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Current system
18039+2639
HO 426
HD 165241


Nearby doubles
16' : 18048+2630
TDT 666

25' : 18031+2702
TDT 653

28' : 18025+2619
HO 564AB

29' : 18018+2631
SLE 107

30' : 18047+2707
ES 471AB

31' : 18021+2620
SLE 90

34' : 18063+2643
TDT 683

38' : 18032+2603
HO 565AB

41' : 18009+2633
STF2263

41' : 18009+2646
TDT 635

41' : 18039+2558
SLE 88

45' : 18010+2617
BU 1461

58' : 18072+2716
SLE 110

63' : 18078+2606
STF2280AB

70' : 18070+2544
KPP4084

71' : 17589+2620
COU 808

72' : 18047+2750
SLE 109

73' : 18033+2751
ES 470

77' : 18000+2544
BRT 32

78' : 18032+2522
BU 825AB

82' : 18089+2725
SLE 111

83' : 17588+2554
SLE 87AB

84' : 18000+2535
HJ 1310AB

85' : 17599+2534
SLE 89

85' : 18059+2759
KPP3327

85' : 18035+2515
HLM 10



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

18039+2639 HO 426 (HD 165241)

 
 
18h 03m 54.11s +26° 39' 05.0" P.A. 230.00 sep 11.7 mag 6.98,12.00 Sp F3V dist. 58.55 pc (190.99 l.y.)
 
 
Coord 2000 18039+2639 Discov num HO  426 Comp Coord arcsec 2000 18 03 54.11 +26 39 05.0
Date first 1890 Date last 2017 Obs 13
Pa first 193 Pa last 229.5 P.A. Now (θ) 229.5°
Sep first 12.4 Sep last 11.66 Sep. Now (ρ) 11.66"
Mag pri 6.98 Mag sec 12.00 delta mag (ΔM) 5.02 Spectral class F3V (yellow-white)
Pri motion ra +033 Sec motion ra
Pri motion dec -058 Sec motion dec
Notes N L U (See Notes, Linear solution, Proper motion indicates non-physical)
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 165241 Constellation Hercules SAO 85696 HIP 88474
Tycho2 2099-03202-1 Gaia DR2 4583067590481959168 HD 165241 GC 24609
ADS 11031 BD BD+26 3160 Distance 58.55 Distance ly 190.99
 
 
WDS 18039+2639 HO 426 (HD 165241) : NOTES
 
 
discov_num notes refcode
HO 426 Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
Rectilinear solution by Hurowitz et al. (2014). USN2014b
 
 
REFERENCES
 
 
refcode metd author reference
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
USN2014b lin - Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D. 2014IAUDS.183....1H
USN2014b Inf. Circ. 183, 1, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 HO Hough, G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18039+2639 HO 426 2000 10 225 11.5 7.00 12.00 F3V N D 180354.11+263905.0
18039+2639 HO 426 2013 11 229 11.9 7.00 12.00 F3V NL 180354.11+263905.0
18039+2639 HO 426 2015 12 229 11.7 6.98 12.00 F3V NL U 180354.11+263905.0
18039+2639 HO 426 2017 13 230 11.7 6.98 12.00 F3V NL U 180354.11+263905.0

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

 
 
WDS 18039+2639 HO 426 (HD 165241) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18039+2639 HO 426 (HD 165241) : MEASURES
 
 
No records found.

 
 
WDS 18039+2639 (HD 165241) : VIRTUAL EYEPIECE
 
 

18039+2639 HO 426A mag 6.98 Sp F3V 18039+2639 HO 426B sep 11.0 P.A. 226.30 mag 12 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 18039+2639 (HD 165241) : ALADIN DSS IMAGE @ 18h 03m 54.11s +26° 39' 05.0"
 
 
 
