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Current system
14162+5122
STFA 26 AB
Asellus secondus


Nearby doubles
24' : 14171+5100
A 147

30' : 14191+5133
BEM9018

31' : 14136+5104
LDS2926

36' : 14166+5048
LDS1412

36' : 14151+5048
BEM 10

36' : 14135+5147
STF1821AB

39' : 14170+5044
DAM 79

45' : 14204+5141
ES 19AB

50' : 14129+5043
YSC 105

57' : 14155+5026
STF1829

57' : 14183+5215
SHN 188

58' : 14220+5107
A 148

59' : 14131+5031
BEM 9

59' : 14223+5112
LEP 143

71' : 14153+5232
SHY 645

72' : 14161+5010
BDK 8

75' : 14187+5232
TDS9160

75' : 14127+5230
ES 737

75' : 14236+5055
AZC 169

82' : 14236+5205
BEM9019

83' : 14171+5000
RAO 587

83' : 14110+5015
STF1814

84' : 14073+5116
RAO 312

85' : 14224+5225
ES 738

86' : 14160+5247
A 1616

87' : 14124+5004
CVR1570



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

14162+5122 STFA 26 AB (Asellus secondus)

 
 
14h 16m 10.07s +51° 22' 01.3" P.A. 33.00 sep 39.0 mag 4.76,7.39 Sp A7IV+K0V dist. 29.07 pc (94.83 l.y.)
 
 
Coord 2000 14162+5122 Discov num STFA 26 Comp AB Coord arcsec 2000 14 16 10.07 +51 22 01.3
Date first 1779 Date last 2020 Obs 111
Pa first 37 Pa last 33 P.A. Now (θ) 33°
Sep first 37.6 Sep last 39 Sep. Now (ρ) 39"
Mag pri 4.76 Mag sec 7.39 delta mag (ΔM) 2.63 Spectral class A7IV+K0V (white/yellow-orange)
Pri motion ra -149 Sec motion ra -144
Pri motion dec +089 Sec motion dec +092
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.034 (< 0.3, Physical double)
This double is physical.
 
 
14162+5122 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Asellus secondus 29071 14 16 10 +51 22 01 STFA 26 AB 2020 111 33 39.0 4.76 7.39 2.63 <===
Show 29071 14 16 10 +51 22 01 STFA 26 AC 2016 6 186 94.4 4.76 13.51 8.75
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Asellus secondus Constellation Bootes SAO 29071 HIP 69713
Tycho2 3478-01333-1 Gaia DR2 1511727333122255744 HD 125161 HR 5350
GC 19269 ADS 9198 GL Wo 9474A BD BD+52 1784
Bayer Iota Bootis Bayer name Iot Boo Flamsteed 21 Bootis Flamsteed name 21 Boo
FK5 528 Distance 29.07 Distance ly 94.83 Bayer greek ι Boo
Meaning second donkey colt
 
 
WDS 14162+5122 STFA 26 AB (Asellus secondus) : NOTES
 
 
discov_num notes refcode
STFA 26 21 Boo = iot Boo. STTA128. A is a spectroscopic binary and a Delta
Scuti-type variable, P = 0.027d. B is BD+52@1785.
Struve suspected a close companion to A (1836.28, 149.9deg, 0".3) StF1837
as did Smyth (1838.19, 195.0deg, 0".5) but this supposed pair Smy1844
has never been confirmed with larger telescopes.
AB: H 5 9. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Smy1844 Ma - Smyth, W.H. 1844QB43.S66.......
Smy1844 Cycle of Celestial Objects 2, 1844
StF1837 Ma - Struve, F.G.W. 1837AN.....14...249
StF1837 Stellarum duplicium et multiplicium mensurae micrometricae...
StF1837 (Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
14162+5122 STFA 26 AB 2005 81 33 38.7 4.76 7.39 A7IV K0V N DV 141610.07+512201.3
14162+5122 STFA 26 AB 2009 84 33 39.0 4.76 7.39 A7IV K0V N DV 141610.07+512201.3
14162+5122 STFA 26 AB 2010 91 32 37.1 4.76 7.39 A7IV K0V NVD 141610.07+512201.3
14162+5122 STFA 26 AB 2011 92 33 38.8 4.76 7.39 A7IV K0V NVD 141610.07+512201.3
14162+5122 STFA 26 AB 2014 95 32 38.7 4.76 7.39 A7IV K0V NVD 141610.07+512201.3
14162+5122 STFA 26 AB 2015 99 32 39.1 4.76 7.39 A7IV+K0V NVD 141610.07+512201.3
14162+5122 STFA 26 AB 2016 102 33 38.8 4.76 7.39 A7IV+K0V NV 141610.07+512201.3
14162+5122 STFA 26 AB 2017 103 33 38.9 4.76 7.39 A7IV+K0V NV 141610.07+512201.3
14162+5122 STFA 26 AB 2019 107 34 39.4 4.76 7.39 A7IV+K0V NV 141610.07+512201.3
14162+5122 STFA 26 AB 2020 110 33 39.0 4.76 7.39 A7IV+K0V NV 141610.07+512201.3

