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Doubles in session


Current system
00487+1841
BU 495 AB
HD 4655


Nearby doubles
26' : 00501+1857
TDS 31

38' : 00514+1844
SKF 225

44' : 00463+1815
KPP3135

56' : 00519+1807
LDS3205

56' : 00480+1936
KPP 62

65' : 00482+1737
GWP 87

69' : 00536+1846
BRT1925

69' : 00534+1820
UC 457

70' : 00530+1806
A 2207

70' : 00532+1909
LEP 3

74' : 00474+1730
BPM 20

75' : 00536+1911
COU 252

78' : 00474+1726
BPM 19

79' : 00497+1959
BRT2298

81' : 00446+1749
LDS3194

81' : 00525+1740
A 2306

82' : 00445+1935
FMR 33

82' : 00545+1849
UC 465

83' : 00537+1758
GWP 97

89' : 00546+1911
STT 20AB

94' : 00510+2008
DAM 865

94' : 00553+1856
A 2209

96' : 00445+1956
TDS1595

97' : 00466+2013
A 2206

100' : 00549+1928
A 2208

105' : 00446+2007
GWP 84



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.

00487+1841 BU 495 AB (HD 4655)

 
 
00h 48m 44.81s +18° 41' 07.9" P.A. 238.00 sep 0.4 mag 8.34,8.61 Sp G0 dist. 64.1 pc (209.09 l.y.)
 
 
Coord 2000 00487+1841 Discov num BU  495 Comp AB Coord arcsec 2000 00 48 44.81 +18 41 07.9
Date first 1878 Date last 2018 Obs 165
Pa first 231 Pa last 237.8 P.A. Now (θ) 232.2°
Sep first 0.6 Sep last 0.429 Sep. Now (ρ) 0.538"
Mag pri 8.34 Mag sec 8.61 delta mag (ΔM) 0.27 Spectral class G0 (yellow)
Pri motion ra -015 Sec motion ra
Pri motion dec -051 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
00487+1841 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 4655 92095 00 48 45 +18 41 08 BU 495 AB 2018 165 238 0.4 8.34 8.61 0.27 Y <===
Show 92095 00 48 45 +18 41 08 TOK 224 AC 2015 10 139 152.3 8.34 10.83 2.49
Show 00 48 52 +18 39 13 RAO 5 Ca,Cb 2013 2 321 0.7 10.83 12.00 1.17
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 4655 Constellation Pisces SAO 92095 HIP 3795
Tycho2 1191-01284-1 HD 4655 ADS 673 BD BD+17 105
Distance 64.1 Distance ly 209.09
 
 
ORBITAL ELEMENTS
 
 
Period (P)143.628y± 4 Periastron (T)1979.856y± 0.27 Semi-major axis (a)0.617a± 0.026
Eccentricity (e)0.5± 0.01 Inclination (i)107.4°± 4.6 Longitude of periastron (ω)338.1°± 12.4
Node (Ω)31.3°± 5.6 Notesn ReferenceSca2000b
Equinox2000 Last observation1998 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 309.0 0.168
2001 300.4 0.171
2002 292.2 0.177
2003 284.6 0.186
2004 277.9 0.198
2005 272.0 0.212
2006 266.9 0.227
2007 262.4 0.244
2008 258.5 0.261
2009 255.1 0.279
2010 252.1 0.298
2011 249.5 0.317
2012 247.2 0.336
2013 245.1 0.355
2014 243.2 0.374
2015 241.5 0.393
2016 240.0 0.412
2017 238.6 0.430
2018 237.3 0.449
2019 236.2 0.467
2020 235.1 0.485
2021 234.1 0.503
2022 233.1 0.521
2023 232.2 0.538
2024 231.4 0.555
2025 230.6 0.571
2026 229.9 0.587
2027 229.2 0.603
2028 228.5 0.618
2029 227.9 0.633
2030 227.3 0.648


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


 
  


wds00487%2B1841a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 00487+1841 BU 495 AB (HD 4655) : NOTES
 
 
discov_num notes refcode
BU 495 Hipparcos parallax of 0".01628 yields a mass sum of 2.14 Msun
with an uncertainty of 28%, agreeing well for a double star of
spectral type G0. The dynamical parallax is 0".0149, in reasonable
agreement with the measured one. Semi-major axis erroneously given
as 0.317; a = 0.617 matches Scardia's figure, so is assumed to be
the intended value. Sca2000b
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 3.00 +/- 0.67, 2.30, and 1.05 Msun, respectively. Mlk2012
Quadruple system. The inner AB pair, BU 495, has an orbit with a 143.6
+/- 4.0 yr period (Scardia et al. 2000). The CPM component C at 152" Sca2000b
from AB was found by Tokovinin & Lepine (2012), who estimate the Tok2012c
probability of it being physical as 0.99. The component C was resolved
by Riddle et al. (2015) into a 0".67 pair Ca,Cb. The PM is too small RAO2015
to determine if the Ca and Cb share common PM, but the low density of
background stars and the small separation imply that the pair Ca,Cb is
physical. Rbr2015d
 
