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Doubles in session


Current system
04215-2544
BU 744 AB


Nearby doubles
32' : 04237-2535
UC 1158

34' : 04228-2515
TDS2838

34' : 04199-2518
TDS2823

47' : 04202-2626
SPM 10AB

47' : 04209-2629
SKF1287AB

55' : 04252-2521
UC 1166

56' : 04179-2517
TDS2811

56' : 04248-2618
TDS2843

59' : 04236-2635
TDS2841

70' : 04189-2644
B 2569AB

71' : 04164-2531
KPP2832

73' : 04168-2617
TDS2805

73' : 04207-2432
TDS2829

85' : 04267-2457
TDS2849

87' : 04215-2418
UC 1152

90' : 04167-2646
SKF1285

101' : 04237-2408
RST2346

104' : 04169-2706
TDS2807

105' : 04289-2512
B 69AB

107' : 04137-2534
TDS2790

108' : 04275-2655
RST1274

108' : 04136-2532
SEE 34

110' : 04135-2554
LDS3564

110' : 04148-2444
TDS2798

112' : 04275-2427
I 413

113' : 04139-2500
BRT2853



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.

04215-2544 BU 744 AB

 
 
04h 21m 31.29s -25° 43' 42.4" P.A. 243.00 sep 0.5 mag 7.26,6.56 Sp F2V dist. 58.75 pc (191.64 l.y.)
 
 
Coord 2000 04215-2544 Discov num BU  744 Comp AB Coord arcsec 2000 04 21 31.29 -25 43 42.4
Date first 1879 Date last 2021 Obs 106
Pa first 290 Pa last 242.8 P.A. Now (θ) 246.3°
Sep first 0.6 Sep last 0.479 Sep. Now (ρ) 0.5"
Mag pri 7.26 Mag sec 6.56 delta mag (ΔM) 0.7 Spectral class F2V (yellow-white)
Pri motion ra +048 Sec motion ra +048
Pri motion dec -053 Sec motion dec -053
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
04215-2544 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 169368 04 21 31 -25 43 42 BU 744 AB 2021 106 243 0.5 7.26 6.56 0.70 Y <===
Show 169368 04 21 31 -25 43 42 HJ 3644 AB,C 2015 8 1 41.1 6.15 12.80 6.65
Show NSV1574 169368 04 21 31 -25 43 42 HJ 3644 AB,D 2020 22 41 43.7 6.15 8.23 2.08
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV1574 Constellation Eridanus SAO 169368 HIP 20347
Tycho2 6460-03129-1 HD 27710 HR 1374 GC 5290
ADS 3159 CD CD-26 1642 CP CP-26 520 Distance 58.75
Distance ly 191.64
 
 
ORBITAL ELEMENTS
 
 
Period (P)81.025y Periastron (T)1924.014y Semi-major axis (a)0.48a
Eccentricity (e)0.59 Inclination (i)32.65° Longitude of periastron (ω)110.93°
Node (Ω)356.65° Notesn ReferenceSca1991c
Equinox2000 Last observation1989 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 22.2 0.277
2001 32.4 0.245
2002 45.8 0.213
2003 63.4 0.186
2004 85.6 0.170
2005 110.1 0.170
2006 132.7 0.184
2007 151.0 0.207
2008 165.4 0.233
2009 177.0 0.259
2010 186.4 0.284
2011 194.4 0.307
2012 201.3 0.328
2013 207.4 0.348
2014 212.8 0.367
2015 217.8 0.385
2016 222.3 0.401
2017 226.4 0.417
2018 230.3 0.433
2019 233.9 0.447
2020 237.2 0.461
2021 240.4 0.475
2022 243.4 0.487
2023 246.3 0.500
2024 249.0 0.511
2025 251.6 0.523
2026 254.1 0.534
2027 256.5 0.544
2028 258.8 0.554
2029 261.0 0.564
2030 263.2 0.573


