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Current system
08433+2128
BUP 121 BD


Nearby doubles
17' : 08445+2124
RAO 128

23' : 08449+2137
RAO 124

37' : 08454+2152
SLE 474

53' : 08401+2104
OCC 658

57' : 08394+2123
MRA 9

58' : 08465+2051
UC 125

58' : 08417+2036
SLW 279AB

61' : 08477+2139
SLE 475

66' : 08439+2234
SLE 473

66' : 08460+2225
SKF 508

67' : 08423+2025
SLE 338

68' : 08413+2029
BU 585

69' : 08430+2020
BOV 51

70' : 08385+2133
BOV 37

70' : 08432+2020
DAM1475

70' : 08454+2026
KPP2015

71' : 08408+2028
SLW 276

75' : 08391+2045
SLE 331

76' : 08399+2032
TDS 484

77' : 08444+2014
KPP1155

78' : 08381+2107
SKF 699

79' : 08445+2012
SLE 339

81' : 08401+2023
SLE 334

82' : 08405+2019
BOV 45

82' : 08431+2250
POU3004

83' : 08419+2010
SLE 336AB



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

08433+2128 BUP 121 BD

 
 
08h 43m 24.67s +21° 28' 52.5" P.A. 103.00 sep 95.6 mag 10.20,14.95 Sp G5
 
 
Coord 2000 08433+2128 Discov num BUP 121 Comp BD Coord arcsec 2000 08 43 24.67 +21 28 52.5
Date first 1908 Date last 2015 Obs 6
Pa first 102 Pa last 103 P.A. Now (θ) 103°
Sep first 94.6 Sep last 95.563 Sep. Now (ρ) 95.563"
Mag pri 10.20 Mag sec 14.95 delta mag (ΔM) 4.75 Spectral class G5 (yellow)
Pri motion ra -010 Sec motion ra -001
Pri motion dec +003 Sec motion dec -003
Notes N (See Notes)
rPM=1.036
This double is not physical.
 
 
08433+2128 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Asellus Borealis 80378 08 43 17 +21 28 07 ENG 38 AB 2015 22 67 115.9 4.65 10.20 5.55
Show 80378 08 43 17 +21 28 07 BUP 121 AC 2015 4 259 92.0 4.65 14.13 9.48
Show 08 43 25 +21 28 52 BUP 121 BD 2015 6 103 95.6 10.20 14.95 4.75 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cancer Gaia DR2 664951720146099200
 
 
WDS 08433+2128 BUP 121 BD : NOTES
 
 
discov_num notes refcode
ENG 38 43 Cnc = gam Cnc = Asellus Borealis. A is a spectroscopic binary.
B is BD+21@1897.
 
 
REFERENCES
 
 
refcode metd author reference
BUP Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913) 1913QB811.B8.......
ENG (Note: Some time after publication of the IDS, the designation for Engelmann was
ENG changed from EN to ENG and that for Engelhardt from ENG to ENH. This has led to
ENG considerable confusion between the two. All but three of the ENG pairs in the WDS
ENG (ENG 21, 39, and 68) were actually discovered by Engelhardt. These pairs were
ENG not renamed, however, in order to avoid confusion with already published measures)
Eng1865 Ma - Engelmann, R. .
Eng1865 Messungen Neunzig Doppelsternen, 1865
Eng1865b Ma - Engelmann, R. 1865AN.....64...81E
Eng1865b AN 64, 81, #1518, 1865
Eng1868 Ma j Engelmann, R. 1868AN.....70..257E
Eng1868 AN 70, 257, 1868
Eng1868b Ma j Engelmann, R. 1868AN.....71..235B
Eng1868b AN 71, 253, #1696, 1868
Eng1875A Ma - Engelmann, R. 1875AN.....85..323D
Eng1875A cited by Doberck, 1875 (see Dob1875b,f,g,h)
Eng1882 Ma j Engelmann, R. .
Eng1882 Pub. K. Univ. Sternwarte Leipzig, Heft 1, 33, 1882
Eng1882 (Most data were published in AN 70, 257, 1868. Some of the remaining measures 1868AN.....70..257E
Eng1882 were too discrepant, so not added to WDS)
Eng1885a Ma - Engelmann, R. 1885AN....111..337E
Eng1885a AN 111, 337, 1885
Eng1885b Ma j Engelmann, R. 1885AN....112..193E
Eng1885b AN 112, 193, 1885
Eng1886 Ma - Engelmann, R. 1886AN....115...81E
Eng1886 AN 115, 81, 1886
Eng1887 Ma - Engelmann, R. 1887AN....117...17E
Eng1887 AN 117, 17, 1887
Eng1905A Ma - Engelmann, R. 1905LicOB...3..147A
Eng1905A cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
Eng1906A Ma - Engelmann, R. 1906MmRAS..56....1L
Eng1906A cited by Lewis (MemRAS 56, 1, 1906)
Eng1913A Ma - Engelmann, R. 1913QB811.B8.......
Eng1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Eng1937A Ma - Engelmann, R. 1937AnLei..18....1S
Eng1937A cited by Strand (Ann. Sterrew. Leiden 18, 1937)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
08433+2128 BUP 121 BD 1998 2 103 95.4 8.70 12.90 D 084324.67+212852.5
08433+2128 BUP 121 BD 2001 3 103 95.2 10.20 14.40 N D 084324.67+212852.5
08433+2128 BUP 121 BD 2015 4 103 95.6 10.20 14.95 G5 N 084324.67+212852.5

