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Doubles in session


Current system
16564+6502
D 30 AC


Nearby doubles
22' : 16593+6513
STF2124

46' : 17023+6436
TOI1487

61' : 16472+6454
MLR 61

62' : 17054+6440
CVR1691

68' : 17062+6438
GIC 146

74' : 17073+6440
ALP 19

74' : 16575+6349
UC 3263

76' : 17057+6552
SKF2609

81' : 16487+6359
LDS2399

88' : 17088+6543
STA 1
Aldhibah

91' : 16552+6332
STF2116

92' : 16452+6406
TDT 68

99' : 17031+6334
CVR1689

104' : 16438+6357
LDS2397

111' : 17050+6331
GRV1131

115' : 16435+6345
LDS2396

119' : 17112+6352
ES 1908

119' : 16520+6658
LDS2401

122' : 17055+6316
STI 815

127' : 16448+6647
AG 206

134' : 16515+6712
TDT 118

136' : 17105+6322
HO 558

137' : 16425+6322
LDS2395

139' : 17115+6646
SKF2664

145' : 16580+6238
GRV1128

146' : 16366+6354
LDS2394AB



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

16564+6502 D 30 AC

 
 
16h 56m 25.32s +65° 02' 20.6" P.A. 337.00 sep 374.7 mag 7.07,4.94 Sp F1-3V dist. 69.93 pc (228.11 l.y.)
 
 
Coord 2000 16564+6502 Discov num D    30 Comp AC Coord arcsec 2000 16 56 25.32 +65 02 20.6
Date first 1877 Date last 2003 Obs 6
Pa first 333 Pa last 336.7 P.A. Now (θ) 336.7°
Sep first 388.9 Sep last 374.695 Sep. Now (ρ) 374.695"
Mag pri 7.07 Mag sec 4.94 delta mag (ΔM) 2.13 Spectral class F1-3V (yellow-white)
Pri motion ra -034 Sec motion ra +238
Pri motion dec +033 Sec motion dec +051
Notes N (See Notes)
rPM=1.12
This double is not physical.
 
 
16564+6502 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 Dra 17285 16 56 25 +65 02 21 STF 2118 AB 2018 288 65 0.9 7.07 7.30 0.23 Y
Show 17285 16 56 25 +65 02 21 D 30 AC 2003 6 337 374.7 7.07 4.94 2.13 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV8081 Dra Constellation Draco SAO 17285 HIP 82898
Tycho2 4197-01771-1 Gaia DR2 1635371027735576064 HD 153697 HR 6319
GC 22881 ADS 10279 BD BD+65 1159 Flamsteed 20 Draconis
Flamsteed name 20 Dra Distance 69.93 Distance ly 228.11
 
 
WDS 16564+6502 D 30 AC : NOTES
 
 
discov_num notes refcode
STF2118 20 Dra. A premature orbit has been computed.
RV not variable. Some observations belonging to the neighboring SB
19 Dra have been published under 20 Dra.
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
AB: H 1 19. MEv2010
AB: Additional notes may be found in Burnham (1894). Bu_1894
AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 2.18 +/- 1.20, 2.50, and 1.45 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Bu_1894 Ma j Burnham, S.W. 1894PLicO...2....3B
Bu_1894 Pub. Lick Obs. 2, 3, 1894 (includes most data from Bu_1893a) 1893AN....131..329B
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
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 D Dembowski, H.
172 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
16564+6502 D 30 AC 2000 5 337 375.4 7.07 4.94 D 165625.32+650220.6
16564+6502 D 30 AC 2003 6 337 374.7 7.07 4.94 N D 165625.32+650220.6

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

 
 
WDS 16564+6502 D 30 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 16564+6502 D 30 AC : MEASURES
 
 
No records found.

 
 
WDS 16564+6502 : VIRTUAL EYEPIECE
 
 

16564+6502 STF2118A mag 7.07 Sp F2IV 16564+6502 STF2118B sep 0.5 P.A. 41.50 mag 7.3 16564+6502 D 30C sep 349.8 P.A. 349.70 mag 4.94 Sp 3V 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 16564+6502 : ALADIN DSS IMAGE @ 16h 56m 25.32s +65° 02' 20.6"
 
 
 
