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Doubles in session


Current system
10448-5934
SNA 18
HD 93250


Nearby doubles
2' : 10446-5933
TDS7449

2' : 10449-5933
NEL 2

5' : 10441-5935
HJ 4360AB

6' : 10440-5932
SEE 123

7' : 10440-5933
HJ 4356AB

7' : 10439-5933
COO 112AB

8' : 10451-5941
I 1092AB

9' : 10437-5935
HJ 4353

10' : 10442-5926
TDS7446

10' : 10458-5929
HJ 4369

10' : 10451-5943
NEL 4

11' : 10445-5944
SEE 513

11' : 10461-5934
HJ 4370

11' : 10446-5944
BSO 4AB

11' : 10452-5944
WSI 56

12' : 10453-5945
COO 113

12' : 10451-5945
NEL 3

13' : 10457-5924
SNA 19

13' : 10447-5921
HJ 4364AB

15' : 10466-5933
HJ 4371

15' : 10464-5927
I 1093

16' : 10432-5944
HJ 4350

18' : 10443-5917
FIN 168

19' : 10462-5919
R 156

20' : 10440-5952
HJ 4357AB

20' : 10461-5951
JSP 431



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.

10448-5934 SNA 18 (HD 93250)

 
 
10h 44m 45.04s -59° 33' 54.7" P.A. 22.00 sep 0.0 mag 7.40,7.60 Sp O7.5V+B0V dist. 1886.79 pc (6154.71 l.y.)
 
 
Coord 2000 10448-5934 Discov num SNA  18 Comp Coord arcsec 2000 10 44 45.04 -59 33 54.7
Date first 2010 Date last 2016 Obs 16
Pa first 75 Pa last 21.5 P.A. Now (θ) 21.5°
Sep first 0.0 Sep last 0.001 Sep. Now (ρ) 0.001"
Mag pri 7.40 Mag sec 7.60 delta mag (ΔM) 0.2 Spectral class O7.5V+B0V (blue/blue-white)
Pri motion ra -008 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.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 93250 Constellation Carina SAO 238423 HIP 52558
Tycho2 8626-02075-1 Gaia DR2 5350383460949215232 HD 93250 GC 14791
CD CD-58 3537 CP CP-58 2661 Distance 1886.79 Distance ly 6154.71
 
 
ORBITAL ELEMENTS
 
 
Period (P)194.31d± 0.39 Periastron (T)54857.7d (2009.071y)± 5.4 Semi-major axis (a)1.224m± 0.028
Eccentricity (e)0.217± 0.011 Inclination (i)22°± 41 Longitude of periastron (ω)171°± 24
Node (Ω)59°± 20 Notes ReferenceLeB2017
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 203.5 0.001
2001-01-01 143.8 0.001
2002-01-01 101.1 0.001
2003-01-01 70.4 0.001
2004-01-01 43.6 0.001
2005-01-01 14.7 0.001
2006-01-01 337.3 0.001
2007-01-01 285.7 0.001
2008-01-01 223.6 0.001
2009-01-01 160.8 0.001
2010-01-01 112.6 0.001
2011-01-01 79.2 0.001
2012-01-01 51.9 0.001
2013-01-01 24.3 0.001
2014-01-01 350.3 0.001
2015-01-01 303.3 0.001
2016-01-01 243.6 0.001
2017-01-01 179.5 0.001
2018-01-01 125.7 0.001
2019-01-01 88.6 0.001
2020-01-01 60.2 0.001
2021-01-01 33.2 0.001
2022-01-01 2.0 0.001
2023-01-01 319.6 0.001
2024-01-01 263.0 0.001
2025-01-01 199.3 0.001
2026-01-01 140.4 0.001
2027-01-01 98.8 0.001
2028-01-01 68.6 0.001
2029-01-01 41.8 0.001
2030-01-01 12.6 0.001


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


 
  


wds10448-5934a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 10448-5934 SNA 18 (HD 93250) : NOTES
 
 
discov_num notes refcode
SNA 18 A long-period binary, discussed in Sana et al. (2011). This pair is Sna2011b
one of the tightest resolved binaries in our sample and a non-thermal
radio emitter. Sna2014
 
 
REFERENCES
 
 
refcode metd author reference
LeB2017 orb j Le Bouquin, J.-B., Sana, H., Gosset, E., De Becker, M., Duvert, G., Absil, O., 2017A&A...601A...34
LeB2017 +Kv Anthonioz, F., Berger, J.-P., Ertel, S., Grellmann, R., Guieu, S., Kervella, P.,
LeB2017 Rabus, M., & Willson, M.
LeB2017 A&A 601, A34, 2017
Sna2011b not - Sana, H., LeBouquin, J.-B., DeBecker, M., Berger, J., de Koter, A., & Merand, A. 2011ApJ...740L..43S
Sna2011b ApJ 740, L43
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)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10448-5934 SNA 18 2013 1 53 0.0 7.40 7.60 O4III V K 104445.04-593354.7
10448-5934 SNA 18 2016 16 22 0.0 7.40 7.60 O7.5V+B0V NV K 104445.04-593354.7

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

 
 
WDS 10448-5934 SNA 18 (HD 93250) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 10448-5934 SNA 18 (HD 93250) : MEASURES
 
 
No records found.

