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Doubles in session


Current system
17304+5218
BU 1090 AB
Bet Dra


Nearby doubles
11' : 17315+5222
BEM9023

18' : 17323+5223
FYM 652

25' : 17322+5236
ES 777

31' : 17278+5200
UC 3346

36' : 17269+5232
CVR1700

40' : 17271+5153
BLL 30

46' : 17353+5210
ES 635

59' : 17286+5122
HDS2468

67' : 17255+5130
HU 672

73' : 17251+5312
MLR 604

74' : 17382+5236
A 1880

80' : 17375+5132
CBL 70

83' : 17341+5333
UC 3369

87' : 17290+5052
STF2180

92' : 17318+5349
BEM 27

93' : 17353+5057
CVR1704

102' : 17198+5152
HEB 5

115' : 17321+5025
CRC 24

116' : 17178+5227
LEP 81

118' : 17374+5040
ES 2661AB

120' : 17220+5351
BU 1249AB

123' : 17344+5022
COU2113

129' : 17277+5424
UC 3345

130' : 17403+5047
COU2114

132' : 17388+5406
HDS2493

133' : 17433+5121
BEM9015



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

17304+5218 BU 1090 AB (Bet Dra)

 
 
17h 30m 25.98s +52° 18' 04.9" P.A. 17.00 sep 4.6 mag 2.79,14.00 Sp G2Ib-IIa dist. 116.55 pc (380.19 l.y.)
 
 
Coord 2000 17304+5218 Discov num BU 1090 Comp AB Coord arcsec 2000 17 30 25.98 +52 18 04.9
Date first 1889 Date last 2016 Obs 7
Pa first 13 Pa last 16.9 P.A. Now (θ) 16.9°
Sep first 4.0 Sep last 4.577 Sep. Now (ρ) 4.577"
Mag pri 2.79 Mag sec 14.00 delta mag (ΔM) 11.21 Spectral class G2Ib-IIa (yellow)
Pri motion ra -016 Sec motion ra
Pri motion dec +015 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
17304+5218 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Bet Dra 30429 17 30 26 +52 18 05 BU 1090 AB 2016 7 17 4.6 2.79 14.00 11.21 <===
Show 30429 17 30 26 +52 18 05 BU 1090 AC 2020 8 156 118.7 2.79 13.45 10.66
Show 17 30 31 +52 16 18 FYM 654 CD 2017 8 298 10.7 13.45 15.70 2.25
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Bet Dra Common name Rastaban Constellation Draco SAO 30429
HIP 85670 Tycho2 3521-01800-1 Gaia DR2 1415230383033121024 HD 159181
HR 6536 GC 23741 ADS 10611 BD BD+52 2065
Bayer Beta Draconis Bayer name Bet Dra Flamsteed 23 Draconis Flamsteed name 23 Dra
FK5 653 Distance 116.55 Distance ly 380.19 Bayer greek β Dra
Other names Rastaben, Alwaid, Asuia
Meaning snake's head
 
 
WDS 17304+5218 BU 1090 AB (Bet Dra) : NOTES
 
 
discov_num notes refcode
BU 1090 bet Dra = 23 dra = Rastaban
Mk III Limb-darkened diameter 3.225 +/- 0.053 mas. MkT2003
 
 
REFERENCES
 
 
refcode metd author reference
MkT2003 Km - Mozurkewich, D., Armstrong, J.T., Hindsley, R., Quirrenbach, A., Hummel, C.A., 2003AJ....126.2502M
MkT2003 +not Hutter, D., Johnston, K.J., Hajian, A., Elias, N.M., II, Buscher, D., & Simon, R.
MkT2003 AJ 126, 2502, 2003
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 FYM Fay, M.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17304+5218 BU 1090 AB 1934 6 12 4.4 2.79 14.00 G2Ib-IIa N D 173025.98+521804.9
17304+5218 BU 1090 AB 2016 7 17 4.6 2.79 14.00 G2Ib-IIa N 173025.98+521804.9

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

 
 
WDS 17304+5218 BU 1090 AB (Bet Dra) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17304+5218 BU 1090 AB (Bet Dra) : MEASURES
 
 
No records found.

