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Doubles in session


Current system
13454+2857
LAW 20 AB


Nearby doubles
34' : 13466+2826
KOP 1

43' : 13487+2901
AZC 80

52' : 13419+2836
SHN 180

54' : 13414+2902
KPP 292

59' : 13499+2855
CBL 431

60' : 13425+2812
ES 442

64' : 13449+2755
LDS1396

78' : 13488+2753
HDS1942AB

80' : 13457+3017
CVR1540

83' : 13407+2804
BUP 151

83' : 13496+2959
GRV 874

92' : 13512+2948
A 685

94' : 13499+3011
CVR1547

99' : 13383+2930
HDS1913

101' : 13520+2807
CLZ 61AB

104' : 13532+2839
DRS 52AB

105' : 13437+3039
UC 2599

108' : 13378+2819
HJ 3341AB

108' : 13407+2730
SLW 907

116' : 13367+2847
HDS1910AB

117' : 13462+3054
PIN 8

118' : 13498+3041
TDS8988

118' : 13510+3030
KPP 595

126' : 13359+2907
CVR1523

127' : 13372+3005
STF1766

128' : 13409+2705
SLW 909



Selections
Full WDS
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.

13454+2857 LAW 20 AB

 
 
13h 45m 25.97s +28° 57' 23.5" P.A. 89.00 sep 20.3 mag 15.00,16.30 Sp M2.5+M3.0
 
 
Coord 2000 13454+2857 Discov num LAW  20 Comp AB Coord arcsec 2000 13 45 25.97 +28 57 23.5
Date first 1950 Date last 2015 Obs 12
Pa first 89 Pa last 89.3 P.A. Now (θ) 89.3°
Sep first 20.6 Sep last 20.323 Sep. Now (ρ) 20.323"
Mag pri 15.00 Mag sec 16.30 delta mag (ΔM) 1.3 Spectral class M2.5+M3.0 (red/red)
Pri motion ra -080 Sec motion ra -083
Pri motion dec +034 Sec motion dec +034
Notes V (Proper motion indicates physical)
rPM=0.033 (< 0.3, Physical double)
This double is physical.
 
 
13454+2857 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 13 45 26 +28 57 24 LAW 20 Aa,Ab 2018 3 69 0.1 14.58
Show 13 45 26 +28 57 24 LAW 20 AB 2015 12 89 20.3 15.00 16.30 1.30 <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Canes Venatici Gaia DR2 1454873721451804928
 
 
WDS 13454+2857 LAW 20 AB : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Law2006 Ss - Law, N.M., Hodgkin, S.T., & Mackay, C.D. 2006MNRAS.368.1917L
Law2006 MNRAS 368, 1917, 2006
Law2008 Ss - Law, N.M., Hodgkin, S.T., & Mackay, C.D. 2008MNRAS.384..150L
Law2008 MNRAS 384, 150, 2008
Law2008 All measures of known pairs in Law2008 appear to be off by 90 (or 270) degrees.
Law2008 Corrected and N code code added to measure.
Law2010 Ag j Law, N.M., Dhital, S., Kraus, A., Stassun, K.G. & West, A.A. 2010ApJ...720.1727L
Law2010 +Es ApJ 720, 1727, 2010
Law2010 +C
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13454+2857 LAW 20 AB 2009 1 89 21.2 15.00 16.30 M2.5+M3.0 134535.97+285723.5
13454+2857 LAW 20 AB 2015 5 89 20.3 15.00 16.30 M2.5+M3.0 V 134525.97+285723.5

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

 
 
WDS 13454+2857 LAW 20 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 13454+2857 LAW 20 AB : MEASURES
 
 
No records found.

 
 
WDS 13454+2857 : VIRTUAL EYEPIECE
 
 

13454+2857 LAW 20A mag 15 Sp M2.5 13454+2857 LAW 20Ab sep 0.1 P.A. 66.00 Sp M2.5 13454+2857 LAW 20B sep 17.8 P.A. 89.20 mag 16.3 Sp M3.0 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 13454+2857 : ALADIN DSS IMAGE @ 13h 45m 25.97s +28° 57' 23.5"
 
 
 
