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Doubles in session


Current system
20544+4042
STT 420
HD 199218


Nearby doubles
4' : 20546+4042
ES 1685AB

27' : 20526+4024
GRV 391

29' : 20542+4111
ES 1684

33' : 20555+4112
ES 1686

34' : 20539+4115
KPP1503

39' : 20511+4051
TDT2578

40' : 20516+4106
ES 1683

40' : 20576+4058
A 400

41' : 20556+4004
TDT2634

43' : 20581+4043
COU2430AB

43' : 20520+4009
MLB 955

43' : 20572+4110
HDS2986

50' : 20569+4122
LDS2471

54' : 20558+3951
LDS2469

56' : 20508+4120
TDT2575

57' : 20495+4035
COU2426

57' : 20509+4123
LDS2458

57' : 20539+4139
BRT2280

58' : 20510+4125
COU2427

59' : 20534+4139
ES 1574

60' : 20553+3944
SEI1315

60' : 20525+4138
LDS2463

61' : 20585+4121
BLL 53

62' : 20514+4134
LDS2460

62' : 20551+3941
MLB 886

63' : 20555+3940
MLB 783



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.

20544+4042 STT 420 (HD 199218)

 
 
20h 54m 22.25s +40° 42' 10.6" P.A. 2.00 sep 5.8 mag 6.69,10.50 Sp B8Vnne dist. 248.14 pc (809.43 l.y.)
 
 
Coord 2000 20544+4042 Discov num STT 420 Comp Coord arcsec 2000 20 54 22.25 +40 42 10.6
Date first 1848 Date last 2016 Obs 19
Pa first 5 Pa last 1.6 P.A. Now (θ) 1.6°
Sep first 5.8 Sep last 5.799 Sep. Now (ρ) 5.799"
Mag pri 6.69 Mag sec 10.50 delta mag (ΔM) 3.81 Spectral class B8Vnne (blue-white)
Pri motion ra +002 Sec motion ra
Pri motion dec -004 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 199218 Constellation Cygnus SAO 50209 HIP 103189
Tycho2 3171-01117-1 Gaia DR2 2065490287079134720 HD 199218 HR 8009
GC 29182 ADS 14413 BD BD+40 4354 Distance 248.14
Distance ly 809.43
 
 
WDS 20544+4042 STT 420 (HD 199218) : 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
20544+4042 STT 420 2002 15 1 5.8 6.70 10.70 B8Vnne D 205422.25+404210.6
20544+4042 STT 420 2008 16 0 5.4 6.70 10.70 B8Vnne D 205422.25+404210.6
20544+4042 STT 420 2015 18 2 5.5 6.69 10.50 B8Vnne 205422.25+404210.6
20544+4042 STT 420 2016 19 2 5.8 6.69 10.50 B8Vnne 205422.25+404210.6

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

 
 
WDS 20544+4042 STT 420 (HD 199218) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20544+4042 STT 420 (HD 199218) : MEASURES
 
 
No records found.

 
 
WDS 20544+4042 (HD 199218) : VIRTUAL EYEPIECE
 
 

20544+4042 STT 420A mag 6.69 Sp B8Vnne 20544+4042 STT 420B sep 5.8 P.A. 1.20 mag 10.5 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 20544+4042 (HD 199218) : ALADIN DSS IMAGE @ 20h 54m 22.25s +40° 42' 10.6"
 
 
 
