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Current system
20051+2039
BUP 203 AB


Nearby doubles
18' : 20039+2034
COU 216

23' : 20036+2050
GRV 308

26' : 20033+2034
BRT2463

32' : 20045+2009
BRT2465

41' : 20072+2106
STF2631

47' : 20024+2105
HDS2855

48' : 20026+2006
HU 353

49' : 20063+1954
WAK 19

49' : 20042+1952
J 819

50' : 20023+2009
COU 215

50' : 20086+2041
BRT2467

50' : 20065+1957
J 1233AB

52' : 20082+2105
J 1168

62' : 20078+1950
WEB 12

62' : 20045+1937
J 3048

63' : 20040+1940
J 3046

69' : 20093+2004
HU 355

70' : 20004+2018
BRT2462

70' : 20076+2139
TDT2000

71' : 20099+2055
STF2637AB

72' : 20099+2100
S 737

73' : 20029+2145
HJ 2924

77' : 20037+1926
BRT2464

81' : 20108+2029
HDS2875

83' : 20063+2200
STJ 37

88' : 20102+2131
TDT2042



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

20051+2039 BUP 203 AB

 
 
20h 05m 04.91s +20° 38' 53.3" P.A. 247.00 sep 13.4 mag 8.75,13.50 Sp C6II
 
 
Coord 2000 20051+2039 Discov num BUP 203 Comp AB Coord arcsec 2000 20 05 04.91 +20 38 53.3
Date first 1895 Date last 2015 Obs 7
Pa first 249 Pa last 247.2 P.A. Now (θ) 247.2°
Sep first 13.0 Sep last 13.376 Sep. Now (ρ) 13.376"
Mag pri 8.75 Mag sec 13.50 delta mag (ΔM) 4.75 Spectral class C6II (red carbon star)
Pri motion ra +001 Sec motion ra +000
Pri motion dec -001 Sec motion dec -006
Notes N (See Notes)
rPM=0.85
This double is not physical.
 
 
20051+2039 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 05 05 +20 38 53 BUP 203 AB 2015 7 247 13.4 8.75 13.50 4.75 <===
Show 20 05 05 +20 38 53 BUP 203 AC 2015 8 102 59.4 8.75 12.97 4.22
Show HD 190606 20 05 05 +20 38 53 BLL 44 AD 2015 9 95 75.3 8.75 12.20 3.45
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name X Sge Constellation Sagitta HIP 98909 Tycho2 1629-01033-1
Gaia DR2 1823613843707604736 HD 190606 BD BD+20 4417
 
 
WDS 20051+2039 BUP 203 AB : NOTES
 
 
discov_num notes refcode
BUP 203 A is the semiregular variable X Sge, P = 196d.
 
 
REFERENCES
 
 
refcode metd author reference
Bll1872 orb - Ball, R.S. .
Bll1872 Proc. Royal Irish Acad., June 1872
Bll1884 Ma j Ball, R.S. 1884DunOP...5....1B
Bll1884 Pub. Dunsink Obs. 5, 1, 1884
Bll1913A Ma - Ball, R.S. 1913QB811.B8.......
Bll1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Bll1932A - Ball, R.S. 1932QB821.A43......
Bll1932A cited in ADS (Aitken Double Star Cat.), 1932
BUP Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913) 1913QB811.B8.......
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20051+2039 BUP 203 AB 1909 2 248 13.1 8.75 13.50 C6II N 200504.91+203853.3
20051+2039 BUP 203 AB 2001 3 247 13.2 8.75 13.50 C6II N 200504.91+203853.3
20051+2039 BUP 203 AB 2015 4 247 13.4 8.75 13.50 C6II N 200504.91+203853.3

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

 
 
WDS 20051+2039 BUP 203 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20051+2039 BUP 203 AB : MEASURES
 
 
No records found.

 
 
WDS 20051+2039 : VIRTUAL EYEPIECE
 
 

20051+2039 BUP 203A mag 8.75 Sp C6II 20051+2039 BUP 203B sep 12.7 P.A. 245.80 mag 13.5 20051+2039 BUP 203C sep 55.7 P.A. 103.00 mag 12.97 20051+2039 BLL 44D sep 70.5 P.A. 95.60 mag 12.2 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20051+2039 : ALADIN DSS IMAGE @ 20h 05m 04.91s +20° 38' 53.3"
 
 
 
