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Doubles in session


Current system
04269-2405
BU 311
HD 28312


Nearby doubles
24' : 04275-2427
I 413

46' : 04237-2408
RST2346

53' : 04267-2457
TDS2849

54' : 04275-2312
B 67

67' : 04318-2407
RST2347

68' : 04247-2305
B 2572

72' : 04298-1403
SKF2469

72' : 04289-2512
B 69AB

76' : 04215-2418
UC 1152

78' : 04310-2459
SEE 37

78' : 04240-2259
ARA1982

81' : 04252-2521
UC 1166

81' : 04306-2301
HDS 580

90' : 04207-2432
TDS2829

91' : 04228-2515
TDS2838

96' : 04331-2451
HEB 2

101' : 04237-2535
UC 1158

103' : 04326-2512
RST2348

105' : 04194-2350
BRT2833

106' : 04305-2538
AOT 14

107' : 04325-2520
TDS2886AB

116' : 04334-2251
YSC 180

117' : 04314-2544
AOT 15

117' : 04188-2332
BRT1375

118' : 04184-2347
RST2344

120' : 04343-2510
TVB 73



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.

04269-2405 BU 311 (HD 28312)

 
 
04h 26m 56.93s -24° 04' 52.8" P.A. 168.00 sep 0.4 mag 6.67,7.09 Sp A3V dist. 97.66 pc (318.57 l.y.)
 
 
Coord 2000 04269-2405 Discov num BU  311 Comp Coord arcsec 2000 04 26 56.93 -24 04 52.8
Date first 1874 Date last 2021 Obs 86
Pa first 340 Pa last 167.9 P.A. Now (θ) 167.9°
Sep first 1.0 Sep last 0.391 Sep. Now (ρ) 0.391"
Mag pri 6.67 Mag sec 7.09 delta mag (ΔM) 0.42 Spectral class A3V (white)
Pri motion ra -009 Sec motion ra -009
Pri motion dec -019 Sec motion dec -019
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 28312 Constellation Eridanus SAO 169455 HIP 20765
Tycho2 6457-03274-1 HD 28312 HR 1410 GC 5409
ADS 3230 CD CD-24 2343 CP CP-24 613 Distance 97.66
Distance ly 318.57
 
 
ORBITAL ELEMENTS
 
 
Period (P)596.45y Periastron (T)1980.98y Semi-major axis (a)1.029a
Eccentricity (e)0.532 Inclination (i)62° Longitude of periastron (ω)345°
Node (Ω)124.3° Notes ReferenceSca2003b
Equinox2000 Last observation1999 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 137.6 0.485
2001 138.7 0.483
2002 139.8 0.480
2003 140.9 0.478
2004 142.0 0.475
2005 143.1 0.473
2006 144.3 0.470
2007 145.4 0.466
2008 146.6 0.463
2009 147.8 0.460
2010 149.0 0.457
2011 150.2 0.453
2012 151.5 0.449
2013 152.7 0.446
2014 154.0 0.442
2015 155.3 0.439
2016 156.7 0.435
2017 158.0 0.431
2018 159.4 0.428
2019 160.8 0.424
2020 162.2 0.421
2021 163.7 0.417
2022 165.1 0.414
2023 166.6 0.411
2024 168.1 0.408
2025 169.7 0.405
2026 171.3 0.402
2027 172.8 0.399
2028 174.4 0.397
2029 176.1 0.394
2030 177.7 0.392


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


 
  


wds04269-2405a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 04269-2405 BU 311 (HD 28312) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Sca2003b orb - Scardia, M. & Bruzzi, A. 2003IAUDS.149R...1S
Sca2003b Inf. Circ. 149, 1, 2003
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04269-2405 BU 311 2001 79 320 0.5 6.67 7.09 A3V NOD 042656.93-240452.8
04269-2405 BU 311 2008 80 148 0.4 6.67 7.09 A3V NOD 042656.93-240452.8
04269-2405 BU 311 2009 82 150 0.4 6.67 7.09 A3V NOD 042656.93-240452.8
04269-2405 BU 311 2010 83 150 0.4 6.67 7.09 A3V NOD 042656.93-240452.8
04269-2405 BU 311 2014 84 157 0.4 6.67 7.09 A3V O 042656.93-240452.8
04269-2405 BU 311 2017 85 161 0.4 6.67 7.09 A3V O 042656.93-240452.8
04269-2405 BU 311 2021 86 168 0.4 6.67 7.09 A3V O 042656.93-240452.8

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

 
 
WDS 04269-2405 BU 311 (HD 28312) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04269-2405 BU 311 (HD 28312) : MEASURES
 
 
No records found.

