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Doubles in session


Current system
15227-4441
COP 2 AB


Nearby doubles
7' : 15232-4445
SKF1397

24' : 15226-4418
CPO9198

34' : 15200-4423
BUG 12

42' : 15189-4430
B 1280

44' : 15254-4409
KPP 745

72' : 15280-4525
DON 733

79' : 15197-4330
KPP2660

80' : 15299-4506
B 2355

83' : 15301-4508
B 1293

85' : 15222-4605
CPO 425

85' : 15246-4319
B 1289

86' : 15153-4409
HDO 244

88' : 15146-4451
CPO 417

88' : 15201-4318
BRT 853

97' : 15308-4525
KOU 37AB

98' : 15229-4304
DAM1453

101' : 15186-4612
I 1267

101' : 15224-4301
LDS 525

106' : 15128-4430
SHT 59

108' : 15284-4610
HDS2176AB

108' : 15140-4348
I 228

108' : 15128-4508
TRC 5

110' : 15169-4612
CPO9197AB

111' : 15150-4556
BRT 852AB

113' : 15332-4443
DON 741

114' : 15188-4627
CPO 420



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.

15227-4441 COP 2 AB

 
 
15h 22m 40.89s -44° 41' 22.5" P.A. 24.00 sep 0.2 mag 3.56,5.04 Sp B2IV-V dist. 156.99 pc (512.1 l.y.)
 
 
Coord 2000 15227-4441 Discov num COP   2 Comp AB Coord arcsec 2000 15 22 40.89 -44 41 22.5
Date first 1883 Date last 2021 Obs 47
Pa first 285 Pa last 23.9 P.A. Now (θ) 23.9°
Sep first 0.8 Sep last 0.153 Sep. Now (ρ) 0.153"
Mag pri 3.56 Mag sec 5.04 delta mag (ΔM) 1.48 Spectral class B2IV-V (blue-white)
Pri motion ra -014 Sec motion ra
Pri motion dec -018 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
15227-4441 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 225712 15 22 41 -44 41 22 RIZ 13 Aa,Ab 2010 1 25 0.1 3.60 5.10 1.50
Show 225712 15 22 41 -44 41 22 COP 2 AB 2021 47 24 0.2 3.56 5.04 1.48 Y <===
Show Eps Lup 225712 15 22 41 -44 41 22 DUN 182 AC 2020 26 168 26.2 3.56 9.10 5.54
Show 225712 15 22 41 -44 41 22 RIZ 13 AD 2016 3 190 38.9 3.37 16.20 12.83
Quintuple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lupus SAO 225712 HIP 75264 Tycho2 7847-02505-1
Gaia DR2 6000130236633865856 HD 136504 HR 5708 GC 20659
CD CD-4410066 CP CP-44 7342 Bayer Epsilon Lupi Bayer name Eps Lup
Distance 156.99 Distance ly 512.1 Bayer greek ε Lup
 
 
ORBITAL ELEMENTS
 
 
Period (P)736.69y Periastron (T)2009.83y Semi-major axis (a)1.409a
Eccentricity (e)0.808 Inclination (i)117.6° Longitude of periastron (ω)19.6°
Node (Ω)125.1° Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 148.7 0.284
2001 145.5 0.286
2002 142.3 0.287
2003 139.1 0.288
2004 135.9 0.288
2005 132.6 0.286
2006 129.4 0.283
2007 126.0 0.279
2008 122.6 0.273
2009 118.9 0.266
2010 115.1 0.257
2011 110.9 0.246
2012 106.3 0.235
2013 101.2 0.223
2014 95.6 0.210
2015 89.2 0.199
2016 82.1 0.188
2017 74.3 0.180
2018 65.8 0.174
2019 56.8 0.171
2020 47.7 0.171
2021 38.9 0.175
2022 30.6 0.183
2023 23.1 0.193
2024 16.4 0.206
2025 10.5 0.220
2026 5.4 0.236
2027 1.0 0.253
2028 357.1 0.271
2029 353.8 0.290
2030 350.8 0.309


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


 
  


wds15227-4441b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 15227-4441 COP 2 AB : NOTES
 
 
discov_num notes refcode
COP 2 eps Lup. A is a spectroscopic binary.
 
