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Doubles in session


Current system
18573+6224
STF 2440 AB
HD 176668


Nearby doubles
14' : 18576+6210
TDT1147

25' : 18580+6159
ES 1843

31' : 18558+6253
TDT1131

38' : 19018+6204
UC 3767

39' : 18517+6222
ES 1841

41' : 18596+6301
HU 939

41' : 18565+6144
ES 1842

45' : 18550+6143
ES 2669

47' : 18524+6256
LDS2753

53' : 19017+6308
LDS2426

54' : 19045+6245
TDT1211

56' : 18533+6312
TDT1113

56' : 19045+6248
MLR 8

56' : 18494+6234
HJ 2846

65' : 19008+6125
LDS2755

67' : 18518+6318
UC 3699

69' : 19070+6210
STI 875

72' : 19071+6205
UC 3802

72' : 18472+6215
LDS2749

76' : 18473+6254
ES 127

77' : 19074+6156
UC 3806

86' : 18593+6347
ES 1844AB

86' : 19069+6320
LDS2759

89' : 18448+6241
CFN 16

91' : 19033+6104
ES 1796

95' : 19066+6116
ES 191



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

18573+6224 STF 2440 AB (HD 176668)

 
 
18h 57m 17.34s +62° 23' 48.7" P.A. 122.00 sep 17.4 mag 6.59,9.61 Sp G8III dist. 95.42 pc (311.26 l.y.)
 
 
Coord 2000 18573+6224 Discov num STF2440 Comp AB Coord arcsec 2000 18 57 17.34 +62 23 48.7
Date first 1831 Date last 2015 Obs 33
Pa first 126 Pa last 122.2 P.A. Now (θ) 122.2°
Sep first 16.5 Sep last 17.362 Sep. Now (ρ) 17.362"
Mag pri 6.59 Mag sec 9.61 delta mag (ΔM) 3.02 Spectral class G8III (yellow)
Pri motion ra +006 Sec motion ra +008
Pri motion dec -041 Sec motion dec -042
Notes N (See Notes)
rPM=0.052 (< 0.3, Physical double)
This double is physical.
 
 
18573+6224 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 176668 18082 18 57 17 +62 23 49 STF 2440 AB 2015 33 122 17.4 6.59 9.61 3.02 <===
Show 18082 18 57 17 +62 23 49 STF 2440 AC 2015 9 60 161.0 6.59 10.92 4.33
Show 18082 18 57 17 +62 23 49 WAL 98 AD 2015 4 71 53.9 6.59 13.45 6.86
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 176668 Constellation Draco SAO 18082 HIP 93053
Tycho2 4220-01507-1 Gaia DR2 2252961417657939840 HD 176668 HR 7191
GC 26074 ADS 11901 BD BD+62 1669 Distance 95.42
Distance ly 311.26
 
 
WDS 18573+6224 STF 2440 AB (HD 176668) : NOTES
 
 
discov_num notes refcode
STF2440 Spectrum of A also called composite; G5IV+G8V.
 
 
DISCOVERER
 
 
discov author
STF (F. Struve DD - Appendix list #1)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
18573+6224 STF2440 AB 2006 30 122 17.5 6.59 9.61 G8III +62 1669 N D 185717.34+622348.7
18573+6224 STF2440 AB 2015 32 122 17.4 6.59 9.61 G8III +62 1669 N 185717.34+622348.7

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

 
 
WDS 18573+6224 STF 2440 AB (HD 176668) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18573+6224 STF 2440 AB (HD 176668) : MEASURES
 
 
No records found.

 
 
WDS 18573+6224 (HD 176668) : VIRTUAL EYEPIECE
 
 

18573+6224 STF2440A mag 6.59 Sp G8III 18573+6224 STF2440B sep 17.4 P.A. 122.20 mag 9.61 18573+6224 STF2440C sep 161.0 P.A. 59.80 mag 10.92 18573+6224 WAL 98D sep 53.9 P.A. 70.50 mag 13.45 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 18573+6224 (HD 176668) : ALADIN DSS IMAGE @ 18h 57m 17.34s +62° 23' 48.7"
 
 
 
