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Doubles in session


Current system
17491+5047
LEP 86 AB


Nearby doubles
14' : 17499+5036
BEM9016

19' : 17500+5103
ES 779

23' : 17469+5054
DAM 267

30' : 17464+5102
DAM 266

36' : 17493+5011
ES 974

46' : 17514+5007
BEM 30

48' : 17459+5011
STF2229

52' : 17448+5016
NSN 696

57' : 17514+4956
UC 3428

60' : 17449+5003
TDT 485

65' : 17433+5121
BEM9015

65' : 17482+4944
COU1923

65' : 17551+5117
KPP2198

67' : 17509+4943
CBL 519

67' : 17484+4941
ES 1092

80' : 17452+5157
STF2225AB

83' : 17574+5111
ES 78AB

83' : 17566+5129
BU 633AB
Eltanin

84' : 17403+5047
COU2114

86' : 17578+5107
DAM 686

87' : 17545+4938
STF2251

93' : 17473+5218
CVR 863

98' : 17480+5224
MMA 38

99' : 17505+4907
COU1924

103' : 17494+4904
BEM9024AB

103' : 17598+5039
COU2390



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

17491+5047 LEP 86 AB

 
 
17h 49m 04.33s +50° 46' 50.0" P.A. 141.00 sep 209.1 mag 5.02,16.96 Sp A2V dist. 66.53 pc (217.02 l.y.)
 
 
Coord 2000 17491+5047 Discov num LEP  86 Comp AB Coord arcsec 2000 17 49 04.33 +50 46 50.0
Date first 2000 Date last 2000 Obs 1
Pa first 141 Pa last 141.2 P.A. Now (θ) 141.2°
Sep first 209.1 Sep last 209.08 Sep. Now (ρ) 209.08"
Mag pri 5.02 Mag sec 16.96 delta mag (ΔM) 11.94 Spectral class A2V (white)
Pri motion ra -050 Sec motion ra -045
Pri motion dec +209 Sec motion dec +201
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.044 (< 0.3, Physical double)
This double is physical.
 
 
17491+5047 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 30 Dra 30591 17 49 04 +50 46 50 CHR 65 Aa,Ab 1985 1 112 0.1 5.02
Show 30591 17 49 04 +50 46 50 LEP 86 AB 2000 1 141 209.1 5.02 16.96 11.94 <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco SAO 30591 HIP 87212 Tycho2 3523-01685-1
HD 162579 HR 6656 GC 24221 BD BD+50 2468
Flamsteed 30 Draconis Flamsteed name 30 Dra FK5 3416 Distance 66.53
Distance ly 217.02
 
 
WDS 17491+5047 LEP 86 AB : NOTES
 
 
discov_num notes refcode
CHR 65 Aa,Ab: 30 Dra. Hipparcos Acceleration Double Solution.
This system, first announced by McAlister and recalled in a later McA1984b
McAlister paper after repeated attempts at confirmation, has been McA1993
restored. While perhaps still spurious, the subsequent confirmation or
suspected duplicity (by another technique) makes the discovery
measurement somewhat more probable.
 
 
REFERENCES
 
 
refcode metd author reference
McA1984b Sc j McAlister, H.A. & Hartkopf, W.I. ...................
McA1984b Catalog of Interferometric Measurements of Binary Stars, CHARA Contrib. #1, 1984
McA1984b (previously unpublished KPNO 2.1m and 3.8m data)
McA1993 Sc j McAlister, H.A., Mason, B.D., Hartkopf, W.I., & Shara, M.M. 1993AJ....106.1639M
McA1993 +orb AJ 106, 1639, 1993
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
3 LEP Lepine, S., Wallace, D., Shara, M., Moffat, A., & Niemela, V.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17491+5047 LEP 86 AB 2000 1 141 209.1 5.02 16.96 VD 174904.33+504650.0

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

 
 
WDS 17491+5047 LEP 86 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17491+5047 LEP 86 AB : MEASURES
 
 
No records found.

