02457-3943 B 2077

 
 
02h 45m 44.77s -39° 43' 01.8" P.A. 18.00 sep 10.5 mag 7.86,15.00 Sp G3IV/V dist. 64.89 pc (211.67 l.y.)
 
 
Coord 2000 02457-3943 Discov num B  2077 Comp Coord arcsec 2000 02 45 44.77 -39 43 01.8
Date first 1932 Date last 1999 Obs 2
Pa first 37 Pa last 18 P.A. Now (θ) 18°
Sep first 7.0 Sep last 10.5 Sep. Now (ρ) 10.5"
Mag pri 7.86 Mag sec 15.00 delta mag (ΔM) 7.14 Spectral class G3IV/V (yellow)
Pri motion ra +087 Sec motion ra
Pri motion dec +049 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Eridanus SAO 193898 HIP 12894 Tycho2 7559-00884-1
Gaia DR2 4949308041743808384 HD 17354 GC 3334 CD CD-40 716
CP CP-40 230 Distance 64.89 Distance ly 211.67
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier02457-3943 B 2077 A
coord_arcsec_2000024544.77-394301.8
Period (P)841d (2.3y)± 30 Periastron (T)48839d (1992.592y)± 128 Semi-major axis (a)10.1m± 1.4
Eccentricity (e)0.28± 0.17 Inclination (i)123°± 8 Longitude of periastron (ω)114°± 100
Node (Ω)285°± 94 Notes ReferenceGln2007
Equinox Last observation1991 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 77.0 0.008
2001-01-01 304.3 0.011
2002-01-01 111.8 0.008
2003-01-01 330.4 0.009
2004-01-01 205.5 0.004
2005-01-01 15.0 0.007
2006-01-01 274.9 0.009
2007-01-01 65.3 0.008
2008-01-01 297.9 0.011
2009-01-01 100.5 0.009
2010-01-01 321.1 0.009
2011-01-01 160.8 0.004
2012-01-01 359.1 0.007
2013-01-01 264.3 0.008
2014-01-01 51.7 0.007
2015-01-01 291.6 0.011
2016-01-01 90.4 0.009
2017-01-01 313.1 0.010
2018-01-01 132.1 0.006
2019-01-01 345.1 0.008
2020-01-01 247.7 0.006
2021-01-01 36.3 0.007
2022-01-01 284.9 0.010
2023-01-01 80.1 0.008
2024-01-01 306.1 0.011
2025-01-01 115.4 0.008
2026-01-01 333.3 0.008
2027-01-01 217.5 0.004
2028-01-01 19.7 0.007
2029-01-01 277.3 0.010
2030-01-01 68.7 0.008


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



 
 


wds02457-3943r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 02457-3943 B 2077 : NOTES
 
 
discov_num notes refcode
B 2077 Astrometric orbit for primary, P=2.303y (Golden & Makarov 2007). PM(A) Gln2007
moves almost towards B, so the increased separation is not reflex PM. Tok2014d
 
 
REFERENCES
 
 
refcode metd author reference
Gln2007 orb - Goldin, A. & Makarov, V.V. 2007ApJS..173..137G
Gln2007 ApJS 173, 137, 2007
Gln2007 (Note: Astrometric orbits based on merged NDAC and FAST reductions of Hipparcos
Gln2007 data. Values of T0 are relative to 1991.25 = JD 2448349.0625)
Tok2014d E2 - Tokovinin, A. 2014AJ....147...86T
Tok2014d AJ 147, 86, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 B van den Bos, W.H.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02457-3943 B 2077 1932 1 37 7.0 8.00 15.00 G3IV/V 024544.77-394301.8
02457-3943 B 2077 1999 2 18 10.5 8.00 15.00 G3IV/V NO 024544.77-394301.8

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WDS 02457-3943 B 2077 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 02457-3943 B 2077 : MEASURES
 
 
No records found.

