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Doubles in session


Current system
16514+0113
STT 315
21 Oph


Nearby doubles
4' : 16514+0109
STF2105

45' : 16516+0028
GRV 940

45' : 16523+0156
UC 3245

50' : 16544+0135
RST5420

55' : 16485+0144
BAL1479

61' : 16475+0127
RST5419

72' : 16561+0125
BEW 5

73' : 16471+0143
RST5418

75' : 16474+0029
BAL1185

80' : 16541+0004
WIS 306

82' : 16472+0204
STF2096AB

85' : 16464+0149
TDT 77

85' : 16569+0055
UC 3257

86' : 16458+0103
J 1331

88' : 16469+0210
BAL1925

89' : 16458-0046
A 1141

91' : 16468+0211
UC 3231

92' : 16469+0215
ENG 58AB

94' : 16471+0220
UC 3232

95' : 16485+0237
BAL1927

95' : 16574-0041
UC 3261

100' : 16560+0224
BAL1928

102' : 16580+0139
BAL1480

103' : 16467+0226
BAL1924

103' : 16483+0244
BU 43

104' : 16449+0039
RST5416



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

16514+0113 STT 315 (21 Oph)

 
 
16h 51m 24.94s +01° 12' 57.5" P.A. 309.00 sep 0.8 mag 5.78,7.26 Sp A2Vs dist. 116.14 pc (378.85 l.y.)
 
 
Coord 2000 16514+0113 Discov num STT 315 Comp Coord arcsec 2000 16 51 24.94 +01 12 57.5
Date first 1843 Date last 2019 Obs 223
Pa first 161 Pa last 309 P.A. Now (θ) 309°
Sep first 0.8 Sep last 0.75 Sep. Now (ρ) 0.75"
Mag pri 5.78 Mag sec 7.26 delta mag (ΔM) 1.48 Spectral class A2Vs (white)
Pri motion ra -024 Sec motion ra
Pri motion dec -012 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 21 Oph Constellation Ophiuchus SAO 121911 HIP 82480
Tycho2 0384-02284-1 Gaia DR2 4384585813018600448 HD 152127 HR 6255
GC 22688 ADS 10230 BD BD+01 3323 Flamsteed 21 Ophiuchi
Flamsteed name 21 Oph Distance 116.14 Distance ly 378.85
 
 
ORBITAL ELEMENTS
 
 
Period (P)990y Periastron (T)1976.7y Semi-major axis (a)1.556a
Eccentricity (e)0.798 Inclination (i)114.3° Longitude of periastron (ω)82.5°
Node (Ω)133.7° Notesn ReferenceDoc2017e
Equinox2000 Last observation2014 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 318.9 0.518
2001 318.1 0.533
2002 317.4 0.549
2003 316.7 0.563
2004 316.0 0.578
2005 315.4 0.592
2006 314.8 0.606
2007 314.2 0.619
2008 313.6 0.632
2009 313.1 0.645
2010 312.6 0.658
2011 312.1 0.670
2012 311.6 0.682
2013 311.1 0.693
2014 310.7 0.705
2015 310.3 0.716
2016 309.8 0.726
2017 309.4 0.737
2018 309.0 0.747
2019 308.7 0.757
2020 308.3 0.767
2021 307.9 0.777
2022 307.6 0.787
2023 307.2 0.796
2024 306.9 0.805
2025 306.5 0.814
2026 306.2 0.823
2027 305.9 0.831
2028 305.6 0.840
2029 305.3 0.848
2030 305.0 0.856


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


 
  


wds16514%2B0113b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 16514+0113 STT 315 (21 Oph) : NOTES
 
 
discov_num notes refcode
STT 315 21 Oph. Premature orbits have been calculated.
 
 
REFERENCES
 
 
refcode metd author reference
Doc2017e orb - Docobo, J.A. & Ling, J.F. 2017IAUDS.192....1D
Doc2017e Inf. Circ. 192, 1, 2017
 
 
DISCOVERER
 
 
idgroup discov author
1 STT Struve, O.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16514+0113 STT 315 2005 212 317 0.6 5.78 7.26 A2Vs NOD 165124.94+011257.5
16514+0113 STT 315 2010 215 311 0.6 5.78 7.26 A2Vs NOD 165124.94+011257.5
16514+0113 STT 315 2011 219 312 0.7 5.78 7.26 A2Vs NOD 165124.94+011257.5
16514+0113 STT 315 2014 219 311 0.7 5.78 7.26 A2Vs NOD 165124.94+011257.5
16514+0113 STT 315 2016 221 310 0.7 5.78 7.26 A2Vs NO 165124.94+011257.5
16514+0113 STT 315 2018 222 311 0.6 5.78 7.26 A2Vs NO 165124.94+011257.5
16514+0113 STT 315 2019 223 309 0.8 5.78 7.26 A2Vs NO 165124.94+011257.5

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

 
 
WDS 16514+0113 STT 315 (21 Oph) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 16514+0113 STT 315 (21 Oph) : MEASURES
 
 
No records found.