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


 
  


wds04215-2544a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 04215-2544 BU 744 AB : NOTES
 
 
discov_num notes refcode
BU 744 Star A is SB1, P = 4.0 d, tho this may be spurious, Wor1983
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 3.42 +/- 1.00, 2.96, and 1.35 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Sca1991c orb - Scardia, M. 1991IAUDS.114....1S
Sca1991c Inf. Circ. 114, 1, 1991
Wor1983 - Worley, C.E. & Heintz, W.D. 1983PUSNO..24g...1W
Wor1983 Pub. USNO 24, Pt. 7, 1983 (Fourth Orbit Catalog)
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 HJ Herschel, J.F.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04215-2544 BU 744 AB 2006 101 145 0.2 7.26 6.56 F2V NOD 042131.29-254342.4
04215-2544 BU 744 AB 2008 102 179 0.3 7.26 6.56 F2V NOD 042131.29-254342.4
04215-2544 BU 744 AB 2010 103 190 0.3 7.26 6.56 F2V NOD 042131.29-254342.4
04215-2544 BU 744 AB 2011 104 197 0.3 7.26 6.56 F2V NOD 042131.29-254342.4
04215-2544 BU 744 AB 2018 105 231 0.4 7.26 6.56 F2V NO 042131.29-254342.4
04215-2544 BU 744 AB 2021 106 243 0.5 7.26 6.56 F2V NO 042131.29-254342.4

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

 
 
WDS 04215-2544 BU 744 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04215-2544 BU 744 AB : MEASURES
 
 
No records found.

 
 
WDS 04215-2544 : VIRTUAL EYEPIECE
 
 

04215-2544 BU 744A mag 7.26 Sp F2V 04215-2544 BU 744B sep 0.4 P.A. 240.30 mag 6.56 04215-2544 HJ 3644C sep 41.1 P.A. 0.50 mag 12.8 04215-2544 HJ 3644D sep 41.9 P.A. 37.80 mag 8.23 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 04215-2544 : ALADIN DSS IMAGE @ 04h 21m 31.29s -25° 43' 42.4"
 
 
 
 
WDS 04215-2544 BU 744 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04215-2544 BU 744AB distance=0' 04237-2535 UC 1158 distance=32' 04228-2515 TDS2838 distance=34' 04199-2518 TDS2823 distance=34' 04202-2626 SPM 10Aa,Ab distance=47' 04202-2626 SPM 10AB distance=47' 04209-2629 SKF1287AB distance=47' 04252-2521 UC 1166 distance=55' 04179-2517 TDS2811 distance=56' 04248-2618 TDS2843 distance=56' 04236-2635 TDS2841 distance=59' 04189-2644 B 2569AB distance=70' 04189-2644 HJ 3637AC distance=70' 04164-2531 KPP2832 distance=71' 04168-2617 TDS2805 distance=73' 04207-2432 TDS2829 distance=73' 04267-2457 TDS2849 distance=85' 04215-2418 UC 1152 distance=87' 04167-2646 SKF1285 distance=90' 04237-2408 RST2346 distance=101' 04169-2706 TDS2807 distance=104' 04289-2512 B 69AB distance=105' 04289-2512 STN 8AC distance=105' 04137-2534 TDS2790 distance=107' 04275-2655 RST1274 distance=108' 04136-2532 SEE 34 distance=108' 04135-2554 LDS3564 distance=110' 04148-2444 TDS2798 distance=110' 04275-2427 I 413 distance=112' 04139-2500 BRT2853 distance=113' 04155-2708 RST1268 distance=117' 04194-2350 BRT2833 distance=118' 04305-2538 AOT 14 distance=123' 04169-2358 RST2339 distance=123' 04269-2405 BU 311 distance=124' 04184-2347 RST2344 distance=124' 04127-2621 NSC 18 distance=126' 04160-2400 B 64 distance=128' 04314-2544 AOT 15 distance=134' 04146-2719 TDS2796 distance=134' 04117-2603 LDS 112 distance=136' 04308-2454 KPP3573AC distance=136' 04310-2459 SEE 37 distance=137' 04255-2749 B 66 distance=137' 04188-2332 BRT1375 distance=137' 04253-2755 B 65 distance=142' 04318-2617 KPP2056 distance=142' 04118-2444 RST2335AB distance=145' 04118-2444 DAM1312Aa,Ab distance=145' 04107-2526 SKF2466AB distance=148' 04107-2506 SKF2467 distance=151' 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 04215-2544 BU 744 AB 243 0.5
Show 04215-2544 HJ 3644 AB,C 1 41.1
Show 04215-2544 HJ 3644 AB,D 41 43.7
Show 04237-2535 UC 1158 200 44.7 32
Show 04228-2515 TDS2838 153 0.4 34
Show 04199-2518 TDS2823 268 0.9 34
Show 04202-2626 SPM 10 Aa,Ab 272 2.4 47
Show 04202-2626 SPM 10 AB 150 25.8 47
Show 04209-2629 SKF1287 AB 98 85.8 47
Show 04252-2521 UC 1166 153 38.9 55
Show 04179-2517 TDS2811 166 0.5 56
Show 04248-2618 TDS2843 159 1.4 56
Show 04236-2635 TDS2841 269 1.3 59
Show 04189-2644 B 2569 AB 264 13.9 70
Show 04189-2644 HJ 3637 AC 219 29.3 70
Show 04164-2531 KPP2832 321 5.0 71
Show 04168-2617 TDS2805 244 0.5 73
Show 04207-2432 TDS2829 212 0.7 73
Show 04267-2457 TDS2849 31 1.3 85
Show 04215-2418 UC 1152 149 19.7 87
Show 04167-2646 SKF1285 146 28.2 90
Show 04237-2408 RST2346 111 1.9 101
Show 04169-2706 TDS2807 299 0.5 104
Show 04289-2512 B 69 AB 352 2.6 105
Show 04289-2512 STN 8 AC 352 7.1 105
Show 04137-2534 TDS2790 359 2.2 107
Show 04275-2655 RST1274 106 1.5 108
Show 04136-2532 SEE 34 63 15.5 108
Show 04135-2554 LDS3564 165 76.4 110
Show 04148-2444 TDS2798 184 1.1 110
Show 04275-2427 I 413 331 0.7 112
Show 04139-2500 BRT2853 170 2.9 113
Show 04155-2708 RST1268 278 1.0 117
Show 04194-2350 BRT2833 114 4.0 118
Show 04305-2538 AOT 14 16 5.6 123
Show 04169-2358 RST2339 83 1.0 123
Show 04269-2405 BU 311 168 0.4 124
Show 04184-2347 RST2344 160 2.1 124
Show 04127-2621 NSC 18 36 2.6 126
Show 04160-2400 B 64 228 3.7 128
Show 04314-2544 AOT 15 75 12.8 134
Show 04146-2719 TDS2796 180 0.4 134
Show 04117-2603 LDS 112 292 58.8 136
Show 04308-2454 KPP3573 AC 123 4.5 136
Show 04310-2459 SEE 37 33 13.2 137
Show 04255-2749 B 66 177 2.4 137
Show 04188-2332 BRT1375 116 5.3 137
Show 04253-2755 B 65 251 4.5 142
Show 04318-2617 KPP2056 99 16.5 142
Show 04118-2444 RST2335 AB 248 3.2 145
Show 04118-2444 DAM1312 Aa,Ab 74 0.1 145

