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Doubles in session


Current system
16318-0701
STF 3105
HD 148931


Nearby doubles
30' : 16328-0636
RST4562

35' : 16333-0635
HJ 4864AB

74' : 16357-0617
RST4563

80' : 16288-0808
STF2048AB

83' : 16275-0609
CVR 822

86' : 16261-0657
JKS 10

88' : 16369-0746
RST3954

93' : 16325-0834
OSO 72

101' : 16278-0822
SHY 287AB

116' : 16383-0559
A 1863

121' : 16241-0627
BRT 465

123' : 16369-0525
GWP2649

125' : 16375-0530
HLD 26

126' : 16293-0501
RST4561

135' : 16368-0510
BU 819

135' : 16228-0722
A 24

136' : 16400-0605
TOK 305AB

141' : 16337-0444
PST 1

152' : 16250-0510
CVR 186

155' : 16337-0933
LAF 57AB

157' : 16321-0938
KPP 371

162' : 16385-0908
J 2667

162' : 16242-0506
UC 3163

168' : 16210-0617
YMG 78

168' : 16306-0948
NSN 152

169' : 16283-0940
LDS4671



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.

16318-0701 STF 3105 (HD 148931)

 
 
16h 31m 47.95s -07° 01' 23.9" P.A. 182.00 sep 0.6 mag 7.68,9.25 Sp A0V dist. 163.4 pc (533.01 l.y.)
 
 
Coord 2000 16318-0701 Discov num STF3105 Comp Coord arcsec 2000 16 31 47.95 -07 01 23.9
Date first 1830 Date last 2016 Obs 134
Pa first 59 Pa last 181.8 P.A. Now (θ) 181.8°
Sep first 0.4 Sep last 0.557 Sep. Now (ρ) 0.557"
Mag pri 7.68 Mag sec 9.25 delta mag (ΔM) 1.57 Spectral class A0V (white)
Pri motion ra -011 Sec motion ra -011
Pri motion dec -017 Sec motion dec -017
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 148931 Constellation Ophiuchus SAO 141223 HIP 80954
Tycho2 5060-00251-1 Gaia DR2 4351421518665318400 HD 148931 GC 22219
ADS 10092 BD BD-06 4446 Distance 163.4 Distance ly 533.01
 
 
ORBITAL ELEMENTS
 
 
Period (P)540y Periastron (T)1955y Semi-major axis (a)0.635a
Eccentricity (e)0.65 Inclination (i)127° Longitude of periastron (ω)87°
Node (Ω)17° Notes ReferenceHei1996c
Equinox2000 Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 188.8 0.441
2001 188.2 0.446
2002 187.6 0.451
2003 187.0 0.455
2004 186.4 0.460
2005 185.8 0.464
2006 185.3 0.468
2007 184.7 0.472
2008 184.2 0.476
2009 183.6 0.480
2010 183.1 0.484
2011 182.6 0.488
2012 182.1 0.492
2013 181.6 0.495
2014 181.1 0.499
2015 180.6 0.502
2016 180.1 0.505
2017 179.6 0.509
2018 179.1 0.512
2019 178.7 0.515
2020 178.2 0.518
2021 177.8 0.521
2022 177.3 0.524
2023 176.9 0.527
2024 176.4 0.530
2025 176.0 0.532
2026 175.5 0.535
2027 175.1 0.538
2028 174.7 0.540
2029 174.3 0.543
2030 173.9 0.545


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds16318-0701a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 16318-0701 STF 3105 (HD 148931) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hei1996c orb - Heintz, W.D. 1996AJ....111..412H
Hei1996c AJ 111, 412, 1996
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16318-0701 STF3105 2004 133 187 0.5 7.68 9.25 A0V NOD 163147.95-070123.9
16318-0701 STF3105 2009 136 184 0.5 7.68 9.25 A0V NOD 163147.95-070123.9
16318-0701 STF3105 2010 137 182 0.4 7.68 9.25 A0V NOD 163147.95-070123.9
16318-0701 STF3105 2016 134 182 0.6 7.68 9.25 A0V O 163147.95-070123.9

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

 
 
WDS 16318-0701 STF 3105 (HD 148931) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 16318-0701 STF 3105 (HD 148931) : MEASURES
 
 
No records found.