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

 
 
WDS 14162+5122 STFA 26 AB (Asellus secondus) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 22/05/30 daedalus1   separated 33   Seeing Pickering 8, good. Measure: theta 033, rho 39".5. Companion much smaller than Primary.

 
 
WDS 14162+5122 STFA 26 AB (Asellus secondus) : MEASURES
 
 
No records found.

 
 
WDS 14162+5122 (Asellus secondus) : VIRTUAL EYEPIECE
 
 

14162+5122 STFA 26A mag 4.76 Sp A7IV 14162+5122 STFA 26B sep 35.3 P.A. 22.10 mag 7.39 Sp K0V 14162+5122 STFA 26C sep 94.2 P.A. 183.40 mag 13.51 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 14162+5122 (Asellus secondus) : ALADIN DSS IMAGE @ 14h 16m 10.07s +51° 22' 01.3"
 
 
 
 
WDS 14162+5122 STFA 26 AB (Asellus secondus) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

14162+5122 STFA 26AB (Asellus secondus) distance=0' 14171+5100 A 147 distance=24' 14191+5133 BEM9018 distance=30' 14136+5104 LDS2926 distance=31' 14166+5048 LDS1412 distance=36' 14151+5048 BEM 10 distance=36' 14135+5147 STF1821AB distance=36' 14135+5147 TOK 295AC distance=36' 14135+5147 TOK 295BC distance=36' 14170+5044 DAM 79 distance=39' 14204+5141 ES 19AB distance=45' 14204+5141 ES 19AC distance=45' 14129+5043 YSC 105 distance=50' 14155+5026 STF1829 distance=57' 14183+5215 SHN 188 distance=57' 14220+5107 A 148 distance=58' 14131+5031 BEM 9 distance=59' 14223+5112 LEP 143 distance=59' 14153+5232 SHY 645 distance=71' 14161+5010 BDK 8 distance=72' 14187+5232 TDS9160 distance=75' 14127+5230 ES 737 distance=75' 14236+5055 AZC 169 distance=75' 14236+5205 BEM9019 distance=82' 14171+5000 RAO 587 distance=83' 14110+5015 STF1814 distance=83' 14073+5116 RAO 312 distance=84' 14224+5225 ES 738 distance=85' 14160+5247 A 1616 distance=86' 14124+5004 CVR1570 distance=87' 14252+5151 STT 580 (Asellus primus) distance=89' 14118+5003 LDS2924 distance=90' 14091+5227 SLW 975 distance=93' 14167+4948 UC 2722 distance=94' 14075+5027 SLW 967 distance=99' 14115+4948 CVR 728 distance=104' 14117+4946 BEM 8 distance=105' 14211+4942 UC 193 distance=111' 14276+5204 CBL 58 distance=115' 14267+5224 CVR1582 distance=116' 14041+5057 CVR 722 distance=117' 14133+4924 UC 2704 distance=122' 14158+5325 LDS2927 distance=125' 14267+5006 KPP4380BC distance=126' 14267+5006 MNK 2AB distance=126' 14267+5006 KPP4380AC distance=126' 14246+4945 UC 2755 distance=126' 14190+4918 BVD 236 distance=128' 14043+5022 LDS1405 distance=130' 14022+5137 UC 2663 distance=132' 14040+5013 LDS2920 distance=137' 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 Asellus secondus 14162+5122 STFA 26 AB 33 39.0