 
 
WDS 04215-2544 : COMPONENTS
 
 
  A B C
B pa=240.3°
sep=0.44"
 
C pa=0.5°
sep=41.08"
pa=1.0°
sep=41.30"
 
D pa=37.8°
sep=41.88"
pa=38.0°
sep=42.29"
pa=107.5°
sep=26.56"
 
 
04215-2544 A
 
 
Coord arcsec 2000 042131.29-254342.4 Mag 7.26 Spectral class F2V (yellow-white) PmRA 48.00
PmDE -53.0 SAO 169368 HIP 20347 HD 27710
HR 1374 GC 5290 CD CD-26 1642 CP CP-26 520
SAO
SAO 169368 DelFlag RA1950 PmRA1950 0.0032
DE1950 PmDE1950 -0.049 Vmag 5.9 SpType F0
Double code Source 70 CatNum 5290 DM CD-26 1642
DMcomp BDsup HD 27710 M HD 0
GC 5290 RA1950rad 1.13204111 DE1950rad -0.45107844 PmRA2000 0.0035
PmDE2000 -0.05
Hipparcos
Catalog H HIP 20347 Proxy H RAhms 04 21 31.29
DEdms -25 43 42.4 Vmag 6.08 VarFlag R Vmag H
RAdeg 65.3804 DEdeg -25.7285 AstroRef A Plx 18.4
CCDM 04215-2544 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 340 Rho 0.494 HD 27710 BD
CD CD-26 1642 CP CP-26 520 Dm number -26 1642 VIred 0.42
SpType F2V R SpType Coord arcsec 2000 042131.29-254342.4
Hipparcos 2
HIP 20347 Sn 17 So 3 Nc 2
RArad 1.141102912 DErad -0.4490462969 Plx 17.02 PmRA 30.08
PmDE -48.82 E RArad 0.3 E DErad 0.57 E Plx 0.65
E pmRA 0.4 E pmDE 0.81 Hpmag 6.1666 E Hpmag 0.0008
SHp 0.009 VA 0 BV 0.371 E BV 0.003
VI 0.43
CCDM
Ccdm 04215-2544 RComp Comp A Note1
Note2 Discov num DRAs 1.32 DDEs 17.2
R dRAs 10 Year Theta Rho
Obs 4 Vmag 6.5 Sp F0 PmNote *
PmRA 46 PmDE -54 Dm number -26 1642 Cat1 CD
Name2 169368 Cat2 SAO HD 27710 M HD
ADS BDS A 3159 M ADS BDS N IDS IDS 04174S2558A
HIC 20347
 