 
REFERENCES
 
 
refcode metd author reference
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
RAO2015 Ag u Riddle, R.L., Tokovinin, A., Mason, B.D., Hartkopf, W.I., Roberts, L.C., Jr., 2015ApJ...799....4R
RAO2015 +orb Baranec, C., Law, N.M., Bui, K., Burse, M.P., Das, H.K., Dekany, R.G.,
RAO2015 Kulkarni, S., Punnadi, S., Ramaprakash, A.N., & Tendulkar, S.P.
RAO2015 ApJ 799, 4, 2015
RAO2015 (Note: Paper includes separation/magnitude difference limits for all stars
RAO2015 observed. These limits have been added to the Interferometric Catalog even for
RAO2015 resolved pairs, to indicate restrictions on any potential additional components.)
Rbr2015d Ac j Roberts, L.C., Jr., Tokovinin, A., Mason, B.D., Hartkopf, W.I., & Riddle, R.L. 2015AJ....150..130R
Rbr2015d +A AJ 150, 130, 2015
Sca2000b orb - Scardia, M., Prieur, J.-L., Aristidi, E., & Koechlin, L. 2000AN....321..255S
Sca2000b AN 321, 255, 2000
Tok2012c Pp - Tokovinin, A. & Lepine, S. 2012AJ....144..102T
Tok2012c +E2 AJ 144, 102, 2012
Tok2012c (Note: Per author's suggestion, catalog only includes pairs with Pphys > 0.2 or
Tok2012c both proper motions >100 mas/yr. Coarse date of 1980 assumed for all Sky Survey
Tok2012c measures. Theta values derived by cataloguer from component coordinates.
Tok2012c 2MASS photometry replaced with more precise catalog values and errors.)
 
 
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
00487+1841 BU 495 AB 2013 162 245 0.3 8.34 8.61 G0 NO 004844.81+184107.9
00487+1841 BU 495 AB 2018 163 238 0.4 8.34 8.61 G0 NO 004844.81+184107.9

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

 
 
WDS 00487+1841 BU 495 AB (HD 4655) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 00487+1841 BU 495 AB (HD 4655) : MEASURES
 
 
No records found.

 
 
WDS 00487+1841 (HD 4655) : VIRTUAL EYEPIECE
 
 

00487+1841 BU 495A mag 8.34 Sp G0 00487+1841 BU 495B sep 0.4 P.A. 236.40 mag 8.61 00487+1841 RAO 5C sep 152.3 P.A. 138.90 mag 10.83 00487+1841 RAO 5Cb sep 151.6 P.A. 138.90 mag 12 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 00487+1841 (HD 4655) : ALADIN DSS IMAGE @ 00h 48m 44.81s +18° 41' 07.9"
 
 
 
 
WDS 00487+1841 BU 495 AB (HD 4655) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