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

 
 
WDS 08433+2128 BUP 121 BD : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 08433+2128 BUP 121 BD : MEASURES
 
 
No records found.

 
 
WDS 08433+2128 : VIRTUAL EYEPIECE
 
 

08433+2128 ENG 38A mag 4.65 Sp A1IV 08433+2128 BUP 121B sep 113.7 P.A. 66.40 mag 10.2 Sp G5 08433+2128 BUP 121C sep 85.9 P.A. 257.80 mag 14.13 08433+2128 BUP 121D sep 192.3 P.A. 82.80 mag 14.95 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 08433+2128 : ALADIN DSS IMAGE @ 08h 43m 24.67s +21° 28' 52.5"
 
 
 
 
WDS 08433+2128 BUP 121 BD : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

08433+2128 BUP 121BD distance=0' 08433+2128 ENG 38AB (Asellus Borealis) distance=2' 08433+2128 BUP 121AC (Asellus Borealis) distance=2' 08445+2124 RAO 128 distance=17' 08449+2137 RAO 124 distance=23' 08454+2152 SLE 474 distance=37' 08401+2104 OCC 658 distance=53' 08394+2123 MRA 9 distance=57' 08465+2051 UC 125 distance=58' 08417+2036 SLW 279AB distance=58' 08417+2036 SLW 278BC distance=61' 08477+2139 SLE 475 distance=61' 08439+2234 SLE 473 distance=66' 08460+2225 SKF 508 distance=66' 08423+2025 SLE 338 distance=67' 08413+2029 BU 585 distance=68' 08430+2020 BOV 51 distance=69' 08385+2133 BOV 37 distance=70' 08432+2020 DAM1475 distance=70' 08454+2026 KPP2015 distance=70' 08408+2028 SLW 276 distance=71' 08391+2045 SLE 331 distance=75' 08399+2032 TDS 484 distance=76' 08444+2014 KPP1155 distance=77' 08381+2107 SKF 699 distance=78' 08445+2012 SLE 339 distance=79' 08401+2023 SLE 334 distance=81' 08405+2019 BOV 45 distance=82' 08431+2250 POU3004 distance=82' 08419+2010 SLE 336AB distance=83' 08455+2246 POU3008 distance=84' 08375+2135 SKF 696 distance=84' 08433+2005 SLW 283 distance=85' 08484+2042 TOK 266 distance=85' 08378+2201 SLE 471 distance=86' 08423+2002 COU 382 distance=88' 08403+2012 BOV 40 distance=89' 08404+2006 PAT 46CJ distance=93' 08400+2009 ARN 105AB distance=93' 08393+2013 BOV 38 distance=96' 08365+2119 DBR 281 distance=98' 08397+2005 COU 47 distance=99' 08373+2219 TDS5987 distance=99' 08418+1952 OCC 638Fa,Fb distance=99' 08381+2023 SLE 330 distance=100' 08401+2000 PAT 44Ca,Cb distance=100' 08401+2000 SLE 335CS distance=100' 08401+2000 ENG 37AB distance=100' 08401+2000 ENG 37AC distance=100' 08401+2000 ENG 37AD distance=100' 08401+2000 SLE 685AR distance=100' 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 08433+2128 BUP 121 BD 103 95.6