 
 
WDS 16514+0113 (21 Oph) : VIRTUAL EYEPIECE
 
 

16514+0113 STT 315A mag 5.78 Sp A2Vs 16514+0113 STT 315B sep 0.8 P.A. 309.00 mag 7.26 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 16514+0113 (21 Oph) : ALADIN DSS IMAGE @ 16h 51m 24.94s +01° 12' 57.5"
 
 
 
 
WDS 16514+0113 STT 315 (21 Oph) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

16514+0113 STT 315 distance=0' 16514+0109 STF2105 distance=4' 16516+0028 GRV 940 distance=45' 16523+0156 UC 3245 distance=45' 16544+0135 RST5420 distance=50' 16485+0144 BAL1479 distance=55' 16475+0127 RST5419 distance=61' 16561+0125 BEW 5 distance=72' 16471+0143 RST5418 distance=73' 16474+0029 BAL1185 distance=75' 16541+0004 WIS 306 distance=80' 16472+0204 STF2096AB distance=82' 16472+0204 STF2096AC distance=82' 16472+0204 GMC 4AD distance=82' 16464+0149 TDT 77 distance=85' 16569+0055 UC 3257 distance=85' 16458+0103 J 1331 distance=86' 16469+0210 BAL1925 distance=88' 16458-0046 A 1141 distance=89' 16468+0211 UC 3231 distance=91' 16469+0215 BUP 173BC distance=92' 16469+0215 ENG 58AB distance=92' 16471+0220 UC 3232 distance=94' 16485+0237 BAL1927 distance=95' 16574-0041 UC 3261 distance=95' 16560+0224 BAL1928 distance=100' 16580+0139 BAL1480 distance=102' 16467+0226 BAL1924 distance=103' 16483+0244 BU 43 distance=103' 16449+0039 RST5416 distance=104' 16477+0242 BAL1926 distance=105' 16564+0227 BAL1930 distance=106' 16536+0254 BAL2428 distance=107' 16451-0025 KPP 377 distance=107' 16452+0206 KPP1699 distance=108' 16445+0142 GWP2660 distance=109' 16461+0228 GWP2663 distance=110' 16561+0241 BAL1929 distance=113' 16443-0033 STF2086 distance=114' 16442+0148 GWP2658 distance=115' 16439-0032 J 448AB distance=121' 16439-0032 GLP 12AC distance=121' 16447+0220 STF2088AB distance=121' 16447+0220 STF2088AC distance=121' 16523+0313 FMR 229 distance=122' 16447+0220 STF2088BC distance=122' 16473+0257 BAL2424 distance=122' 16442-0014 J 93 distance=124' 16599+0121 BAL1481 distance=127' 16444+0224 BAL1921 distance=128' 16490+0315 KU 114 distance=128' 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 16514+0113 STT 315 309 0.8
Show 16514+0109 STF2105 129 29.0 4
Show 16516+0028 GRV 940 340 45.3 45
Show 16523+0156 UC 3245 325 12.6 45
Show 16544+0135 RST5420 353 3.4 50
Show 16485+0144 BAL1479 14 5.4 55
Show 16475+0127 RST5419 336 5.4 61
Show 16561+0125 BEW 5 187 9.7 72
Show 16471+0143 RST5418 30 4.5 73
Show 16474+0029 BAL1185 304 7.8 75
Show 16541+0004 WIS 306 344 757.0 80
Show 16472+0204 STF2096 AB 88 23.9 82
Show 16472+0204 STF2096 AC 193 214.3 82
Show 16472+0204 GMC 4 AD 270 88.6 82
Show 16464+0149 TDT 77 318 0.5 85
Show 16569+0055 UC 3257 2 32.6 85
Show 16458+0103 J 1331 235 4.2 86
Show 16469+0210 BAL1925 207 1.1 88
Show 16458-0046 A 1141 57 0.1 89
Show 16468+0211 UC 3231 262 41.7 91
Show 16469+0215 BUP 173 BC 172 77.8 92
Show 16469+0215 ENG 58 AB 217 149.1 92
Show 16471+0220 UC 3232 135 52.9 94
Show 16485+0237 BAL1927 3 21.5 95
Show 16574-0041 UC 3261 208 27.5 95
Show 16560+0224 BAL1928 354 8.0 100
Show 16580+0139 BAL1480 285 16.5 102
Show 16467+0226 BAL1924 331 12.9 103
Show 16483+0244 BU 43 53 1.4 103
Show 16449+0039 RST5416 282 0.8 104
Show 16477+0242 BAL1926 105 12.9 105
Show 16564+0227 BAL1930 24 13.2 106
Show 16536+0254 BAL2428 278 11.0 107
Show 16451-0025 KPP 377 209 3.5 107
Show 16452+0206 KPP1699 349 13.1 108
Show 16445+0142 GWP2660 165 11.1 109
Show 16461+0228 GWP2663 95 34.1 110
Show 16561+0241 BAL1929 323 12.9 113
Show 16443-0033 STF2086 157 13.9 114
Show 16442+0148 GWP2658 40 58.9 115
Show 16439-0032 J 448 AB 145 2.6 121
Show 16439-0032 GLP 12 AC 300 105.5 121
Show 16447+0220 STF2088 AB 329 21.7 121
Show 16447+0220 STF2088 AC 352 16.4 121
Show 16523+0313 FMR 229 148 7.1 122
Show 16447+0220 STF2088 BC 105 8.3 122
Show 16473+0257 BAL2424 242 16.3 122
Show 16442-0014 J 93 126 2.9 124
Show 16599+0121 BAL1481 305 5.4 127
Show 16444+0224 BAL1921 100 9.5 128
Show 16490+0315 KU 114 113 60.6 128

