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Doubles in session


Current system
04306-2301
HDS 580
HD 28708


Nearby doubles
14' : 04298-1403
SKF2469

42' : 04334-2251
YSC 180

44' : 04275-2312
B 67

68' : 04318-2407
RST2347

81' : 04269-2405
BU 311

83' : 04247-2305
B 2572

91' : 04240-2259
ARA1982

94' : 04372-2319
RST2351

96' : 04289-2129
HTS 5

96' : 04275-2427
I 413

98' : 04273-2135
TDS2855

99' : 04279-2130
BU 184

102' : 04332-2127
TDS2893

106' : 04325-2119
DON 69

110' : 04312-2113
UC 1176

115' : 04229-2216
ARA1619

116' : 04331-2451
HEB 2

116' : 04237-2408
RST2346

118' : 04310-2459
SEE 37

120' : 04333-2108
LDS 122

122' : 04252-2126
TDS2844

128' : 04267-2457
TDS2849

128' : 04384-2154
DON 74

131' : 04359-2449
TDS2910

132' : 04233-2138
B 2571

133' : 04289-2512
B 69AB



Selections
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Binocular doubles
Binary Systems
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Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

04306-2301 HDS 580 (HD 28708)

 
 
04h 30m 33.75s -23° 01' 27.8" P.A. 233.00 sep 0.4 mag 6.97,9.66 Sp A7V dist. 112.99 pc (368.57 l.y.)
 
 
Coord 2000 04306-2301 Discov num HDS 580 Comp Coord arcsec 2000 04 30 33.75 -23 01 27.8
Date first 1991 Date last 2014 Obs 4
Pa first 202 Pa last 232.7 P.A. Now (θ) 232.7°
Sep first 0.4 Sep last 0.396 Sep. Now (ρ) 0.396"
Mag pri 6.97 Mag sec 9.66 delta mag (ΔM) 2.69 Spectral class A7V (white)
Pri motion ra -001 Sec motion ra
Pri motion dec -002 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 28708 Constellation Eridanus SAO 169521 HIP 21032
Tycho2 6464-02657-1 Gaia DR2 4898100555423209088 HD 28708 GC 5503
CD CD-23 1983 CP CP-23 554 Distance 112.99 Distance ly 368.57
 
 
WDS 04306-2301 HDS 580 (HD 28708) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04306-2301 HDS 580 1991 1 202 0.4 6.97 9.66 A7V D 043033.75-230127.8
04306-2301 HDS 580 2014 2 233 0.4 6.97 9.66 A7V 043033.75-230127.8

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

 
 
WDS 04306-2301 HDS 580 (HD 28708) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04306-2301 HDS 580 (HD 28708) : MEASURES
 
 
No records found.

 
 
WDS 04306-2301 (HD 28708) : VIRTUAL EYEPIECE
 
 

04306-2301 HDS 580A mag 6.97 Sp A7V 04306-2301 HDS 580B sep 0.4 P.A. 230.40 mag 9.66 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 04306-2301 (HD 28708) : ALADIN DSS IMAGE @ 04h 30m 33.75s -23° 01' 27.8"
 
 
 