 
 
WDS 16318-0701 (HD 148931) : VIRTUAL EYEPIECE
 
 

16318-0701 STF3105A mag 7.68 Sp A0V 16318-0701 STF3105B sep 0.6 P.A. 181.80 mag 9.25 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 16318-0701 (HD 148931) : ALADIN DSS IMAGE @ 16h 31m 47.95s -07° 01' 23.9"
 
 
 
 
WDS 16318-0701 STF 3105 (HD 148931) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

16318-0701 STF3105 distance=0' 16328-0636 RST4562 distance=30' 16333-0635 HJ 4864AB distance=35' 16333-0635 HJ 4864AC distance=35' 16333-0635 BU 9014AD distance=35' 16357-0617 RST4563 distance=74' 16288-0808 STF2048AB distance=80' 16288-0808 STF2048AC distance=80' 16275-0609 CVR 822 distance=83' 16261-0657 JKS 10 distance=86' 16369-0746 RST3954 distance=88' 16325-0834 OSO 72 distance=93' 16278-0822 RST3949Aa,Ab distance=101' 16278-0822 SHY 287AB distance=101' 16278-0822 TOK 603AC distance=101' 16383-0559 A 1863 distance=116' 16241-0627 BRT 465 distance=121' 16369-0525 GWP2649 distance=123' 16375-0530 HLD 26 distance=125' 16293-0501 RST4561 distance=126' 16368-0510 BU 819 distance=135' 16228-0722 A 24 distance=135' 16400-0605 TOK 305AB distance=136' 16400-0605 RAO 82BC distance=138' 16337-0444 PST 1 distance=141' 16250-0510 CVR 186 distance=152' 16337-0933 LAF 57AB distance=155' 16337-0933 LAF 57AC distance=155' 16337-0933 LAF 57AD distance=155' 16337-0933 LAF 57AE distance=155' 16337-0933 LAF 57AF distance=155' 16321-0938 KPP 371 distance=157' 16385-0908 J 2667 distance=162' 16242-0506 UC 3163 distance=162' 16210-0617 YMG 78 distance=168' 16306-0948 NSN 152 distance=168' 16283-0940 LDS4671 distance=169' 16234-0859 HDS2316 distance=172' 16348-0412 GIC 144AB distance=174' 16348-0412 LMP 14AC distance=174' 16348-0412 DSG 20Aa,Ab distance=174' 16362-0945 UC 3191 distance=176' 16332-0956 RST3952 distance=177' 16384-0436 HDS2357 distance=177' 16278-0413 CVR 823 distance=179' 16263-0943 RST3945 distance=182' 16307-0359 NSN 154 distance=183' 16344-0401 FMR 154 distance=185' 16435-0807 WRH 26 distance=187' 16421-0847 RST3956 distance=188' 16202-0819 KPP2404 distance=189' 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 16318-0701 STF3105 182 0.6
Show 16328-0636 RST4562 138 0.2 30
Show 16333-0635 HJ 4864 AB 86 8.5 35
Show 16333-0635 HJ 4864 AC 147 13.0 35
Show 16333-0635 BU 9014 AD 235 74.3 35
Show 16357-0617 RST4563 23 6.5 74
Show 16288-0808 STF2048 AB 297 5.6 80
Show 16288-0808 STF2048 AC 302 130.6 80
Show 16275-0609 CVR 822 339 14.6 83
Show 16261-0657 JKS 10 151 26.5 86
Show 16369-0746 RST3954 67 0.5 88
Show 16325-0834 OSO 72 4 17.4 93
Show 16278-0822 RST3949 Aa,Ab 56 1.0 101
Show 16278-0822 SHY 287 AB 272 999.9 101
Show 16278-0822 TOK 603 AC 202 775.0 101
Show 16383-0559 A 1863 273 0.6 116
Show 16241-0627 BRT 465 292 4.6 121
Show 16369-0525 GWP2649 245 26.1 123
Show 16375-0530 HLD 26 12 6.7 125
Show 16293-0501 RST4561 38 0.2 126
Show 16368-0510 BU 819 241 1.5 135
Show 16228-0722 A 24 336 1.4 135
Show 16400-0605 TOK 305 AB 40 179.2 136
Show 16400-0605 RAO 82 BC 150 27.4 138
Show 16337-0444 PST 1 335 3.4 141
Show 16250-0510 CVR 186 196 44.9 152
Show 16337-0933 LAF 57 AB 235 6.8 155
Show 16337-0933 LAF 57 AC 5 8.6 155
Show 16337-0933 LAF 57 AD 50 9.7 155
Show 16337-0933 LAF 57 AE 68 10.0 155
Show 16337-0933 LAF 57 AF 226 14.0 155
Show 16321-0938 KPP 371 51 4.9 157
Show 16385-0908 J 2667 193 4.9 162
Show 16242-0506 UC 3163 226 8.0 162
Show 16210-0617 YMG 78 25 0.0 168
Show 16306-0948 NSN 152 158 3.8 168
Show 16283-0940 LDS4671 318 54.9 169
Show 16234-0859 HDS2316 248 0.2 172
Show 16348-0412 GIC 144 AB 36 999.9 174
Show 16348-0412 LMP 14 AC 321 93.2 174
Show 16348-0412 DSG 20 Aa,Ab 207 0.0 174
Show 16362-0945 UC 3191 306 33.5 176
Show 16332-0956 RST3952 92 2.1 177
Show 16384-0436 HDS2357 325 0.4 177
Show 16278-0413 CVR 823 171 17.5 179
Show 16263-0943 RST3945 11 0.3 182
Show 16307-0359 NSN 154 316 6.2 183
Show 16344-0401 FMR 154 107 1.0 185
Show 16435-0807 WRH 26 348 0.3 187
Show 16421-0847 RST3956 196 2.1 188
Show 16202-0819 KPP2404 82 20.8 189

