831 Tycho2 3127-02260-1
Gaia DR2 2104485016711846656 HD 175740 HR 7146 GC 25972
ADS 11840 BD BD+41 3177 Distance 81.97 Distance ly 267.39
 
 
WDS 18549+4136 HO 270 AB : 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
18549+4136 HO 270 AB 1934 4 303 8.7 5.44 12.60 K0III D 185452.18+413609.8
18549+4136 HO 270 AB 2013 5 300 8.4 5.44 12.60 K0III 185452.18+413609.8

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

 
 
WDS 18549+4136 HO 270 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18549+4136 HO 270 AB : MEASURES
 
 
No records found.

 
 
WDS 18549+4136 : VIRTUAL EYEPIECE
 
 

18549+4136 HO 270A mag 5.44 Sp K0III 18549+4136 HO 270B sep 6.9 P.A. 307.80 mag 12.6 18549+4136 HO 270C sep 21.7 P.A. 31.20 mag 11.5 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 18549+4136 : ALADIN DSS IMAGE @ 18h 54m 52.18s +41° 36' 09.8"
 
 
 
 
WDS 18549+4136 HO 270 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18549+4136 HO 270AB distance=0' 18539+4135 DEA 287 distance=11' 18558+4128 KOI3004 distance=13' 18536+4131 KOI2542 distance=16' 18541+4120 KOI5222 distance=19' 18535+4149 KOI 510 distance=21' 18533+4150 KOI 852AB distance=23' 18533+4150 KOI 852AC distance=23' 18556+4113 KOI2031AB distance=25' 18556+4113 KOI2031AC distance=25' 18556+4113 KOI2031AD distance=25' 18556+4113 KOI2031AE distance=25' 18556+4113 KOI2031AF distance=25' 18529+4121 KOI 284 distance=27' 18549+4109 DEA 438 distance=27' 18574+4131 KOI 227AB distance=29' 18574+4131 KOI 227AC distance=29' 18574+4131 KOI 227AD distance=29' 18574+4135 KOI2858 distance=29' 18534+4112 KOI4016AB distance=30' 18534+4112 KOI4016AC distance=30' 18534+4112 KOI4016AD distance=30' 18576+4135 DEA 260 distance=31' 18550+4105 KOI3810 distance=32' 18520+4141 KOI3049AB distance=33' 18520+4141 KOI3049AC distance=33' 18520+4141 KOI3049AD distance=33' 18520+4141 KOI3049AE distance=33' 18520+4141 KOI3049AF distance=33' 18517+4136 KOI5253 distance=36' 18516+4130 DEA 243 distance=37' 18519+4119 KOI 657 distance=38' 18576+4114 KOI 654 distance=39' 18580+4120 KOI3414 distance=39' 18516+4150 KOI6702 distance=39' 18583+4136 DEA 195 distance=39' 18584+4133 DEA 374 distance=41' 18514+4123 DEA 235 distance=41' 18528+4102 KOI3288AB distance=41' 18528+4102 KOI3288AC distance=41' 18584+4148 RAO 404 distance=42' 18554+4052 ES 1657 distance=45' 18551+4051 HEI 73 distance=46' 18588+4151 TDT1160 distance=47' 18507+4135 KOI6023AB distance=47' 18507+4135 KOI6023AC distance=47' 18579+4214 COU1795 distance=52' 18569+4048 KOI1962 distance=54' 18586+4101 KOI 190 distance=55' 18502+4120 KOI3942 distance=55' 18530+4044 DEA 294 distance=56' 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 18549+4136 HO 270 AB 300 8.4
Show 18549+4136 HO 270 AC 39 23.9
Show 18539+4135 DEA 287 203 12.0 11
Show 18558+4128 KOI3004 193 3.8 13
Show 18536+4131 KOI2542 29 0.8 16
Show 18541+4120 KOI5222 218 3.1 19
Show 18535+4149 KOI 510 348 2.4 21
Show 18533+4150 KOI 852 AB 176 4.5 23
Show 18533+4150 KOI 852 AC 220 6.0 23
Show 18556+4113 KOI2031 AB 246 0.1 25
Show 18556+4113 KOI2031 AC 46 3.6 25
Show 18556+4113 KOI2031 AD 330 4.3 25
Show 18556+4113 KOI2031 AE 264 4.8 25
Show 18556+4113 KOI2031 AF 219 6.5 25
Show 18529+4121 KOI 284 98 0.9 27
Show 18549+4109 DEA 438 26 25.7 27
Show 18574+4131 KOI 227 AB 71 0.3 29
Show 18574+4131 KOI 227 AC 149 3.4 29
Show 18574+4131 KOI 227 AD 190 6.5 29
Show 18574+4135 KOI2858 322 3.6 29
Show 18534+4112 KOI4016 AB 210 1.8 30
Show 18534+4112 KOI4016 AC 186 3.3 30
Show 18534+4112 KOI4016 AD 35 5.5 30
Show 18576+4135 DEA 260 250 11.0 31
Show 18550+4105 KOI3810 54 3.1 32
Show 18520+4141 KOI3049 AB 190 0.5 33
Show 18520+4141 KOI3049 AC 195 0.8 33
Show 18520+4141 KOI3049 AD 255 1.2 33
Show 18520+4141 KOI3049 AE 35 1.2 33
Show 18520+4141 KOI3049 AF 337 2.9 33
Show 18517+4136 KOI5253 178 2.4 36
Show 18516+4130 DEA 243 332 10.5 37
Show 18519+4119 KOI 657 81 1.2 38
Show 18576+4114 KOI 654 112 3.5 39
Show 18580+4120 KOI3414 243 4.9 39
Show 18516+4150 KOI6702 167 1.8 39
Show 18583+4136 DEA 195 7 9.2 39
Show 18584+4133 DEA 374 60 17.6 41
Show 18514+4123 DEA 235 111 10.2 41
Show 18528+4102 KOI3288 AB 75 3.1 41
Show 18528+4102 KOI3288 AC 81 3.4 41
Show 18584+4148 RAO 404 55 1.2 42
Show 18554+4052 ES 1657 355 3.7 45
Show 18551+4051 HEI 73 321 0.7 46
Show 18588+4151 TDT1160 15 0.9 47
Show 18507+4135 KOI6023 AB 72 2.9 47
Show 18507+4135 KOI6023 AC 111 3.4 47
Show 18579+4214 COU1795 128 0.4 52
Show 18569+4048 KOI1962 114 0.1 54
Show 18586+4101 KOI 190 109 0.2 55
Show 18502+4120 KOI3942 57 3.9 55

