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Doubles in session


Current system
17364+6820
CHR 62 Aa,Ab


Nearby doubles
16' : 17389+6813
TDT 448

23' : 17370+6845
FOX 203

25' : 17323+6817
LDS2734

25' : 17326+6834
DAM1455AB

31' : 17320+6808
BU 1458

40' : 17376+6743
AZC 177

45' : 17415+6747
CVR 862

55' : 17359+6729
TDT 426

56' : 17278+6757
TDT 366

70' : 17263+6746
BU 1201

75' : 17334+6711
AZC 176

76' : 17371+6707
STF2207

88' : 17328+6659
HDS2476

89' : 17413+6948
HZG 11

93' : 17211+6751
MLR 187

98' : 17296+6953
MLR 188

98' : 17295+6953
UR 11

102' : 17190+6853
MET 81AB

106' : 17420+7005
CRB 200

111' : 17286+6642
LDS2733

113' : 17198+6723
CBL 515

115' : 17393+7020
A 1372

118' : 17552+6729
HU 925

118' : 17176+6920
YSC 157

124' : 17528+6700
BRD 3AB

125' : 17449+6628
HU 924



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

17364+6820 CHR 62 Aa,Ab

 
 
17h 36m 42.10s +68° 22' 59.0" P.A. 352.00 sep 0.3 mag 9.15, Sp F5V dist. 4.53 pc (14.78 l.y.)
 
 
Coord 2000 17364+6820 Discov num CHR  62 Comp Aa,Ab Coord arcsec 2000 17 36 42.10 +68 22 59.0
Date first 1984 Date last 1993 Obs 2
Pa first 1 Pa last 352.3 P.A. Now (θ) 352.3°
Sep first 0.3 Sep last 0.282 Sep. Now (ρ) 0.282"
Mag pri 9.15 Mag sec delta mag (ΔM) Spectral class F5V (yellow-white)
Pri motion ra +008 Sec motion ra
Pri motion dec +081 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
17364+6820 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 17570 17 36 42 +68 22 59 CHR 62 Aa,Ab 1993 2 352 0.3 9.15 Y <===
Show HD 160861 17570 17 36 42 +68 22 59 ENG 61 AB 2013 16 209 177.7 8.09 9.33 1.24
Show 17570 17 36 42 +68 22 59 STU 10 AC 2015 12 95 177.3 8.09 11.38 3.29
Show 17 36 26 +68 20 21 STU 10 BC 1999 6 62 301.6 9.33 11.38 2.05
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco SAO 17570 HIP 86162 Tycho2 4428-01849-1
Gaia DR2 1637692474737869440 HD 160861 GL Gl 687 BD BD+68 946
Distance 4.53 Distance ly 14.78
 
 
ORBITAL ELEMENTS
 
 
Period (P)24.5y Periastron (T)1961.9y Semi-major axis (a)0.102a
Eccentricity (e)0.9 Inclination (i)96° Longitude of periastron (ω)260°
Node (Ω)8.8° Notesn ReferenceLip1967
Equinox Last observation1966 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000 330.7 0.032
2001 322.8 0.027
2002 311.6 0.023
2003 295.7 0.019
2004 275.0 0.018
2005 253.0 0.018
2006 234.6 0.021
2007 221.1 0.025
2008 211.3 0.029
2009 203.7 0.032
2010 196.8 0.031
2011 14.8 0.009
2012 4.2 0.046
2013 1.6 0.057
2014 359.7 0.062
2015 357.9 0.064
2016 356.3 0.064
2017 354.5 0.063
2018 352.7 0.061
2019 350.7 0.057
2020 348.5 0.054
2021 345.9 0.049
2022 342.7 0.045
2023 338.8 0.040
2024 333.8 0.035
2025 327.1 0.030
2026 317.7 0.025
2027 304.3 0.021
2028 285.8 0.018
2029 263.8 0.018
2030 243.2 0.019


