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Doubles in session


Current system
04318-2407
RST 2347
HD 28845


Nearby doubles
48' : 04331-2451
HEB 2

54' : 04310-2459
SEE 37

63' : 04275-2427
I 413

67' : 04269-2405
BU 311

67' : 04326-2512
RST2348

68' : 04306-2301
HDS 580

70' : 04349-2502
HJ 3664

71' : 04359-2449
TDS2910

71' : 04298-1403
SKF2469

72' : 04343-2510
TVB 73

74' : 04325-2520
TDS2886AB

77' : 04289-2512
B 69AB

79' : 04334-2251
YSC 180

80' : 04275-2312
B 67

87' : 04267-2457
TDS2849

89' : 04372-2319
RST2351

94' : 04305-2538
AOT 14

98' : 04314-2544
AOT 15

112' : 04237-2408
RST2346

117' : 04247-2305
B 2572

117' : 04389-2512
TDS2922

118' : 04252-2521
UC 1166

128' : 04240-2259
ARA1982

131' : 04318-2617
KPP2056

133' : 04410-2329
BRT1376

141' : 04228-2515
TDS2838



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.

04318-2407 RST 2347 (HD 28845)

 
 
04h 31m 48.42s -24° 06' 36.8" P.A. 113.00 sep 0.1 mag 8.60,8.80 Sp A0V dist. 207.04 pc (675.36 l.y.)
 
 
Coord 2000 04318-2407 Discov num RST2347 Comp Coord arcsec 2000 04 31 48.42 -24 06 36.8
Date first 1934 Date last 2020 Obs 18
Pa first 8 Pa last 113.1 P.A. Now (θ) 98.2°
Sep first 0.2 Sep last 0.087 Sep. Now (ρ) 0.088"
Mag pri 8.60 Mag sec 8.80 delta mag (ΔM) 0.2 Spectral class A0V (white)
Pri motion ra +017 Sec motion ra
Pri motion dec -004 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 28845 Constellation Eridanus SAO 169538 HIP 21133
Tycho2 6464-02248-1 Gaia DR2 4897703666085905536 HD 28845 CD CD-24 2401
CP CP-24 634 Distance 207.04 Distance ly 675.36
 
 
ORBITAL ELEMENTS
 
 
Period (P)122.9y± 8.2 Periastron (T)2010.87y± 0.44 Semi-major axis (a)0.1734a± 0.0065
Eccentricity (e)0.523± 0.025 Inclination (i)129.4°± 4.6 Longitude of periastron (ω)339.7°± 5.8
Node (Ω)163.5°± 4.5 Notes ReferenceTok2020e
Equinox Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 281.3 0.084
2001 274.1 0.078
2002 265.7 0.073
2003 256.1 0.069
2004 245.5 0.066
2005 234.2 0.064
2006 222.7 0.065
2007 211.7 0.067
2008 201.4 0.070
2009 192.0 0.073
2010 183.5 0.077
2011 175.7 0.080
2012 168.6 0.083
2013 161.8 0.085
2014 155.3 0.086
2015 149.0 0.087
2016 142.7 0.087
2017 136.4 0.087
2018 130.1 0.087
2019 123.7 0.086
2020 117.2 0.086
2021 110.8 0.086
2022 104.4 0.087
2023 98.2 0.088
2024 92.1 0.089
2025 86.2 0.091
2026 80.6 0.094
2027 75.3 0.097
2028 70.4 0.100
2029 65.8 0.103
2030 61.5 0.107


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


 
  


wds04318-2407c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 04318-2407 RST 2347 (HD 28845) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2020e St j Tokovinin, A., Mason, B.D., Mendez, R.A., Costa, E. & Horch, E.P. 2020AJ....160....7T
Tok2020e +orb AJ 160, 7, 2020
 
 
DISCOVERER
 
 
idgroup discov author
1 RST Rossiter, R.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04318-2407 RST2347 1993 14 310 0.1 8.60 8.80 A0V 043148.42-240636.8
04318-2407 RST2347 2018 16 127 0.1 8.60 8.80 A0V O 043148.42-240636.8
04318-2407 RST2347 2019 17 120 0.1 8.60 8.80 A0V O 043148.42-240636.8
04318-2407 RST2347 2020 18 113 0.1 8.60 8.80 A0V O 043148.42-240636.8

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

 
 
WDS 04318-2407 RST 2347 (HD 28845) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04318-2407 RST 2347 (HD 28845) : MEASURES
 
 
No records found.