 
 
WDS 17304+5218 (Bet Dra) : VIRTUAL EYEPIECE
 
 

17304+5218 BU 1090A mag 2.79 Sp G2Ib 17304+5218 BU 1090B sep 4.5 P.A. 10.50 mag 14 Sp IIa 17304+5218 FYM 654C sep 117.7 P.A. 155.60 mag 13.45 17304+5218 FYM 654D sep 110.8 P.A. 157.30 mag 15.7 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 17304+5218 (Bet Dra) : ALADIN DSS IMAGE @ 17h 30m 25.98s +52° 18' 04.9"
 
 
 
 
WDS 17304+5218 BU 1090 AB (Bet Dra) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17304+5218 BU 1090AB (Rastaban) distance=0' 17304+5218 FYM 654CD distance=2' 17315+5222 BEM9023 distance=11' 17323+5223 FYM 652 distance=18' 17322+5236 ES 777 distance=25' 17278+5200 UC 3346 distance=31' 17269+5232 CVR1700 distance=36' 17271+5153 BLL 30 distance=40' 17353+5210 ES 635 distance=46' 17286+5122 HDS2468 distance=59' 17255+5130 HU 672 distance=67' 17251+5312 MLR 604 distance=73' 17382+5236 A 1880 distance=74' 17375+5132 CBL 70 distance=80' 17341+5333 UC 3369 distance=83' 17290+5052 STF2180 distance=87' 17318+5349 BEM 27 distance=92' 17353+5057 CVR1704 distance=93' 17198+5152 HEB 5 distance=102' 17321+5025 CRC 24 distance=115' 17178+5227 LEP 81 distance=116' 17374+5040 ES 2661AB distance=118' 17374+5040 ES 2661BC distance=119' 17220+5351 BU 1249AB distance=120' 17220+5351 BU 1249AB,C distance=120' 17344+5022 COU2113 distance=123' 17277+5424 UC 3345 distance=129' 17403+5047 COU2114 distance=130' 17388+5406 HDS2493 distance=132' 17433+5121 BEM9015 distance=133' 17452+5157 B 9005CE distance=135' 17452+5157 STF2225CD distance=135' 17183+5338 SWI 3 distance=136' 17452+5157 STF2225AB distance=138' 17452+5157 STF2225AC distance=138' 17362+5425 ES 637 distance=138' 17185+5346 ES 776BC distance=139' 17170+5337 GRV1133 distance=139' 17185+5346 ES 776AB distance=139' 17374+5014 ES 973 distance=140' 17437+5336 KPP 399 distance=143' 17302+4955 BVD 252 distance=144' 17402+5411 ES 638 distance=145' 17237+5007 SHN 36 distance=145' 17138+5246 TDT 272 distance=155' 17458+5326 MLR 605BC distance=155' 17473+5218 CVR 863 distance=155' 17316+4943 FOX 202 distance=156' 17337+4942 HU 1282 distance=159' 17230+4953 BVD 249 distance=161' 17480+5224 MMA 38 distance=161' 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 Rastaban 17304+5218 BU 1090 AB 17 4.6
Show Rastaban 17304+5218 BU 1090 AC 156 118.7
Show 17304+5218 FYM 654 CD 298 10.7 2
Show 17315+5222 BEM9023 52 15.5 11
Show 17323+5223 FYM 652 353 5.2 18
Show 17322+5236 ES 777 349 6.1 25
Show 17278+5200 UC 3346 338 6.5 31
Show 17269+5232 CVR1700 262 4.7 36
Show 17271+5153 BLL 30 105 124.8 40
Show 17353+5210 ES 635 243 5.9 46
Show 17286+5122 HDS2468 94 0.3 59
Show 17255+5130 HU 672 58 4.2 67
Show 17251+5312 MLR 604 96 0.8 73
Show 17382+5236 A 1880 114 2.7 74
Show 17375+5132 CBL 70 93 14.7 80
Show 17341+5333 UC 3369 122 55.0 83
Show 17290+5052 STF2180 260 3.0 87
Show 17318+5349 BEM 27 205 13.0 92
Show 17353+5057 CVR1704 181 3.5 93
Show 17198+5152 HEB 5 -1 0.2 102
Show 17321+5025 CRC 24 23 12.5 115
Show 17178+5227 LEP 81 216 182.9 116
Show 17374+5040 ES 2661 AB 102 58.3 118
Show 17374+5040 ES 2661 BC 18 14.9 119
Show 17220+5351 BU 1249 AB 82 0.6 120
Show 17220+5351 BU 1249 AB,C 78 62.1 120
Show 17344+5022 COU2113 107 0.8 123
Show 17277+5424 UC 3345 199 26.1 129
Show 17403+5047 COU2114 4 0.4 130
Show 17388+5406 HDS2493 253 0.5 132
Show 17433+5121 BEM9015 265 13.0 133
Show 17452+5157 B 9005 CE 302 65.1 135
Show 17452+5157 STF2225 CD 296 8.7 135
Show 17183+5338 SWI 3 180 0.5 136
Show 17452+5157 STF2225 AB 339 5.5 138
Show 17452+5157 STF2225 AC 245 230.2 138
Show 17362+5425 ES 637 295 4.0 138
Show 17185+5346 ES 776 BC 313 2.2 139
Show 17170+5337 GRV1133 328 12.9 139
Show 17185+5346 ES 776 AB 153 28.5 139
Show 17374+5014 ES 973 242 8.1 140
Show 17437+5336 KPP 399 264 3.7 143
Show 17302+4955 BVD 252 284 21.7 144
Show 17402+5411 ES 638 185 2.5 145
Show 17237+5007 SHN 36 278 0.4 145
Show 17138+5246 TDT 272 81 0.7 155
Show 17458+5326 MLR 605 BC 45 10.8 155
Show 17473+5218 CVR 863 178 7.9 155
Show 17316+4943 FOX 202 237 55.4 156
Show 17337+4942 HU 1282 142 0.6 159
Show 17230+4953 BVD 249 108 14.2 161