Show Asellus Borealis 08433+2128 ENG 38 AB 67 115.9 2
Show Asellus Borealis 08433+2128 BUP 121 AC 259 92.0 2
Show 08445+2124 RAO 128 67 1.9 17
Show 08449+2137 RAO 124 346 2.5 23
Show 08454+2152 SLE 474 85 19.8 37
Show 08401+2104 OCC 658 -1 0.1 53
Show 08394+2123 MRA 9 184 0.2 57
Show 08465+2051 UC 125 230 16.9 58
Show 08417+2036 SLW 279 AB 219 169.8 58
Show 08417+2036 SLW 278 BC 87 78.2 61
Show 08477+2139 SLE 475 335 11.6 61
Show 08439+2234 SLE 473 15 16.7 66
Show 08460+2225 SKF 508 160 1.0 66
Show 08423+2025 SLE 338 14 11.6 67
Show 08413+2029 BU 585 72 0.3 68
Show 08430+2020 BOV 51 198 1.3 69
Show 08385+2133 BOV 37 172 0.2 70
Show 08432+2020 DAM1475 13 4.4 70
Show 08454+2026 KPP2015 180 16.0 70
Show 08408+2028 SLW 276 33 22.3 71
Show 08391+2045 SLE 331 181 13.6 75
Show 08399+2032 TDS 484 104 2.0 76
Show 08444+2014 KPP1155 315 9.0 77
Show 08381+2107 SKF 699 152 1.0 78
Show 08445+2012 SLE 339 121 6.7 79
Show 08401+2023 SLE 334 154 29.1 81
Show 08405+2019 BOV 45 188 0.1 82
Show 08431+2250 POU3004 123 5.1 82
Show 08419+2010 SLE 336 AB 329 31.6 83
Show 08455+2246 POU3008 182 11.6 84
Show 08375+2135 SKF 696 36 1.0 84
Show 08433+2005 SLW 283 186 19.8 85
Show 08484+2042 TOK 266 22 34.2 85
Show 08378+2201 SLE 471 54 8.4 86
Show 08423+2002 COU 382 348 0.3 88
Show 08403+2012 BOV 40 289 0.3 89
Show 08404+2006 PAT 46 CJ 153 0.4 93
Show 08400+2009 ARN 105 AB 153 91.2 93
Show 08393+2013 BOV 38 18 0.3 96
Show 08365+2119 DBR 281 314 5.9 98
Show 08397+2005 COU 47 140 0.6 99
Show 08373+2219 TDS5987 16 0.6 99
Show 08418+1952 OCC 638 Fa,Fb -1 0.0 99
Show 08381+2023 SLE 330 10 16.9 100
Show 08401+2000 PAT 44 Ca,Cb 22 0.3 100
Show 08401+2000 SLE 335 CS 340 137.1 100
Show 08401+2000 ENG 37 AB 150 151.8 100
Show 08401+2000 ENG 37 AC 309 134.0 100
Show 08401+2000 ENG 37 AD 111 134.9 100
Show 08401+2000 SLE 685 AR 150 290.3 100

 
 
WDS 08433+2128 : COMPONENTS
 
 
  A B C
B pa=66.4°
sep=113.68"
 
C pa=257.8°
sep=85.87"
pa=251.3°
sep=198.57"
 
D pa=82.8°
sep=192.30"
pa=103.9°
sep=89.27"
pa=81.2°
sep=277.94"
 