 
WDS 16564+6502 D 30 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

16564+6502 D 30AC distance=0' 16593+6513 STF2124 distance=22' 17023+6436 TOI1487 distance=46' 16472+6454 MLR 61 distance=61' 17054+6440 CVR1691 distance=62' 17062+6438 GIC 146 distance=68' 17073+6440 ALP 19 distance=74' 16575+6349 UC 3263 distance=74' 17075+6437 KPP3312CD distance=75' 17057+6552 SKF2609 distance=76' 16487+6359 LDS2399 distance=81' 17088+6543 STA 1 (Aldhibah) distance=88' 16552+6332 STF2116 distance=91' 16452+6406 TDT 68 distance=92' 17031+6334 CVR1689 distance=99' 16438+6357 LDS2397 distance=104' 17050+6331 GRV1131 distance=111' 16435+6345 LDS2396 distance=115' 17112+6352 ES 1908 distance=119' 16520+6658 LDS2401 distance=119' 17055+6316 STI 815 distance=122' 16448+6647 AG 206 distance=127' 16515+6712 TDT 118 distance=134' 17105+6322 HO 558 distance=136' 16425+6322 LDS2395 distance=137' 17115+6646 SKF2664 distance=139' 16580+6238 GRV1128 distance=145' 16366+6354 LDS2394AB distance=146' 16366+6354 JNN 108Aa,Ab distance=146' 17151+6639 MLR 186 distance=151' 16499+6728 KPP3310 distance=151' 16563+6742 LDS2404 distance=160' 16366+6651 TDT 2 distance=163' 16521+6746 MLR 185 distance=167' 17074+6229 HU 918 distance=171' 17161+6306 CBL 514 distance=174' 16519+6755 HEI 386 distance=175' 16488+6752 MLR 183 distance=177' 16545+6801 TDT 136 distance=180' 17154+6252 LDS1441 distance=180' 16576+6201 SLN 35 distance=182' 17010+6807 MLR 199AB distance=185' 17010+6807 WSI 35AD distance=185' 17010+6807 MLR 199BC distance=185' 16397+6738 UC 3201 distance=186' 16491+6203 STI 807AB distance=186' 16491+6203 FYM 410AC distance=186' 16487+6804 LDS2400 distance=188' 17145+6234 LDS1439 distance=189' 16588+6151 LDS2405 distance=193' 17086+6205 DAM 892 distance=195' 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 16564+6502 STF2118 AB 65 0.9
Show 16564+6502 D 30 AC 337 374.7
Show 16593+6513 STF2124 87 14.7 22
Show 17023+6436 TOI1487 46 0.1 46
Show 16472+6454 MLR 61 304 1.5 61
Show 17054+6440 CVR1691 217 4.2 62
Show 17062+6438 GIC 146 95 455.1 68
Show 17073+6440 ALP 19 147 20.6 74
Show 16575+6349 UC 3263 181 13.7 74
Show 17075+6437 KPP3312 CD 287 0.9 75
Show 17057+6552 SKF2609 273 13.4 76
Show 16487+6359 LDS2399 346 17.6 81
Show Aldhibah 17088+6543 STA 1 33 0.1 88
Show 16552+6332 STF2116 3 19.1 91
Show 16452+6406 TDT 68 201 1.5 92
Show 17031+6334 CVR1689 85 3.1 99
Show 16438+6357 LDS2397 231 9.4 104
Show 17050+6331 GRV1131 120 25.1 111
Show 16435+6345 LDS2396 107 5.9 115
Show 17112+6352 ES 1908 143 5.9 119
Show 16520+6658 LDS2401 340 9.3 119
Show 17055+6316 STI 815 81 7.2 122
Show 16448+6647 AG 206 155 6.3 127
Show 16515+6712 TDT 118 223 0.5 134
Show 17105+6322 HO 558 209 8.2 136
Show 16425+6322 LDS2395 9 3.9 137
Show 17115+6646 SKF2664 29 2.3 139
Show 16580+6238 GRV1128 296 16.7 145
Show 16366+6354 LDS2394 AB 198 3.4 146
Show 16366+6354 JNN 108 Aa,Ab 102 0.2 146
Show 17151+6639 MLR 186 26 0.2 151
Show 16499+6728 KPP3310 136 1.8 151
Show 16563+6742 LDS2404 283 54.0 160
Show 16366+6651 TDT 2 79 0.6 163
Show 16521+6746 MLR 185 294 0.4 167
Show 17074+6229 HU 918 38 0.2 171
Show 17161+6306 CBL 514 11 31.3 174
Show 16519+6755 HEI 386 172 0.1 175
Show 16488+6752 MLR 183 27 0.7 177
Show 16545+6801 TDT 136 5 1.9 180
Show 17154+6252 LDS1441 298 194.0 180
Show 16576+6201 SLN 35 257 25.3 182
Show 17010+6807 MLR 199 AB 76 19.2 185
Show 17010+6807 WSI 35 AD 84 7.0 185
Show 17010+6807 MLR 199 BC 39 2.8 185
Show 16397+6738 UC 3201 150 15.9 186
Show 16491+6203 STI 807 AB 247 8.9 186
Show 16491+6203 FYM 410 AC 21 17.5 186
Show 16487+6804 LDS2400 16 11.8 188
Show 17145+6234 LDS1439 140 10.7 189
Show 16588+6151 LDS2405 234 2.4 193

 
 