 
REFERENCES
 
 
refcode metd author reference
Tok2015c orb+j Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. 2015AJ....150...50T
Tok2015c +St AJ 150, 50, 2015 (some measures corrected in Tok2017b) 2017AJ....154..110T
 
 
DISCOVERER
 
 
idgroup discov author
1 COP Copeland, R.
12 DUN Dunlop, J.
14 RIZ Rizzuto, A.C., Ireland, M.J., Robertson, J.G., Kok, Y., Tuthill, P.G.,
14 RIZ Warrington, B.A., Haubois, X., Tango, W.J., Norris, B., ten Brummelaar, T.,
14 RIZ Kraus, A.L., Jacob, A., & Laliberte-Houdeville, C.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15227-4441 COP 2 AB 2000 36 149 0.3 3.56 5.04 B2IV-V NO 152240.89-444122.5
15227-4441 COP 2 AB 2009 40 118 0.3 3.56 5.04 B2IV-V NO 152240.89-444122.5
15227-4441 COP 2 AB 2014 41 95 0.2 3.56 5.04 B2IV-V NO 152240.89-444122.5
15227-4441 COP 2 AB 2017 43 70 0.2 3.56 5.04 B2IV-V NO 152240.89-444122.5
15227-4441 COP 2 AB 2018 44 63 0.2 3.56 5.04 B2IV-V NO 152240.89-444122.5
15227-4441 COP 2 AB 2019 46 53 0.1 3.56 5.04 B2IV-V NO 152240.89-444122.5
15227-4441 COP 2 AB 2021 47 24 0.2 3.56 5.04 B2IV-V NO 152240.89-444122.5

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

 
 
WDS 15227-4441 COP 2 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15227-4441 COP 2 AB : MEASURES
 
 
No records found.

 
 
WDS 15227-4441 : VIRTUAL EYEPIECE
 
 

15227-4441 COP 2A mag 3.56 Sp B2IV 15227-4441 RIZ 13Ab mag 5.1 Sp V 15227-4441 COP 2B sep 0.1 P.A. 17.50 mag 5.04 Sp V 15227-4441 DUN 182C sep 25.9 P.A. 171.30 mag 9.1 Sp V 15227-4441 RIZ 13D sep 38.6 P.A. 187.10 mag 16.2 Sp V 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 15227-4441 : ALADIN DSS IMAGE @ 15h 22m 40.89s -44° 41' 22.5"
 
 
 
