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Doubles in session


Current system
17593-0651
STF 2250 AB
HD 163998


Nearby doubles
33' : 17587-0620
GWP2750

33' : 18007-0717
LDS 621

55' : 18025-0719
RST3992

57' : 18013-0601
J 2511

60' : 18008-0552
RST5546AB

84' : 17550-0744
LLO 14

87' : 17599-0525
A 34

89' : 17596-0820
GWP2751

98' : 18031-0811
STF2262AB

102' : 17525-0649
WFC 200

106' : 17533-0556
HO 561

109' : 17526-0609
EVS 32AB

109' : 17591-0503
LSC 82

114' : 17530-0755
STF3128AB

118' : 17527-0757
STF2234

121' : 18057-0537
J 3269

122' : 17564-0845
RST3988

122' : 17556-0503
RST5545AB

122' : 18053-0823
J 1645

126' : 18060-0807
A 2595

133' : 18081-0707
RST3997

135' : 18061-0819
HDS2551

137' : 17526-0519
HO 422

139' : 17505-0603
LAF 59AB

141' : 18004-0432
SUB 8

145' : 17587-0428
BRT 473



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

17593-0651 STF 2250 AB (HD 163998)

 
 
17h 59m 18.09s -06° 51' 21.2" P.A. 344.00 sep 7.8 mag 8.79,9.24 Sp B9 dist. 645.16 pc (2104.51 l.y.)
 
 
Coord 2000 17593-0651 Discov num STF2250 Comp AB Coord arcsec 2000 17 59 18.09 -06 51 21.2
Date first 1830 Date last 2020 Obs 43
Pa first 347 Pa last 343.6 P.A. Now (θ) 343.6°
Sep first 8.6 Sep last 7.784 Sep. Now (ρ) 7.784"
Mag pri 8.79 Mag sec 9.24 delta mag (ΔM) 0.45 Spectral class B9 (blue-white)
Pri motion ra -005 Sec motion ra -005
Pri motion dec -008 Sec motion dec -010
Notes N (See Notes)
rPM=0.179 (< 0.3, Physical double)
This double is physical.
 
 
17593-0651 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 163998 142008 17 59 18 -06 51 21 STF 2250 AB 2020 43 344 7.8 8.79 9.24 0.45 <===
Show 142008 17 59 18 -06 51 21 SIN 106 AC 2015 7 92 45.0 8.79 14.21 5.42
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 163998 Constellation Ophiuchus SAO 142008 HIP 88078
Tycho2 5095-00443-1 Gaia DR2 4172046401447484672 HD 163998 BD BD-06 4689
Distance 645.16 Distance ly 2104.51
 
 
WDS 17593-0651 STF 2250 AB (HD 163998) : NOTES
 
 
discov_num notes refcode
STF2250 Same as STF2249.
 
 
DISCOVERER
 
 
discov author
SIN Sinachopoulos, D.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
17593-0651 STF2250 AB 2005 27 344 7.8 8.79 9.24 B9 -06 4689 N D 175918.09-065121.2
17593-0651 STF2250 AB 2011 29 344 7.8 8.79 9.24 B9 -06 4689 N D 175918.09-065121.2
17593-0651 STF2250 AB 2013 31 344 7.8 8.79 9.24 B9 -06 4689 N 175918.09-065121.2
17593-0651 STF2250 AB 2015 35 343 7.8 8.79 9.24 B9 -06 4689 N 175918.09-065121.2
17593-0651 STF2250 AB 2019 40 344 7.8 8.79 9.24 B9 -06 4689 N 175918.09-065121.2
17593-0651 STF2250 AB 2020 43 344 7.8 8.79 9.24 B9 -06 4689 N 175918.09-065121.2

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

 
 
WDS 17593-0651 STF 2250 AB (HD 163998) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17593-0651 STF 2250 AB (HD 163998) : MEASURES
 
 
No records found.

 
 
WDS 17593-0651 (HD 163998) : VIRTUAL EYEPIECE
 
 

17593-0651 STF2250A mag 8.79 Sp B9 17593-0651 STF2250B sep 7.8 P.A. 343.60 mag 9.24 17593-0651 SIN 106C sep 45.0 P.A. 92.30 mag 14.21 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 17593-0651 (HD 163998) : ALADIN DSS IMAGE @ 17h 59m 18.09s -06° 51' 21.2"
 
 
 
