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Doubles in session


Current system
18061-0819
HDS 2551
HD 165402


Nearby doubles
13' : 18060-0807
A 2595

26' : 18053-0823
J 1645

46' : 18092-0817
RST3998AB

46' : 18031-0811
STF2262AB

58' : 18096-0755
NSN 142

61' : 18099-0755
HDS2561

79' : 18081-0707
RST3997

82' : 18025-0719
RST3992

97' : 18086-0948
HDS2557

97' : 17596-0820
GWP2751

99' : 18108-0710
RST3999

103' : 18007-0717
LDS 621

109' : 18131-0747
RST4001

110' : 18004-0929
RST3990

127' : 17589-0924
OSO 90AB

134' : 18015-1014
BU 47

135' : 17593-0651
STF2250AB

137' : 18009-1012
HU 236

140' : 18099-1027
TSN 186

140' : 18154-0850
BRT 476

143' : 18010-1020
GWP2754

147' : 17564-0845
RST3988

154' : 18013-0601
J 2511

163' : 17587-0620
GWP2750

163' : 18057-0537
J 3269

164' : 18120-0601
A 37AB



Selections
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Binary Systems
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Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18061-0819 HDS 2551 (HD 165402)

 
 
18h 06m 07.40s -08° 19' 26.1" P.A. 91.00 sep 0.1 mag 6.09,7.81 Sp B8III-IV dist. 158.73 pc (517.78 l.y.)
 
 
Coord 2000 18061-0819 Discov num HDS2551 Comp Coord arcsec 2000 18 06 07.40 -08 19 26.1
Date first 1991 Date last 2021 Obs 7
Pa first 62 Pa last 90.6 P.A. Now (θ) 90.6°
Sep first 0.4 Sep last 0.149 Sep. Now (ρ) 0.149"
Mag pri 6.09 Mag sec 7.81 delta mag (ΔM) 1.72 Spectral class B8III-IV (blue-white)
Pri motion ra -002 Sec motion ra
Pri motion dec -017 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 165402 Constellation Serpens SAO 142083 HIP 88670
Tycho2 5675-00663-1 Gaia DR2 4158888511447492736 HD 165402 HR 6755
GC 24656 BD BD-08 4558 FK5 3436 Distance 158.73
Distance ly 517.78
 
 
WDS 18061-0819 HDS 2551 (HD 165402) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18061-0819 HDS2551 1996 3 64 0.4 6.10 7.81 B8III-IV 180607.40-081926.1
18061-0819 HDS2551 2003 4 77 0.3 6.10 7.81 B8III-IV D 180607.40-081926.1
18061-0819 HDS2551 2019 4 86 0.2 6.10 7.81 B8III-IV 180607.40-081926.1
18061-0819 HDS2551 2020 5 89 0.2 6.10 7.81 B8III-IV 180607.40-081926.1
18061-0819 HDS2551 2021 6 91 0.1 6.09 7.81 B8III-IV 180607.40-081926.1

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

 
 
WDS 18061-0819 HDS 2551 (HD 165402) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18061-0819 HDS 2551 (HD 165402) : MEASURES
 
 
No records found.

 
 
WDS 18061-0819 (HD 165402) : VIRTUAL EYEPIECE
 
 

18061-0819 HDS2551A mag 6.09 Sp B8III 18061-0819 HDS2551B sep 0.1 P.A. 90.60 mag 7.81 Sp IV 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 18061-0819 (HD 165402) : ALADIN DSS IMAGE @ 18h 06m 07.40s -08° 19' 26.1"
 
 
 