 
WDS 04306-2301 HDS 580 (HD 28708) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04306-2301 HDS 580 distance=1' 04298-1403 SKF2469 distance=14' 04334-2251 YSC 180 distance=42' 04275-2312 B 67 distance=44' 04318-2407 RST2347 distance=68' 04269-2405 BU 311 distance=81' 04247-2305 B 2572 distance=83' 04240-2259 ARA1982 distance=91' 04372-2319 RST2351 distance=94' 04289-2129 HTS 5 distance=96' 04275-2427 I 413 distance=96' 04273-2135 TDS2855 distance=98' 04279-2130 BU 184 distance=99' 04332-2127 TDS2893 distance=102' 04325-2119 DON 69 distance=106' 04312-2113 UC 1176 distance=110' 04308-2454 KPP3573AC distance=113' 04229-2216 ARA1619 distance=115' 04331-2451 HEB 2 distance=116' 04237-2408 RST2346 distance=116' 04310-2459 SEE 37 distance=118' 04333-2108 LDS 122 distance=120' 04252-2126 TDS2844 distance=122' 04267-2457 TDS2849 distance=128' 04384-2154 DON 74 distance=128' 04359-2449 TDS2910 distance=131' 04233-2138 B 2571 distance=132' 04289-2512 B 69AB distance=133' 04289-2512 STN 8AC distance=133' 04333-2054 SKF2470 distance=134' 04326-2512 RST2348 distance=134' 04349-2502 HJ 3664 distance=135' 04299-2046 KPP3571 distance=137' 04343-2510 TVB 73 distance=138' 04325-2520 TDS2886AB distance=141' 04218-2146 TOK 244 distance=144' 04215-2418 UC 1152 distance=146' 04410-2329 BRT1376 distance=148' 04410-2223 SKF2471 distance=151' 04305-2538 AOT 14 distance=157' 04252-2521 UC 1166 distance=159' 04365-2046 UC 1193 distance=159' 04194-2350 BRT2833 distance=162' 04207-2432 TDS2829 distance=163' 04314-2544 AOT 15 distance=164' 04188-2332 BRT1375 distance=165' 04396-2115 BU 1236AB distance=165' 04396-2115 BU 1236AC distance=165' 04228-2515 TDS2838 distance=171' 04184-2347 RST2344 distance=174' 04205-2120 B 2570 distance=174' 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 04306-2301 HDS 580 233 0.4 1
Show 04298-1403 SKF2469 243 35.7 14
Show 04334-2251 YSC 180 154 0.3 42
Show 04275-2312 B 67 255 0.9 44
Show 04318-2407 RST2347 113 0.1 68
Show 04269-2405 BU 311 168 0.4 81
Show 04247-2305 B 2572 337 6.1 83
Show 04240-2259 ARA1982 353 6.5 91
Show 04372-2319 RST2351 7 1.4 94
Show 04289-2129 HTS 5 30 17.4 96
Show 04275-2427 I 413 331 0.7 96
Show 04273-2135 TDS2855 300 0.6 98
Show 04279-2130 BU 184 248 1.9 99
Show 04332-2127 TDS2893 290 0.8 102
Show 04325-2119 DON 69 128 2.4 106
Show 04312-2113 UC 1176 242 66.0 110
Show 04308-2454 KPP3573 AC 123 4.5 113
Show 04229-2216 ARA1619 242 12.0 115
Show 04331-2451 HEB 2 -1 1.3 116
Show 04237-2408 RST2346 111 1.9 116
Show 04310-2459 SEE 37 33 13.2 118
Show 04333-2108 LDS 122 194 249.3 120
Show 04252-2126 TDS2844 244 0.5 122
Show 04267-2457 TDS2849 31 1.3 128
Show 04384-2154 DON 74 314 0.7 128
Show 04359-2449 TDS2910 185 0.5 131
Show 04233-2138 B 2571 309 5.4 132
Show 04289-2512 B 69 AB 352 2.6 133
Show 04289-2512 STN 8 AC 352 7.1 133
Show 04333-2054 SKF2470 88 6.0 134
Show 04326-2512 RST2348 348 0.3 134
Show 04349-2502 HJ 3664 194 21.5 135
Show 04299-2046 KPP3571 295 1.7 137
Show 04343-2510 TVB 73 250 12.3 138
Show 04325-2520 TDS2886 AB 204 0.4 141
Show 04218-2146 TOK 244 187 76.3 144
Show 04215-2418 UC 1152 149 19.7 146
Show 04410-2329 BRT1376 276 4.9 148
Show 04410-2223 SKF2471 256 39.0 151
Show 04305-2538 AOT 14 16 5.6 157
Show 04252-2521 UC 1166 153 38.9 159
Show 04365-2046 UC 1193 270 49.9 159
Show 04194-2350 BRT2833 114 4.0 162
Show 04207-2432 TDS2829 212 0.7 163
Show 04314-2544 AOT 15 75 12.8 164
Show 04188-2332 BRT1375 116 5.3 165
Show 04396-2115 BU 1236 AB 95 1.5 165
Show 04396-2115 BU 1236 AC 314 39.9 165
Show 04228-2515 TDS2838 153 0.4 171
Show 04184-2347 RST2344 160 2.1 174
Show 04205-2120 B 2570 51 7.5 174