 
WDS 20051+2039 BUP 203 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20051+2039 BUP 203AB distance=1' 20051+2039 BUP 203AC distance=1' 20051+2039 BLL 44AD distance=1' 20039+2034 COU 216 distance=18' 20036+2050 GRV 308 distance=23' 20033+2034 BRT2463 distance=26' 20045+2009 BRT2465 distance=32' 20072+2106 STF2631 distance=41' 20024+2105 HDS2855 distance=47' 20026+2006 HU 353 distance=48' 20063+1954 WAK 19 distance=49' 20042+1952 J 819 distance=49' 20023+2009 COU 215 distance=50' 20086+2041 BRT2467 distance=50' 20065+1957 J 1233AB distance=50' 20065+1957 DAM 191AC distance=50' 20065+1957 DAM 191BD distance=50' 20082+2105 J 1168 distance=52' 20078+1950 WEB 12 distance=62' 20045+1937 J 3048 distance=62' 20040+1940 J 3046 distance=63' 20093+2004 HU 355 distance=69' 20004+2018 BRT2462 distance=70' 20076+2139 TDT2000 distance=70' 20099+2055 STF2637BC distance=70' 20099+2055 STF2637AB distance=71' 20099+2055 STF2637AD distance=71' 20099+2055 STF2637AC distance=71' 20099+2100 S 737 distance=72' 20029+2145 HJ 2924 distance=73' 20037+1926 BRT2464 distance=77' 20108+2029 HDS2875 distance=81' 20063+2200 STJ 37 distance=83' 20102+2131 TDT2042 distance=88' 19588+2029 TDT1896 distance=89' 20113+2056 J 1875 distance=90' 19597+1947 J 1140AB distance=92' 19597+1947 J 1140AC distance=92' 20065+1908 STJ 26 distance=93' 19590+2118 TDT1899 distance=94' 20033+2209 OL 110 distance=94' 20062+1906 HJL 271 distance=95' 20115+2013 GRV 320 distance=96' 20113+2121 HO 587 distance=97' 20079+2207 BRT2466 distance=97' 20013+1917 J 784 distance=98' 20119+2020 J 1876 distance=99' 20035+2215 GII 49 distance=99' 20120+2100 HJ 907AB distance=100' 20120+2100 HJ 907AC distance=100' 19579+2032 BU 981AB distance=101' 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 20051+2039 BUP 203 AB 247 13.4 1
Show 20051+2039 BUP 203 AC 102 59.4 1
Show 20051+2039 BLL 44 AD 95 75.3 1
Show 20039+2034 COU 216 218 0.5 18
Show 20036+2050 GRV 308 213 38.1 23
Show 20033+2034 BRT2463 13 3.2 26
Show 20045+2009 BRT2465 209 3.0 32
Show 20072+2106 STF2631 339 4.7 41
Show 20024+2105 HDS2855 146 0.1 47
Show 20026+2006 HU 353 3 0.5 48
Show 20063+1954 WAK 19 166 2.0 49
Show 20042+1952 J 819 134 2.1 49
Show 20023+2009 COU 215 269 0.3 50
Show 20086+2041 BRT2467 55 4.4 50
Show 20065+1957 J 1233 AB 245 6.9 50
Show 20065+1957 DAM 191 AC 179 9.8 50
Show 20065+1957 DAM 191 BD 218 9.8 50
Show 20082+2105 J 1168 193 0.9 52
Show 20078+1950 WEB 12 77 40.1 62
Show 20045+1937 J 3048 272 5.9 62
Show 20040+1940 J 3046 99 5.2 63
Show 20093+2004 HU 355 352 1.2 69
Show 20004+2018 BRT2462 288 2.9 70
Show 20076+2139 TDT2000 71 0.7 70
Show 20099+2055 STF2637 BC 215 95.7 70
Show 20099+2055 STF2637 AB 331 11.6 71
Show 20099+2055 STF2637 AD 226 172.8 71
Show 20099+2055 STF2637 AC 222 91.9 71
Show 20099+2100 S 737 128 101.0 72
Show 20029+2145 HJ 2924 345 15.1 73
Show 20037+1926 BRT2464 181 7.4 77
Show 20108+2029 HDS2875 231 0.3 81
Show 20063+2200 STJ 37 198 1.4 83
Show 20102+2131 TDT2042 359 0.6 88
Show 19588+2029 TDT1896 38 0.6 89
Show 20113+2056 J 1875 100 8.8 90
Show 19597+1947 J 1140 AB 282 2.1 92
Show 19597+1947 J 1140 AC 324 17.1 92
Show 20065+1908 STJ 26 276 1.0 93
Show 19590+2118 TDT1899 295 0.5 94
Show 20033+2209 OL 110 331 8.3 94
Show 20062+1906 HJL 271 342 18.7 95
Show 20115+2013 GRV 320 152 31.3 96
Show 20113+2121 HO 587 65 11.5 97
Show 20079+2207 BRT2466 185 8.1 97
Show 20013+1917 J 784 165 2.2 98
Show 20119+2020 J 1876 99 8.2 99
Show 20035+2215 GII 49 331 4.2 99
Show 20120+2100 HJ 907 AB 137 5.7 100
Show 20120+2100 HJ 907 AC 229 20.1 100
Show 19579+2032 BU 981 AB 107 3.0 101