 
WDS 18061-0819 HDS 2551 (HD 165402) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18061-0819 HDS2551 distance=0' 18060-0807 A 2595 distance=13' 18053-0823 J 1645 distance=26' 18092-0817 RST3998AB distance=46' 18092-0817 B 2856AB,C distance=46' 18031-0811 STF2262AB distance=46' 18031-0811 STF2262AC distance=46' 18096-0755 NSN 142 distance=58' 18099-0755 HDS2561 distance=61' 18081-0707 RST3997 distance=79' 18025-0719 RST3992 distance=82' 18086-0948 HDS2557 distance=97' 17596-0820 GWP2751 distance=97' 18108-0710 RST3999 distance=99' 18007-0717 LDS 621 distance=103' 18131-0747 RST4001 distance=109' 18004-0929 RST3990 distance=110' 18124-0718 A 36A,BC distance=112' 18124-0718 A 36BC distance=113' 17589-0924 OSO 90AB distance=127' 17589-0924 OSO 90AC distance=127' 18015-1014 BU 47 distance=134' 17593-0651 STF2250AB distance=135' 17593-0651 SIN 106AC distance=135' 18009-1012 HU 236 distance=137' 18099-1027 TSN 186 distance=140' 18154-0850 BRT 476 distance=140' 18010-1020 GWP2754 distance=143' 17564-0845 RST3988 distance=147' 18013-0601 J 2511 distance=154' 17587-0620 GWP2750 distance=163' 18057-0537 J 3269 distance=163' 18120-0601 A 37AB distance=164' 17550-0744 LLO 14 distance=170' 18008-0552 RST5546AB distance=176' 18174-0717 HJ 857 distance=179' 18160-1006 HU 58 distance=181' 17589-1046 KPP1587 distance=182' 18034-1118 BRT2743 distance=184' 18181-0920 TDT 782 distance=188' 18174-0946 HDS2584 distance=188' 17531-0852 HDS2523 distance=196' 18181-0943 RST4584 distance=197' 17530-0755 STF3128AB distance=197' 17530-0755 STF3128AC distance=197' 17599-0525 A 34 distance=198' 17527-0757 STF2234 distance=201' 18188-0929 RST4585 distance=201' 18193-0735 LDT 15 distance=201' 18131-0528 RST4582 distance=202' 18114-0512 HO 267 distance=204' 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 18061-0819 HDS2551 91 0.1
Show 18060-0807 A 2595 45 2.9 13
Show 18053-0823 J 1645 4 5.5 26
Show 18092-0817 RST3998 AB 161 0.4 46
Show 18092-0817 B 2856 AB,C 123 11.9 46
Show 18031-0811 STF2262 AB 291 1.4 46
Show 18031-0811 STF2262 AC 125 100.8 46
Show 18096-0755 NSN 142 44 25.1 58
Show 18099-0755 HDS2561 16 0.9 61
Show 18081-0707 RST3997 82 1.3 79
Show 18025-0719 RST3992 236 0.6 82
Show 18086-0948 HDS2557 252 0.6 97
Show 17596-0820 GWP2751 127 23.6 97
Show 18108-0710 RST3999 176 0.2 99
Show 18007-0717 LDS 621 298 7.2 103
Show 18131-0747 RST4001 278 1.9 109
Show 18004-0929 RST3990 93 2.4 110
Show 18124-0718 A 36 A,BC 40 70.1 112
Show 18124-0718 A 36 BC 207 1.3 113
Show 17589-0924 OSO 90 AB 124 20.9 127
Show 17589-0924 OSO 90 AC 207 22.6 127
Show 18015-1014 BU 47 76 0.6 134
Show 17593-0651 STF2250 AB 344 7.8 135
Show 17593-0651 SIN 106 AC 92 45.0 135
Show 18009-1012 HU 236 156 0.2 137
Show 18099-1027 TSN 186 38 0.8 140
Show 18154-0850 BRT 476 135 4.0 140
Show 18010-1020 GWP2754 219 28.3 143
Show 17564-0845 RST3988 36 0.8 147
Show 18013-0601 J 2511 74 4.7 154
Show 17587-0620 GWP2750 67 8.8 163
Show 18057-0537 J 3269 65 6.4 163
Show 18120-0601 A 37 AB 33 2.4 164
Show 17550-0744 LLO 14 293 5.9 170
Show 18008-0552 RST5546 AB 130 1.0 176
Show 18174-0717 HJ 857 18 21.3 179
Show 18160-1006 HU 58 127 0.7 181
Show 17589-1046 KPP1587 359 12.1 182
Show 18034-1118 BRT2743 337 3.8 184
Show 18181-0920 TDT 782 85 0.4 188
Show 18174-0946 HDS2584 352 0.7 188
Show 17531-0852 HDS2523 253 0.3 196
Show 18181-0943 RST4584 118 1.1 197
Show 17530-0755 STF3128 AB 50 1.3 197
Show 17530-0755 STF3128 AC 86 97.1 197
Show 17599-0525 A 34 290 1.4 198
Show 17527-0757 STF2234 198 16.9 201
Show 18188-0929 RST4585 17 0.7 201
Show 18193-0735 LDT 15 133 0.5 201
Show 18131-0528 RST4582 325 0.6 202
Show 18114-0512 HO 267 353 14.5 204