 
 
WDS 10448-5934 (HD 93250) : VIRTUAL EYEPIECE
 
 

10448-5934 SNA 18A mag 7.4 Sp O7.5V 10448-5934 SNA 18B mag 7.6 Sp B0V 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 10448-5934 (HD 93250) : ALADIN DSS IMAGE @ 10h 44m 45.04s -59° 33' 54.7"
 
 
 
 
WDS 10448-5934 SNA 18 (HD 93250) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

10448-5934 SNA 18 distance=1' 10446-5933 TDS7449 distance=2' 10449-5933 NEL 2 distance=2' 10441-5935 HJ 4360AB distance=5' 10441-5935 HJ 4360AC distance=5' 10441-5935 HJ 4360AE distance=5' 10441-5935 FIN 412CD distance=5' 10441-5935 SNA 14Ca,Cb distance=5' 10441-5935 SNA 14Ca,Cc distance=5' 10441-5935 SNA 14Ca,Cd distance=5' 10440-5932 SEE 123 distance=6' 10440-5933 HJ 4356BD distance=7' 10440-5933 NEL 1Aa,Ab distance=7' 10440-5933 HJ 4356AB distance=7' 10440-5933 HJ 4356AC distance=7' 10440-5933 SNA 12AE distance=7' 10440-5933 SNA 12AF distance=7' 10440-5933 SNA 12AG distance=7' 10439-5933 COO 112AB distance=7' 10439-5933 SNA 11AC distance=7' 10451-5941 NEL 5Ha,Hb distance=7' 10451-5941 B 2256Aa,Ab distance=8' 10451-5941 WGT 2Aa,Ac distance=8' 10451-5941 WGT 2Aa,Ad distance=8' 10451-5941 WGT 2Aa,Ae distance=8' 10451-5941 I 1092AB distance=8' 10451-5941 I 1092AC distance=8' 10451-5941 I 1092AD distance=8' 10451-5941 HJ 4366AE distance=8' 10451-5941 HJ 4366AF distance=8' 10451-5941 HJ 4366AG distance=8' 10451-5941 DUN 98AH distance=8' 10451-5941 B 2256AQ distance=8' 10451-5941 B 2256AS distance=8' 10451-5941 I 1092AU distance=8' 10451-5941 IPI 1AV distance=8' 10437-5935 HJ 4353 distance=9' 10442-5926 TDS7446 distance=10' 10458-5929 HJ 4369 distance=10' 10451-5943 NEL 4 distance=10' 10445-5944 SEE 513 distance=11' 10461-5934 HJ 4370 distance=11' 10446-5944 BSO 4AB distance=11' 10446-5944 SNA 16AC distance=11' 10452-5944 WSI 56 distance=11' 10453-5945 COO 113 distance=12' 10451-5945 NEL 3 distance=12' 10457-5924 SNA 19 distance=13' 10447-5921 HJ 4364AB distance=13' 10447-5921 HJ 4364AC distance=13' 10466-5933 HJ 4371 distance=15' 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 10448-5934 SNA 18 22 0.0 1
Show 10446-5933 TDS7449 302 2.3 2
Show 10449-5933 NEL 2 15 0.4 2
Show 10441-5935 HJ 4360 AB 116 2.0 5
Show 10441-5935 HJ 4360 AC 288 12.6 5
Show 10441-5935 HJ 4360 AE 102 8.7 5
Show 10441-5935 FIN 412 CD 297 3.7 5
Show 10441-5935 SNA 14 Ca,Cb 139 0.0 5
Show 10441-5935 SNA 14 Ca,Cc 5 0.0 5
Show 10441-5935 SNA 14 Ca,Cd 89 0.8 5
Show 10440-5932 SEE 123 307 3.9 6
Show 10440-5933 HJ 4356 BD 185 3.9 7
Show 10440-5933 NEL 1 Aa,Ab 6 0.0 7
Show 10440-5933 HJ 4356 AB 149 2.8 7
Show 10440-5933 HJ 4356 AC 270 4.9 7
Show 10440-5933 SNA 12 AE 190 1.9 7
Show 10440-5933 SNA 12 AF 8 3.7 7
Show 10440-5933 SNA 12 AG 337 5.1 7
Show 10439-5933 COO 112 AB 240 6.5 7
Show 10439-5933 SNA 11 AC 184 5.6 7
Show 10451-5941 NEL 5 Ha,Hb 80 0.0 7
Show 10451-5941 B 2256 Aa,Ab 194 0.2 8
Show 10451-5941 WGT 2 Aa,Ac 118 0.2 8
Show 10451-5941 WGT 2 Aa,Ad 155 0.2 8
Show 10451-5941 WGT 2 Aa,Ae 161 0.1 8
Show 10451-5941 I 1092 AB 317 1.6 8
Show 10451-5941 I 1092 AC 63 1.2 8
Show 10451-5941 I 1092 AD 306 4.4 8
Show 10451-5941 HJ 4366 AE 60 13.8 8
Show 10451-5941 HJ 4366 AF 41 14.0 8
Show 10451-5941 HJ 4366 AG 68 38.3 8
Show 10451-5941 DUN 98 AH 17 60.8 8
Show 10451-5941 B 2256 AQ 175 2.6 8
Show 10451-5941 B 2256 AS 108 4.9 8
Show 10451-5941 I 1092 AU 141 4.0 8
Show 10451-5941 IPI 1 AV 61 20.0 8
Show 10437-5935 HJ 4353 181 5.0 9
Show 10442-5926 TDS7446 6 0.7 10
Show 10458-5929 HJ 4369 41 14.2 10
Show 10451-5943 NEL 4 203 0.1 10
Show 10445-5944 SEE 513 94 6.0 11
Show 10461-5934 HJ 4370 208 25.8 11
Show 10446-5944 BSO 4 AB 214 18.8 11
Show 10446-5944 SNA 16 AC 270 3.7 11
Show 10452-5944 WSI 56 239 0.3 11
Show 10453-5945 COO 113 195 14.6 12
Show 10451-5945 NEL 3 82 0.0 12
Show 10457-5924 SNA 19 35 0.2 13
Show 10447-5921 HJ 4364 AB 353 7.9 13
Show 10447-5921 HJ 4364 AC 149 8.9 13
Show 10466-5933 HJ 4371 34 19.4 15