 
 
WDS 18549+4136 : COMPONENTS
 
 
  A B
B pa=307.8°
sep=6.89"
 
C pa=31.2°
sep=21.68"
pa=49.3°
sep=21.98"
 
 
18549+4136 A
 
 
Coord arcsec 2000 185452.18+413609.8 Mag 5.44 Spectral class K0III (yellow-orange) PmRA 8.00
PmDE -7.0 SAO 47909 HIP 92831 Tycho2 3127-02260-1
HD 175740 HR 7146 GC 25972 BD BD+41 3177
Tycho2
Tycho2 3127-02260-1 Pflag RAmdeg 283.71740562 DEmdeg 41.60272615
PmRA -1.1 PmDE -1.6 E RAmdeg 4 E DEmdeg 4
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.48 EpDEm 1991.54
Num 8 Q RAmdeg 0.5 Q DEmdeg 1.2 Q pmRA 0.4
Q pmDE 1.2 BTmag 6.776 E BTmag 0.015 VTmag 5.571
E VTmag 0.009 Prox 999 TYC T HIP 92831
CCDM RAdeg 283.71740917 DEdeg 41.60273000 EpRA 1990 1.66
EpDE 1990 1.71 E RAdeg 3.5 E DEdeg 3.5 Posflg
Corr 0.0
SAO
SAO 47909 DelFlag RA1950 PmRA1950 -0.0002
DE1950 PmDE1950 -0.001 Vmag 5.6 SpType K0
Double code Source 70 CatNum 25972 DM BD+41 3177
DMcomp BDsup HD 175740 M HD 0
GC 25972 RA1950rad 4.94480973 DE1950rad 0.72496904 PmRA2000 0.0002
PmDE2000 -0.002
Hipparcos
Catalog H HIP 92831 Proxy RAhms 18 54 52.18
DEdms +41 36 09.8 Vmag 5.46 VarFlag R Vmag H
RAdeg 283.717 DEdeg 41.6027 AstroRef Plx 12.19
CCDM 18549+4136 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 175740 BD BD+41 3177
CD CP Dm number +41 3177 VIred 1
SpType G8III R SpType Coord arcsec 2000 185452.18+413609.8
Hipparcos 2
HIP 92831 Sn 5 So 0 Nc 1
RArad 4.9518029341 DErad 0.7261045875 Plx 12.2 PmRA -1.15
PmDE -2.72 E RArad 0.22 E DErad 0.23 E Plx 0.26
E pmRA 0.25 E pmDE 0.29 Hpmag 5.627 E Hpmag 0.0005
SHp 0.005 VA 0 BV 1.034 E BV 0.004
VI 1.01
CCDM
Ccdm 18549+4136 RComp Comp A Note1
Note2 Discov num DRAs -1.81 DDEs 8.8
R dRAs 10 Year Theta Rho
Obs 3 Vmag 5.6 Sp K0 PmNote *
PmRA 3 PmDE -16 Dm number +41 3177 Cat1 BD
Name2 +41 1639 Cat2 AGK2/3 HD 175740 M HD
ADS BDS A11840 M ADS BDS N IDS IDS 18517N4128A
HIC 92831
 
 
18549+4136 B
 
 
Coord arcsec 2000 185451.69+413614.0 Mag 12.6 Calc delta mag 7.16 Calc coord yes
CCDM
Ccdm 18549+4136 RComp Comp B Note1
Note2 Discov num HO 270 DRAs DDEs
R dRAs Year 1887 Theta 307 Rho 8.2
Obs 5 Vmag 12.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11840 M ADS BDS N IDS IDS 18517N4128B
HIC 92831
 
 
18549+4136 C
 
 
Coord arcsec 2000 185453.18+413628.3 Mag 11.5 Calc delta mag 6.06 Calc coord yes
CCDM
Ccdm 18549+4136 RComp Comp C Note1
Note2 Discov num HO 270 DRAs DDEs
R dRAs Year 1887 Theta 040 Rho 23.6
Obs 7 Vmag 11.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11840 M ADS BDS N IDS IDS 18517N4128C
HIC