 
WDS 17593-0651 STF 2250 AB (HD 163998) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17593-0651 STF2250AB distance=0' 17587-0620 GWP2750 distance=33' 18007-0717 LDS 621 distance=33' 18025-0719 RST3992 distance=55' 18013-0601 J 2511 distance=57' 18008-0552 RST5546AB distance=60' 17550-0744 LLO 14 distance=84' 17599-0525 A 34 distance=87' 17596-0820 GWP2751 distance=89' 18031-0811 STF2262AB distance=98' 18031-0811 STF2262AC distance=98' 17525-0649 WFC 200 distance=102' 17533-0556 HO 561 distance=106' 17526-0609 EVS 32AB distance=109' 17526-0609 KRV 46AC distance=109' 17591-0503 LSC 82 distance=109' 17530-0755 STF3128AB distance=114' 17530-0755 STF3128AC distance=114' 17527-0757 STF2234 distance=118' 18057-0537 J 3269 distance=121' 17564-0845 RST3988 distance=122' 17556-0503 RST5545AB distance=122' 17556-0503 GII 255Aa,Ab distance=122' 18053-0823 J 1645 distance=122' 18060-0807 A 2595 distance=126' 18081-0707 RST3997 distance=133' 18061-0819 HDS2551 distance=135' 17526-0519 HO 422 distance=137' 17505-0603 LAF 59AB distance=139' 17505-0603 LAF 59AC distance=139' 17505-0603 LAF 59AD distance=139' 17505-0603 LAF 59AE distance=139' 17505-0603 LAF 59AF distance=139' 17505-0603 LAF 59AG distance=139' 17505-0603 LAF 59AH distance=139' 17505-0603 LAF 59AI distance=139' 17505-0603 LAF 59AJ distance=139' 17505-0603 LAF 59AK distance=139' 17505-0603 LAF 59AL distance=139' 17505-0603 LAF 59AM distance=139' 17505-0603 LAF 59AN distance=139' 17505-0603 LAF 59AO distance=139' 17505-0603 LAF 59AP distance=139' 17505-0603 LAF 59AQ distance=139' 17505-0603 LAF 59AR distance=139' 17505-0603 LAF 59AS distance=139' 17505-0603 LAF 59AT distance=139' 17505-0603 LAF 59AU distance=139' 17505-0603 LAF 59AV distance=139' 17505-0603 LAF 59AW distance=139' 17505-0603 LAF 59AX distance=139' 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 17593-0651 STF2250 AB 344 7.8 0
Show 17593-0651 SIN 106 AC 92 45.0 0
Show 17587-0620 GWP2750 67 8.8 33
Show 18007-0717 LDS 621 298 7.2 33
Show 18025-0719 RST3992 236 0.6 55
Show 18013-0601 J 2511 74 4.7 57
Show 18008-0552 RST5546 AB 130 1.0 60
Show 17550-0744 LLO 14 293 5.9 84
Show 17599-0525 A 34 290 1.4 87
Show 17596-0820 GWP2751 127 23.6 89
Show 18031-0811 STF2262 AB 292 1.4 98
Show 18031-0811 STF2262 AC 125 100.8 98
Show 17525-0649 WFC 200 272 9.5 102
Show 17533-0556 HO 561 328 35.4 106
Show 17526-0609 EVS 32 AB 212 18.1 109
Show 17526-0609 KRV 46 AC 199 81.3 109
Show 17591-0503 LSC 82 150 0.5 109
Show 17530-0755 STF3128 AB 50 1.3 114
Show 17530-0755 STF3128 AC 86 97.1 114
Show 17527-0757 STF2234 198 16.9 118
Show 18057-0537 J 3269 65 6.4 121
Show 17564-0845 RST3988 36 0.8 122
Show 17556-0503 RST5545 AB 283 1.0 122
Show 17556-0503 GII 255 Aa,Ab 156 0.1 122
Show 18053-0823 J 1645 4 5.5 122
Show 18060-0807 A 2595 45 2.9 126
Show 18081-0707 RST3997 82 1.3 133
Show 18061-0819 HDS2551 98 0.1 135
Show 17526-0519 HO 422 352 0.1 137
Show 17505-0603 LAF 59 AB 119 2.8 139
Show 17505-0603 LAF 59 AC 5 3.3 139
Show 17505-0603 LAF 59 AD 154 3.4 139
Show 17505-0603 LAF 59 AE 245 3.7 139
Show 17505-0603 LAF 59 AF 153 3.9 139
Show 17505-0603 LAF 59 AG 159 4.2 139
Show 17505-0603 LAF 59 AH 23 4.4 139
Show 17505-0603 LAF 59 AI 112 4.5 139
Show 17505-0603 LAF 59 AJ 300 4.7 139
Show 17505-0603 LAF 59 AK 80 5.0 139
Show 17505-0603 LAF 59 AL 349 5.2 139
Show 17505-0603 LAF 59 AM 192 5.2 139
Show 17505-0603 LAF 59 AN 124 5.2 139
Show 17505-0603 LAF 59 AO 72 6.1 139
Show 17505-0603 LAF 59 AP 159 6.6 139
Show 17505-0603 LAF 59 AQ 85 6.7 139
Show 17505-0603 LAF 59 AR 353 6.9 139
Show 17505-0603 LAF 59 AS 91 7.1 139
Show 17505-0603 LAF 59 AT 79 7.3 139
Show 17505-0603 LAF 59 AU 177 7.4 139
Show 17505-0603 LAF 59 AV 18 7.4 139
Show 17505-0603 LAF 59 AW 75 7.5 139

