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Doubles in session


Current system
15545-2720
LAF 83 AC


Nearby doubles
26' : 15542-2746
B 2795AB

39' : 15557-2645
I 977

42' : 15575-2710
B 302

50' : 15564-2803
B 300

58' : 15586-2736
RST1867

71' : 15507-2632
HDS2232

75' : 15581-2624
USD 197

76' : 15500-2636
SWR 182

76' : 16001-2732
RST1870

78' : 15592-2635
TOK 738

84' : 15598-2804
WSP 17AB
Diwo

84' : 16007-2706
BRT3027

87' : 15561-2556
RST2986

94' : 15589-2607
BU 622AB
Fang

95' : 15562-2548
B 299

96' : 16013-2652
KOH 66AB

97' : 15555-2545
TOK 734

98' : 15592-2606
KSA 78AB

100' : 15535-2858
LDS5849

100' : 15475-2755
GAT 18AB

104' : 16002-2611
SEE 255AB

105' : 15570-2541
B 855

106' : 15494-2600
KOH 50AB

106' : 15598-2840
RST1868

107' : 15570-2539
UC 3091

107' : 16012-2820
SEE 257



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.

15545-2720 LAF 83 AC

 
 
15h 54m 30.10s -27° 20' 19.0" P.A. 175.00 sep 6.9 mag 6.30,15.27 Sp B7V dist. 158.23 pc (516.15 l.y.)
 
 
Coord 2000 15545-2720 Discov num LAF  83 Comp AC Coord arcsec 2000 15 54 30.10 -27 20 19.0
Date first 2008 Date last 2008 Obs 1
Pa first 175 Pa last 174.9 P.A. Now (θ) 174.9°
Sep first 6.9 Sep last 6.86 Sep. Now (ρ) 6.86"
Mag pri 6.30 Mag sec 15.27 delta mag (ΔM) 8.97 Spectral class B7V (blue-white)
Pri motion ra -013 Sec motion ra
Pri motion dec -026 Sec motion dec
Notes U K (Proper motion indicates non-physical, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is not physical.
 
 
15545-2720 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 183907 15 54 30 -27 20 19 LAF 83 AB 2008 1 297 5.6 6.30 17.03 10.73
Show 183907 15 54 30 -27 20 19 LAF 83 AC 2008 1 175 6.9 6.30 15.27 8.97 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Scorpius SAO 183907 HIP 77900 Tycho2 6787-02378-1
Gaia DR2 6233740654686482560 HD 142250 HR 5910 CD CD-2611096
CP CP-26 5537 Distance 158.23 Distance ly 516.15
 
 
WDS 15545-2720 LAF 83 AC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Laf2007 A j Lafreniere, D., Doyon, R., Marois, C., Nadeau, D., Oppenheimer, B.R., Roche, P.F., 2007ApJ...670.1367L
Laf2007 +C Rigaut, F., Graham, J.R., et al.
Laf2007 ApJ 670, 1367, 2007
Laf2008 A j Lafreniere, D., Jayawardhana, R., Brandeker, A., Ahmic, M., & van Kerkwijk, M.H. 2008ApJ...683..844L
Laf2008 +Hp ApJ 683, 844, 2008
Laf2008b A j Lafreniere, D., Jayawardhana, R., & van Kerkwijk, M.H. 2008ApJ...689L.153L
Laf2008b ApJ 689, L153, 2008
Laf2009 Hn u Lafreniere, D., Marois, C., Doyon, R., & Barman, T. 2009ApJ...694L.148L
Laf2009 ApJ 694, L148, 2009
Laf2010 A u Lafreniere, D., Jayawardhana, R., & van Kerkwijk, M.H. 2010ApJ...719..497L
Laf2010 ApJ 719, 497, 2010
Laf2011 A u Lafreniere, D., Jayawardhana, R., Janson, M., Helling, C., Witte, S., & 2011ApJ...730...42L
Laf2011 Hauschildt, P.
Laf2011 ApJ 730, 42, 2011
Laf2011 (photometry of both components based on 2MASS PSC plus their contrast measures)
Laf2014 A j Lafreniere, D., Jayawardhana, R., van Kerkwijk, M.H., Brandeker, A., & Janson, M. 2014ApJ...785...47L
Laf2014 +Al ApJ 785, 47, 2014
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15545-2720 LAF 83 AC 2008 1 175 6.9 6.30 15.27 B7V U K 155430.10-272019.0

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

 
 
WDS 15545-2720 LAF 83 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15545-2720 LAF 83 AC : MEASURES
 
 
No records found.

