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Current system
21037+3104
STT 427
HD 200631


Nearby doubles
13' : 21050+3109
J 3124

15' : 21047+3109
DAM 226

17' : 21046+3116
J 2336

22' : 21020+3107
TDT2706

25' : 21020+3052
LDS2937

26' : 21031+3039
GRV 407

26' : 21037+3130
TDT2721

27' : 21026+3041
COU1182

32' : 21052+3127
GRV 412

33' : 21056+3043
TDT2737

38' : 21034+3025
SMA 123

44' : 21025+3146
ES 374AB

48' : 21064+3031
TDT2751

50' : 21073+3048
TDT2766

53' : 20598+3048
TDT2681

53' : 21003+3134
KPP1379

54' : 21010+3145
TDT2695

55' : 20598+3126
GYL 44

55' : 21074+3038
TDT2767

58' : 21080+3116
LDS2940

58' : 21079+3123
GRV 421

60' : 21004+3022
COU1179

60' : 20593+3043
TDT2677

63' : 21010+3156
STJ 61

67' : 21077+3022
UC 256

67' : 21088+3102
ES 375



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.

21037+3104 STT 427 (HD 200631)

 
 
21h 03m 39.87s +31° 03' 44.7" P.A. 153.00 sep 4.1 mag 7.83,10.80 Sp K2
 
 
Coord 2000 21037+3104 Discov num STT 427 Comp Coord arcsec 2000 21 03 39.87 +31 03 44.7
Date first 1846 Date last 2015 Obs 12
Pa first 152 Pa last 152.9 P.A. Now (θ) 152.9°
Sep first 5.3 Sep last 4.129 Sep. Now (ρ) 4.129"
Mag pri 7.83 Mag sec 10.80 delta mag (ΔM) 2.97 Spectral class K2 (yellow-orange)
Pri motion ra +020 Sec motion ra
Pri motion dec -010 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 200631 Constellation Cygnus SAO 70845 Tycho2 2701-01188-1
Gaia DR2 1864643563190293120 HD 200631
 
 
WDS 21037+3104 STT 427 (HD 200631) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
STTA (O. Struve DD - Appendix list) ...................
Stt1864 Ma - Struve, O. 1864MNRAS..24..149S
Stt1864 MNRAS 24, 149, 1864
Stt1866 orb - Struve, O. .
Stt1866 Bull. Imp. Acad. Sci. St. Petersburg, 1866
Stt1874 orb - Struve, O. .
Stt1874 Compte Rendus 79, 1467, 1874
Stt1875 orb - Struve, O. 1875MNRAS..35..367S
Stt1875 MNRAS 35, 367, 1875
Stt1878 Ma - Struve, O. 1878ObPul...9....1S
Stt1878 Pulkova Observations 9, 1, 1878
Stt1879A Ma - Struve, O. 1879Obs.....2..304G
Stt1879A cited by Gledhill (Obs 2, 304, 1879)
Stt1879B Ma - Struve, O. 1879Obs.....3..245G
Stt1879B cited by Gledhill (Obs 3, 245, 1879)
Stt1879C Ma - Struve, O. 1879Obs.....2..344G
Stt1879C cited by Gledhill (Obs 2, 344, 1879)
Stt1880A Ma - Struve, O. 1880Obs.....2..605H
Stt1880A cited by Hunt (Obs. 3, 605, 1880)
Stt1880B Ma - Struve, O. 1880Obs.....3..535G
Stt1880B cited by Gledhill (Obs 3, 535, 1880)
Stt1880C Ma - Struve, O. 1880MNRAS..40..497B
Stt1880C cited by Burnham (MNRAS 40, 497, 1880)
Stt1884A Ma - Struve, O. 1884AReg...22..216S
Stt1884A cited by Sadler (Astr. Register 22, 216, 1884)
Stt1893a Ma j Struve, O. 1893ObPul..10....1S
Stt1893a Pulkova Obs. Observations 10, 1, 1893
Stt1906A Ma - Struve, O. 1906MmRAS..56....1L
Stt1906A cited by Lewis (MemRAS 56, 1, 1906)
Stt1906B Ma j Struve, O. 1906QB821.B972.....
Stt1906B cited in BDS (Burnham Double Star Cat., 1906)
Stt1908A Ma - Struve, O. 1908MNRAS..68..465B
Stt1908A cited by Barnard (MNRAS 68, 465, 1908)
Stt1913A Ma - Struve, O. 1913QB811.B8.......
Stt1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Stt1914A Ma - Struve, O. 1914AN....198..107R
Stt1914A cited by Rabe (AN 198, 107, 1914)
Stt1932A Ma - Struve, O. 1932QB821.A43......
Stt1932A cited in ADS (Aitken Double Star Cat., 1932)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21037+3104 STT 427 1988 10 151 4.2 7.83 11.90 K2 D 210339.87+310344.7
21037+3104 STT 427 2015 12 153 4.1 7.83 10.80 K2 210339.87+310344.7

