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Doubles in session


Current system
18386+1632
HO 87 AC


Nearby doubles
12' : 18384+1643
SLE 225AB

34' : 18380+1705
SLE 223

35' : 18393+1706
SLE 228

39' : 18379+1555
SLE 221

40' : 18379+1554
SLE 222

43' : 18389+1715
BPM 799

48' : 18359+1659
STT 358AB

55' : 18394+1540
MIL 5

56' : 18400+1724
SLE 231AB

58' : 18381+1729
SLE 224

60' : 18423+1701
GWP2794

62' : 18345+1615
GWP2787

72' : 18342+1705
SLE 203AB

72' : 18337+1646
SLE 198

75' : 18340+1600
SLE 623

77' : 18341+1712
SLE 202AB

77' : 18336+1700
SLE 197AB

79' : 18355+1528
TOK 618

81' : 18378+1752
BPM 794

83' : 18439+1601
OSO 103AB

83' : 18407+1749
ROE 88AB

83' : 18412+1747
BPM 801

87' : 18333+1713
SLE 193

88' : 18386+1505
HJ 1331

88' : 18346+1739
BPM 791

88' : 18387+1800
GRV 235



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18386+1632 HO 87 AC

 
 
18h 38m 36.74s +16° 32' 27.7" P.A. 121.00 sep 47.3 mag 8.34,14.17 Sp G5 dist. 128.7 pc (419.82 l.y.)
 
 
Coord 2000 18386+1632 Discov num HO   87 Comp AC Coord arcsec 2000 18 38 36.74 +16 32 27.7
Date first 1893 Date last 2015 Obs 9
Pa first 131 Pa last 120.9 P.A. Now (θ) 120.9°
Sep first 45.6 Sep last 47.309 Sep. Now (ρ) 47.309"
Mag pri 8.34 Mag sec 14.17 delta mag (ΔM) 5.83 Spectral class G5 (yellow)
Pri motion ra -050 Sec motion ra +026
Pri motion dec -049 Sec motion dec -017
Notes N (See Notes)
rPM=1.178
This double is not physical.
 
 
18386+1632 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 172246 103945 18 38 37 +16 32 28 HO 87 AB 2019 115 96 0.4 8.34 8.98 0.64 Y
Show 103945 18 38 37 +16 32 28 HO 87 AC 2015 9 121 47.3 8.34 14.17 5.83 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules SAO 103945 HIP 91413 Tycho2 1570-02103-1
Gaia DR2 4511604454282166912 HD 172246 BD BD+16 3572 Distance 128.7
Distance ly 419.82
 
 
WDS 18386+1632 HO 87 AC : NOTES
 
 
discov_num notes refcode
HO 87 AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 4.52 +/- 2.14, 2.99, and 0.95 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
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
18386+1632 HO 87 AC 2000 2 122 47.0 8.34 13.00 G5 N D 183836.74+163227.7
18386+1632 HO 87 AC 2001 4 122 46.9 8.34 13.00 G5 N D 183836.74+163227.7
18386+1632 HO 87 AC 2013 5 121 48.0 8.34 14.17 G5 N 183836.74+163227.7
18386+1632 HO 87 AC 2015 9 121 47.3 8.34 14.17 G5 N 183836.74+163227.7

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

 
 
WDS 18386+1632 HO 87 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18386+1632 HO 87 AC : MEASURES
 
 
No records found.

 
 
WDS 18386+1632 : VIRTUAL EYEPIECE
 
 

18386+1632 HO 87A mag 8.34 Sp G5 18386+1632 HO 87B sep 0.4 P.A. 95.80 mag 8.98 18386+1632 HO 87C sep 45.9 P.A. 122.00 mag 14.17 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 18386+1632 : ALADIN DSS IMAGE @ 18h 38m 36.74s +16° 32' 27.7"
 
 
 