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


 
  


wds17364%2B6820r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 17364+6820 CHR 62 Aa,Ab : NOTES
 
 
discov_num notes refcode
CHR 62 Aa,Ab is also the astrometric binary Ci 18,2354 = GJ 687
Lippincott orbit rejected from Fourth Orbit Catalog Lip1967
("object still suspected to be binary by some, but no even Wor1983
approximately reliable or complete elements yet available")
ENG 61 AB: B is BD+68@947. Proper motion of B = -868,-1270 (UCAC2)
Proper motion of A = +013+084, C -008+005
AB: Optical pair, based on study of relative motion of the
components using the method of apparent motion parameters. Kiy2008
 
 
REFERENCES
 
 
refcode metd author reference
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
Lip1967 orb - Lippincott, S.L. 1967AJ.....72.1349L
Lip1967 AJ 72, 1349, 1967
Wor1983 - Worley, C.E. & Heintz, W.D. 1983PUSNO..24g...1W
Wor1983 Pub. USNO 24, Pt. 7, 1983 (Fourth Orbit Catalog)
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
3 ENG changed from EN to ENG and that for Engelhardt from ENG to ENH. This has led to
34 STU Sturdy, K.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17364+6820 CHR 62 Aa,Ab 1993 2 352 0.3 9.15   M3.5V NO 173642.10+682259.0

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

 
 
WDS 17364+6820 CHR 62 Aa,Ab : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17364+6820 CHR 62 Aa,Ab : MEASURES
 
 
No records found.

 
 
WDS 17364+6820 : VIRTUAL EYEPIECE
 
 

17364+6820 ENG 61A mag 8.09 Sp F5V 17364+6820 CHR 62Ab sep 0.3 P.A. 357.10 17364+6820 STU 10B sep 181.7 P.A. 209.50 mag 9.33 Sp M3.5V 17364+6820 STU 10C sep 67.1 P.A. 104.10 mag 11.38 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 17364+6820 : ALADIN DSS IMAGE @ 17h 36m 42.10s +68° 22' 59.0"
 
 
 