 
 
WDS 15545-2720 : VIRTUAL EYEPIECE
 
 

15545-2720 LAF 83A mag 6.3 Sp B7V 15545-2720 LAF 83B sep 5.1 P.A. 299.40 mag 17.03 15545-2720 LAF 83C sep 6.8 P.A. 175.50 mag 15.27 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 15545-2720 : ALADIN DSS IMAGE @ 15h 54m 30.10s -27° 20' 19.0"
 
 
 
 
WDS 15545-2720 LAF 83 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15545-2720 LAF 83AC distance=0' 15542-2746 TDS9685Aa,Ab distance=26' 15542-2746 B 2795AB distance=26' 15527-2705 USD 89Aa,Ab distance=29' 15557-2645 I 977 distance=39' 15575-2710 B 302 distance=42' 15564-2803 B 300 distance=50' 15586-2736 RST1867 distance=58' 15555-2616 TOK 790Aa,Ab distance=66' 15507-2632 HDS2232 distance=71' 15581-2624 USD 197 distance=75' 15500-2636 SWR 182 distance=76' 16001-2732 RST1870 distance=76' 15592-2635 TOK 738 distance=78' 15598-2804 WSP 17AB (Diwo) distance=84' 15598-2804 WSP 17AC (Diwo) distance=84' 15598-2804 WSP 17AD (Diwo) distance=84' 15598-2804 WSP 17AE (Diwo) distance=84' 15598-2804 WSP 17AF (Diwo) distance=84' 15598-2804 WSP 17AG (Diwo) distance=84' 15598-2804 WSP 17AH (Diwo) distance=84' 15598-2804 WSP 17AI (Diwo) distance=84' 16007-2706 BRT3027 distance=84' 15561-2556 RST2986 distance=87' 15589-2607 SHT 60Aa,Ab (Fang) distance=94' 15589-2607 BU 622AB (Fang) distance=94' 15589-2607 KOH 61Ba,Bb distance=94' 15562-2548 B 299 distance=95' 16013-2652 KOH 66AB distance=96' 16013-2652 LAF 91AC distance=96' 16013-2652 LAF 91AD distance=96' 16013-2652 LAF 91AE distance=96' 15555-2545 TOK 734 distance=97' 15592-2606 KSA 78AB distance=98' 15592-2606 KSA 78BC distance=98' 15475-2755 TSN 177CD distance=98' 15535-2858 LDS5849 distance=100' 15475-2755 GAT 18AB distance=100' 15475-2755 GAT 18AC distance=100' 16002-2611 SEE 255AB distance=104' 16002-2611 SEE 255AC distance=104' 15570-2541 B 855 distance=105' 15494-2600 KOH 50AB distance=106' 15598-2840 RST1868 distance=106' 15570-2539 UC 3091 distance=107' 16012-2820 SEE 257 distance=107' 15476-2816 TDS9626 distance=108' 15598-2556 KOH 62 distance=111' 15488-2842 LDS5846 distance=112' 16009-2834 UC 3104 distance=113' 16018-2818 SEE 261 distance=113' 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 15545-2720 LAF 83 AB 297 5.6
Show 15545-2720 LAF 83 AC 175 6.9
Show 15542-2746 TDS9685 Aa,Ab 114 0.6 26
Show 15542-2746 B 2795 AB 227 10.0 26
Show 15527-2705 USD 89 Aa,Ab 45 0.7 29
Show 15557-2645 I 977 264 0.6 39
Show 15575-2710 B 302 143 0.5 42
Show 15564-2803 B 300 325 1.8 50
Show 15586-2736 RST1867 80 0.6 58
Show 15555-2616 TOK 790 Aa,Ab 129 0.8 66
Show 15507-2632 HDS2232 197 0.3 71
Show 15581-2624 USD 197 229 0.4 75
Show 15500-2636 SWR 182 256 25.0 76
Show 16001-2732 RST1870 65 0.2 76
Show 15592-2635 TOK 738 192 0.7 78
Show Diwo 15598-2804 WSP 17 AB 201 11.1 84
Show Diwo 15598-2804 WSP 17 AC 84 13.7 84
Show Diwo 15598-2804 WSP 17 AD 10 16.0 84
Show Diwo 15598-2804 WSP 17 AE 201 3.3 84
Show Diwo 15598-2804 WSP 17 AF 258 7.5 84
Show Diwo 15598-2804 WSP 17 AG 140 17.2 84
Show Diwo 15598-2804 WSP 17 AH 34 20.6 84
Show Diwo 15598-2804 WSP 17 AI 166 22.9 84
Show 16007-2706 BRT3027 134 5.7 84
Show 15561-2556 RST2986 49 2.3 87
Show Fang 15589-2607 SHT 60 Aa,Ab 244 2.0 94
Show Fang 15589-2607 BU 622 AB 129 50.4 94
Show 15589-2607 KOH 61 Ba,Bb 331 2.9 94
Show 15562-2548 B 299 340 4.0 95
Show 16013-2652 KOH 66 AB 151 0.3 96
Show 16013-2652 LAF 91 AC 115 5.9 96
Show 16013-2652 LAF 91 AD 113 6.9 96
Show 16013-2652 LAF 91 AE 330 11.1 96
Show 15555-2545 TOK 734 137 0.4 97
Show 15592-2606 KSA 78 AB 329 2.9 98
Show 15592-2606 KSA 78 BC 352 0.1 98
Show 15475-2755 TSN 177 CD 164 0.1 98
Show 15535-2858 LDS5849 253 132.7 100
Show 15475-2755 GAT 18 AB 124 1.3 100
Show 15475-2755 GAT 18 AC 37 111.9 100
Show 16002-2611 SEE 255 AB 2 15.0 104
Show 16002-2611 SEE 255 AC 329 17.9 104
Show 15570-2541 B 855 236 1.0 105
Show 15494-2600 KOH 50 AB 116 0.1 106
Show 15598-2840 RST1868 350 1.9 106
Show 15570-2539 UC 3091 261 29.6 107
Show 16012-2820 SEE 257 340 6.6 107
Show 15476-2816 TDS9626 256 0.9 108
Show 15598-2556 KOH 62 85 5.5 111
Show 15488-2842 LDS5846 158 41.0 112
Show 16009-2834 UC 3104 219 34.7 113