 
WDS 18039+2639 HO 426 (HD 165241) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18039+2639 HO 426 distance=0' 18048+2630 TDT 666 distance=16' 18031+2702 TDT 653 distance=25' 18025+2619 HO 564AB distance=28' 18025+2619 HO 564AC distance=28' 18025+2619 HO 564AD distance=28' 18025+2619 HO 564AE distance=28' 18025+2619 HO 564AF distance=28' 18018+2631 SLE 107 distance=29' 18047+2707 ES 471AB distance=30' 18047+2707 ES 471AC distance=30' 18047+2707 SLE 106AD distance=30' 18047+2707 SLE 106AE distance=30' 18047+2707 SLE 106AF distance=30' 18021+2620 SLE 90 distance=31' 18063+2643 TDT 683 distance=34' 18032+2603 HO 565AB distance=38' 18032+2603 HO 565AC distance=38' 18009+2633 STF2263 distance=41' 18009+2646 TDT 635 distance=41' 18039+2558 SLE 88 distance=41' 18010+2617 BU 1461 distance=45' 18072+2716 SLE 110 distance=58' 18078+2606 CHR 67Aa,Ab distance=63' 18078+2606 STF2280AB distance=63' 18078+2606 STF2280AC distance=63' 18070+2544 KPP4084 distance=70' 17589+2620 COU 808 distance=71' 18047+2750 SLE 109 distance=72' 18033+2751 ES 470 distance=73' 18000+2544 BRT 32 distance=77' 18032+2522 BU 825AB distance=78' 18032+2522 STF2268AC distance=78' 18032+2522 BU 825BC distance=78' 18089+2725 SLE 111 distance=82' 17588+2554 SLE 87AB distance=83' 17588+2554 SLE 87AC distance=83' 18000+2535 HJ 1310BC distance=84' 18000+2535 HJ 1310AB distance=84' 18000+2535 HJ 1310AC distance=84' 17599+2534 SLE 89 distance=85' 18059+2759 KPP3327 distance=85' 18035+2515 HLM 10 distance=85' 17599+2533 HJ 1309 distance=87' 18083+2745 LDS4776 distance=88' 17582+2724 HO 425 distance=89' 17573+2627 BRT 179 distance=89' 17580+2547 UC 3459 distance=95' 18032+2813 AZC 103 distance=95' 18017+2508 TDT 642 distance=97' 17568+2613 KPP4070 distance=99' 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 18039+2639 HO 426 230 11.7
Show 18048+2630 TDT 666 36 0.8 16
Show 18031+2702 TDT 653 26 0.7 25
Show 18025+2619 HO 564 AB 326 98.5 28
Show 18025+2619 HO 564 AC 21 92.9 28
Show 18025+2619 HO 564 AD 56 110.6 28
Show 18025+2619 HO 564 AE 339 57.7 28
Show 18025+2619 HO 564 AF 63 112.4 28
Show 18018+2631 SLE 107 205 13.3 29
Show 18047+2707 ES 471 AB 274 24.3 30
Show 18047+2707 ES 471 AC 44 24.3 30
Show 18047+2707 SLE 106 AD 244 88.5 30
Show 18047+2707 SLE 106 AE 43 183.4 30
Show 18047+2707 SLE 106 AF 340 129.9 30
Show 18021+2620 SLE 90 266 13.3 31
Show 18063+2643 TDT 683 167 0.8 34
Show 18032+2603 HO 565 AB 111 0.1 38
Show 18032+2603 HO 565 AC 323 100.0 38
Show 18009+2633 STF2263 158 7.7 41
Show 18009+2646 TDT 635 229 0.6 41
Show 18039+2558 SLE 88 339 3.8 41
Show 18010+2617 BU 1461 185 23.0 45
Show 18072+2716 SLE 110 115 10.8 58
Show 18078+2606 CHR 67 Aa,Ab 300 0.1 63
Show 18078+2606 STF2280 AB 182 14.3 63
Show 18078+2606 STF2280 AC 127 79.9 63
Show 18070+2544 KPP4084 253 5.9 70
Show 17589+2620 COU 808 155 0.9 71
Show 18047+2750 SLE 109 79 9.7 72
Show 18033+2751 ES 470 208 8.3 73
Show 18000+2544 BRT 32 172 5.4 77
Show 18032+2522 BU 825 AB 185 16.8 78
Show 18032+2522 STF2268 AC 202 24.5 78
Show 18032+2522 BU 825 BC 231 9.6 78
Show 18089+2725 SLE 111 313 14.7 82
Show 17588+2554 SLE 87 AB 42 8.7 83
Show 17588+2554 SLE 87 AC 44 18.1 83
Show 18000+2535 HJ 1310 BC 357 4.0 84
Show 18000+2535 HJ 1310 AB 42 10.5 84
Show 18000+2535 HJ 1310 AC 31 13.4 84
Show 17599+2534 SLE 89 231 4.6 85
Show 18059+2759 KPP3327 166 2.9 85
Show 18035+2515 HLM 10 2 30.0 85
Show 17599+2533 HJ 1309 3 6.3 87
Show 18083+2745 LDS4776 300 208.0 88
Show 17582+2724 HO 425 144 5.5 89
Show 17573+2627 BRT 179 74 2.2 89
Show 17580+2547 UC 3459 300 26.6 95
Show 18032+2813 AZC 103 146 14.1 95
Show 18017+2508 TDT 642 63 0.5 97
Show 17568+2613 KPP4070 76 1.4 99

