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Current system
15169-6057
SNA 39 Aab,c


Nearby doubles
5' : 15166-6054
B 1777AB

10' : 15170-6107
COO 182

31' : 15188-6030
I 370AB

32' : 15151-6126
B 1776

32' : 15140-6121
I 329AB

37' : 15182-6022
HRG 113

40' : 15194-6023
RSS 371

43' : 15134-6024
VVV 29

46' : 15128-6024
HJ 4735

51' : 15239-6055
RST5016

53' : 15107-6125
MOC 8AB

56' : 15236-6032
LPO 51

56' : 15228-6022
RST5014AB

61' : 15093-6034
TDS9420

66' : 15183-5953
TDS9474

66' : 15258-6113
TDS9514

67' : 15079-6108
HDS2130

67' : 15129-5958
TDS9451

69' : 15150-5951
HDS2142

70' : 15171-5948
I 9003

71' : 15147-5949
COO 180

71' : 15258-6126
TDS9515

75' : 15267-6037
RSS 374

75' : 15246-6008
RST5018

76' : 15249-6146
RST5019

83' : 15073-6142
LPO 50



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.

15169-6057 SNA 39 Aab,c

 
 
15h 16m 56.90s -60° 57' 26.1" P.A. 132.00 sep 0.0 mag 5.40,7.20 Sp O7IV+B dist. 1123.6 pc (3665.18 l.y.)
 
 
Coord 2000 15169-6057 Discov num SNA  39 Comp Aab,c Coord arcsec 2000 15 16 56.90 -60 57 26.1
Date first 2012 Date last 2012 Obs 1
Pa first 132 Pa last 131.9 P.A. Now (θ) 131.9°
Sep first 0.0 Sep last 0.004 Sep. Now (ρ) 0.004"
Mag pri 5.40 Mag sec 7.20 delta mag (ΔM) 1.8 Spectral class O7IV+B (blue/blue-white)
Pri motion ra -002 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes N V K (See Notes, Proper motion indicates 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 physical.
 
 
15169-6057 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 253084 15 16 57 -60 57 26 SNA 39 Aab,c 2012 1 132 0.0 5.40 7.20 1.80 <===
Show Del Cir 253084 15 16 57 -60 57 26 HDO 245 AB 2016 7 279 53.9 5.07 12.87 7.80
Quadruple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV6998 Cir Constellation Circinus SAO 253084 HIP 74778
Tycho2 9021-02243-1 Gaia DR2 5875491419647525248 HD 135240 HR 5664
GC 20507 CD CD-60 5539 CP CP-60 5701 Bayer Delta Circini
Bayer name Del Cir Distance 1123.6 Distance ly 3665.18 Bayer greek δ Cir
 
 
WDS 15169-6057 SNA 39 Aab,c : NOTES
 
 
discov_num notes refcode
HDO 245 del Cir. A variable and spectroscopic binary.
Primary is eclipsing binary of Algol-type, period 3.90247d. Zas2014
This "field" object may belong to the "Pis 20" group of Mel'nik &
Efremov (1995 SvAL 21, 10). The secondary classification is an
estimate from Stickland et al. (1993). Stc1993
The Hipparcos Catalogue contains an eclipsing light curve. HIP1997a
Classification of the B component of the optical pair is from Lindroos Lnd1985
(1985). Lindroos also finds a distance of 750 pc to this system. Msn1998a
SNA 39 Aab,c: The primary is del Cir, an ellipsoidal variable star. Penny et
al. (2001) performed a tomographic decomposition and found del Cir to Pny2001
be a triple system, with an eclipsing inner Aa,Ab pair (3.9d, a sin i
= 11.44 Rsun) and a RV-stable Ac component. Mayer et al. (2014) MyP2014
established the hierarchical nature of the system, obtaining a 1644d
period for the outer system. PIONIER clearly resolved the outer system
as a 3.78mas pair. We did not detect the dV=7.8 B companion of Mason Msn1998a
et al. (1998), but it may be just below our detection limit. Sna2014
 