 
 
WDS 17491+5047 : VIRTUAL EYEPIECE
 
 

17491+5047 LEP 86A mag 5.02 Sp A2V 17491+5047 CHR 65Ab sep 0.1 P.A. 122.80 17491+5047 LEP 86B sep 182.8 P.A. 153.10 mag 16.96 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 17491+5047 : ALADIN DSS IMAGE @ 17h 49m 04.33s +50° 46' 50.0"
 
 
 
 
WDS 17491+5047 LEP 86 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17491+5047 LEP 86AB distance=0' 17499+5036 BEM9016 distance=14' 17500+5103 ES 779 distance=19' 17469+5054 DAM 267 distance=23' 17464+5102 DAM 266 distance=30' 17493+5011 ES 974 distance=36' 17514+5007 BEM 30 distance=46' 17459+5011 STF2229 distance=48' 17448+5016 NSN 696 distance=52' 17514+4956 UC 3428 distance=57' 17449+5003 TDT 485 distance=60' 17433+5121 BEM9015 distance=65' 17482+4944 COU1923 distance=65' 17551+5117 KPP2198 distance=65' 17509+4943 CBL 519 distance=67' 17484+4941 ES 1092 distance=67' 17452+5157 STF2225AB distance=80' 17452+5157 STF2225AC distance=80' 17452+5157 B 9005CE distance=80' 17452+5157 STF2225CD distance=80' 17574+5111 ES 78AB distance=83' 17574+5111 FOX9011AC distance=83' 17566+5129 BU 633AB (Eltanin) distance=83' 17566+5129 BU 633AC (Eltanin) distance=83' 17566+5129 BU 633AD (Eltanin) distance=83' 17566+5129 BU 633AE (Eltanin) distance=83' 17566+5129 BU 633AF (Eltanin) distance=83' 17566+5129 BU 633AG (Eltanin) distance=83' 17403+5047 COU2114 distance=84' 17578+5107 DAM 686 distance=86' 17545+4938 STF2251 distance=87' 17473+5218 CVR 863 distance=93' 17480+5224 MMA 38 distance=98' 17505+4907 COU1924 distance=99' 17494+4904 BEM9024AB distance=103' 17494+4904 DAM 261AC distance=103' 17598+5039 COU2390 distance=103' 18001+5045 KPP1193 distance=105' 17374+5040 ES 2661BC distance=110' 17415+4924 WIS 321 distance=111' 17374+5040 ES 2661AB distance=111' 17449+4903 KPP4058 distance=112' 17374+5014 ES 973 distance=116' 17375+5132 CBL 70 distance=119' 17581+5213 STF2261AB distance=121' 17581+5213 WAL 87AC distance=121' 18009+4954 LDS4770 distance=125' 17422+4900 STF2210 distance=126' 17524+4845 TDT 549 distance=127' 17387+4923 BEM 28 distance=130' 17353+5057 CVR1704 distance=131' 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 17491+5047 CHR 65 Aa,Ab 112 0.1
Show 17491+5047 LEP 86 AB 141 209.1
Show 17499+5036 BEM9016 17 4.1 14
Show 17500+5103 ES 779 342 9.4 19
Show 17469+5054 DAM 267 322 3.5 23
Show 17464+5102 DAM 266 176 5.6 30
Show 17493+5011 ES 974 348 2.6 36
Show 17514+5007 BEM 30 114 14.8 46
Show 17459+5011 STF2229 340 6.7 48
Show 17448+5016 NSN 696 179 1.1 52
Show 17514+4956 UC 3428 146 20.6 57
Show 17449+5003 TDT 485 328 0.8 60
Show 17433+5121 BEM9015 265 13.0 65
Show 17482+4944 COU1923 282 0.5 65
Show 17551+5117 KPP2198 35 18.2 65
Show 17509+4943 CBL 519 191 14.0 67
Show 17484+4941 ES 1092 21 3.8 67
Show 17452+5157 STF2225 AB 339 5.5 80
Show 17452+5157 STF2225 AC 245 230.2 80
Show 17452+5157 B 9005 CE 302 65.1 80
Show 17452+5157 STF2225 CD 296 8.7 80
Show 17574+5111 ES 78 AB 130 8.1 83
Show 17574+5111 FOX9011 AC 194 31.6 83
Show Eltanin 17566+5129 BU 633 AB 152 21.1 83
Show Eltanin 17566+5129 BU 633 AC 234 41.2 83
Show Eltanin 17566+5129 BU 633 AD 11 59.5 83
Show Eltanin 17566+5129 BU 633 AE 235 96.0 83
Show Eltanin 17566+5129 BU 633 AF 114 126.0 83
Show Eltanin 17566+5129 BU 633 AG 28 143.6 83
Show 17403+5047 COU2114 4 0.4 84
Show 17578+5107 DAM 686 191 6.7 86
Show 17545+4938 STF2251 20 16.1 87
Show 17473+5218 CVR 863 178 7.9 93
Show 17480+5224 MMA 38 180 35.7 98
Show 17505+4907 COU1924 67 0.6 99
Show 17494+4904 BEM9024 AB 279 18.5 103
Show 17494+4904 DAM 261 AC 33 4.8 103
Show 17598+5039 COU2390 179 0.1 103
Show 18001+5045 KPP1193 108 9.3 105
Show 17374+5040 ES 2661 BC 18 14.9 110
Show 17415+4924 WIS 321 346 999.9 111
Show 17374+5040 ES 2661 AB 102 58.3 111
Show 17449+4903 KPP4058 128 3.6 112
Show 17374+5014 ES 973 242 8.1 116
Show 17375+5132 CBL 70 93 14.7 119
Show 17581+5213 STF2261 AB 261 9.6 121
Show 17581+5213 WAL 87 AC 57 64.4 121
Show 18009+4954 LDS4770 213 1.5 125
Show 17422+4900 STF2210 122 3.3 126
Show 17524+4845 TDT 549 300 1.0 127
Show 17387+4923 BEM 28 359 3.2 130