 
 
WDS 17593-0651 : COMPONENTS
 
 
  A B
B pa=343.6°
sep=7.78"
 
C pa=92.3°
sep=45.01"
pa=101.1°
sep=48.07"
 
 
17593-0651 A
 
 
Name HD 163998 Coord arcsec 2000 175918.09-065121.2 Mag 8.79 Spectral class B9 (blue-white)
PmRA -5.00 PmDE -8.0 SAO 186048 HIP 88078
Tycho2 5095-00443-1 BD BD-06 4689
Tycho2
Tycho2 5095-00443-1 Pflag RAmdeg 269.82538043 DEmdeg -6.85592832
PmRA -3.3 PmDE -9.7 E RAmdeg 10 E DEmdeg 14
E pmRA 1.5 E pmDE 1.6 EpRAm 1991.37 EpDEm 1990.91
Num 5 Q RAmdeg 0.9 Q DEmdeg 1.5 Q pmRA 0.9
Q pmDE 1.5 BTmag 9.351 E BTmag 0.025 VTmag 8.788
E VTmag 0.018 Prox 78 TYC T HIP 88078
CCDM A RAdeg 269.82538778 DEdeg -6.85590611 EpRA 1990 1.83
EpDE 1990 1.76 E RAdeg 9.9 E DEdeg 13.5 Posflg
Corr -0.2
SAO
SAO 186048 DelFlag RA1950 PmRA1950 -0.002
DE1950 PmDE1950 -0.027 Vmag 8.9 SpType B9
Double code Source 24 CatNum 11521 DM CD-2914296
DMcomp BDsup HD 163816 M HD 0
GC RA1950rad 4.69570967 DE1950rad -0.51454107 PmRA2000 -0.0021
PmDE2000 -0.027
Hipparcos
Catalog H HIP 88078 Proxy H RAhms 17 59 18.09
DEdms -06 51 21.2 Vmag 8.08 VarFlag R Vmag H
RAdeg 269.825 DEdeg -6.8559 AstroRef A Plx 3.22
CCDM -0.47 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 344 Rho 7.818 HD BD BD-06 4689
CD CP Dm number -06 4689 VIred 0.8
SpType B8II-III+.. R SpType Coord arcsec 2000 175918.09-065121.2
Hipparcos 2
HIP 88078 Sn 15 So 3 Nc 2
RArad 4.7093413286 DErad -0.1196580591 Plx 1.55 PmRA -0.05
PmDE -8.58 E RArad 1.18 E DErad 0.8 E Plx 1.33
E pmRA 1.91 E pmDE 0.89 Hpmag E Hpmag 0.0023
SHp 0.012 VA 0 BV 0.762 E BV 0.003
VI 0.81
CCDM
Ccdm 17593-0651 RComp Comp A Note1
Note2 Discov num DRAs 0.01 DDEs -20.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.0 Sp B9 PmNote *
PmRA -10 PmDE -4 Dm number -06 4689 Cat1 BD
Name2 142008 Cat2 SAO HD 163998 M HD
ADS BDS A10947 M ADS BDS N IDS IDS 17539S0651A
HIC 88078
 
 
17593-0651 B
 
 
Coord arcsec 2000 175917.94-065113.7 Mag 9.24 PmRA -5.00 PmDE -10.0
Tycho2 5095-01039-1 Delta magnitude 0.45 Coordinate calculated yes
Tycho2
Tycho2 5095-01039-1 Pflag RAmdeg 269.82477581 DEmdeg -6.85383559
PmRA -2.7 PmDE -9.6 E RAmdeg 14 E DEmdeg 20
E pmRA 1.7 E pmDE 1.7 EpRAm 1991.08 EpDEm 1990.34
Num 4 Q RAmdeg 1.3 Q DEmdeg 2.3 Q pmRA 1.3
Q pmDE 2.5 BTmag 9.783 E BTmag 0.031 VTmag 9.238
E VTmag 0.025 Prox 78 TYC T HIP 88078
CCDM B RAdeg 269.82478222 DEdeg -6.85381333 EpRA 1990 1.82
EpDE 1990 1.70 E RAdeg 13.6 E DEdeg 19.9 Posflg
Corr -0.2
CCDM
Ccdm 17593-0651 RComp Comp B Note1
Note2 Discov num STF2250 DRAs -0.14 DDEs -13.3
R dRAs 90 Year 1830 Theta 345 Rho 7.8
Obs 9 Vmag 10.0 Sp PmNote
PmRA -10 PmDE -4 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10947 M ADS BDS N IDS IDS 17539S0651B
HIC 88078
 
 
17593-0651 C
 
 
Coord arcsec 2000 175921.11-065123.0 Mag 14.21 Delta magnitude 5.42 Coordinate calculated yes