 
REFERENCES
 
 
refcode metd author reference
HIP1997a Hh - Hipparcos 1997yCat.1239....0E
HIP1997a Hipparcos Catalog, ESA SP-1200, 1997 (incl. Hp photometry, vol. 10)
Lnd1985 - Lindroos, K.P. 1985A&AS...60..183L
Lnd1985 A&AS 60, 183, 1985
Msn1998a Sc j Mason, B.D., Gies, D.R., Hartkopf, W.I., Bagnuolo, Jr., W.G., 1998AJ....115..821M
Msn1998a ten Brummelaar, T.A., & McAlister, H.A.
Msn1998a AJ 115, 821, 1998
MyP2014 not - Mayer, P., Harmanec, P., Sana, H., & LeBouquin, J. 2014AJ....148..114M
MyP2014 AJ 148, 114, 2014
Pny2001 not - Penny, L.R., Seyle, D., Gies, D.R., Harvin, J.A., Bagnuolo, W.G., Jr., 2001ApJ...548..889P
Pny2001 Thaller, M.L., Fullerton, A.W., & Kaper, L.
Pny2001 ApJ 548, 889, 2001
Sna2014 Kv j Sana, H., LeBouquin, J.-B., Lacour, S., Berger, J.-P., Duvert, G., Gauchet, L., 2014ApJS..215...15S
Sna2014 +A Norris, B., Olofsson, J., Pickel, D., Zins, G., Absil, O., de Koter, A.,
Sna2014 Kratter, K., Schnurr, O., & Zinnecker, H.
Sna2014 ApJS 215, 15, 2014
Sna2014 (NACO companions in Table 6 assumed physical if quoted probability of spurious
Sna2014 detection <10%, optical if >90%, otherwise indeterminate)
Stc1993 not - Stickland, D.J., Koch, R.H., Pachoulakis, I., & Pfeiffer, R.J. 1993Obs...113..204S
Stc1993 Observatory 113, 204, 1993
Zas2014 - Zasche, P. ...................
Zas2014 private communication, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 HDO Harvard Obs.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15169-6057 SNA 39 Aab,c 2012 1 132 0.0 5.40 7.20 O7.5V NV K 151656.90-605726.1

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

 
 
WDS 15169-6057 SNA 39 Aab,c : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15169-6057 SNA 39 Aab,c : MEASURES
 
 
No records found.

 
 
WDS 15169-6057 : VIRTUAL EYEPIECE
 
 

15169-6057 HDO 245A mag 5.07 Sp O7IV 15169-6057 SNA 39Aab mag 5.4 Sp O7IV 15169-6057 HDO 245B sep 27.1 P.A. 287.90 mag 12.87 15169-6057 SNA 39c mag 7.2 Sp B 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 15169-6057 : ALADIN DSS IMAGE @ 15h 16m 56.90s -60° 57' 26.1"
 
 
 