WDS 16564+6502 : COMPONENTS
 
 
  A B
B pa=41.5°
sep=0.51"
 
C pa=349.7°
sep=349.75"
pa=349.6°
sep=349.44"
 
 
16564+6502 A
 
 
Name 20 Dra Coord arcsec 2000 165625.32+650220.6 Mag 7.07 Spectral class F2IV (yellow-white)
PmRA -33.00 PmDE 34.0 SAO 17285 HIP 82898
Tycho2 4197-01771-1 HD 153697 HR 6319 GC 22881
BD BD+65 1159 Flamsteed 20 Draconis Flamsteed name 20 Dra
Tycho2
Tycho2 4197-01771-1 Pflag P RAmdeg 254.10555784 DEmdeg 65.03917088
PmRA -32.8 PmDE 34.4 E RAmdeg 5 E DEmdeg 5
E pmRA 1.6 E pmDE 1.6 EpRAm 1991.54 EpDEm 1991.48
Num 6 Q RAmdeg 2.2 Q DEmdeg 0.4 Q pmRA 2.1
Q pmDE 0.4 BTmag 7.428 E BTmag 0.015 VTmag 7.071
E VTmag 0.011 Prox 11 TYC T HIP 82898
CCDM A RAdeg 254.10547139 DEdeg 65.03904611 EpRA 1990 1.67
EpDE 1990 1.61 E RAdeg 4.5 E DEdeg 4.6 Posflg D
Corr -0.1
SAO
SAO 17285 DelFlag RA1950 PmRA1950 -0.0076
DE1950 PmDE1950 0.031 Vmag 6.4 SpType F0
Double code Source 70 CatNum 22881 DM BD+65 1159
DMcomp BDsup HD 153697 M HD 0
GC 22881 RA1950rad 4.43386365 DE1950rad 1.13647066 PmRA2000 -0.0065
PmDE2000 0.032
Hipparcos
Catalog H HIP 82898 Proxy H RAhms 16 56 25.32
DEdms +65 02 20.6 Vmag 6.4 VarFlag 1 R Vmag H
RAdeg 254.105 DEdeg 65.039 AstroRef A Plx 14.9
CCDM 16564+6502 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 69 Rho 1.123 HD 153697 BD BD+65 1159
CD CP Dm number +65 1159 VIred 0.45
SpType F1V R SpType Coord arcsec 2000 165625.32+650220.6
Hipparcos 2
HIP 82898 Sn 15 So 3 Nc 2
RArad 4.4349772932 DErad 1.1351454635 Plx 14.3 PmRA -35.23
PmDE 33.26 E RArad 0.49 E DErad 0.6 E Plx 0.55
E pmRA 0.41 E pmDE 0.69 Hpmag 6.4894 E Hpmag 0.0012
SHp 0.011 VA 2 BV 0.383 E BV 0.007
VI 0.45
CCDM
Ccdm 16564+6502 RComp Comp A Note1
Note2 Discov num DRAs 1.31 DDEs 21.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.9 Sp F0 PmNote *
PmRA -49 PmDE 40 Dm number +65 1159 Cat1 BD
Name2 +65 794 Cat2 AGK2/3 HD 153697 M HD
ADS BDS A10279 M ADS BDS N IDS IDS 16559N6511A
HIC 82898
 
 
16564+6502 B
 
 
Coord arcsec 2000 165625.37+650221.0 Mag 7.3 PmRA -33.00 PmDE 34.0
Tycho2 4197-01771-2 Calc delta mag 0.23 Calc coord yes
Tycho2
Tycho2 4197-01771-2 Pflag P RAmdeg 254.10555784 DEmdeg 65.03917088
PmRA -32.8 PmDE 34.4 E RAmdeg 5 E DEmdeg 5
E pmRA 1.6 E pmDE 1.6 EpRAm 1991.54 EpDEm 1991.48
Num 6 Q RAmdeg 2.2 Q DEmdeg 0.4 Q pmRA 2.1
Q pmDE 0.4 BTmag 7.709 E BTmag 0.016 VTmag 7.299
E VTmag 0.011 Prox 11 TYC T HIP 82898
CCDM B RAdeg 254.10615917 DEdeg 65.03916139 EpRA 1990 1.70
EpDE 1990 1.60 E RAdeg 4.8 E DEdeg 5.1 Posflg D
Corr -0.1
CCDM
Ccdm 16564+6502 RComp Comp B Note1 *
Note2 Discov num STF2118 DRAs DDEs
R dRAs Year 1832 Theta Rho
Obs 99 Vmag 7.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10279 M ADS BDS N IDS IDS 16559N6511B
HIC 82898
 
 
16564+6502 C
 
 
Coord arcsec 2000 165615.44+650804.7 Mag 4.94 Spectral class 3V PmRA 238.00
PmDE 51.0 Calc delta mag 2.13 Calc coord yes