 
 
WDS 04269-2405 (HD 28312) : VIRTUAL EYEPIECE
 
 

04269-2405 BU 311A mag 6.67 Sp A3V 04269-2405 BU 311B sep 0.4 P.A. 168.90 mag 7.09 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 04269-2405 (HD 28312) : ALADIN DSS IMAGE @ 04h 26m 56.93s -24° 04' 52.8"
 
 
 
 
WDS 04269-2405 BU 311 (HD 28312) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04269-2405 BU 311 distance=0' 04275-2427 I 413 distance=24' 04237-2408 RST2346 distance=46' 04267-2457 TDS2849 distance=53' 04275-2312 B 67 distance=54' 04318-2407 RST2347 distance=67' 04247-2305 B 2572 distance=68' 04298-1403 SKF2469 distance=72' 04289-2512 B 69AB distance=72' 04289-2512 STN 8AC distance=72' 04308-2454 KPP3573AC distance=73' 04215-2418 UC 1152 distance=76' 04310-2459 SEE 37 distance=78' 04240-2259 ARA1982 distance=78' 04252-2521 UC 1166 distance=81' 04306-2301 HDS 580 distance=81' 04207-2432 TDS2829 distance=90' 04228-2515 TDS2838 distance=91' 04331-2451 HEB 2 distance=96' 04237-2535 UC 1158 distance=101' 04326-2512 RST2348 distance=103' 04194-2350 BRT2833 distance=105' 04305-2538 AOT 14 distance=106' 04325-2520 TDS2886AB distance=107' 04334-2251 YSC 180 distance=116' 04314-2544 AOT 15 distance=117' 04188-2332 BRT1375 distance=117' 04184-2347 RST2344 distance=118' 04343-2510 TVB 73 distance=120' 04199-2518 TDS2823 distance=121' 04229-2216 ARA1619 distance=122' 04349-2502 HJ 3664 distance=123' 04215-2544 BU 744AB distance=124' 04215-2544 HJ 3644AB,C distance=124' 04215-2544 HJ 3644AB,D distance=124' 04359-2449 TDS2910 distance=131' 04248-2618 TDS2843 distance=137' 04169-2358 RST2339 distance=138' 04179-2517 TDS2811 distance=143' 04318-2617 KPP2056 distance=148' 04372-2319 RST2351 distance=149' 04273-2135 TDS2855 distance=150' 04160-2400 B 64 distance=151' 04279-2130 BU 184 distance=156' 04233-2138 B 2571 distance=156' 04218-2146 TOK 244 distance=156' 04236-2635 TDS2841 distance=157' 04289-2129 HTS 5 distance=159' 04252-2126 TDS2844 distance=162' 04209-2629 SKF1287AB distance=166' 04164-2531 KPP2832 distance=168' 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 04269-2405 BU 311 168 0.4
Show 04275-2427 I 413 331 0.7 24
Show 04237-2408 RST2346 111 1.9 46
Show 04267-2457 TDS2849 31 1.3 53
Show 04275-2312 B 67 255 0.9 54
Show 04318-2407 RST2347 113 0.1 67
Show 04247-2305 B 2572 337 6.1 68
Show 04298-1403 SKF2469 243 35.7 72
Show 04289-2512 B 69 AB 352 2.6 72
Show 04289-2512 STN 8 AC 352 7.1 72
Show 04308-2454 KPP3573 AC 123 4.5 73
Show 04215-2418 UC 1152 149 19.7 76
Show 04310-2459 SEE 37 33 13.2 78
Show 04240-2259 ARA1982 353 6.5 78
Show 04252-2521 UC 1166 153 38.9 81
Show 04306-2301 HDS 580 233 0.4 81
Show 04207-2432 TDS2829 212 0.7 90
Show 04228-2515 TDS2838 153 0.4 91
Show 04331-2451 HEB 2 -1 1.3 96
Show 04237-2535 UC 1158 200 44.7 101
Show 04326-2512 RST2348 348 0.3 103
Show 04194-2350 BRT2833 114 4.0 105
Show 04305-2538 AOT 14 16 5.6 106
Show 04325-2520 TDS2886 AB 204 0.4 107
Show 04334-2251 YSC 180 154 0.3 116
Show 04314-2544 AOT 15 75 12.8 117
Show 04188-2332 BRT1375 116 5.3 117
Show 04184-2347 RST2344 160 2.1 118
Show 04343-2510 TVB 73 250 12.3 120
Show 04199-2518 TDS2823 268 0.9 121
Show 04229-2216 ARA1619 242 12.0 122
Show 04349-2502 HJ 3664 194 21.5 123
Show 04215-2544 BU 744 AB 243 0.5 124
Show 04215-2544 HJ 3644 AB,C 1 41.1 124
Show 04215-2544 HJ 3644 AB,D 41 43.7 124
Show 04359-2449 TDS2910 185 0.5 131
Show 04248-2618 TDS2843 159 1.4 137
Show 04169-2358 RST2339 83 1.0 138
Show 04179-2517 TDS2811 166 0.5 143
Show 04318-2617 KPP2056 99 16.5 148
Show 04372-2319 RST2351 7 1.4 149
Show 04273-2135 TDS2855 300 0.6 150
Show 04160-2400 B 64 228 3.7 151
Show 04279-2130 BU 184 248 1.9 156
Show 04233-2138 B 2571 309 5.4 156
Show 04218-2146 TOK 244 187 76.3 156
Show 04236-2635 TDS2841 269 1.3 157
Show 04289-2129 HTS 5 30 17.4 159
Show 04252-2126 TDS2844 244 0.5 162
Show 04209-2629 SKF1287 AB 98 85.8 166
Show 04164-2531 KPP2832 321 5.0 168