 
WDS 18573+6224 STF 2440 AB (HD 176668) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18573+6224 STF2440AB distance=0' 18576+6210 TDT1147 distance=14' 18580+6159 ES 1843 distance=25' 18558+6253 TDT1131 distance=31' 19018+6204 UC 3767 distance=38' 18517+6222 ES 1841 distance=39' 18596+6301 HU 939 distance=41' 18565+6144 ES 1842 distance=41' 18550+6143 ES 2669 distance=45' 18524+6256 LDS2753 distance=47' 19017+6308 LDS2426 distance=53' 19045+6245 TDT1211 distance=54' 18533+6312 TDT1113 distance=56' 19045+6248 MLR 8 distance=56' 18494+6234 HJ 2846 distance=56' 19008+6125 LDS2755 distance=65' 18518+6318 UC 3699 distance=67' 19070+6210 STI 875 distance=69' 19071+6205 UC 3802 distance=72' 18472+6215 LDS2749 distance=72' 18473+6254 ES 127 distance=76' 19074+6156 UC 3806 distance=77' 18593+6347 ES 1844AB distance=86' 18593+6347 ES 1844AC distance=86' 19069+6320 LDS2759 distance=86' 18448+6241 CFN 16 distance=89' 19033+6104 ES 1796 distance=91' 19066+6116 ES 191 distance=95' 19110+6224 HU 943 distance=96' 18480+6113 LDS2750 distance=99' 18439+6303 KPP4117 distance=101' 18461+6121 MLR 7 distance=101' 19000+6403 LDS2425 distance=102' 18572+6406 KPP4130 distance=103' 19068+6106 LDS2758AB distance=104' 19033+6400 JOD 16AB distance=104' 19033+6400 JOD 16AB,C distance=104' 19044+6358 UC 3786 distance=106' 18411+6226 LDS2746 distance=114' 19135+6212 TOI1464 distance=114' 18462+6351 STI 861 distance=116' 18554+6420 MLR 59 distance=118' 19143+6230 MLR 10 distance=119' 18483+6044 LDS2751 distance=119' 18413+6311 ES 1839 distance=120' 19035+6416 ES 1913 distance=120' 19132+6312 AG 228 distance=120' 19017+6028 MLB 139AB distance=120' 19017+6028 MLB 139AC distance=120' 19148+6220 STI 883 distance=122' 18443+6103 STF2403 distance=123' 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 18573+6224 STF2440 AB 122 17.4 0
Show 18573+6224 STF2440 AC 60 161.0 0
Show 18573+6224 WAL 98 AD 71 53.9 0
Show 18576+6210 TDT1147 71 0.9 14
Show 18580+6159 ES 1843 168 4.9 25
Show 18558+6253 TDT1131 239 0.5 31
Show 19018+6204 UC 3767 258 22.3 38
Show 18517+6222 ES 1841 105 3.4 39
Show 18596+6301 HU 939 47 3.6 41
Show 18565+6144 ES 1842 266 7.7 41
Show 18550+6143 ES 2669 166 11.9 45
Show 18524+6256 LDS2753 292 3.6 47
Show 19017+6308 LDS2426 62 4.4 53
Show 19045+6245 TDT1211 32 0.8 54
Show 18533+6312 TDT1113 90 0.9 56
Show 19045+6248 MLR 8 16 0.6 56
Show 18494+6234 HJ 2846 239 14.6 56
Show 19008+6125 LDS2755 55 8.5 65
Show 18518+6318 UC 3699 176 45.4 67
Show 19070+6210 STI 875 13 7.2 69
Show 19071+6205 UC 3802 128 16.4 72
Show 18472+6215 LDS2749 231 21.5 72
Show 18473+6254 ES 127 144 4.9 76
Show 19074+6156 UC 3806 6 34.2 77
Show 18593+6347 ES 1844 AB 19 2.6 86
Show 18593+6347 ES 1844 AC 119 15.5 86
Show 19069+6320 LDS2759 353 146.4 86
Show 18448+6241 CFN 16 278 1.3 89
Show 19033+6104 ES 1796 100 5.9 91
Show 19066+6116 ES 191 240 6.1 95
Show 19110+6224 HU 943 122 0.5 96
Show 18480+6113 LDS2750 136 2.2 99
Show 18439+6303 KPP4117 24 1.5 101
Show 18461+6121 MLR 7 303 1.1 101
Show 19000+6403 LDS2425 82 32.9 102
Show 18572+6406 KPP4130 294 2.2 103
Show 19068+6106 LDS2758 AB 350 20.8 104
Show 19033+6400 JOD 16 AB 151 0.2 104
Show 19033+6400 JOD 16 AB,C 65 3.6 104
Show 19044+6358 UC 3786 244 20.4 106
Show 18411+6226 LDS2746 288 17.7 114
Show 19135+6212 TOI1464 105 1.5 114
Show 18462+6351 STI 861 61 12.8 116
Show 18554+6420 MLR 59 286 0.8 118
Show 19143+6230 MLR 10 333 0.5 119
Show 18483+6044 LDS2751 152 7.6 119
Show 18413+6311 ES 1839 13 4.2 120
Show 19035+6416 ES 1913 296 5.8 120
Show 19132+6312 AG 228 101 37.1 120
Show 19017+6028 MLB 139 AB 126 5.2 120
Show 19017+6028 MLB 139 AC 268 35.8 120