 
WDS 18386+1632 HO 87 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18386+1632 HO 87AC distance=0' 18384+1643 SLE 225AB distance=12' 18384+1643 SLE 225AC distance=12' 18380+1705 SLE 223 distance=34' 18393+1706 SLE 228 distance=35' 18379+1555 SLE 221 distance=39' 18379+1554 SLE 222 distance=40' 18389+1715 BPM 799 distance=43' 18359+1659 STT 358AB distance=48' 18359+1659 RED 25AB,E distance=48' 18359+1659 SLE 214AB,D distance=48' 18359+1659 STT 358AB,C distance=48' 18359+1659 SLE 214CD distance=49' 18394+1540 MIL 5 distance=55' 18400+1724 SLE 231AB distance=56' 18400+1724 TOB 294BC distance=56' 18381+1729 SLE 224 distance=58' 18423+1701 GWP2794 distance=60' 18345+1615 GWP2787 distance=62' 18342+1705 SLE 203AB distance=72' 18342+1705 SLE 203AC distance=72' 18337+1646 SLE 198 distance=72' 18342+1705 SLE 203BC distance=72' 18340+1600 SLE 623 distance=75' 18341+1712 SLE 202BC distance=76' 18341+1712 SLE 202AB distance=77' 18341+1712 SLE 202AC distance=77' 18336+1700 SLE 197AB distance=77' 18336+1700 SLE 197AD distance=77' 18336+1700 SLE 197AC distance=77' 18336+1700 SLE 197BC distance=77' 18355+1528 TOK 618 distance=79' 18378+1752 BPM 794 distance=81' 18439+1601 OSO 103AB distance=83' 18439+1601 OSO 103AC distance=83' 18439+1601 OSO 103AD distance=83' 18439+1601 OSO 103AE distance=83' 18439+1601 OSO 103AF distance=83' 18407+1749 ROE 88AB distance=83' 18407+1749 ROE 88AC distance=83' 18407+1749 WLY 11AD distance=83' 18412+1747 BPM 801 distance=83' 18333+1713 SLE 193 distance=87' 18386+1505 HJ 1331 distance=88' 18346+1739 BPM 791 distance=88' 18387+1800 GRV 235 distance=88' 18369+1506 BPM 793 distance=90' 18323+1625 HDS2630 distance=92' 18341+1742 J 2915AB distance=93' 18341+1742 J 2915AC distance=93' 18449+1606 HEI 173 distance=94' 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 18386+1632 HO 87 AB 96 0.4
Show 18386+1632 HO 87 AC 121 47.3
Show 18384+1643 SLE 225 AB 280 10.5 12
Show 18384+1643 SLE 225 AC 305 60.4 12
Show 18380+1705 SLE 223 126 15.4 34
Show 18393+1706 SLE 228 344 7.6 35
Show 18379+1555 SLE 221 35 19.3 39
Show 18379+1554 SLE 222 117 15.2 40
Show 18389+1715 BPM 799 29 56.5 43
Show 18359+1659 STT 358 AB 146 1.7 48
Show 18359+1659 RED 25 AB,E 349 34.6 48
Show 18359+1659 SLE 214 AB,D 224 134.6 48
Show 18359+1659 STT 358 AB,C 235 198.7 48
Show 18359+1659 SLE 214 CD 77 72.0 49
Show 18394+1540 MIL 5 58 3.2 55
Show 18400+1724 SLE 231 AB 110 17.8 56
Show 18400+1724 TOB 294 BC 149 20.0 56
Show 18381+1729 SLE 224 20 17.3 58
Show 18423+1701 GWP2794 68 14.0 60
Show 18345+1615 GWP2787 319 127.7 62
Show 18342+1705 SLE 203 AB 267 56.0 72
Show 18342+1705 SLE 203 AC 279 63.2 72
Show 18337+1646 SLE 198 320 12.8 72
Show 18342+1705 SLE 203 BC 333 14.3 72
Show 18340+1600 SLE 623 67 8.1 75
Show 18341+1712 SLE 202 BC 71 17.0 76
Show 18341+1712 SLE 202 AB 70 51.7 77
Show 18341+1712 SLE 202 AC 70 68.7 77
Show 18336+1700 SLE 197 AB 211 28.3 77
Show 18336+1700 SLE 197 AD 306 37.2 77
Show 18336+1700 SLE 197 AC 177 34.0 77
Show 18336+1700 SLE 197 BC 120 19.2 77
Show 18355+1528 TOK 618 290 999.9 79
Show 18378+1752 BPM 794 108 96.4 81
Show 18439+1601 OSO 103 AB 121 5.0 83
Show 18439+1601 OSO 103 AC 44 8.9 83
Show 18439+1601 OSO 103 AD 25 14.1 83
Show 18439+1601 OSO 103 AE 150 16.4 83
Show 18439+1601 OSO 103 AF 233 17.4 83
Show 18407+1749 ROE 88 AB 131 8.4 83
Show 18407+1749 ROE 88 AC 330 35.5 83
Show 18407+1749 WLY 11 AD 322 14.2 83
Show 18412+1747 BPM 801 292 64.5 83
Show 18333+1713 SLE 193 291 9.6 87
Show 18386+1505 HJ 1331 209 40.5 88
Show 18346+1739 BPM 791 203 58.8 88
Show 18387+1800 GRV 235 331 7.8 88
Show 18369+1506 BPM 793 283 113.7 90
Show 18323+1625 HDS2630 165 0.2 92
Show 18341+1742 J 2915 AB 190 6.1 93
Show 18341+1742 J 2915 AC 84 7.1 93