 
 
WDS 20051+2039 : COMPONENTS
 
 
  A B C
B pa=245.8°
sep=12.65"
 
C pa=103.0°
sep=55.72"
pa=96.4°
sep=66.24"
 
D pa=95.6°
sep=70.52"
pa=91.2°
sep=81.74"
pa=70.2°
sep=16.89"
 
 
20051+2039 A
 
 
Var name X Sge Coord arcsec 2000 200504.91+203853.3 Mag 8.75 Spectral class C6II (red carbon star)
PmRA 1.00 PmDE -1.0 HIP 98909 Tycho2 1629-01033-1
HD 190606 BD BD+20 4417
Tycho2
Tycho2 1629-01033-1 Pflag RAmdeg 301.27048901 DEmdeg 20.64816064
PmRA 1.4 PmDE -0.9 E RAmdeg 13 E DEmdeg 15
E pmRA 1.2 E pmDE 1.2 EpRAm 1990.38 EpDEm 1989.77
Num 8 Q RAmdeg 1.5 Q DEmdeg 0.9 Q pmRA 1.5
Q pmDE 0.9 BTmag 13.257 E BTmag 0.415 VTmag 8.751
E VTmag 0.017 Prox 999 TYC T HIP
CCDM RAdeg 301.27048500 DEdeg 20.64816194 EpRA 1990 1.73
EpDE 1990 1.52 E RAdeg 12.5 E DEdeg 15.1 Posflg
Corr 0.1
Hipparcos
Catalog H HIP 98909 Proxy RAhms 20 05 05.43
DEdms +20 38 48.5 Vmag 8.22 VarFlag 2 R Vmag H
RAdeg DEdeg AstroRef Plx
CCDM 20051+2039 N CCDM I Nsys 1 Ncomp
MultFlag Source Qual S M HIP
Theta Rho HD 190606 BD BD+20 4417
CD CP Dm number +20 4417 VIred 2.45
SpType C6II R SpType Coord arcsec 2000 200505.43+203848.5
CCDM
Ccdm 20051+2039 RComp Comp A Note1
Note2 Discov num DRAs -0.49 DDEs -12.2
R dRAs 12 Year Theta Rho
Obs 4 Vmag Sp NB PmNote
PmRA 1 PmDE -27 Dm number +20 4417 Cat1 BD
Name2 +20 2188 Cat2 AGK2/3 HD 190606 M HD
ADS BDS M ADS BDS N IDS IDS 20007N2021A
HIC 98909
 
 
20051+2039 B
 
 
Coord arcsec 2000 200504.09+203848.1 Mag 13.5 PmRA 0.00 PmDE -6.0
Calc delta mag 4.75 Calc coord yes
CCDM
Ccdm 20051+2039 RComp Comp B Note1
Note2 Discov num BUP DRAs DDEs
R dRAs Year 1909 Theta 248 Rho 13.1
Obs 1 Vmag 13.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS IDS 20007N2021B
HIC
 
 
20051+2039 C
 
 
Coord arcsec 2000 200508.78+203840.8 Mag 12.97 PmRA 2.00 PmDE 4.0
Calc delta mag 4.22 Calc coord yes
CCDM
Ccdm 20051+2039 RComp Comp C Note1
Note2 Discov num BUP DRAs DDEs
R dRAs Year 1909 Theta 104 Rho 59.2
Obs 1 Vmag 12.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20007N2021C
HIC
 
 
20051+2039 D
 
 
Coord arcsec 2000 200509.91+203846.5 Mag 12.2 PmRA -3.00 PmDE 0.0
Calc delta mag 3.45 Calc coord yes
CCDM
Ccdm 20051+2039 RComp Comp D Note1
Note2 Discov num BUP DRAs DDEs
R dRAs Year 1879 Theta 096 Rho 77.1
Obs 3 Vmag 12.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20007N2021D
HIC