 
 
WDS 16514+0113 : COMPONENTS
 
 
  A
B pa=309.0°
sep=0.75"
 
 
16514+0113 A
 
 
Componente originario normalizzato AB Name 21 Oph Coord arcsec 2000 165124.94+011257.5 Mag 5.78
Spectral class A2Vs (white) PmRA -24.00 PmDE -12.0 SAO 121911
HIP 82480 Tycho2 0384-02284-1 HD 152127 HR 6255
GC 22688 BD BD+01 3323 Flamsteed 21 Ophiuchi Flamsteed name 21 Oph
Tycho2
Tycho2 0384-02284-1 Pflag RAmdeg 252.85384322 DEmdeg 1.21597029
PmRA -22.6 PmDE -11.0 E RAmdeg 3 E DEmdeg 4
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.51 EpDEm 1990.83
Num 14 Q RAmdeg 1.3 Q DEmdeg 1.8 Q pmRA 1.4
Q pmDE 1.8 BTmag 5.582 E BTmag 0.014 VTmag 5.521
E VTmag 0.009 Prox 999 TYC T HIP 82480
CCDM AB RAdeg 252.85389528 DEdeg 1.21599722 EpRA 1990 1.71
EpDE 1990 1.18 E RAdeg 3.3 E DEdeg 3.7 Posflg P
Corr 0.0
SAO
SAO 121911 DelFlag RA1950 PmRA1950 -0.0017
DE1950 PmDE1950 -0.006 Vmag 5.5 SpType A0
Double code Source 70 CatNum 22688 DM BD+01 3323
DMcomp BDsup HD 152127 M HD 0
GC 22688 RA1950rad 4.40205575 DE1950rad 0.02268618 PmRA2000 -0.0015
PmDE2000 -0.005
Hipparcos
Catalog H HIP 82480 Proxy H RAhms 16 51 24.94
DEdms +01 12 57.5 Vmag 5.51 VarFlag R Vmag H
RAdeg 252.854 DEdeg 1.21598 AstroRef A Plx 9.45
CCDM 16514+0113 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 328 Rho 0.363 HD 152127 BD BD+01 3323
CD CP Dm number +01 3323 VIred 0.06
SpType A2Vs R SpType Coord arcsec 2000 165124.94+011257.5
Hipparcos 2
HIP 82480 Sn 15 So 3 Nc 2
RArad 4.4131332803 DErad 0.021222878 Plx 8.61 PmRA -17.51
PmDE -13.96 E RArad 0.51 E DErad 0.41 E Plx 0.59
E pmRA 0.53 E pmDE 0.5 Hpmag 5.5303 E Hpmag 0.0009
SHp 0.005 VA 0 BV 0.055 E BV 0.004
VI 0.07
CCDM
Ccdm 16514+0113 RComp Comp A Note1
Note2 Discov num DRAs 0.95 DDEs -2.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.7 Sp A0 PmNote *
PmRA -13 PmDE -14 Dm number +01 3323 Cat1 BD
Name2 +01 1896 Cat2 AGK2/3 HD 152127 M HD
ADS BDS A10230 M ADS BDS N IDS IDS 16464N0123A
HIC 82480
 
 
16514+0113 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 165124.90+011258.0 Mag 7.26 Calc delta mag 1.48
Calc coord yes
CCDM
Ccdm 16514+0113 RComp Comp B Note1 *
Note2 Discov num STT 315 DRAs DDEs
R dRAs Year 1960 Theta 128 Rho 0.5
Obs 99 Vmag 7.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10230 M ADS BDS N IDS IDS 16464N0123B
HIC 82480