00487+1841 BU 495AB distance=0' 00487+1841 RAO 5Ca,Cb distance=3' 00501+1857 TDS 31 distance=26' 00514+1844 SKF 225 distance=38' 00463+1815 KPP3135 distance=44' 00519+1807 LDS3205 distance=56' 00480+1936 KPP 62 distance=56' 00482+1737 GWP 87 distance=65' 00536+1846 BRT1925 distance=69' 00534+1820 UC 457 distance=69' 00530+1806 A 2207 distance=70' 00532+1909 LEP 3 distance=70' 00474+1730 BPM 20 distance=74' 00536+1911 COU 252 distance=75' 00474+1726 BPM 19 distance=78' 00497+1959 BRT2298 distance=79' 00446+1749 LDS3194 distance=81' 00525+1740 A 2306 distance=81' 00445+1935 FMR 33 distance=82' 00545+1849 UC 465 distance=82' 00537+1758 GWP 97 distance=83' 00546+1911 STT 20AB distance=89' 00546+1911 BU 1352AB,C distance=89' 00510+2008 DAM 865 distance=94' 00553+1856 A 2209 distance=94' 00445+1956 TDS1595 distance=96' 00466+2013 A 2206 distance=97' 00549+1928 A 2208 distance=100' 00446+2007 GWP 84 distance=105' 00490+1656 BUP 12AB distance=105' 00490+1656 BUP 12AC distance=105' 00471+2025 J 221 distance=107' 00436+1721 STF 51 distance=109' 00419+1751 A 2303 distance=110' 00404+1825 SKF 216 distance=120' 00484+1640 GCB 2 distance=121' 00424+1721 BPM 17 distance=122' 00520+2035 GIC 16 distance=123' 00495+1640 J 924 distance=124' 00574+1829 J 586 distance=125' 00415+1731 A 2204 distance=125' 00562+1955 TDS1673 distance=129' 00571+1943 ROE 106 distance=134' 00479+2056 NSN 510 distance=135' 00557+1706 HEI 94 distance=138' 00539+1639 KPP 914 distance=143' 00524+2057 LDS3206 distance=145' 00385+1902 GRV 36 distance=147' 00408+2016 AZC 6 distance=148' 00429+2047 A 2205 distance=151' 00501+1606 GWP 88 distance=157' 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 00487+1841 BU 495 AB 238 0.4
Show 00487+1841 TOK 224 AC 139 152.3
Show 00487+1841 RAO 5 Ca,Cb 321 0.7 3
Show 00501+1857 TDS 31 123 0.9 26
Show 00514+1844 SKF 225 142 12.7 38
Show 00463+1815 KPP3135 272 5.2 44
Show 00519+1807 LDS3205 263 177.6 56
Show 00480+1936 KPP 62 285 3.5 56
Show 00482+1737 GWP 87 132 27.9 65
Show 00536+1846 BRT1925 121 2.4 69
Show 00534+1820 UC 457 262 8.9 69
Show 00530+1806 A 2207 168 3.7 70
Show 00532+1909 LEP 3 234 81.5 70
Show 00474+1730 BPM 20 54 81.7 74
Show 00536+1911 COU 252 99 0.3 75
Show 00474+1726 BPM 19 190 115.4 78
Show 00497+1959 BRT2298 198 3.6 79
Show 00446+1749 LDS3194 162 151.6 81
Show 00525+1740 A 2306 302 1.4 81
Show 00445+1935 FMR 33 254 9.0 82
Show 00545+1849 UC 465 311 62.7 82
Show 00537+1758 GWP 97 345 11.1 83
Show 00546+1911 STT 20 AB 176 0.6 89
Show 00546+1911 BU 1352 AB,C 9 150.2 89
Show 00510+2008 DAM 865 349 3.8 94
Show 00553+1856 A 2209 154 1.8 94
Show 00445+1956 TDS1595 273 0.8 96
Show 00466+2013 A 2206 294 4.6 97
Show 00549+1928 A 2208 91 1.6 100
Show 00446+2007 GWP 84 141 18.8 105
Show 00490+1656 BUP 12 AB 331 85.6 105
Show 00490+1656 BUP 12 AC 161 61.1 105
Show 00471+2025 J 221 7 5.8 107
Show 00436+1721 STF 51 125 3.6 109
Show 00419+1751 A 2303 221 1.1 110
Show 00404+1825 SKF 216 271 5.1 120
Show 00484+1640 GCB 2 27 2.0 121
Show 00424+1721 BPM 17 239 118.1 122
Show 00520+2035 GIC 16 56 999.9 123
Show 00495+1640 J 924 308 4.2 124
Show 00574+1829 J 586 45 1.7 125
Show 00415+1731 A 2204 340 1.1 125
Show 00562+1955 TDS1673 248 0.9 129
Show 00571+1943 ROE 106 100 3.0 134
Show 00479+2056 NSN 510 198 30.1 135
Show 00557+1706 HEI 94 254 1.0 138
Show 00539+1639 KPP 914 154 7.6 143
Show 00524+2057 LDS3206 241 24.8 145
Show 00385+1902 GRV 36 350 66.7 147
Show 00408+2016 AZC 6 224 31.7 148
Show 00429+2047 A 2205 2 0.4 151

 
 
WDS 00487+1841 : COMPONENTS
 
 
  A B C
B pa=236.4°
sep=0.41"
 
C pa=138.9°
sep=152.28"
pa=138.8°
sep=152.33"
 
Cb pa=138.9°
sep=151.63"
pa=138.8°
sep=151.68"
pa=322.4°
sep=0.65"
 