 
WDS 15227-4441 COP 2 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15227-4441 COP 2AB distance=0' 15232-4445 SKF1397 distance=7' 15226-4418 CPO9198 distance=24' 15200-4423 BUG 12 distance=34' 15189-4430 B 1280 distance=42' 15254-4409 KPP 745 distance=44' 15280-4525 DON 733 distance=72' 15197-4330 KPP2660 distance=79' 15299-4506 B 2355 distance=80' 15301-4508 B 1293 distance=83' 15222-4605 CPO 425 distance=85' 15246-4319 B 1289 distance=85' 15153-4409 HDO 244 distance=86' 15146-4451 CPO 417 distance=88' 15201-4318 BRT 853 distance=88' 15308-4525 KOU 37AB distance=97' 15308-4525 KOU 37AC distance=97' 15229-4304 DAM1453 distance=98' 15186-4612 I 1267 distance=101' 15224-4301 LDS 525 distance=101' 15128-4430 SHT 59 distance=106' 15284-4610 HDS2176AB distance=108' 15284-4610 SKF 946AC distance=108' 15284-4610 SKF 946AD distance=108' 15140-4348 I 228 distance=108' 15128-4508 TRC 5 distance=108' 15169-4612 CPO9197AB distance=110' 15169-4612 CPO9197AC distance=110' 15169-4612 TOK 590AD distance=110' 15150-4556 BRT 852AB distance=111' 15332-4443 DON 741 distance=113' 15188-4627 CPO 420 distance=114' 15150-4323 B 1275 distance=114' 15121-4501 I 238AB distance=115' 15121-4501 I 238AC distance=115' 15263-4252 DUN 184AB distance=117' 15145-4323 DUN 179 distance=118' 15116-4517 B 1267AB distance=123' 15116-4517 DUN 178AC distance=123' 15139-4321 DAW 210 distance=124' 15343-4456 BRT 857 distance=125' 15344-4449 BRT 858 distance=125' 15245-4645 HDS2168 distance=125' 15315-4319 DON 738 distance=126' 15249-4645 CPO 429 distance=127' 15131-4328 DON 722 distance=128' 15333-4340 CPO9199 distance=130' 15275-4243 KPP 345 distance=130' 15190-4236 DON 729 distance=133' 15298-4248 DON 736 distance=137' 15205-4226 HU 1514 distance=138' 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 15227-4441 COP 2 AB 24 0.2
Show 15227-4441 DUN 182 AC 168 26.2
Show 15227-4441 RIZ 13 Aa,Ab 25 0.1
Show 15227-4441 RIZ 13 AD 190 38.9
Show 15232-4445 SKF1397 343 36.5 7
Show 15226-4418 CPO9198 133 13.1 24
Show 15200-4423 BUG 12 22 1.0 34
Show 15189-4430 B 1280 300 0.8 42
Show 15254-4409 KPP 745 114 6.5 44
Show 15280-4525 DON 733 304 2.1 72
Show 15197-4330 KPP2660 133 24.9 79
Show 15299-4506 B 2355 269 1.5 80
Show 15301-4508 B 1293 74 2.7 83
Show 15222-4605 CPO 425 16 42.8 85
Show 15246-4319 B 1289 49 3.4 85
Show 15153-4409 HDO 244 40 14.0 86
Show 15146-4451 CPO 417 320 3.3 88
Show 15201-4318 BRT 853 8 3.4 88
Show 15308-4525 KOU 37 AB 106 5.6 97
Show 15308-4525 KOU 37 AC 228 9.1 97
Show 15229-4304 DAM1453 182 1.7 98
Show 15186-4612 I 1267 54 0.5 101
Show 15224-4301 LDS 525 90 11.0 101
Show 15128-4430 SHT 59 120 5.5 106
Show 15284-4610 HDS2176 AB 89 4.8 108
Show 15284-4610 SKF 946 AC 9 6.1 108
Show 15284-4610 SKF 946 AD 62 13.8 108
Show 15140-4348 I 228 13 1.2 108
Show 15128-4508 TRC 5 136 5.6 108
Show 15169-4612 CPO9197 AB 223 10.2 110
Show 15169-4612 CPO9197 AC 314 12.5 110
Show 15169-4612 TOK 590 AD 324 999.9 110
Show 15150-4556 BRT 852 AB 174 3.1 111
Show 15332-4443 DON 741 345 0.8 113
Show 15188-4627 CPO 420 64 4.9 114
Show 15150-4323 B 1275 57 2.0 114
Show 15121-4501 I 238 AB 136 3.2 115
Show 15121-4501 I 238 AC 316 34.2 115
Show 15263-4252 DUN 184 AB 97 21.3 117
Show 15145-4323 DUN 179 46 10.4 118
Show 15116-4517 B 1267 AB 314 1.3 123
Show 15116-4517 DUN 178 AC 255 30.1 123
Show 15139-4321 DAW 210 225 16.3 124
Show 15343-4456 BRT 857 21 4.8 125
Show 15344-4449 BRT 858 167 5.2 125
Show 15245-4645 HDS2168 10 8.1 125
Show 15315-4319 DON 738 64 3.1 126
Show 15249-4645 CPO 429 284 4.9 127
Show 15131-4328 DON 722 108 1.7 128
Show 15333-4340 CPO9199 4 3.8 130
Show 15275-4243 KPP 345 111 3.8 130

 
 
WDS 15227-4441 : COMPONENTS
 
 
  A Ab B C
Ab pa=18.0°
sep=0.05"
 
B pa=17.5°
sep=0.15"
pa=17.2°
sep=0.10"
 
C pa=171.3°
sep=25.88"
pa=171.3°
sep=25.92"
pa=171.4°
sep=26.01"
 
D pa=187.1°
sep=38.59"
pa=187.1°
sep=38.64"
pa=187.1°
sep=38.74"
pa=214.3°
sep=15.40"
 