 
 
WDS 04318-2407 (HD 28845) : VIRTUAL EYEPIECE
 
 

04318-2407 RST2347A mag 8.6 Sp A0V 04318-2407 RST2347B sep 0.1 P.A. 115.00 mag 8.8 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 04318-2407 (HD 28845) : ALADIN DSS IMAGE @ 04h 31m 48.42s -24° 06' 36.8"
 
 
 
 
WDS 04318-2407 RST 2347 (HD 28845) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04318-2407 RST2347 distance=0' 04331-2451 HEB 2 distance=48' 04308-2454 KPP3573AC distance=50' 04310-2459 SEE 37 distance=54' 04275-2427 I 413 distance=63' 04269-2405 BU 311 distance=67' 04326-2512 RST2348 distance=67' 04306-2301 HDS 580 distance=68' 04349-2502 HJ 3664 distance=70' 04359-2449 TDS2910 distance=71' 04298-1403 SKF2469 distance=71' 04343-2510 TVB 73 distance=72' 04325-2520 TDS2886AB distance=74' 04289-2512 B 69AB distance=77' 04289-2512 STN 8AC distance=77' 04334-2251 YSC 180 distance=79' 04275-2312 B 67 distance=80' 04267-2457 TDS2849 distance=87' 04372-2319 RST2351 distance=89' 04305-2538 AOT 14 distance=94' 04314-2544 AOT 15 distance=98' 04237-2408 RST2346 distance=112' 04247-2305 B 2572 distance=117' 04389-2512 TDS2922 distance=117' 04252-2521 UC 1166 distance=118' 04240-2259 ARA1982 distance=128' 04318-2617 KPP2056 distance=131' 04410-2329 BRT1376 distance=133' 04228-2515 TDS2838 distance=141' 04215-2418 UC 1152 distance=141' 04237-2535 UC 1158 distance=142' 04394-2553 RST 111 distance=148' 04207-2432 TDS2829 distance=154' 04384-2612 B 73 distance=155' 04388-2609 UC 1199 distance=155' 04432-2430 HU 1374 distance=158' 04332-2127 TDS2893 distance=161' 04384-2154 DON 74 distance=161' 04248-2618 TDS2843 distance=163' 04289-2129 HTS 5 distance=163' 04273-2135 TDS2855 distance=165' 04410-2223 SKF2471 distance=165' 04430-2507 TDS2943 distance=165' 04229-2216 ARA1619 distance=165' 04279-2130 BU 184 distance=166' 04325-2119 DON 69 distance=168' 04428-2525 TDS2941 distance=170' 04215-2544 BU 744AB distance=171' 04215-2544 HJ 3644AB,C distance=171' 04215-2544 HJ 3644AB,D distance=171' 04194-2350 BRT2833 distance=172' 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 04318-2407 RST2347 113 0.1
Show 04331-2451 HEB 2 -1 1.3 48
Show 04308-2454 KPP3573 AC 123 4.5 50
Show 04310-2459 SEE 37 33 13.2 54
Show 04275-2427 I 413 331 0.7 63
Show 04269-2405 BU 311 168 0.4 67
Show 04326-2512 RST2348 348 0.3 67
Show 04306-2301 HDS 580 233 0.4 68
Show 04349-2502 HJ 3664 194 21.5 70
Show 04359-2449 TDS2910 185 0.5 71
Show 04298-1403 SKF2469 243 35.7 71
Show 04343-2510 TVB 73 250 12.3 72
Show 04325-2520 TDS2886 AB 204 0.4 74
Show 04289-2512 B 69 AB 352 2.6 77
Show 04289-2512 STN 8 AC 352 7.1 77
Show 04334-2251 YSC 180 154 0.3 79
Show 04275-2312 B 67 255 0.9 80
Show 04267-2457 TDS2849 31 1.3 87
Show 04372-2319 RST2351 7 1.4 89
Show 04305-2538 AOT 14 16 5.6 94
Show 04314-2544 AOT 15 75 12.8 98
Show 04237-2408 RST2346 111 1.9 112
Show 04247-2305 B 2572 337 6.1 117
Show 04389-2512 TDS2922 299 0.5 117
Show 04252-2521 UC 1166 153 38.9 118
Show 04240-2259 ARA1982 353 6.5 128
Show 04318-2617 KPP2056 99 16.5 131
Show 04410-2329 BRT1376 276 4.9 133
Show 04228-2515 TDS2838 153 0.4 141
Show 04215-2418 UC 1152 149 19.7 141
Show 04237-2535 UC 1158 200 44.7 142
Show 04394-2553 RST 111 251 2.2 148
Show 04207-2432 TDS2829 212 0.7 154
Show 04384-2612 B 73 45 0.4 155
Show 04388-2609 UC 1199 349 32.6 155
Show 04432-2430 HU 1374 262 0.5 158
Show 04332-2127 TDS2893 290 0.8 161
Show 04384-2154 DON 74 314 0.7 161
Show 04248-2618 TDS2843 159 1.4 163
Show 04289-2129 HTS 5 30 17.4 163
Show 04273-2135 TDS2855 300 0.6 165
Show 04410-2223 SKF2471 256 39.0 165
Show 04430-2507 TDS2943 318 0.5 165
Show 04229-2216 ARA1619 242 12.0 165
Show 04279-2130 BU 184 248 1.9 166
Show 04325-2119 DON 69 128 2.4 168
Show 04428-2525 TDS2941 22 1.0 170
Show 04215-2544 BU 744 AB 243 0.5 171
Show 04215-2544 HJ 3644 AB,C 1 41.1 171
Show 04215-2544 HJ 3644 AB,D 41 43.7 171
Show 04194-2350 BRT2833 114 4.0 172