 
 
WDS 15545-2720 : COMPONENTS
 
 
  A B
B pa=299.4°
sep=5.08"
 
C pa=175.5°
sep=6.85"
pa=152.0°
sep=10.57"
 
 
15545-2720 A
 
 
Coord arcsec 2000 155430.10-272019.0 Mag 6.3 Spectral class B7V (blue-white) PmRA -13.00
PmDE -26.0 SAO 183907 HIP 77900 Tycho2 6787-02378-1
HD 142250 HR 5910 GC 21352 CD CD-2611096
CP CP-26 5537
Tycho2
Tycho2 6787-02378-1 Pflag RAmdeg 238.62544787 DEmdeg -27.33863994
PmRA -14.0 PmDE -26.3 E RAmdeg 3 E DEmdeg 4
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.51 EpDEm 1990.91
Num 17 Q RAmdeg 0.7 Q DEmdeg 1.2 Q pmRA 0.8
Q pmDE 1.3 BTmag 6.056 E BTmag 0.014 VTmag 6.128
E VTmag 0.010 Prox 999 TYC T HIP 77900
CCDM RAdeg 238.62548389 DEdeg -27.33857639 EpRA 1990 1.76
EpDE 1990 1.30 E RAdeg 3.4 E DEdeg 4.0 Posflg
Corr 0.1
SAO
SAO 183907 DelFlag RA1950 PmRA1950 -0.0018
DE1950 PmDE1950 -0.026 Vmag 6 SpType B5
Double code Source 70 CatNum 21352 DM CD-2611096
DMcomp BDsup HD 142250 M HD 0
GC 21352 RA1950rad 4.15148739 DE1950rad -0.474585 PmRA2000 -0.0019
PmDE2000 -0.023
Hipparcos
Catalog H HIP 77900 Proxy RAhms 15 54 30.12
DEdms -27 20 18.9 Vmag 6.15 VarFlag R Vmag H
RAdeg 238.625 DEdeg -27.3386 AstroRef Plx 6.14
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 142250 BD
CD CD-2611096 CP CP-26 5537 Dm number -2611096 VIred -0.04
SpType B7V R SpType Coord arcsec 2000 155430.12-272018.9
Hipparcos 2
HIP 77900 Sn 5 So 0 Nc 1
RArad 4.1648004902 DErad -0.4771481376 Plx 6.32 PmRA -12.07
PmDE -26.17 E RArad 0.44 E DErad 0.25 E Plx 0.46
E pmRA 0.51 E pmDE 0.42 Hpmag 6.1313 E Hpmag 0.0008
SHp 0.006 VA 0 BV -0.069 E BV 0.006
VI -0.05
 
 
15545-2720 B
 
 
Coord arcsec 2000 155429.77-272016.5 Mag 17.03 Calc delta mag 10.73 Calc coord yes
 
 
15545-2720 C
 
 
Coord arcsec 2000 155430.14-272025.8 Mag 15.27 Calc delta mag 8.97 Calc coord yes