 
04215-2544 B
 
 
Coord arcsec 2000 042131.26-254342.6 Mag 6.56 PmRA 48.00 PmDE -53.0
Tycho2 6460-03129-1 Calc delta mag 0.7 Calc coord yes
Tycho2
Tycho2 6460-03129-1 Pflag RAmdeg 65.38048801 DEmdeg -25.72852981
PmRA 48.4 PmDE -52.6 E RAmdeg 3 E DEmdeg 3
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.61 EpDEm 1991.65
Num 15 Q RAmdeg 1.7 Q DEmdeg 2.0 Q pmRA 1.7
Q pmDE 1.9 BTmag 6.522 E BTmag 0.014 VTmag 6.145
E VTmag 0.009 Prox 443 TYC T HIP 20347
CCDM AB RAdeg 65.38036667 DEdeg -25.72841139 EpRA 1990 1.86
EpDE 1990 1.89 E RAdeg 3.4 E DEdeg 3.3 Posflg P
Corr 0.3
CCDM
Ccdm 04215-2544 RComp Comp B Note1 *
Note2 Discov num BU 744 DRAs DDEs
R dRAs Year 1891 Theta Rho
Obs 99 Vmag 6.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 3159 M ADS BDS N IDS IDS 04174S2558B
HIC 20347
 
 
04215-2544 C
 
 
Coord arcsec 2000 042131.31-254301.3 Mag 12.8 PmRA 2.00 PmDE 10.0
Calc delta mag 5.54 Calc coord yes
CCDM
Ccdm 04215-2544 RComp Comp C Note1
Note2 Discov num HJ 3644 DRAs DDEs
R dRAs Year 1951 Theta 003 Rho 38.6
Obs 4 Vmag 12.0 Sp PmNote
PmRA 42 PmDE -58 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 3159 M ADS BDS N IDS IDS 04174S2558C
HIC
 
 
04215-2544 D
 
 
Coord arcsec 2000 042133.19-254309.3 Mag 8.23 PmRA 49.00 PmDE -56.0
Tycho2 6460-03130-1 Calc delta mag 0.97 Calc coord yes
Tycho2
Tycho2 6460-03130-1 Pflag RAmdeg 65.38946708 DEmdeg -25.71924725
PmRA 45.3 PmDE -53.5 E RAmdeg 5 E DEmdeg 5
E pmRA 1.4 E pmDE 1.4 EpRAm 1991.58 EpDEm 1991.64
Num 9 Q RAmdeg 1.2 Q DEmdeg 1.6 Q pmRA 1.2
Q pmDE 1.7 BTmag 8.826 E BTmag 0.016 VTmag 8.227
E VTmag 0.011 Prox 443 TYC T HIP
CCDM RAdeg 65.38935444 DEdeg -25.71912778 EpRA 1990 1.96
EpDE 1990 1.95 E RAdeg 5.2 E DEdeg 4.9 Posflg
Corr 0.4
CCDM
Ccdm 04215-2544 RComp Comp D Note1
Note2 Discov num HJ 3644 DRAs 3.40 DDEs 56.3
R dRAs 10 Year 1891 Theta 041 Rho 44.5
Obs 6 Vmag 8.6 Sp PmNote *
PmRA 34 PmDE -61 Dm number -26 1643 Cat1 CD
Name2 169369 Cat2 SAO HD M HD
ADS BDS A 3159 M ADS BDS N IDS IDS 04174S2558D
HIC