 
 
WDS 16318-0701 : COMPONENTS
 
 
  A
B pa=181.8°
sep=0.56"
 
 
16318-0701 A
 
 
Componente originario normalizzato AB Name HD 148931 Coord arcsec 2000 163147.95-070123.9 Mag 7.68
Spectral class A0V (white) PmRA -11.00 PmDE -17.0 SAO 141223
HIP 80954 Tycho2 5060-00251-1 HD 148931 GC 22219
BD BD-06 4446
Tycho2
Tycho2 5060-00251-1 Pflag RAmdeg 247.94977366 DEmdeg -7.02331149
PmRA -11.0 PmDE -16.5 E RAmdeg 4 E DEmdeg 5
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.46 EpDEm 1990.69
Num 11 Q RAmdeg 1.0 Q DEmdeg 1.4 Q pmRA 0.9
Q pmDE 1.4 BTmag 7.691 E BTmag 0.015 VTmag 7.503
E VTmag 0.011 Prox 999 TYC T HIP 80954
CCDM AB RAdeg 247.94979917 DEdeg -7.02327083 EpRA 1990 1.75
EpDE 1990 1.19 E RAdeg 3.9 E DEdeg 5.0 Posflg P
Corr 0.0
SAO
SAO 141223 DelFlag RA1950 PmRA1950 -0.001
DE1950 PmDE1950 -0.027 Vmag 8.1 SpType A0
Double code Source 70 CatNum 22219 DM BD-06 4446
DMcomp BDsup HD 148931 M HD 0
GC 22219 RA1950rad 4.31580886 DE1950rad -0.1207266 PmRA2000 -0.0008
PmDE2000 -0.024
Hipparcos
Catalog H HIP 80954 Proxy H RAhms 16 31 47.96
DEdms -07 01 23.6 Vmag 7.41 VarFlag R Vmag G
RAdeg 247.95 DEdeg -7.02323 AstroRef A Plx 5.53
CCDM 16318-0701 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 195 Rho 0.405 HD 148931 BD BD-06 4446
CD CP Dm number -06 4446 VIred 0.2
SpType A0 R SpType Coord arcsec 2000 163147.96-070123.6
Hipparcos 2
HIP 80954 Sn 15 So 3 Nc 2
RArad 4.3275406684 DErad -0.1225784737 Plx 6.12 PmRA -10.8
PmDE -13.61 E RArad 0.93 E DErad 0.51 E Plx 0.97
E pmRA 1.09 E pmDE 0.95 Hpmag 7.4859 E Hpmag 0.0009
SHp 0.008 VA 0 BV 0.18 E BV 0.015
VI 0.2
CCDM
Ccdm 16318-0701 RComp Comp A Note1
Note2 Discov num DRAs -0.08 DDEs -24.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.3 Sp A0 PmNote *
PmRA -15 PmDE -28 Dm number -06 4446 Cat1 BD
Name2 141223 Cat2 SAO HD 148931 M HD
ADS BDS A10092 M ADS BDS N IDS IDS 16264S0650A
HIC 80954
 
 
16318-0701 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 163147.95-070124.5 Mag 9.25 PmRA -11.00
PmDE -17.0 Calc delta mag 1.57 Calc coord yes
CCDM
Ccdm 16318-0701 RComp Comp B Note1 *
Note2 Discov num STF3105 DRAs DDEs
R dRAs Year 1830 Theta Rho
Obs 99 Vmag 7.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10092 M ADS BDS N IDS IDS 16264S0650B
HIC 80954