 
WDS 17364+6820 CHR 62 Aa,Ab : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17364+6820 CHR 62Aa,Ab distance=0' 17364+6820 STU 10BC distance=4' 17389+6813 TDT 448 distance=16' 17370+6845 FOX 203 distance=23' 17323+6817 LDS2734 distance=25' 17326+6834 LDS9182AB,C distance=25' 17326+6834 DAM1455AB distance=25' 17320+6808 BU 1458 distance=31' 17376+6743 AZC 177 distance=40' 17415+6747 CVR 862 distance=45' 17359+6729 TDT 426 distance=55' 17278+6757 TDT 366 distance=56' 17263+6746 BU 1201 distance=70' 17334+6711 AZC 176 distance=75' 17371+6707 STF2207 distance=76' 17328+6659 HDS2476 distance=88' 17413+6948 HZG 11 distance=89' 17211+6751 MLR 187 distance=93' 17296+6953 MLR 188 distance=98' 17295+6953 UR 11 distance=98' 17190+6853 MET 81AB distance=102' 17190+6853 KPP4033AB,C distance=102' 17420+7005 CRB 200 distance=106' 17286+6642 LDS2733 distance=111' 17198+6723 CBL 515 distance=113' 17393+7020 A 1372 distance=115' 17552+6729 HU 925 distance=118' 17176+6920 YSC 157 distance=118' 17528+6700 BRD 3BC distance=123' 17528+6700 BRD 3AB distance=124' 17528+6700 BRD 3AC distance=124' 17528+6700 ABH 91AD distance=124' 17528+6700 ABH 91AE distance=124' 17449+6628 HU 924 distance=125' 17179+6718 LDS2732 distance=125' 17535+7009 A 1373 distance=139' 17299+7050 TDT 381 distance=151' 17394+7059 SKF2736 distance=157' 17377+7102 HEI 863AB distance=159' 17377+7102 HEI 863AC distance=159' 17373+7105 LDS1872 distance=161' 17464+7059 UC 3402 distance=165' 17279+7112 A 1154 distance=176' 17211+7059 LDS1864 distance=177' 17386+7120 WOR 7 distance=178' 17245+7111 LDS1866 distance=179' 17184+6553 MLR 65 distance=184' 17527+6540 SLW1215 distance=189' 17460+6519 LDS2739 distance=193' 17390+6509 CVR 204 distance=195' 17391+6509 LDS2737 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 17364+6820 CHR 62 Aa,Ab 352 0.3
Show 17364+6820 ENG 61 AB 209 177.7
Show 17364+6820 STU 10 AC 95 177.3
Show 17364+6820 STU 10 BC 62 301.6 4
Show 17389+6813 TDT 448 181 0.4 16
Show 17370+6845 FOX 203 249 77.2 23
Show 17323+6817 LDS2734 216 10.6 25
Show 17326+6834 LDS9182 AB,C 193 22.6 25
Show 17326+6834 DAM1455 AB 214 1.0 25
Show 17320+6808 BU 1458 342 154.9 31
Show 17376+6743 AZC 177 193 32.0 40
Show 17415+6747 CVR 862 152 19.3 45
Show 17359+6729 TDT 426 171 2.0 55
Show 17278+6757 TDT 366 6 4.3 56
Show 17263+6746 BU 1201 341 0.1 70
Show 17334+6711 AZC 176 29 28.2 75
Show 17371+6707 STF2207 111 0.4 76
Show 17328+6659 HDS2476 212 0.4 88
Show 17413+6948 HZG 11 287 3.1 89
Show 17211+6751 MLR 187 273 2.3 93
Show 17296+6953 MLR 188 197 1.8 98
Show 17295+6953 UR 11 3 5.5 98
Show 17190+6853 MET 81 AB 119 0.0 102
Show 17190+6853 KPP4033 AB,C 122 16.5 102
Show 17420+7005 CRB 200 198 14.6 106
Show 17286+6642 LDS2733 334 6.0 111
Show 17198+6723 CBL 515 219 23.0 113
Show 17393+7020 A 1372 83 1.1 115
Show 17552+6729 HU 925 327 1.9 118
Show 17176+6920 YSC 157 177 0.3 118
Show 17528+6700 BRD 3 BC 152 10.6 123
Show 17528+6700 BRD 3 AB 325 20.0 124
Show 17528+6700 BRD 3 AC 317 9.5 124
Show 17528+6700 ABH 91 AD 239 75.8 124
Show 17528+6700 ABH 91 AE 233 79.2 124
Show 17449+6628 HU 924 217 0.3 125
Show 17179+6718 LDS2732 243 3.2 125
Show 17535+7009 A 1373 334 2.8 139
Show 17299+7050 TDT 381 320 0.8 151
Show 17394+7059 SKF2736 260 14.0 157
Show 17377+7102 HEI 863 AB 9 4.1 159
Show 17377+7102 HEI 863 AC 84 4.9 159
Show 17373+7105 LDS1872 71 3.9 161
Show 17464+7059 UC 3402 2 10.2 165
Show 17279+7112 A 1154 248 0.9 176
Show 17211+7059 LDS1864 33 12.5 177
Show 17386+7120 WOR 7 228 8.5 178
Show 17245+7111 LDS1866 343 5.1 179
Show 17184+6553 MLR 65 260 0.4 184
Show 17527+6540 SLW1215 256 9.5 189
Show 17460+6519 LDS2739 26 11.8 193

 
 
WDS 17364+6820 : COMPONENTS
 
 
  A Ab B
Ab pa=357.1°
sep=0.28"
 
B pa=209.5°
sep=181.70"
pa=209.5°
sep=181.94"
 
C pa=104.1°
sep=67.07"
pa=104.4°
sep=67.16"
pa=47.5°
sep=209.78"
 