 
08433+2128 A
 
 
Common name Asellus Borealis Meaning Northern ass Coord arcsec 2000 084317.21+212806.9 Mag 4.65
Spectral class A1IV (white) PmRA -106.00 PmDE -39.0 SAO 80378
HIP 42806 Tycho2 1399-02905-1 HD 74198 HR 3449
GC 11982 BD BD+21 1895 Bayer Gamma Cancri Bayer name Gam Cnc
Flamsteed 43 Cancri Flamsteed name 43 Cnc FK5 1228
Tycho2
Tycho2 1399-02905-1 Pflag RAmdeg 130.82144280 DEmdeg 21.46849861
PmRA -106.4 PmDE -39.9 E RAmdeg 3 E DEmdeg 4
E pmRA 0.4 E pmDE 0.4 EpRAm 1990.90 EpDEm 1989.75
Num 32 Q RAmdeg 0.7 Q DEmdeg 0.8 Q pmRA 0.8
Q pmDE 0.8 BTmag 4.680 E BTmag 0.014 VTmag 4.654
E VTmag 0.009 Prox 999 TYC T HIP 42806
CCDM RAdeg 130.82170167 DEdeg 21.46859444 EpRA 1990 1.84
EpDE 1990 1.36 E RAdeg 3.2 E DEdeg 3.5 Posflg
Corr 0.2
SAO
SAO 80378 DelFlag RA1950 PmRA1950 -0.0074
DE1950 PmDE1950 -0.043 Vmag 4.7 SpType A0
Double code Source 74 CatNum 1228 DM BD+21 1895
DMcomp BDsup HD 74198 M HD 0
GC 11982 RA1950rad 2.27065167 DE1950rad 0.37785806 PmRA2000 -0.0075
PmDE2000 -0.039
Hipparcos
Catalog H HIP 42806 Proxy RAhms 08 43 17.21
DEdms +21 28 06.9 Vmag 4.66 VarFlag R Vmag G
RAdeg 130.822 DEdeg 21.4686 AstroRef Plx 20.58
CCDM 08433+2128 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 74198 BD BD+21 1895
CD CP Dm number +21 1895 VIred 0.03
SpType A1IV R SpType Coord arcsec 2000 084317.21+212806.9
Hipparcos 2
HIP 42806 Sn 5 So 0 Nc 1
RArad 2.2832697676 DErad 0.3746976891 Plx 18 PmRA -103.51
PmDE -39.48 E RArad 0.18 E DErad 0.11 E Plx 0.21
E pmRA 0.26 E pmDE 0.17 Hpmag 4.6734 E Hpmag 0.0006
SHp 0.004 VA 0 BV 0.01 E BV 0
VI 0.03
CCDM
Ccdm 08433+2128 RComp Comp A Note1
Note2 Discov num DRAs -0.85 DDEs 6.6
R dRAs 10 Year Theta Rho
Obs 4 Vmag 4.7 Sp A0 PmNote *
PmRA -103 PmDE -43 Dm number +21 1895 Cat1 BD
Name2 +21 970 Cat2 AGK2/3 HD 74198 M HD
ADS BDS M ADS BDS N IDS IDS 08375N2150A
HIC 42806
 
 
08433+2128 B
 
 
Coord arcsec 2000 084324.67+212852.5 Coord calc 084324.67+212852.5 Mag 10.2 Spectral class G5 (yellow)
PmRA -10.00 PmDE 3.0 Calc delta mag 5.55
CCDM
Ccdm 08433+2128 RComp Comp B Note1
Note2 Discov num BUP DRAs 6.69 DDEs 51.6
R dRAs 10 Year 1919 Theta 066 Rho 106.3
Obs 5 Vmag 8.7 Sp PmNote *
PmRA -2 PmDE -12 Dm number +21 1897 Cat1 BD
Name2 +21 971 Cat2 AGK2/3 HD M HD
ADS BDS M ADS BDS N IDS IDS 08375N2150B
HIC
 
 
08433+2128 C
 
 
Coord arcsec 2000 084311.20+212748.7 Mag 14.13 PmRA -9.00 PmDE 0.0
Calc delta mag 9.48 Calc coord yes
 
 
08433+2128 D
 
 
Coord arcsec 2000 084330.88+212831.0 Mag 14.95 PmRA -1.00 PmDE -3.0
Calc delta mag 10.3 Calc coord yes