 
WDS 15169-6057 SNA 39 Aab,c : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15169-6057 SNA 39Aab,c distance=0' 15166-6054 B 1777AB distance=5' 15166-6054 I 428AC distance=5' 15170-6107 COO 182 distance=10' 15188-6030 I 370AB distance=31' 15188-6030 HDO 246AC distance=31' 15151-6126 B 1776 distance=32' 15140-6121 I 329AB distance=32' 15140-6121 I 329AC distance=32' 15182-6022 HRG 113 distance=37' 15194-6023 RSS 371 distance=40' 15134-6024 VVV 29 distance=43' 15128-6024 HJ 4735 distance=46' 15239-6055 RST5016 distance=51' 15107-6125 MOC 8AB distance=53' 15107-6125 MOC 8AC distance=53' 15107-6125 MOC 8AD distance=53' 15236-6032 LPO 51 distance=56' 15228-6022 RST5014AB distance=56' 15228-6022 COO 187AB,C distance=56' 15093-6034 TDS9420 distance=61' 15183-5953 TDS9474 distance=66' 15258-6113 TDS9514 distance=66' 15079-6108 HDS2130 distance=67' 15129-5958 TDS9451 distance=67' 15150-5951 HDS2142 distance=69' 15171-5948 I 9003 distance=70' 15147-5949 COO 180 distance=71' 15258-6126 TDS9515 distance=71' 15267-6037 RSS 374 distance=75' 15246-6008 RST5018 distance=75' 15249-6146 RST5019 distance=76' 15073-6142 LPO 50 distance=83' 15056-6110 B 1770 distance=84' 15256-6002 TDS 773 distance=85' 15281-6124 TDS9525 distance=86' 15231-5946 RST5015 distance=86' 15161-6223 B 2032 distance=86' 15105-6212 RST5013 distance=88' 15083-5957 RSS 24 distance=89' 15050-6045 B 2346 distance=89' 15059-6142 CPO 411 distance=91' 15246-6211 TDS9510 distance=92' 15049-6024 JSP 648 distance=96' 15262-5950 NZO 55 distance=97' 15294-6022 RST5021 distance=99' 15244-5931 RST5017 distance=103' 15112-5924 HRG 105 distance=103' 15252-5934 RST5020 distance=104' 15060-6207 TDS 767 distance=105' 15226-6234 B 1779 distance=105' 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 15169-6057 HDO 245 AB 279 53.9
Show 15169-6057 SNA 39 Aab,c 132 0.0
Show 15166-6054 B 1777 AB 164 1.2 5
Show 15166-6054 I 428 AC 22 26.9 5
Show 15170-6107 COO 182 76 8.0 10
Show 15188-6030 I 370 AB 112 5.5 31
Show 15188-6030 HDO 246 AC 243 43.6 31
Show 15151-6126 B 1776 125 1.1 32
Show 15140-6121 I 329 AB 346 1.0 32
Show 15140-6121 I 329 AC 298 44.9 32
Show 15182-6022 HRG 113 340 2.8 37
Show 15194-6023 RSS 371 188 17.7 40
Show 15134-6024 VVV 29 319 8.8 43
Show 15128-6024 HJ 4735 33 7.1 46
Show 15239-6055 RST5016 20 2.4 51
Show 15107-6125 MOC 8 AB 278 2.6 53
Show 15107-6125 MOC 8 AC 288 3.5 53
Show 15107-6125 MOC 8 AD 204 4.3 53
Show 15236-6032 LPO 51 69 8.3 56
Show 15228-6022 RST5014 AB 284 0.8 56
Show 15228-6022 COO 187 AB,C 52 11.2 56
Show 15093-6034 TDS9420 88 1.3 61
Show 15183-5953 TDS9474 204 0.6 66
Show 15258-6113 TDS9514 83 0.9 66
Show 15079-6108 HDS2130 155 0.2 67
Show 15129-5958 TDS9451 234 2.6 67
Show 15150-5951 HDS2142 14 0.4 69
Show 15171-5948 I 9003 59 0.5 70
Show 15147-5949 COO 180 288 12.2 71
Show 15258-6126 TDS9515 174 0.7 71
Show 15267-6037 RSS 374 321 9.7 75
Show 15246-6008 RST5018 58 1.6 75
Show 15249-6146 RST5019 49 2.4 76
Show 15073-6142 LPO 50 292 4.7 83
Show 15056-6110 B 1770 118 2.7 84
Show 15256-6002 TDS 773 265 1.8 85
Show 15281-6124 TDS9525 327 0.6 86
Show 15231-5946 RST5015 115 1.2 86
Show 15161-6223 B 2032 326 0.8 86
Show 15105-6212 RST5013 59 4.0 88
Show 15083-5957 RSS 24 178 47.6 89
Show 15050-6045 B 2346 73 6.2 89
Show 15059-6142 CPO 411 173 12.5 91
Show 15246-6211 TDS9510 276 0.6 92
Show 15049-6024 JSP 648 294 3.9 96
Show 15262-5950 NZO 55 184 6.5 97
Show 15294-6022 RST5021 271 1.5 99
Show 15244-5931 RST5017 306 1.2 103
Show 15112-5924 HRG 105 26 13.7 103
Show 15252-5934 RST5020 269 10.1 104
Show 15060-6207 TDS 767 129 1.1 105

 
 
WDS 15169-6057 : COMPONENTS
 
 
  A Aab B
Aab pa=0.0°
sep=0.00"
 