 
 
WDS 04306-2301 : COMPONENTS
 
 
  A
B pa=230.4°
sep=0.38"
 
 
04306-2301 A
 
 
Componente originario normalizzato AB Name HD 28708 Coord arcsec 2000 043033.75-230127.8 Mag 6.97
Spectral class A7V (white) PmRA -1.00 PmDE -2.0 SAO 169521
HIP 21032 Tycho2 6464-02657-1 HD 28708 GC 5503
CD CD-23 1983 CP CP-23 554
Tycho2
Tycho2 6464-02657-1 Pflag RAmdeg 67.64063187 DEmdeg -23.02439530
PmRA 0.6 PmDE -2.2 E RAmdeg 4 E DEmdeg 4
E pmRA 0.9 E pmDE 1.0 EpRAm 1991.26 EpDEm 1991.16
Num 15 Q RAmdeg 1.0 Q DEmdeg 1.8 Q pmRA 1.1
Q pmDE 1.8 BTmag 7.042 E BTmag 0.015 VTmag 6.846
E VTmag 0.010 Prox 524 TYC T HIP 21032
CCDM AB RAdeg 67.64063056 DEdeg -23.02439028 EpRA 1990 1.66
EpDE 1990 1.55 E RAdeg 3.7 E DEdeg 3.9 Posflg P
Corr 0.1
SAO
SAO 169521 DelFlag RA1950 PmRA1950 -0.0005
DE1950 PmDE1950 -0.005 Vmag 7 SpType A2
Double code Source 70 CatNum 5503 DM CD-23 1983
DMcomp BDsup HD 28708 M HD 0
GC 5503 RA1950rad 1.17128159 DE1950rad -0.40372263 PmRA2000 -0.0001
PmDE2000 -0.006
Hipparcos
Catalog H HIP 21032 Proxy H RAhms 04 30 33.75
DEdms -23 01 27.8 Vmag 6.83 VarFlag R Vmag H
RAdeg 67.6406 DEdeg -23.0244 AstroRef A Plx 7.06
CCDM 04306-2301 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 202 Rho 0.431 HD 28708 BD
CD CD-23 1983 CP CP-23 554 Dm number -23 1983 VIred 0.18
SpType A7V R SpType Coord arcsec 2000 043033.75-230127.8
Hipparcos 2
HIP 21032 Sn 15 So 3 Nc 2
RArad 1.1805517341 DErad -0.4018513115 Plx 8.85 PmRA -2.37
PmDE -3 E RArad 0.44 E DErad 0.5 E Plx 0.7
E pmRA 0.49 E pmDE 0.61 Hpmag 6.8827 E Hpmag 0.0012
SHp 0.011 VA 0 BV 0.166 E BV 0.007
VI 0.18
CCDM
Ccdm 04306-2301 RComp Comp A Note1
Note2 Discov num DRAs -2.25 DDEs -27.8
R dRAs 82 Year Theta Rho
Obs 2 Vmag 7.0 Sp A7 PmNote *
PmRA -1 PmDE -2 Dm number -23 1983 Cat1 CD
Name2 169521 Cat2 SAO HD 28708 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 21032
 
 
04306-2301 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 043033.73-230128.0 Mag 9.66 Calc delta mag 2.69
Calc coord yes
CCDM
Ccdm 04306-2301 RComp Comp B Note1
Note2 Discov num HDS DRAs -2.26 DDEs -28.2
R dRAs 82 Year 1991 Theta 202 Rho 0.4
Obs 1 Vmag 9.7 Sp PmNote *
PmRA -1 PmDE -2 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 21032