 
WDS 20544+4042 STT 420 (HD 199218) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20544+4042 STT 420 distance=0' 20546+4042 ES 1685AB distance=4' 20546+4042 ES 1685BC distance=5' 20526+4024 GRV 391 distance=27' 20542+4111 ES 1684 distance=29' 20555+4112 ES 1686 distance=33' 20539+4115 KPP1503 distance=34' 20511+4051 TDT2578 distance=39' 20516+4106 ES 1683 distance=40' 20576+4058 A 400 distance=40' 20556+4004 TDT2634 distance=41' 20581+4043 COU2430AB distance=43' 20581+4043 COU2430AB,C distance=43' 20520+4009 MLB 955 distance=43' 20572+4110 HDS2986 distance=43' 20569+4122 LDS2471 distance=50' 20599+4016 HDS2989Da,Db distance=54' 20599+4016 RAO 72DE distance=54' 20558+3951 LDS2469 distance=54' 20508+4120 TDT2575 distance=56' 20495+4035 COU2426 distance=57' 20509+4123 LDS2458 distance=57' 20539+4139 BRT2280 distance=57' 20510+4125 COU2427 distance=58' 20534+4139 ES 1574 distance=59' 20553+3944 SEI1315 distance=60' 20525+4138 LDS2463 distance=60' 20585+4121 BLL 53 distance=61' 20514+4134 LDS2460 distance=62' 20551+3941 MLB 886 distance=62' 20555+3940 MLB 783 distance=63' 20531+3940 SEI1292 distance=65' 20519+4140 COU2428 distance=65' 20545+3937 BRT2281 distance=66' 20488+4024 ALI1192 distance=67' 20577+3943 COU2429 distance=68' 20485+4041 ES 1682 distance=68' 20514+3945 MLB 779AB distance=68' 20514+3945 DAM 316AC distance=68' 20514+3945 DAM 316AD distance=68' 20498+3958 SEI1267 distance=68' 21002+4027 TDT2688 distance=68' 20599+4016 BUP 221BC distance=69' 20588+3957 TDT2670 distance=69' 20515+3944 DAM 317AB distance=69' 20515+3944 DAM 317AC distance=69' 20599+4016 COU2431Aa,Ab distance=69' 20599+4016 ENG 79AB distance=69' 20599+4016 LEP 98AD distance=69' 20599+4016 BUP 221AC distance=69' 20599+4016 LSC 1Aa1,2 distance=69' 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 20544+4042 STT 420 2 5.8
Show 20546+4042 ES 1685 AB 73 24.2 4
Show 20546+4042 ES 1685 BC 74 2.8 5
Show 20526+4024 GRV 391 144 59.5 27
Show 20542+4111 ES 1684 277 7.9 29
Show 20555+4112 ES 1686 196 7.7 33
Show 20539+4115 KPP1503 94 11.3 34
Show 20511+4051 TDT2578 81 2.6 39
Show 20516+4106 ES 1683 205 5.2 40
Show 20576+4058 A 400 69 1.9 40
Show 20556+4004 TDT2634 54 1.9 41
Show 20581+4043 COU2430 AB 254 0.4 43
Show 20581+4043 COU2430 AB,C 176 3.0 43
Show 20520+4009 MLB 955 27 6.6 43
Show 20572+4110 HDS2986 176 0.1 43
Show 20569+4122 LDS2471 43 3.2 50
Show 20599+4016 HDS2989 Da,Db 143 0.1 54
Show 20599+4016 RAO 72 DE 118 19.8 54
Show 20558+3951 LDS2469 2 3.3 54
Show 20508+4120 TDT2575 4 2.6 56
Show 20495+4035 COU2426 328 1.2 57
Show 20509+4123 LDS2458 123 14.1 57
Show 20539+4139 BRT2280 192 5.0 57
Show 20510+4125 COU2427 312 0.5 58
Show 20534+4139 ES 1574 158 1.4 59
Show 20553+3944 SEI1315 281 29.0 60
Show 20525+4138 LDS2463 151 27.8 60
Show 20585+4121 BLL 53 352 169.0 61
Show 20514+4134 LDS2460 195 8.4 62
Show 20551+3941 MLB 886 141 7.0 62
Show 20555+3940 MLB 783 288 5.6 63
Show 20531+3940 SEI1292 205 24.8 65
Show 20519+4140 COU2428 113 0.7 65
Show 20545+3937 BRT2281 73 3.6 66
Show 20488+4024 ALI1192 2 16.5 67
Show 20577+3943 COU2429 209 0.8 68
Show 20485+4041 ES 1682 152 3.1 68
Show 20514+3945 MLB 779 AB 124 9.0 68
Show 20514+3945 DAM 316 AC 79 6.3 68
Show 20514+3945 DAM 316 AD 304 13.8 68
Show 20498+3958 SEI1267 308 3.1 68
Show 21002+4027 TDT2688 104 0.5 68
Show 20599+4016 BUP 221 BC 107 203.7 69
Show 20588+3957 TDT2670 6 0.5 69
Show 20515+3944 DAM 317 AB 95 14.8 69
Show 20515+3944 DAM 317 AC 357 15.2 69
Show 20599+4016 COU2431 Aa,Ab 205 2.2 69
Show 20599+4016 ENG 79 AB 219 165.9 69
Show 20599+4016 LEP 98 AD 258 999.9 69
Show 20599+4016 BUP 221 AC 154 210.3 69
Show 20599+4016 LSC 1 Aa1,2 257 0.0 69