 
WDS 13454+2857 LAW 20 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

13454+2857 LAW 20AB distance=0' 13466+2826 KOP 1 distance=34' 13487+2901 AZC 80 distance=43' 13419+2836 SHN 180 distance=52' 13414+2902 KPP 292 distance=54' 13499+2855 CBL 431 distance=59' 13425+2812 ES 442 distance=60' 13449+2755 LDS1396 distance=64' 13488+2753 HDS1942AB distance=78' 13488+2753 HDS1942AC distance=78' 13488+2753 GII 199Aa,Ab distance=78' 13457+3017 CVR1540 distance=80' 13407+2804 BUP 151 distance=83' 13496+2959 GRV 874 distance=83' 13512+2948 A 685 distance=92' 13499+3011 CVR1547 distance=94' 13383+2930 HDS1913 distance=99' 13520+2807 KPP4379BC distance=101' 13520+2807 CLZ 61AB distance=101' 13532+2839 DRS 52AB distance=104' 13532+2839 TOK 569AC distance=104' 13437+3039 UC 2599 distance=105' 13378+2819 HJ 3341AB distance=108' 13378+2819 HJ 3341AC distance=108' 13407+2730 SLW 907 distance=108' 13367+2847 HDS1910AB distance=116' 13367+2847 GRV 870AB,C distance=116' 13462+3054 PIN 8 distance=117' 13498+3041 TDS8988 distance=118' 13510+3030 KPP 595 distance=118' 13359+2907 CVR1523 distance=126' 13372+3005 STF1766 distance=127' 13409+2705 SLW 909 distance=128' 13491+2659 STF1785 distance=128' 13490+3056 BRT 250 distance=129' 13544+2955 STT 272AB distance=131' 13544+2955 GII 200Aa,Ab distance=131' 13463+3110 LDS1397 distance=132' 13403+2701 BRT 163 distance=135' 13352+2926 SLW 897 distance=137' 13518+2703 AZC 81 distance=143' 13512+3103 CBL 598 distance=147' 13442+3127 ES 310 distance=150' 13461+3131 LDS5222AB distance=156' 13439+3133 ES 309 distance=158' 13531+3100 KPP2083 distance=158' 13420+2625 SLW 913 distance=160' 13336+2944 A 1095 distance=163' 13567+3010 A 686 distance=165' 13524+3115 CVR1550 distance=165' 13497+3134 SLW 937 distance=166' 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 13454+2857 LAW 20 Aa,Ab 69 0.1
Show 13454+2857 LAW 20 AB 89 20.3
Show 13466+2826 KOP 1 182 20.6 34
Show 13487+2901 AZC 80 57 14.5 43
Show 13419+2836 SHN 180 -1 0.3 52
Show 13414+2902 KPP 292 11 3.6 54
Show 13499+2855 CBL 431 358 58.6 59
Show 13425+2812 ES 442 256 4.2 60
Show 13449+2755 LDS1396 301 45.3 64
Show 13488+2753 HDS1942 AB 103 0.6 78
Show 13488+2753 HDS1942 AC 43 1.7 78
Show 13488+2753 GII 199 Aa,Ab 138 0.2 78
Show 13457+3017 CVR1540 252 3.8 80
Show 13407+2804 BUP 151 223 89.7 83
Show 13496+2959 GRV 874 173 64.7 83
Show 13512+2948 A 685 18 0.8 92
Show 13499+3011 CVR1547 84 3.8 94
Show 13383+2930 HDS1913 139 2.4 99
Show 13520+2807 KPP4379 BC 247 1.9 101
Show 13520+2807 CLZ 61 AB 1 11.4 101
Show 13532+2839 DRS 52 AB 122 5.3 104
Show 13532+2839 TOK 569 AC 275 999.9 104
Show 13437+3039 UC 2599 47 28.9 105
Show 13378+2819 HJ 3341 AB 190 2.4 108
Show 13378+2819 HJ 3341 AC 76 119.4 108
Show 13407+2730 SLW 907 34 35.1 108
Show 13367+2847 HDS1910 AB 161 0.2 116
Show 13367+2847 GRV 870 AB,C 118 22.4 116
Show 13462+3054 PIN 8 317 104.2 117
Show 13498+3041 TDS8988 176 0.6 118
Show 13510+3030 KPP 595 143 5.5 118
Show 13359+2907 CVR1523 57 4.1 126
Show 13372+3005 STF1766 68 20.2 127
Show 13409+2705 SLW 909 314 29.9 128
Show 13491+2659 STF1785 193 2.7 128
Show 13490+3056 BRT 250 137 5.5 129
Show 13544+2955 STT 272 AB 357 1.4 131
Show 13544+2955 GII 200 Aa,Ab 140 0.1 131
Show 13463+3110 LDS1397 64 103.8 132
Show 13403+2701 BRT 163 103 5.0 135
Show 13352+2926 SLW 897 197 60.5 137
Show 13518+2703 AZC 81 86 33.6 143
Show 13512+3103 CBL 598 120 67.9 147
Show 13442+3127 ES 310 49 5.4 150
Show 13461+3131 LDS5222 AB 110 101.1 156
Show 13439+3133 ES 309 143 1.7 158
Show 13531+3100 KPP2083 267 16.8 158
Show 13420+2625 SLW 913 94 41.2 160
Show 13336+2944 A 1095 288 0.3 163
Show 13567+3010 A 686 162 1.7 165
Show 13524+3115 CVR1550 244 4.4 165

 
 
WDS 13454+2857 : COMPONENTS
 
 
  A Ab
Ab pa=66.0°
sep=0.12"
 
B pa=89.2°
sep=17.78"
pa=89.3°
sep=17.68"
 
 
13454+2857 A
 
 
Coord arcsec 2000 134525.97+285723.5 Mag 15 Spectral class M2.5 (red) PmRA -80.00
PmDE 34.0
 
 
13454+2857 Ab
 
 
Coord arcsec 2000 134525.98+285723.5 Spectral class M2.5 (red) Calc delta mag 14.58 Calc coord yes
 
 
13454+2857 B
 
 
Coord arcsec 2000 134527.32+285723.7 Mag 16.3 Spectral class M3.0 (red) PmRA -83.00
PmDE 34.0 Calc delta mag 1.72 Calc coord yes