 
 
WDS 02457-3943 : VIRTUAL EYEPIECE
 
 

02457-3943 B  2077A mag 7.86 Sp G3IV/V 02457-3943 B  2077B sep 10.3 P.A. 14.00 mag 15 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 02457-3943 : ALADIN DSS IMAGE @ 02h 45m 44.77s -39° 43' 01.8"
 
 
 
 
WDS 02457-3943 B 2077 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


02457-3943  B  2077 distance=0' 02485-4001  KPP1239 distance=37' 02429-3959  LDS3421 distance=37' 02501-3938  KPP 627 distance=51' 02453-4034  WG   16 distance=52' 02433-4032  HJ 3527AB distance=56' 02433-4032  ARY  95AC distance=56' 02508-3956  HDS 368Aa,Ab distance=60' 02508-3956  SHY 427AB distance=60' 02503-4017  HJ 3537 distance=63' 02504-3906  KPP1660 distance=66' 02396-3958  I    53 distance=73' 02437-3831  LDS3425 distance=77' 02454-4101  BRT 651 distance=79' 02514-4034  KPP 897 distance=83' 02409-3839  HDS 350 distance=86' 02382-4002  I   459 distance=89' 02497-3825  LDS3431AB distance=91' 02456-4114  CPO  30 distance=91' 02499-3821  TVB  40 distance=95' 02434-3756  TOK 187 distance=111' 02372-4036  WG   14 distance=112' 02536-3826  TOK 652 distance=120' 02486-4139  WIS  74 distance=121' 02383-4110  HDS 344 distance=122' 02566-3927  COO  17 distance=127' 02527-4124  I   412 distance=129' 02558-3839  B   679 distance=134' 02413-3735  KPP3497 distance=139' 02398-4144  TDS2324 distance=139' 02336-3944  RST1242 distance=141' 02486-3724  HJ 3532 distance=144' 02444-4206  UC  794 distance=144' 02336-3910  B   674 distance=145' 02435-4207  TDS2342 distance=147' 02368-3800  RST1244 distance=147' 02338-3854  UC  760 distance=148' 02583-4018  PZ    2 (Acamar) distance=149' 02331-3921  KPP3494 distance=149' 02482-4215  KPP2845 distance=154' 02590-3929  RST1249 distance=155' 02330-4034  KPP3493 distance=155' 02588-3903  TDS2403 distance=157' 02574-4112  TOI2409Aa,Ab distance=160' 02574-4112  TOI2409AB distance=160' 02588-3851  RST3374 distance=161' 02594-3859  TDS2407 distance=165' 02315-4001  TOI2417 distance=165' 02481-3659  DAW  35AB distance=167' 02464-3655  B  1436 distance=169' 02434-4232  BVD  65 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 02457-3943 B 2077 18 10.5
Show 02485-4001 KPP1239 30 9.5 37
Show 02429-3959 LDS3421 292 10.6 37
Show 02501-3938 KPP 627 181 5.7 51
Show 02453-4034 WG 16 353 9.3 52
Show 02433-4032 HJ 3527 AB 41 2.3 56
Show 02433-4032 ARY 95 AC 80 132.8 56
Show 02508-3956 HDS 368 Aa,Ab 223 0.3 60
Show 02508-3956 SHY 427 AB 114 999.9 60
Show 02503-4017 HJ 3537 31 15.9 63
Show 02504-3906 KPP1660 263 12.8 66
Show 02396-3958 I 53 330 3.7 73
Show 02437-3831 LDS3425 99 18.9 77
Show 02454-4101 BRT 651 209 8.8 79
Show 02514-4034 KPP 897 289 7.5 83
Show 02409-3839 HDS 350 42 0.9 86
Show 02382-4002 I 459 95 1.5 89
Show 02497-3825 LDS3431 AB 184 3.8 91
Show 02456-4114 CPO 30 33 2.2 91
Show 02499-3821 TVB 40 67 4.7 95
Show 02434-3756 TOK 187 203 0.3 111
Show 02372-4036 WG 14 252 3.0 112
Show 02536-3826 TOK 652 222 560.9 120
Show 02486-4139 WIS 74 154 788.2 121
Show 02383-4110 HDS 344 298 0.2 122
Show 02566-3927 COO 17 190 3.3 127
Show 02527-4124 I 412 288 20.3 129
Show 02558-3839 B 679 54 2.2 134
Show 02413-3735 KPP3497 304 1.7 139
Show 02398-4144 TDS2324 223 1.9 139
Show 02336-3944 RST1242 356 4.4 141
Show 02486-3724 HJ 3532 144 5.3 144
Show 02444-4206 UC 794 133 72.2 144
Show 02336-3910 B 674 288 0.1 145
Show 02435-4207 TDS2342 309 2.1 147
Show 02368-3800 RST1244 222 0.8 147
Show 02338-3854 UC 760 274 13.4 148
Show Acamar 02583-4018 PZ 2 90 8.2 149
Show 02331-3921 KPP3494 14 12.0 149
Show 02482-4215 KPP2845 79 6.8 154
Show 02590-3929 RST1249 52 1.6 155
Show 02330-4034 KPP3493 92 2.2 155
Show 02588-3903 TDS2403 190 0.5 157
Show 02574-4112 TOI2409 Aa,Ab 156 0.1 160
Show 02574-4112 TOI2409 AB 271 23.8 160
Show 02588-3851 RST3374 91 0.3 161
Show 02594-3859 TDS2407 151 0.5 165
Show 02315-4001 TOI2417 285 1.9 165
Show 02481-3659 DAW 35 AB 169 2.2 167
Show 02464-3655 B 1436 17 1.4 169
Show 02434-4232 BVD 65 330 32.1 172