 
 
WDS 18061-0819 : COMPONENTS
 
 
  A
B pa=90.6°
sep=0.15"
 
 
18061-0819 A
 
 
Componente originario normalizzato AB Name HD 165402 Coord arcsec 2000 180607.40-081926.1 Mag 6.09
Spectral class B8III (blue-white) PmRA -2.00 PmDE -17.0 SAO 142083
HIP 88670 Tycho2 5675-00663-1 HD 165402 HR 6755
GC 24656 BD BD-08 4558 FK5 3436
Tycho2
Tycho2 5675-00663-1 Pflag RAmdeg 271.53083241 DEmdeg -8.32395495
PmRA -7.9 PmDE -20.1 E RAmdeg 4 E DEmdeg 4
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.47 EpDEm 1991.31
Num 16 Q RAmdeg 1.2 Q DEmdeg 0.8 Q pmRA 1.3
Q pmDE 0.7 BTmag 6.070 E BTmag 0.014 VTmag 5.882
E VTmag 0.010 Prox 999 TYC T HIP 88670
CCDM AB RAdeg 271.53085083 DEdeg -8.32390833 EpRA 1990 1.80
EpDE 1990 1.68 E RAdeg 3.5 E DEdeg 4.0 Posflg P
Corr 0.1
SAO
SAO 142083 DelFlag RA1950 PmRA1950 0.0002
DE1950 PmDE1950 -0.018 Vmag 5.8 SpType B8
Double code Source 70 CatNum 24656 DM BD-08 4558
DMcomp BDsup HD 165402 M HD 0
GC 24656 RA1950rad 4.72721597 DE1950rad -0.14537749 PmRA2000 0.0004
PmDE2000 -0.016
Hipparcos
Catalog H HIP 88670 Proxy H RAhms 18 06 07.40
DEdms -08 19 26.1 Vmag 5.84 VarFlag R Vmag H
RAdeg 271.531 DEdeg -8.32392 AstroRef A Plx 5.72
CCDM 18061-0819 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 62 Rho 0.416 HD 165402 BD BD-08 4558
CD CP Dm number -08 4558 VIred 0.16
SpType B8III-IV R SpType Coord arcsec 2000 180607.40-081926.1
Hipparcos 2
HIP 88670 Sn 15 So 3 Nc 2
RArad 4.739107129 DErad -0.1452797244 Plx 6.3 PmRA -3.76
PmDE -16.57 E RArad 0.71 E DErad 0.44 E Plx 0.76
E pmRA 0.82 E pmDE 0.51 Hpmag 5.897 E Hpmag 0.0011
SHp 0.007 VA 0 BV 0.184 E BV 0.006
VI 0.2
CCDM
Ccdm 18061-0819 RComp Comp A Note1
Note2 Discov num DRAs 1.39 DDEs -26.2
R dRAs 82 Year Theta Rho
Obs 2 Vmag 6.1 Sp B8 PmNote *
PmRA -2 PmDE -17 Dm number -08 4558 Cat1 BD
Name2 142083 Cat2 SAO HD 165402 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 88670
 
 
18061-0819 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 180607.41-081926.1 Mag 7.81 Spectral class IV
Calc delta mag 1.72 Calc coord yes
CCDM
Ccdm 18061-0819 RComp Comp B Note1
Note2 Discov num HDS DRAs 1.43 DDEs -26.0
R dRAs 82 Year 1991 Theta 62 Rho 0.4
Obs 1 Vmag 7.8 Sp PmNote *
PmRA -2 PmDE -17 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 88670