Show Asellus secondus 14162+5122 STFA 26 AC 186 94.4
Show 14171+5100 A 147 109 0.7 24
Show 14191+5133 BEM9018 31 16.3 30
Show 14136+5104 LDS2926 240 25.1 31
Show 14166+5048 LDS1412 164 283.3 36
Show 14151+5048 BEM 10 268 13.8 36
Show 14135+5147 STF1821 AB 236 13.8 36
Show 14135+5147 TOK 295 AC 73 108.6 36
Show 14135+5147 TOK 295 BC 71 121.8 36
Show 14170+5044 DAM 79 55 13.0 39
Show 14204+5141 ES 19 AB 48 1.7 45
Show 14204+5141 ES 19 AC 169 41.3 45
Show 14129+5043 YSC 105 209 0.6 50
Show 14155+5026 STF1829 151 5.6 57
Show 14183+5215 SHN 188 -1 0.0 57
Show 14220+5107 A 148 194 0.5 58
Show 14131+5031 BEM 9 284 11.6 59
Show 14223+5112 LEP 143 192 5.3 59
Show 14153+5232 SHY 645 135 999.9 71
Show 14161+5010 BDK 8 113 569.9 72
Show 14187+5232 TDS9160 123 2.1 75
Show 14127+5230 ES 737 299 3.3 75
Show 14236+5055 AZC 169 299 31.8 75
Show 14236+5205 BEM9019 15 13.9 82
Show 14171+5000 RAO 587 42 1.6 83
Show 14110+5015 STF1814 256 11.2 83
Show 14073+5116 RAO 312 225 0.5 84
Show 14224+5225 ES 738 311 5.5 85
Show 14160+5247 A 1616 84 1.7 86
Show 14124+5004 CVR1570 255 3.4 87
Show Asellus primus 14252+5151 STT 580 183 70.2 89
Show 14118+5003 LDS2924 23 50.2 90
Show 14091+5227 SLW 975 90 121.1 93
Show 14167+4948 UC 2722 300 45.8 94
Show 14075+5027 SLW 967 295 141.7 99
Show 14115+4948 CVR 728 58 7.1 104
Show 14117+4946 BEM 8 240 24.4 105
Show 14211+4942 UC 193 317 9.9 111
Show 14276+5204 CBL 58 289 13.4 115
Show 14267+5224 CVR1582 46 3.8 116
Show 14041+5057 CVR 722 254 11.4 117
Show 14133+4924 UC 2704 336 44.3 122
Show 14158+5325 LDS2927 42 5.5 125
Show 14267+5006 KPP4380 BC 165 10.0 126
Show 14267+5006 MNK 2 AB 152 2.4 126
Show 14267+5006 KPP4380 AC 152 2.3 126
Show 14246+4945 UC 2755 56 31.0 126
Show 14190+4918 BVD 236 125 22.5 128
Show 14043+5022 LDS1405 125 5.0 130
Show 14022+5137 UC 2663 331 17.4 132

 
 
WDS 14162+5122 : COMPONENTS
 
 
  A B
B pa=22.1°
sep=35.29"
 
C pa=183.4°
sep=94.18"
pa=188.5°
sep=128.12"
 