 
 
WDS 10448-5934 : COMPONENTS
 
 
  A
B pa=11.3°
sep=0.00"
 
 
10448-5934 A
 
 
Componente originario normalizzato AB Name HD 93250 Coord arcsec 2000 104445.04-593354.7 Mag 7.4
Spectral class O7.5V (blue) PmRA -8.00 PmDE 3.0 SAO 238423
HIP 52558 Tycho2 8626-02075-1 HD 93250 GC 14791
CD CD-58 3537 CP CP-58 2661
Tycho2
Tycho2 8626-02075-1 Pflag RAmdeg 161.18761485 DEmdeg -59.56518494
PmRA -7.7 PmDE 3.6 E RAmdeg 5 E DEmdeg 5
E pmRA 1.4 E pmDE 1.4 EpRAm 1991.25 EpDEm 1991.30
Num 11 Q RAmdeg 0.6 Q DEmdeg 0.6 Q pmRA 0.6
Q pmDE 0.7 BTmag 7.541 E BTmag 0.016 VTmag 7.408
E VTmag 0.011 Prox 651 TYC T HIP 52558
CCDM RAdeg 161.18764944 DEdeg -59.56519306 EpRA 1990 1.67
EpDE 1990 1.74 E RAdeg 4.5 E DEdeg 4.8 Posflg
Corr -0.1
SAO
SAO 238423 DelFlag RA1950 PmRA1950 0
DE1950 PmDE1950 -0.002 Vmag 7.6 SpType B
Double code Source 70 CatNum 14791 DM CP-58 2661
DMcomp BDsup HD 93250 M HD 0
GC 14791 RA1950rad 2.80477279 DE1950rad -1.03501496 PmRA2000 -0.0003
PmDE2000 0.001
Hipparcos
Catalog H HIP 52558 Proxy RAhms 10 44 45.04
DEdms -59 33 54.7 Vmag 7.35 VarFlag R Vmag H
RAdeg 161.188 DEdeg -59.5652 AstroRef Plx 0.29
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 93250 BD
CD CD-58 3537 CP CP-58 2661 Dm number -58 3537 VIred 0.37
SpType O5 R SpType Coord arcsec 2000 104445.04-593354.7
Hipparcos 2
HIP 52558 Sn 5 So 0 Nc 1
RArad 2.8132551804 DErad -1.0396088068 Plx 0.53 PmRA -8.15
PmDE 2.86 E RArad 0.36 E DErad 0.34 E Plx 0.42
E pmRA 0.46 E pmDE 0.36 Hpmag 7.4032 E Hpmag 0.0011
SHp 0.009 VA 0 BV 0.145 E BV 0.016
VI 0.16
 
 
10448-5934 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 104445.04-593354.7 Mag 7.6 Spectral class B0V (blue-white)
Calc delta mag 0.2 Calc coord yes