 
 
WDS 18386+1632 : COMPONENTS
 
 
  A B
B pa=95.8°
sep=0.43"
 
C pa=122.0°
sep=45.88"
pa=122.2°
sep=45.49"
 
 
18386+1632 A
 
 
Name HD 172246 Coord arcsec 2000 183836.74+163227.7 Mag 8.34 Spectral class G5 (yellow)
PmRA -51.00 PmDE -63.0 SAO 103945 HIP 91413
Tycho2 1570-02103-1 HD 172246 ADS 11530 BD BD+16 3572
Tycho2
Tycho2 1570-02103-1 Pflag RAmdeg 279.65296517 DEmdeg 16.54092233
PmRA -50.2 PmDE -49.7 E RAmdeg 5 E DEmdeg 6
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.53 EpDEm 1991.35
Num 9 Q RAmdeg 1.0 Q DEmdeg 1.2 Q pmRA 1.0
Q pmDE 1.1 BTmag 8.483 E BTmag 0.016 VTmag 7.805
E VTmag 0.011 Prox 999 TYC T HIP 91413
CCDM AB RAdeg 279.65308306 DEdeg 16.54103417 EpRA 1990 1.89
EpDE 1990 1.88 E RAdeg 5.1 E DEdeg 5.7 Posflg P
Corr 0.1
SAO
SAO 103945 DelFlag RA1950 PmRA1950 -0.0025
DE1950 PmDE1950 -0.054 Vmag 7.7 SpType G5
Double code Source 28 CatNum 6926 DM BD+16 3572
DMcomp BDsup HD 172246 M HD 0
GC RA1950rad 4.87111652 DE1950rad 0.28791162 PmRA2000 -0.0024
PmDE2000 -0.054
Hipparcos
Catalog H HIP 91413 Proxy H RAhms 18 38 36.74
DEdms +16 32 27.7 Vmag 7.73 VarFlag R Vmag H
RAdeg 279.653 DEdeg 16.541 AstroRef A Plx 8.02
CCDM 18386+1632 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 56 Rho 0.301 HD 172246 BD BD+16 3572
CD CP Dm number +16 3572 VIred 0.68
SpType G5 R SpType Coord arcsec 2000 183836.74+163227.7
Hipparcos 2
HIP 91413 Sn 15 So 3 Nc 2
RArad 4.8808668033 DErad 0.2886954144 Plx 7.77 PmRA -52.24
PmDE -48.49 E RArad 0.82 E DErad 0.72 E Plx 1.01
E pmRA 0.98 E pmDE 0.95 Hpmag 7.8586 E Hpmag 0.0016
SHp 0.013 VA 0 BV 0.612 E BV 0.018
VI 0.68
CCDM
Ccdm 18386+1632 RComp Comp A Note1
Note2 Discov num DRAs 0.68 DDEs 26.1
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.4 Sp G5 PmNote *
PmRA -62 PmDE -73 Dm number +16 3572 Cat1 BD
Name2 +16 1857 Cat2 AGK2/3 HD 172246 M HD
ADS BDS A11530 M ADS BDS N IDS IDS 18342N1627A
HIC 91413
 
 
18386+1632 B
 
 
Coord arcsec 2000 183836.77+163227.7 Mag 8.98 Calc delta mag 0.64 Calc coord yes
CCDM
Ccdm 18386+1632 RComp Comp B Note1 *
Note2 Discov num HO 87 DRAs DDEs
R dRAs Year 1960 Theta 186 Rho 0.3
Obs 99 Vmag 8.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11530 M ADS BDS N IDS IDS 18342N1627B
HIC 91413
 
 
18386+1632 C
 
 
Coord arcsec 2000 183839.45+163203.4 Mag 14.17 PmRA 26.00 PmDE -17.0
Calc delta mag 5.83 Calc coord yes
CCDM
Ccdm 18386+1632 RComp Comp C Note1
Note2 Discov num HO 87 DRAs DDEs
R dRAs Year 1893 Theta 131 Rho 45.6
Obs 1 Vmag 12.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11530 M ADS BDS N IDS IDS 18342N1627C
HIC