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

 
 
WDS 21037+3104 STT 427 (HD 200631) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21037+3104 STT 427 (HD 200631) : MEASURES
 
 
No records found.

 
 
WDS 21037+3104 (HD 200631) : VIRTUAL EYEPIECE
 
 

21037+3104 STT 427A mag 7.83 Sp K2 21037+3104 STT 427B sep 4.0 P.A. 156.30 mag 10.8 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21037+3104 (HD 200631) : ALADIN DSS IMAGE @ 21h 03m 39.87s +31° 03' 44.7"
 
 
 
 
WDS 21037+3104 STT 427 (HD 200631) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21037+3104 STT 427 distance=0' 21050+3109 J 3124 distance=13' 21047+3109 DAM 226 distance=15' 21046+3116 J 2336 distance=17' 21020+3107 TDT2706 distance=22' 21020+3052 LDS2937 distance=25' 21031+3039 GRV 407 distance=26' 21037+3130 TDT2721 distance=26' 21026+3041 COU1182 distance=27' 21052+3127 GRV 412 distance=32' 21056+3043 TDT2737 distance=33' 21034+3025 SMA 123 distance=38' 21025+3146 CRB 15BD distance=43' 21025+3146 ES 374BC distance=43' 21025+3146 ES 374AB distance=44' 21064+3031 TDT2751 distance=48' 21073+3048 TDT2766 distance=50' 20598+3048 TDT2681 distance=53' 21003+3134 KPP1379 distance=53' 21010+3145 TDT2695 distance=54' 20598+3126 GYL 44 distance=55' 21074+3038 TDT2767 distance=55' 21080+3116 LDS2940 distance=58' 21079+3123 GRV 421 distance=58' 21004+3022 COU1179 distance=60' 20593+3043 TDT2677 distance=60' 21010+3156 STJ 61 distance=63' 21077+3022 UC 256 distance=67' 21088+3102 ES 375 distance=67' 21025+2958 COU1181 distance=68' 21029+3211 GRV 405 distance=69' 21086+3135 J 2337 distance=70' 20595+3019 J 847 distance=71' 21077+3009 KPP1031 distance=76' 20593+3155 COU1178 distance=76' 21057+3215 KU 130 distance=76' 21070+3001 J 1319 distance=77' 21093+3131 COU1333 distance=78' 20589+3015 ES 373 distance=78' 21099+3100 HJ 1616AB distance=80' 21099+3100 GRV 431AC distance=80' 21092+3023 CBL 90 distance=82' 21068+3215 WFC 259 distance=82' 21086+3012 STF2762AB distance=83' 21086+3012 STF2762AC distance=83' 21086+3012 STF2762AD distance=83' 21068+3222 ES 2439 distance=85' 21069+3218 TDT2761 distance=85' 21086+3201 KPP 830 distance=86' 21098+3143 ES 2440 distance=88' 21009+3224 TDT2694 distance=88' 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 21037+3104 STT 427 153 4.1
Show 21050+3109 J 3124 208 4.5 13
Show 21047+3109 DAM 226 16 4.3 15
Show 21046+3116 J 2336 40 9.1 17
Show 21020+3107 TDT2706 204 0.6 22
Show 21020+3052 LDS2937 140 55.9 25
Show 21031+3039 GRV 407 221 59.2 26
Show 21037+3130 TDT2721 43 2.1 26
Show 21026+3041 COU1182 180 1.0 27
Show 21052+3127 GRV 412 265 42.4 32
Show 21056+3043 TDT2737 322 6.3 33
Show 21034+3025 SMA 123 145 7.2 38
Show 21025+3146 CRB 15 BD 241 5.6 43
Show 21025+3146 ES 374 BC 203 4.5 43
Show 21025+3146 ES 374 AB 137 26.8 44
Show 21064+3031 TDT2751 148 2.4 48
Show 21073+3048 TDT2766 193 1.9 50
Show 20598+3048 TDT2681 215 0.5 53
Show 21003+3134 KPP1379 160 10.3 53
Show 21010+3145 TDT2695 172 0.8 54
Show 20598+3126 GYL 44 2 51.2 55
Show 21074+3038 TDT2767 173 10.5 55
Show 21080+3116 LDS2940 222 7.6 58
Show 21079+3123 GRV 421 185 14.6 58
Show 21004+3022 COU1179 359 0.9 60
Show 20593+3043 TDT2677 133 0.8 60
Show 21010+3156 STJ 61 136 1.5 63
Show 21077+3022 UC 256 67 48.1 67
Show 21088+3102 ES 375 42 4.5 67
Show 21025+2958 COU1181 214 0.7 68
Show 21029+3211 GRV 405 253 14.0 69
Show 21086+3135 J 2337 349 6.2 70
Show 20595+3019 J 847 129 2.2 71
Show 21077+3009 KPP1031 334 8.3 76
Show 20593+3155 COU1178 16 1.2 76
Show 21057+3215 KU 130 57 19.4 76
Show 21070+3001 J 1319 206 1.7 77
Show 21093+3131 COU1333 258 0.6 78
Show 20589+3015 ES 373 136 2.3 78
Show 21099+3100 HJ 1616 AB 315 10.3 80
Show 21099+3100 GRV 431 AC 16 22.5 80
Show 21092+3023 CBL 90 113 54.5 82
Show 21068+3215 WFC 259 118 10.8 82
Show 21086+3012 STF2762 AB 303 3.3 83
Show 21086+3012 STF2762 AC 229 59.3 83
Show 21086+3012 STF2762 AD 66 73.1 83
Show 21068+3222 ES 2439 164 4.3 85
Show 21069+3218 TDT2761 236 0.4 85
Show 21086+3201 KPP 830 310 7.1 86
Show 21098+3143 ES 2440 202 5.0 88
Show 21009+3224 TDT2694 148 10.2 88