 
15227-4441 A
 
 
Coord arcsec 2000 152240.89-444122.5 Mag 3.56 Spectral class B2IV (blue-white) PmRA -14.00
PmDE -18.0 SAO 225712 HIP 75264 Tycho2 7847-02505-1
HD 136504 HR 5708 GC 20659 CD CD-4410066
CP CP-44 7342 Bayer Epsilon Lupi Bayer name Eps Lup
Tycho2
Tycho2 7847-02505-1 Pflag RAmdeg 230.67030565 DEmdeg -44.68962812
PmRA -17.9 PmDE -23.4 E RAmdeg 3 E DEmdeg 3
E pmRA 1.0 E pmDE 1.3 EpRAm 1991.40 EpDEm 1991.42
Num 9 Q RAmdeg 1.3 Q DEmdeg 1.3 Q pmRA 1.3
Q pmDE 1.5 BTmag 3.142 E BTmag 0.014 VTmag 3.337
E VTmag 0.009 Prox 999 TYC T HIP 75264
CCDM AB RAdeg 230.67036472 DEdeg -44.68957278 EpRA 1990 1.61
EpDE 1990 1.51 E RAdeg 3.2 E DEdeg 3.3 Posflg P
Corr 0.3
SAO
SAO 225712 DelFlag RA1950 PmRA1950 -0.0018
DE1950 PmDE1950 -0.015 Vmag 3.7 SpType B3
Double code Source 70 CatNum 20659 DM CD-4410066
DMcomp BDsup HD 136504 M HD 0
GC 20659 RA1950rad 4.01109479 DE1950rad -0.77686644 PmRA2000 -0.0018
PmDE2000 -0.013
Hipparcos
Catalog H HIP 75264 Proxy H RAhms 15 22 40.89
DEdms -44 41 22.5 Vmag 3.37 VarFlag R Vmag G
RAdeg 230.67 DEdeg -44.6896 AstroRef * Plx 6.47
CCDM 15227-4441 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 180 Rho 0.266 HD 136504 BD
CD CD-4410066 CP CP-44 7342 Dm number -4410066 VIred -0.2
SpType B2IV-V R SpType Coord arcsec 2000 152240.89-444122.5
Hipparcos 2
HIP 75264 Sn 57 So 3 Nc 2
RArad 4.0259573134 DErad -0.7799801258 Plx 6.37 PmRA -22.86
PmDE -18.87 E RArad 0.49 E DErad 0.45 E Plx 0.7
E pmRA 0.67 E pmDE 0.59 Hpmag 3.3138 E Hpmag 0.0006
SHp 0.006 VA 0 BV -0.191 E BV 0.016
VI -0.2
CCDM
Ccdm 15227-4441 RComp Comp A Note1
Note2 Discov num DRAs -1.14 DDEs -22.0
R dRAs 10 Year Theta Rho
Obs 3 Vmag 4.0 Sp B3 PmNote *
PmRA -18 PmDE -16 Dm number -4410066 Cat1 CD
Name2 225712 Cat2 SAO HD 136504 M HD
ADS BDS M ADS BDS N IDS IDS 15159S4420A
HIC 75264
 
 
15227-4441 Ab
 
 
Coord arcsec 2000 152240.89-444122.5 Mag 5.1 Spectral class V Calc delta mag 1.5
Calc coord yes
 
 
15227-4441 B
 
 
Coord arcsec 2000 152240.89-444122.4 Mag 5.04 Spectral class V Calc delta mag 1.44
Calc coord yes
CCDM
Ccdm 15227-4441 RComp Comp B Note1
Note2 Discov num DRAs DDEs
R dRAs Year 1960 Theta 247 Rho 0.6
Obs 21 Vmag 5.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS IDS 15159S4420B
HIC 75264
 
 
15227-4441 C
 
 
Coord arcsec 2000 152241.26-444148.1 Mag 9.1 Spectral class V Calc delta mag 5.5
Calc coord yes
CCDM
Ccdm 15227-4441 RComp Comp C Note1
Note2 Discov num DUN 182 DRAs -0.57 DDEs -47.1
R dRAs 10 Year 1955 Theta 171 Rho 26.5
Obs 9 Vmag 9.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 15159S4420C
HIC
 
 
15227-4441 D
 
 
Coord arcsec 2000 152240.44-444200.8 Mag 16.2 Spectral class V Calc delta mag 12.6
Calc coord yes