 
 
WDS 17304+5218 : COMPONENTS
 
 
  A B C
B pa=10.5°
sep=4.45"
 
C pa=155.6°
sep=117.72"
pa=156.8°
sep=121.39"
 
D pa=157.3°
sep=110.80"
pa=158.5°
sep=114.55"
pa=311.0°
sep=7.66"
 
 
17304+5218 A
 
 
Name Bet Dra Common name Rastaban Meaning snake's head Other names Rastaben, Alwaid, Asuia
Coord arcsec 2000 173025.98+521804.9 Mag 2.79 Spectral class G2Ib (yellow) PmRA -16.00
PmDE 15.0 SAO 30429 HIP 85670 Tycho2 3521-01800-1
HD 159181 HR 6536 GC 23741 ADS 10611
BD BD+52 2065 Bayer Beta Draconis Bayer name Bet Dra Flamsteed 23 Draconis
Flamsteed name 23 Dra FK5 653
Tycho2
Tycho2 3521-01800-1 Pflag X RAmdeg DEmdeg
PmRA PmDE E RAmdeg E DEmdeg
E pmRA E pmDE EpRAm EpDEm
Num Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 3.980 E BTmag 0.014 VTmag 2.874
E VTmag 0.009 Prox 999 TYC T HIP 85670
CCDM RAdeg 262.60823167 DEdeg 52.30135972 EpRA 1990 1.58
EpDE 1990 1.66 E RAdeg 3.2 E DEdeg 3.2 Posflg
Corr 0.1
SAO
SAO 30429 DelFlag RA1950 PmRA1950 -0.0024
DE1950 PmDE1950 0.013 Vmag 3 SpType G0
Double code Source 74 CatNum 653 DM BD+52 2065
DMcomp BDsup HD 159181 M HD 0
GC 23741 RA1950rad 4.5784356 DE1950rad 0.91346483 PmRA2000 -0.0017
PmDE2000 0.014
Hipparcos
Catalog H HIP 85670 Proxy RAhms 17 30 25.98
DEdms +52 18 04.9 Vmag 2.79 VarFlag 1 R Vmag H
RAdeg 262.608 DEdeg 52.3014 AstroRef Plx 9.02
CCDM 17305+5218 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 159181 BD BD+52 2065
CD CP Dm number +52 2065 VIred 0.93
SpType G2II R SpType Coord arcsec 2000 173025.98+521804.9
Hipparcos 2
HIP 85670 Sn 5 So 0 Nc 1
RArad 4.5833783766 DErad 0.9128309154 Plx 8.58 PmRA -15.89
PmDE 12.28 E RArad 0.09 E DErad 0.09 E Plx 0.1
E pmRA 0.09 E pmDE 0.11 Hpmag 2.9466 E Hpmag 0.0005
SHp 0.005 VA 0 BV 0.954 E BV 0.007
VI 0.93
 
 
17304+5218 B
 
 
Coord arcsec 2000 173026.07+521809.3 Mag 14 Spectral class IIa Calc delta mag 11.21
Calc coord yes
 
 
17304+5218 C
 
 
Coord arcsec 2000 173031.28+521617.7 Coord calc 173031.28+521617.7 Mag 13.45 PmRA 4.00
PmDE -4.0 Calc delta mag 10.66
 
 
17304+5218 D
 
 
Coord arcsec 2000 173030.65+521622.7 Mag 15.7 Calc delta mag 12.91 Calc coord yes