 
 
WDS 21037+3104 : COMPONENTS
 
 
  A
B pa=156.3°
sep=4.01"
 
 
21037+3104 A
 
 
Componente originario normalizzato AB Name HD 200631 Coord arcsec 2000 210339.87+310344.7 Mag 7.83
Spectral class K2 (yellow-orange) PmRA 20.00 PmDE -10.0 SAO 70845
Tycho2 2701-01188-1 HD 200631 DM BD+30 4299
Tycho2
Tycho2 2701-01188-1 Pflag RAmdeg 315.91615714 DEmdeg 31.06242427
PmRA 8.0 PmDE 2.7 E RAmdeg 6 E DEmdeg 5
E pmRA 1.5 E pmDE 1.4 EpRAm 1991.11 EpDEm 1991.44
Num 8 Q RAmdeg 1.2 Q DEmdeg 1.6 Q pmRA 1.2
Q pmDE 1.6 BTmag 9.120 E BTmag 0.017 VTmag 7.829
E VTmag 0.011 Prox 999 TYC T HIP
CCDM RAdeg 315.91613444 DEdeg 31.06241833 EpRA 1990 1.45
EpDE 1990 1.65 E RAdeg 5.5 E DEdeg 4.9 Posflg
Corr 0.0
SAO
SAO 70845 DelFlag RA1950 PmRA1950 0.0024
DE1950 PmDE1950 -0.01 Vmag 7.5 SpType K2
Double code Source 6 CatNum 2261 DM BD+30 4299
DMcomp BDsup HD 200631 M HD 0
GC RA1950rad 5.50463126 DE1950rad 0.53866529 PmRA2000 0.0025
PmDE2000 -0.013
CCDM
Ccdm 21037+3104 RComp Comp A Note1
Note2 Discov num DRAs -2.10 DDEs -15.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.8 Sp K2 PmNote *
PmRA 22 PmDE 0 Dm number +30 4299 Cat1 BD
Name2 +30 2261 Cat2 AGK2/3 HD 200631 M HD
ADS BDS A14597 M ADS BDS N IDS IDS 20595N3040A
HIC
 
 
21037+3104 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 210340.00+310341.0 Mag 10.8 Calc delta mag 2.97
Calc coord yes
CCDM
Ccdm 21037+3104 RComp Comp B Note1
Note2 Discov num STT 427 DRAs DDEs
R dRAs Year 1846 Theta 149 Rho 5.3
Obs 8 Vmag 11.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14597 M ADS BDS N IDS IDS 20595N3040B
HIC