 
14162+5122 A
 
 
Common name Asellus secondus Meaning second donkey colt Coord arcsec 2000 141610.07+512201.3 Mag 4.76
Spectral class A7IV (white) PmRA -149.00 PmDE 89.0 SAO 29071
HIP 69713 Tycho2 3478-01333-1 HD 125161 HR 5350
GC 19269 BD BD+52 1784 Bayer Iota Bootis Bayer name Iot Boo
Flamsteed 21 Bootis Flamsteed name 21 Boo FK5 528
Tycho2
Tycho2 3478-01333-1 Pflag RAmdeg 214.04137107 DEmdeg 51.36723206
PmRA -150.2 PmDE 89.5 E RAmdeg 3 E DEmdeg 3
E pmRA 0.8 E pmDE 0.8 EpRAm 1991.34 EpDEm 1991.47
Num 18 Q RAmdeg 0.7 Q DEmdeg 0.7 Q pmRA 0.8
Q pmDE 0.9 BTmag 5.002 E BTmag 0.014 VTmag 4.763
E VTmag 0.009 Prox 387 TYC T HIP 69713
CCDM RAdeg 214.04193194 DEdeg 51.36702528 EpRA 1990 1.61
EpDE 1990 1.69 E RAdeg 3.3 E DEdeg 3.3 Posflg
Corr -0.2
SAO
SAO 29071 DelFlag RA1950 PmRA1950 -0.0165
DE1950 PmDE1950 0.088 Vmag 4.9 SpType A5
Double code Source 74 CatNum 528 DM BD+52 1784
DMcomp BDsup HD 125161 M HD 0
GC 19269 RA1950rad 3.72799948 DE1950rad 0.90054107 PmRA2000 -0.016
PmDE2000 0.092
Hipparcos
Catalog H HIP 69713 Proxy RAhms 14 16 10.07
DEdms +51 22 01.3 Vmag 4.75 VarFlag 1 R Vmag H
RAdeg 214.042 DEdeg 51.367 AstroRef Plx 33.54
CCDM 14162+5122 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 125161 BD BD+52 1784
CD CP Dm number +52 1784 VIred 0.19
SpType A9V R SpType Coord arcsec 2000 141610.07+512201.3
Hipparcos 2
HIP 69713 Sn 5 So 0 Nc 1
RArad 3.7357368764 DErad 0.8965235214 Plx 34.4 PmRA -149.39
PmDE 88.72 E RArad 0.15 E DErad 0.16 E Plx 0.19
E pmRA 0.19 E pmDE 0.17 Hpmag 4.8082 E Hpmag 0.0009
SHp 0.007 VA 0 BV 0.236 E BV 0.015
VI 0.19
CCDM
Ccdm 14162+5122 RComp Comp A Note1
Note2 Discov num DRAs -2.07 DDEs 2.1
R dRAs 10 Year Theta Rho
Obs 3 Vmag 4.9 Sp A5 PmNote *
PmRA -153 PmDE 88 Dm number +52 1784 Cat1 BD
Name2 +51 975 Cat2 AGK2/3 HD 125161 M HD
ADS BDS A 9198 M ADS BDS N IDS IDS 14126N5150A
HIC 69713
 
 
14162+5122 B
 
 
Coord arcsec 2000 141611.49+512234.0 Mag 7.39 Spectral class K0V (yellow-orange) PmRA -144.00
PmDE 92.0 SAO 29073 Tycho2 3478-00418-1 HD 234121
GC 19271 DM BD+52 1785 Calc delta mag 2.63 Calc coord yes
Tycho2
Tycho2 3478-00418-1 Pflag RAmdeg 214.05073864 DEmdeg 51.37626817
PmRA -142.4 PmDE 92.0 E RAmdeg 5 E DEmdeg 5
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.33 EpDEm 1991.30
Num 11 Q RAmdeg 1.2 Q DEmdeg 1.8 Q pmRA 1.2
Q pmDE 1.8 BTmag 8.082 E BTmag 0.015 VTmag 7.389
E VTmag 0.011 Prox 387 TYC T HIP
CCDM RAdeg 214.05126889 DEdeg 51.37605278 EpRA 1990 1.64
EpDE 1990 1.58 E RAdeg 4.9 E DEdeg 5.1 Posflg
Corr -0.1
SAO
SAO 29073 DelFlag RA1950 PmRA1950 -0.0179
DE1950 PmDE1950 0.082 Vmag 8.8 SpType A2
Double code Source 70 CatNum 19271 DM BD+52 1785
DMcomp BDsup HD 234121 M HD 0
GC 19271 RA1950rad 3.72815533 DE1950rad 0.90069738 PmRA2000 -0.0174
PmDE2000 0.086
CCDM
Ccdm 14162+5122 RComp Comp B Note1
Note2 Discov num STF4026 DRAs 0.06 DDEs 32.8
R dRAs 10 Year 1836 Theta 033 Rho 38.5
Obs 24 Vmag 7.5 Sp A2 PmNote *
PmRA -152 PmDE 68 Dm number +52 1785 Cat1 BD
Name2 +51 976 Cat2 AGK2/3 HD 234121 M HD
ADS BDS A 9198 M ADS BDS N IDS IDS 14126N5150B
HIC
 
 
14162+5122 C
 
 
Coord arcsec 2000 141609.47+512027.3 Mag 13.51 PmRA -6.00 PmDE -19.0
Calc delta mag 8.75 Calc coord yes
CCDM
Ccdm 14162+5122 RComp Comp C Note1
Note2 Discov num STF4026 DRAs -3.38 DDEs -89.4
R dRAs 65 Year 1911 Theta 197 Rho 85.9
Obs 2 Vmag 12.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 9198 M ADS BDS N IDS IDS 14126N5150C
HIC