B pa=287.9°
sep=27.15"
pa=287.9°
sep=27.15"
 
c pa=151.6°
sep=0.00"
pa=151.6°
sep=0.00"
pa=107.9°
sep=27.15"
 
 
15169-6057 A
 
 
Name Del Cir Coord arcsec 2000 151656.90-605726.1 Mag 5.07 Spectral class O7IV (blue)
PmRA -2.00 PmDE -3.0 SAO 253084 HIP 74778
Tycho2 9021-02243-1 HD 135240 HR 5664 GC 20507
CD CD-60 5539 CP CP-60 5701 Bayer Delta Circini Bayer name Del Cir
Tycho2
Tycho2 9021-02243-1 Pflag RAmdeg 229.23705765 DEmdeg -60.95725531
PmRA -3.7 PmDE -3.7 E RAmdeg 3 E DEmdeg 3
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.44 EpDEm 1991.50
Num 15 Q RAmdeg 0.7 Q DEmdeg 0.3 Q pmRA 0.5
Q pmDE 0.4 BTmag 4.956 E BTmag 0.014 VTmag 5.072
E VTmag 0.009 Prox 999 TYC T HIP 74778
CCDM RAdeg 229.23707556 DEdeg -60.95724694 EpRA 1990 1.64
EpDE 1990 1.69 E RAdeg 3.4 E DEdeg 3.4 Posflg
Corr 0.0
SAO
SAO 253084 DelFlag RA1950 PmRA1950 -0.0017
DE1950 PmDE1950 -0.012 Vmag 5.2 SpType Oe5
Double code Source 70 CatNum 20507 DM CP-60 5701
DMcomp BDsup HD 135240 M HD 0
GC 20507 RA1950rad 3.98320465 DE1950rad -1.06069952 PmRA2000 -0.0026
PmDE2000 -0.009
Hipparcos
Catalog H HIP 74778 Proxy RAhms 15 16 56.90
DEdms -60 57 26.1 Vmag 5.04 VarFlag 2 R Vmag G
RAdeg 229.237 DEdeg -60.9572 AstroRef Plx 0.51
CCDM 15169-6057 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 135240 BD
CD CD-60 5539 CP CP-60 5701 Dm number -60 5539 VIred -0.06
SpType O8.5V R SpType Coord arcsec 2000 151656.90-605726.1
Hipparcos 2
HIP 74778 Sn 5 So 0 Nc 1
RArad 4.0009417545 DErad -1.0639046205 Plx 0.89 PmRA -1.9
PmDE -3.06 E RArad 0.22 E DErad 0.21 E Plx 0.3
E pmRA 0.26 E pmDE 0.25 Hpmag 5.0377 E Hpmag 0.0016
SHp 0.062 VA 1 BV -0.077 E BV 0.003
VI -0.06
CCDM
Ccdm 15169-6057 RComp Comp A Note1
Note2 Discov num DRAs 2.75 DDEs -26.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.2 Sp O8 PmNote *
PmRA -13 PmDE -11 Dm number -60 5701 Cat1 CPD
Name2 253084 Cat2 SAO HD 135240 M HD
ADS BDS M ADS BDS N IDS IDS 15089S6035A
HIC 74778
 
 
15169-6057 Aab
 
 
Coord arcsec 2000 151656.90-605726.1 Mag 5.4 Spectral class O7IV (blue) PmRA -2.00
PmDE -3.0 Dm number -60 5701 Calc delta mag 0.33
 
 
15169-6057 B
 
 
Coord arcsec 2000 151653.35-605717.8 Mag 12.87 PmRA 23.00 PmDE -8.0
Calc delta mag 7.8 Calc coord yes
CCDM
Ccdm 15169-6057 RComp Comp B Note1
Note2 Discov num HDO 245 DRAs DDEs
R dRAs Year Theta 270 Rho 50.0
Obs Vmag 13.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 15089S6035B
HIC
 
 
15169-6057 c
 
 
Coord arcsec 2000 151656.90-605726.1 Mag 7.2 Spectral class B (blue-white) Dm number -60 5701
Calc delta mag 2.13 Calc coord yes