 
 
WDS 17491+5047 : COMPONENTS
 
 
  A Ab
Ab pa=122.8°
sep=0.08"
 
B pa=153.1°
sep=182.81"
pa=153.1°
sep=182.74"
 
 
17491+5047 A
 
 
Coord arcsec 2000 174904.33+504650.0 Mag 5.02 Spectral class A2V (white) PmRA -50.00
PmDE 209.0 SAO 30591 HIP 87212 Tycho2 3523-01685-1
HD 162579 HR 6656 GC 24221 BD BD+50 2468
Flamsteed 30 Draconis Flamsteed name 30 Dra FK5 3416
Tycho2
Tycho2 3523-01685-1 Pflag RAmdeg 267.26786456 DEmdeg 50.78105385
PmRA -50.4 PmDE 208.8 E RAmdeg 3 E DEmdeg 3
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.45 EpDEm 1991.45
Num 16 Q RAmdeg 1.0 Q DEmdeg 1.7 Q pmRA 1.0
Q pmDE 1.6 BTmag 5.064 E BTmag 0.014 VTmag 5.022
E VTmag 0.009 Prox 999 TYC T HIP 87212
CCDM RAdeg 267.26805028 DEdeg 50.78056556 EpRA 1990 1.61
EpDE 1990 1.58 E RAdeg 3.4 E DEdeg 3.3 Posflg
Corr 0.0
SAO
SAO 30591 DelFlag RA1950 PmRA1950 -0.0058
DE1950 PmDE1950 0.209 Vmag 5.2 SpType A2
Double code Source 70 CatNum 24221 DM BD+50 2468
DMcomp BDsup HD 162579 M HD 0
GC 24221 RA1950rad 4.65948449 DE1950rad 0.8864895 PmRA2000 -0.0053
PmDE2000 0.21
Hipparcos
Catalog H HIP 87212 Proxy RAhms 17 49 04.33
DEdms +50 46 50.0 Vmag 5.02 VarFlag R Vmag H
RAdeg 267.268 DEdeg 50.7805 AstroRef Plx 15.03
CCDM N CCDM Nsys Ncomp 1
MultFlag G Source Qual M HIP
Theta Rho HD 162579 BD BD+50 2468
CD CP Dm number +50 2468 VIred 0.04
SpType A2V R SpType Coord arcsec 2000 174904.33+504650.0
Hipparcos 2
HIP 87212 Sn 1 So 1 Nc 1
RArad 4.6647075951 DErad 0.8862877002 Plx 15.03 PmRA -54.05
PmDE 217.38 E RArad 0.38 E DErad 0.41 E Plx 0.43
E pmRA 0.44 E pmDE 0.51 Hpmag 5.0431 E Hpmag 0.0005
SHp 0.005 VA 0 BV 0.043 E BV 0.004
VI 0.06
CCDM
Ccdm 17491+5047 RComp Comp A Note1
Note2 Discov num DRAs -1.71 DDEs -8.1
R dRAs 81 Year Theta Rho
Obs 2 Vmag 5.0 Sp A2 PmNote @
PmRA -48 PmDE 211 Dm number +50 2468 Cat1 BD
Name2 +50 1253 Cat2 AGK2/3 HD 162579 M HD
ADS BDS M ADS BDS N N IDS W IDS 17491+5047A
HIC 87212
 
 
17491+5047 Ab
 
 
Coord arcsec 2000 174904.34+504650.0 Calc delta mag 5.02 Calc coord yes
 
 
17491+5047 B
 
 
Coord arcsec 2000 174913.06+504407.1 Mag 16.96 PmRA -45.00 PmDE 201.0
Calc delta mag 11.94 Calc coord yes
CCDM
Ccdm 17491+5047 RComp Comp B Note1
Note2 Discov num CHR 65 DRAs DDEs
R dRAs Year 1985 Theta 112 Rho 0.1
Obs 3 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS W IDS 17491+5047B
HIC 87212