 
 
WDS 18039+2639 : COMPONENTS
 
 
  A
B pa=226.3°
sep=10.96"
 
 
18039+2639 A
 
 
Componente originario normalizzato AB Name HD 165241 Coord arcsec 2000 180354.11+263905.0 Mag 6.98
Spectral class F3V (yellow-white) PmRA 33.00 PmDE -58.0 SAO 85696
HIP 88474 Tycho2 2099-03202-1 HD 165241 GC 24609
ADS 11031 BD BD+26 3160
Tycho2
Tycho2 2099-03202-1 Pflag RAmdeg 270.97556219 DEmdeg 26.65124949
PmRA 31.8 PmDE -57.3 E RAmdeg 4 E DEmdeg 4
E pmRA 1.0 E pmDE 1.1 EpRAm 1991.21 EpDEm 1991.43
Num 15 Q RAmdeg 1.0 Q DEmdeg 1.2 Q pmRA 1.0
Q pmDE 1.3 BTmag 7.421 E BTmag 0.015 VTmag 6.979
E VTmag 0.010 Prox 999 TYC T HIP 88474
CCDM RAdeg 270.97547861 DEdeg 26.65138167 EpRA 1990 1.55
EpDE 1990 1.72 E RAdeg 3.9 E DEdeg 3.6 Posflg
Corr 0.0
SAO
SAO 85696 DelFlag RA1950 PmRA1950 0.0022
DE1950 PmDE1950 -0.064 Vmag 7 SpType F2
Double code Source 70 CatNum 24609 DM BD+26 3160
DMcomp BDsup HD 165241 M HD 0
GC 24609 RA1950rad 4.72066161 DE1950rad 0.46510209 PmRA2000 0.0024
PmDE2000 -0.064
Hipparcos
Catalog H HIP 88474 Proxy RAhms 18 03 54.11
DEdms +26 39 05.0 Vmag 6.93 VarFlag R Vmag H
RAdeg 270.975 DEdeg 26.6514 AstroRef Plx 16.73
CCDM 18039+2639 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 165241 BD BD+26 3160
CD CP Dm number +26 3160 VIred 0.49
SpType F4V R SpType Coord arcsec 2000 180354.11+263905.0
Hipparcos 2
HIP 88474 Sn 5 So 0 Nc 1
RArad 4.7294142392 DErad 0.4651545121 Plx 17.08 PmRA 31.36
PmDE -56.72 E RArad 0.26 E DErad 0.3 E Plx 0.43
E pmRA 0.33 E pmDE 0.37 Hpmag 7.0232 E Hpmag 0.001
SHp 0.01 VA 0 BV 0.432 E BV 0.005
VI 0.5
CCDM
Ccdm 18039+2639 RComp Comp A Note1
Note2 Discov num DRAs 0.11 DDEs 4.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.0 Sp F2 PmNote *
PmRA 29 PmDE -54 Dm number +26 3160 Cat1 BD
Name2 +26 1790 Cat2 AGK2/3 HD 165241 M HD
ADS BDS A11031 M ADS BDS N IDS IDS 17599N2639A
HIC 88474
 
 
18039+2639 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 180353.52+263857.4 Mag 12 Calc delta mag 5.02
Calc coord yes
CCDM
Ccdm 18039+2639 RComp Comp B Note1
Note2 Discov num HO 426 DRAs -0.50 DDEs -3.9
R dRAs 90 Year 1922 Theta 204 Rho 12.0
Obs 5 Vmag 12.0 Sp PmNote *
PmRA -23 PmDE -21 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11031 M ADS BDS N IDS IDS 17599N2639B
HIC