 
 
WDS 18573+6224 : COMPONENTS
 
 
  A B C
B pa=122.2°
sep=17.36"
 
C pa=59.8°
sep=160.96"
pa=54.1°
sep=153.70"
 
D pa=70.5°
sep=53.90"
pa=53.0°
sep=45.24"
pa=234.5°
sep=108.47"
 
 
18573+6224 A
 
 
Name HD 176668 Coord arcsec 2000 185717.34+622348.7 Mag 6.59 Spectral class G8III (yellow)
PmRA 6.00 PmDE -41.0 SAO 18082 HIP 93053
Tycho2 4220-01507-1 HD 176668 HR 7191 GC 26074
BD BD+62 1669
Tycho2
Tycho2 4220-01507-1 Pflag RAmdeg 284.32225400 DEmdeg 62.39677491
PmRA 3.3 PmDE -40.4 E RAmdeg 4 E DEmdeg 4
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.58 EpDEm 1991.54
Num 10 Q RAmdeg 0.8 Q DEmdeg 0.8 Q pmRA 0.8
Q pmDE 0.9 BTmag 7.654 E BTmag 0.015 VTmag 6.591
E VTmag 0.010 Prox 173 TYC T HIP 93053
CCDM A RAdeg 284.32223778 DEdeg 62.39686833 EpRA 1990 1.74
EpDE 1990 1.67 E RAdeg 4.0 E DEdeg 4.2 Posflg
Corr -0.1
SAO
SAO 18082 DelFlag RA1950 PmRA1950 0
DE1950 PmDE1950 -0.038 Vmag 6.4 SpType K0
Double code Source 70 CatNum 26074 DM BD+62 1669
DMcomp BDsup HD 176668 M HD 0
GC 26074 RA1950rad 4.96016827 DE1950rad 1.0878416 PmRA2000 0.0008
PmDE2000 -0.039
Hipparcos
Catalog H HIP 93053 Proxy RAhms 18 57 17.34
DEdms +62 23 48.7 Vmag 6.5 VarFlag R Vmag H
RAdeg 284.322 DEdeg 62.3969 AstroRef A Plx 10.7
CCDM 5.86 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 122 Rho 17.306 HD BD BD+62 1669
CD CP Dm number +62 1669 VIred 0.92
SpType G5IV comp R SpType Coord arcsec 2000 185717.34+622348.7
Hipparcos 2
HIP 93053 Sn 15 So 3 Nc 2
RArad 4.962359072 DErad 1.0890308739 Plx 10.48 PmRA 7.42
PmDE -39.94 E RArad 0.88 E DErad 0.74 E Plx 0.84
E pmRA 1.24 E pmDE 0.81 Hpmag E Hpmag 0.0098
SHp 0.017 VA 0 BV 0.927 E BV 0.008
VI 0.92
 
 
18573+6224 B
 
 
Coord arcsec 2000 185719.45+622339.4 Mag 9.61 PmRA 8.00 PmDE -42.0
Delta magnitude 3.02 Coordinate calculated yes
 
 
18573+6224 C
 
 
Coord arcsec 2000 185737.36+622509.7 Mag 10.92 PmRA 0.00 PmDE -24.0
Delta magnitude 4.33 Coordinate calculated yes
 
 
18573+6224 D
 
 
Coord arcsec 2000 185724.65+622406.7 Mag 13.45 PmRA 1.00 PmDE 22.0
Delta magnitude 6.86 Coordinate calculated yes