 
17364+6820 A
 
 
Name HD 160861 Coord arcsec 2000 173642.10+682259.0 Mag 8.09 Spectral class F5V (yellow-white)
PmRA 0.00 PmDE 8.0 SAO 17570 HIP 86187
Tycho2 4428-01849-1 HD 160861 BD BD+68 947
Tycho2
Tycho2 4428-01849-1 Pflag RAmdeg 264.17545430 DEmdeg 68.38305902
PmRA 11.8 PmDE 81.1 E RAmdeg 6 E DEmdeg 6
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.53 EpDEm 1991.44
Num 9 Q RAmdeg 1.3 Q DEmdeg 0.7 Q pmRA 1.4
Q pmDE 0.7 BTmag 8.559 E BTmag 0.018 VTmag 8.093
E VTmag 0.013 Prox 999 TYC T HIP 86187
CCDM RAdeg 264.17538250 DEdeg 68.38287472 EpRA 1990 1.91
EpDE 1990 1.82 E RAdeg 6.3 E DEdeg 6.4 Posflg
Corr -0.1
SAO
SAO 17570 DelFlag RA1950 PmRA1950 -0.0003
DE1950 PmDE1950 0.066 Vmag 7.9 SpType F5
Double code Source 2 CatNum 734 DM BD+68 947
DMcomp BDsup HD 160861 M HD 0
GC RA1950rad 4.61174339 DE1950rad 1.19397758 PmRA2000 0.0008
PmDE2000 0.066
Hipparcos
Catalog H HIP 86187 Proxy RAhms 17 36 42.09
DEdms +68 22 58.3 Vmag 8.05 VarFlag R Vmag H
RAdeg 264.175 DEdeg 68.3829 AstroRef Plx 11.3
CCDM 17366+6822 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 160861 BD BD+68 947
CD CP Dm number +68 947 VIred 0.59
SpType F5 R SpType Coord arcsec 2000 173642.09+682258.3
Hipparcos 2
HIP 86187 Sn 5 So 0 Nc 1
RArad 4.6107300273 DErad 1.1935060613 Plx 11.26 PmRA 5.22
PmDE 84.14 E RArad 0.49 E DErad 0.59 E Plx 0.53
E pmRA 0.61 E pmDE 0.78 Hpmag 8.147 E Hpmag 0.0015
SHp 0.013 VA 0 BV 0.441 E BV 0.016
VI 0.51
 
 
17364+6820 Ab
 
 
Coord arcsec 2000 173642.10+682259.3 Calc delta mag 9.15 Calc coord yes
 
 
17364+6820 B
 
 
Coord arcsec 2000 173625.91+682020.9 Coord calc 173625.91+682020.9 Mag 9.33 Spectral class M3.5V (red)
PmRA -32.00 PmDE -127.0 HIP 86162 Tycho2 4428-01943-1
BD BD+68 946 Calc delta mag 0.18
Tycho2
Tycho2 4428-01943-1 Pflag RAmdeg 264.10794483 DEmdeg 68.33913963
PmRA -320.5 PmDE -1270.7 E RAmdeg 16 E DEmdeg 17
E pmRA 1.3 E pmDE 1.4 EpRAm 1988.79 EpDEm 1988.51
Num 10 Q RAmdeg 1.4 Q DEmdeg 0.9 Q pmRA 1.5
Q pmDE 0.9 BTmag 11.077 E BTmag 0.058 VTmag 9.327
E VTmag 0.022 Prox 999 TYC T HIP 86162
CCDM RAdeg 264.10988167 DEdeg 68.34204056 EpRA 1990 1.92
EpDE 1990 1.77 E RAdeg 17.5 E DEdeg 18.7 Posflg
Corr -0.1
Hipparcos
Catalog H HIP 86162 Proxy RAhms 17 36 26.41
DEdms +68 20 32.0 Vmag 9.15 VarFlag R Vmag G
RAdeg 264.11 DEdeg 68.3422 AstroRef Plx 220.85
CCDM 17366+6822 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD BD BD+68 946
CD CP Dm number +68 946 VIred 2.11
SpType M3.5Vvar R SpType Coord arcsec 2000 173626.41+682032.0
Hipparcos 2
HIP 86162 Sn 5 So 0 Nc 1
RArad 4.6095895489 DErad 1.1927968807 Plx 220.84 PmRA -320.57
PmDE -1269.33 E RArad 0.92 E DErad 1.05 E Plx 0.94
E pmRA 1.14 E pmDE 1.39 Hpmag 9.1467 E Hpmag 0.0029
SHp 0.017 VA 0 BV 1.505 E BV 0.013
VI 2.11
 
 
17364+6820 C
 
 
Coord arcsec 2000 173653.87+682242.6 Mag 11.38 PmRA -3.00 PmDE 5.0
Calc delta mag 2.23 Calc coord yes