 
 
WDS 02457-3943 : COMPONENTS
 
 
  A
B pa=14.0°
sep=10.29"
 
 
02457-3943 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 024544.77-394301.8 Mag 7.86 Spectral class G3IV/V (yellow)
PmRA 87.00 PmDE 49.0 SAO 193898 HIP 12894
Tycho2 7559-00884-1 HD 17354 GC 3334 CD CD-40 716
CP CP-40 230
Tycho2
Tycho2 7559-00884-1 Pflag RAmdeg 41.43678638 DEmdeg -39.71706139
PmRA 84.8 PmDE 49.2 E RAmdeg 5 E DEmdeg 5
E pmRA 1.2 E pmDE 1.1 EpRAm 1991.33 EpDEm 1991.30
Num 14 Q RAmdeg 1.4 Q DEmdeg 1.2 Q pmRA 1.4
Q pmDE 1.2 BTmag 8.633 E BTmag 0.016 VTmag 7.863
E VTmag 0.011 Prox 999 TYC T HIP 12894
CCDM RAdeg 41.43652972 DEdeg -39.71717528 EpRA 1990 1.63
EpDE 1990 1.66 E RAdeg 4.9 E DEdeg 4.8 Posflg
Corr 0.1
SAO
SAO 193898 DelFlag RA1950 PmRA1950 0.0075
DE1950 PmDE1950 0.053 Vmag 8 SpType G5
Double code Source 70 CatNum 3334 DM CD-40 716
DMcomp BDsup HD 17354 M HD 0
GC 3334 RA1950rad 0.71466841 DE1950rad -0.69686218 PmRA2000 0.008
PmDE2000 0.049
Hipparcos
Catalog H HIP 12894 Proxy RAhms 02 45 44.77
DEdms -39 43 01.8 Vmag 7.78 VarFlag R Vmag H
RAdeg 41.4365 DEdeg -39.7172 AstroRef Plx 16.53
CCDM 02457-3943 N CCDM I Nsys 1 Ncomp 1
MultFlag X Source Qual M HIP
Theta Rho HD 17354 BD
CD CD-40 716 CP CP-40 230 Dm number -40 716 VIred 0.72
SpType G3IV/V R SpType Coord arcsec 2000 024544.77-394301.8
Hipparcos 2
HIP 12894 Sn 1 So 2 Nc 1
RArad 0.7232037469 DErad -0.6931955528 Plx 15.41 PmRA 81.71
PmDE 49.64 E RArad 0.79 E DErad 0.8 E Plx 1.12
E pmRA 0.95 E pmDE 0.92 Hpmag 7.9184 E Hpmag 0.0011
SHp 0.012 VA 0 BV 0.701 E BV 0.009
VI 0.76
CCDM
Ccdm 02457-3943 RComp Comp A Note1
Note2 Discov num DRAs 2.86 DDEs -1.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.0 Sp G5 PmNote *
PmRA 86 PmDE 53 Dm number -40 716 Cat1 CD
Name2 193898 Cat2 SAO HD 17354 M HD
ADS BDS M ADS BDS N IDS IDS 02418S4008A
HIC 12894
 
 
02457-3943 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 024544.99-394251.8 Mag 15 Calc delta mag 7.14
Calc coord yes
CCDM
Ccdm 02457-3943 RComp Comp B Note1
Note2 Discov num B 2077 DRAs DDEs
R dRAs Year Theta 037 Rho 7.0
Obs Vmag 15.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 02418S4008B
HIC 12894