 
 
WDS 04318-2407 : COMPONENTS
 
 
  A
B pa=115.0°
sep=0.08"
 
 
04318-2407 A
 
 
Componente originario normalizzato AB Name HD 28845 Coord arcsec 2000 043148.42-240636.8 Mag 8.6
Spectral class A0V (white) PmRA 17.00 PmDE -4.0 SAO 169538
HIP 21133 Tycho2 6464-02248-1 HD 28845 CD CD-24 2401
CP CP-24 634
Tycho2
Tycho2 6464-02248-1 Pflag RAmdeg 67.95177096 DEmdeg -24.11022201
PmRA 1.5 PmDE -3.2 E RAmdeg 4 E DEmdeg 4
E pmRA 1.6 E pmDE 1.6 EpRAm 1991.54 EpDEm 1991.62
Num 7 Q RAmdeg 1.5 Q DEmdeg 1.0 Q pmRA 1.4
Q pmDE 0.9 BTmag 7.988 E BTmag 0.015 VTmag 7.871
E VTmag 0.010 Prox 999 TYC T HIP 21133
CCDM RAdeg 67.95176722 DEdeg -24.11021444 EpRA 1990 1.75
EpDE 1990 1.83 E RAdeg 4.3 E DEdeg 4.1 Posflg
Corr 0.2
SAO
SAO 169538 DelFlag RA1950 PmRA1950 0.0016
DE1950 PmDE1950 -0.006 Vmag 7 SpType A2
Double code Source 25 CatNum 2152 DM CD-24 2401
DMcomp BDsup HD 28845 M HD 0
GC RA1950rad 1.17681815 DE1950rad -0.42264816 PmRA2000 0.0019
PmDE2000 -0.007
Hipparcos
Catalog H HIP 21133 Proxy RAhms 04 31 48.42
DEdms -24 06 36.8 Vmag 7.86 VarFlag R Vmag H
RAdeg 67.9518 DEdeg -24.1102 AstroRef Plx 4.23
CCDM 04318-2407 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 28845 BD
CD CD-24 2401 CP CP-24 634 Dm number -24 2401 VIred 0.98
SpType A0V R SpType Coord arcsec 2000 043148.42-240636.8
Hipparcos 2
HIP 21133 Sn 5 So 0 Nc 1
RArad 1.1859820698 DErad -0.4208026602 Plx 4.83 PmRA 2.77
PmDE -2.56 E RArad 0.28 E DErad 0.45 E Plx 0.64
E pmRA 0.3 E pmDE 0.46 Hpmag 7.8969 E Hpmag 0.0027
SHp 0.029 VA 0 BV 0.104 E BV 0.008
VI 0.12
CCDM
Ccdm 04318-2407 RComp Comp A Note1
Note2 Discov num DRAs 0.51 DDEs 23.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.6 Sp A2 PmNote *
PmRA 22 PmDE -6 Dm number -24 2401 Cat1 CD
Name2 169538 Cat2 SAO HD 28845 M HD
ADS BDS M ADS BDS N IDS IDS 04276S2419A
HIC 21133
 
 
04318-2407 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 043148.43-240636.8 Mag 8.8 Calc delta mag 0.2
Calc coord yes
CCDM
Ccdm 04318-2407 RComp Comp B Note1
Note2 Discov num RST2347 DRAs DDEs
R dRAs Year 1960 Theta 356 Rho 0.2
Obs 6 Vmag 8.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 04276S2419B
HIC 21133