 
 
WDS 04269-2405 : COMPONENTS
 
 
  A
B pa=168.9°
sep=0.39"
 
 
04269-2405 A
 
 
Componente originario normalizzato AB Name HD 28312 Coord arcsec 2000 042656.93-240452.8 Mag 6.67
Spectral class A3V (white) PmRA -9.00 PmDE -19.0 SAO 169455
HIP 20765 Tycho2 6457-03274-1 HD 28312 HR 1410
GC 5409 CD CD-24 2343 CP CP-24 613
Tycho2
Tycho2 6457-03274-1 Pflag RAmdeg 66.73726100 DEmdeg -24.08137428
PmRA -8.5 PmDE -19.4 E RAmdeg 4 E DEmdeg 3
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.19 EpDEm 1991.51
Num 13 Q RAmdeg 1.0 Q DEmdeg 1.7 Q pmRA 1.0
Q pmDE 1.6 BTmag 6.315 E BTmag 0.014 VTmag 6.155
E VTmag 0.010 Prox 999 TYC T HIP 20765
CCDM AB RAdeg 66.73728278 DEdeg -24.08132972 EpRA 1990 1.57
EpDE 1990 1.69 E RAdeg 3.5 E DEdeg 3.4 Posflg P
Corr 0.1
SAO
SAO 169455 DelFlag RA1950 PmRA1950 -0.0006
DE1950 PmDE1950 -0.014 Vmag 6.1 SpType A2
Double code Source 70 CatNum 5409 DM CD-24 2343
DMcomp BDsup HD 28312 M HD 0
GC 5409 RA1950rad 1.15560382 DE1950rad -0.42223544 PmRA2000 -0.0003
PmDE2000 -0.015
Hipparcos
Catalog H HIP 20765 Proxy H RAhms 04 26 56.93
DEdms -24 04 52.6 Vmag 6.11 VarFlag R Vmag G
RAdeg 66.7372 DEdeg -24.0813 AstroRef A Plx 9
CCDM 04269-2405 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 129 Rho 0.483 HD 28312 BD
CD CD-24 2343 CP CP-24 613 Dm number -24 2343 VIred 0.16
SpType A3V R SpType Coord arcsec 2000 042656.93-240452.6
Hipparcos 2
HIP 20765 Sn 15 So 3 Nc 2
RArad 1.1647843279 DErad -0.4202977663 Plx 10.24 PmRA -5.8
PmDE -13.32 E RArad 0.39 E DErad 0.47 E Plx 0.62
E pmRA 0.45 E pmDE 0.58 Hpmag 6.1569 E Hpmag 0.0006
SHp 0.007 VA 0 BV 0.143 E BV 0.004
VI 0.16
CCDM
Ccdm 04269-2405 RComp Comp A Note1
Note2 Discov num DRAs 2.98 DDEs 7.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.8 Sp A2 PmNote *
PmRA -5 PmDE -14 Dm number -24 2343 Cat1 CD
Name2 169455 Cat2 SAO HD 28312 M HD
ADS BDS A 3230 M ADS BDS N IDS IDS 04227S2418A
HIC 20765
 
 
04269-2405 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 042656.94-240453.2 Mag 7.09 PmRA -9.00
PmDE -19.0 Calc delta mag 0.42 Calc coord yes
CCDM
Ccdm 04269-2405 RComp Comp B Note1 *
Note2 Discov num BU 311 DRAs DDEs
R dRAs Year 1877 Theta Rho
Obs 99 Vmag 7.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 3230 M ADS BDS N IDS IDS 04227S2418B
HIC 20765