 
00487+1841 A
 
 
Name HD 4655 Coord arcsec 2000 004844.81+184107.9 Mag 8.34 Spectral class G0 (yellow)
PmRA -15.00 PmDE -51.0 SAO 92095 HIP 3795
Tycho2 1191-01284-1 HD 4655 ADS 673 BD BD+17 105
Tycho2
Tycho2 1191-01284-1 Pflag RAmdeg 12.18671564 DEmdeg 18.68552860
PmRA -14.6 PmDE -50.6 E RAmdeg 6 E DEmdeg 7
E pmRA 1.1 E pmDE 1.0 EpRAm 1991.12 EpDEm 1990.97
Num 11 Q RAmdeg 1.0 Q DEmdeg 0.7 Q pmRA 1.0
Q pmDE 0.8 BTmag 8.323 E BTmag 0.018 VTmag 7.674
E VTmag 0.013 Prox 999 TYC T HIP 3795
CCDM AB RAdeg 12.18675139 DEdeg 18.68564444 EpRA 1990 1.69
EpDE 1990 1.78 E RAdeg 5.7 E DEdeg 6.8 Posflg P
Corr 0.0
SAO
SAO 92095 DelFlag RA1950 PmRA1950 0.0009
DE1950 PmDE1950 -0.058 Vmag 7.7 SpType G0
Double code Source 28 CatNum 217 DM BD+17 105
DMcomp BDsup HD 4655 M HD 0
GC RA1950rad 0.20118885 DE1950rad 0.32137968 PmRA2000 0.0009
PmDE2000 -0.062
Hipparcos
Catalog H HIP 3795 Proxy H RAhms 00 48 44.82
DEdms +18 41 08.3 Vmag 7.6 VarFlag R Vmag G
RAdeg 12.1868 DEdeg 18.6857 AstroRef * Plx 16.28
CCDM 00487+1841 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 3 Rho 0.235 HD 4655 BD BD+17 105
CD CP Dm number +17 105 VIred 0.68
SpType G0 R SpType Coord arcsec 2000 004844.82+184108.3
Hipparcos 2
HIP 3795 Sn 55 So 3 Nc 2
RArad 0.2126990473 DErad 0.3261261463 Plx 15.6 PmRA -13.69
PmDE -49.65 E RArad 0.74 E DErad 0.74 E Plx 0.91
E pmRA 0.92 E pmDE 0.83 Hpmag 7.7176 E Hpmag 0.001
SHp 0.006 VA 0 BV 0.614 E BV 0.015
VI 0.68
CCDM
Ccdm 00487+1841 RComp Comp A Note1
Note2 Discov num DRAs 2.78 DDEs 7.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.4 Sp G0 PmNote *
PmRA -22 PmDE -60 Dm number +17 105 Cat1 BD
Name2 +18 60 Cat2 AGK2/3 HD 4655 M HD
ADS BDS A 673 M ADS BDS N IDS IDS 00435N1809A
HIC 3795
 
 
00487+1841 B
 
 
Coord arcsec 2000 004844.79+184107.7 Mag 8.61 Calc delta mag 0.27 Calc coord yes
CCDM
Ccdm 00487+1841 RComp Comp B Note1 *
Note2 Discov num BU 495 DRAs DDEs
R dRAs Year 1878 Theta Rho
Obs 99 Vmag 8.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 673 M ADS BDS N IDS IDS 00435N1809B
HIC 3795
 
 
00487+1841 C
 
 
Coord arcsec 2000 004851.85+183913.1 Coord calc 004851.49+183913.1 Mag 10.83 Mag composta 10.83
PmRA -16.00 PmDE -52.0 Tycho2 1191-01179-1 Calc delta mag 2.49
Tycho2
Tycho2 1191-01179-1 Pflag RAmdeg 12.21604848 DEmdeg 18.65363149
PmRA -17.1 PmDE -52.2 E RAmdeg 41 E DEmdeg 51
E pmRA 1.3 E pmDE 1.3 EpRAm 1980.45 EpDEm 1973.12
Num 5 Q RAmdeg 0.7 Q DEmdeg 1.1 Q pmRA 0.8
Q pmDE 1.2 BTmag 12.028 E BTmag 0.158 VTmag 10.829
E VTmag 0.085 Prox 999 TYC HIP
CCDM RAdeg 12.21609250 DEdeg 18.65375111 EpRA 1990 1.68
EpDE 1990 1.72 E RAdeg 53.6 E DEdeg 70.6 Posflg
Corr 0.0
 
 
00487+1841 Cb
 
 
Coord arcsec 2000 004851.82+183913.6 Mag 12 Calc delta mag 3.66 Calc coord yes