 
 
WDS 20544+4042 : COMPONENTS
 
 
  A
B pa=1.2°
sep=5.80"
 
 
20544+4042 A
 
 
Componente originario normalizzato AB Name HD 199218 Coord arcsec 2000 205422.25+404210.6 Mag 6.69
Spectral class B8Vnne (blue-white) PmRA 2.00 PmDE -4.0 SAO 50209
HIP 103189 Tycho2 3171-01117-1 HD 199218 HR 8009
GC 29182 BD BD+40 4354
Tycho2
Tycho2 3171-01117-1 Pflag RAmdeg 313.59272631 DEmdeg 40.70295713
PmRA 8.0 PmDE 0.0 E RAmdeg 4 E DEmdeg 4
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.41 EpDEm 1991.44
Num 12 Q RAmdeg 0.5 Q DEmdeg 0.5 Q pmRA 0.5
Q pmDE 0.6 BTmag 6.589 E BTmag 0.014 VTmag 6.687
E VTmag 0.010 Prox 999 TYC T HIP 103189
CCDM RAdeg 313.59270167 DEdeg 40.70295722 EpRA 1990 1.60
EpDE 1990 1.63 E RAdeg 3.7 E DEdeg 3.6 Posflg
Corr 0.0
SAO
SAO 50209 DelFlag RA1950 PmRA1950 0.0006
DE1950 PmDE1950 0.006 Vmag 6.5 SpType B8
Double code Source 70 CatNum 29182 DM BD+40 4354
DMcomp BDsup HD 199218 M HD 0
GC 29182 RA1950rad 5.46506881 DE1950rad 0.70706582 PmRA2000 0.0009
PmDE2000 0.003
Hipparcos
Catalog H HIP 103189 Proxy RAhms 20 54 22.25
DEdms +40 42 10.6 Vmag 6.69 VarFlag R Vmag H
RAdeg 313.593 DEdeg 40.703 AstroRef Plx 4.82
CCDM 20544+4042 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 199218 BD BD+40 4354
CD CP Dm number +40 4354 VIred -0.07
SpType B8Vnn R SpType Coord arcsec 2000 205422.25+404210.6
Hipparcos 2
HIP 103189 Sn 5 So 0 Nc 1
RArad 5.4732251327 DErad 0.7104006063 Plx 4.03 PmRA 8.3
PmDE 1.22 E RArad 0.29 E DErad 0.32 E Plx 0.42
E pmRA 0.33 E pmDE 0.41 Hpmag 6.6641 E Hpmag 0.0006
SHp 0.008 VA 0 BV -0.081 E BV 0.005
VI -0.06
CCDM
Ccdm 20544+4042 RComp Comp A Note1
Note2 Discov num DRAs -1.80 DDEs 10.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.5 Sp B8 PmNote *
PmRA 3 PmDE -9 Dm number +40 4354 Cat1 BD
Name2 +40 2126 Cat2 AGK2/3 HD 199218 M HD
ADS BDS A14413 M ADS BDS N IDS IDS 20506N4019A
HIC 103189
 
 
20544+4042 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205422.26+404216.4 Mag 10.5 Calc delta mag 3.81
Calc coord yes
CCDM
Ccdm 20544+4042 RComp Comp B Note1
Note2 Discov num STT 420 DRAs -1.78 DDEs 16.1
R dRAs 90 Year 1848 Theta 003 Rho 5.8
Obs 9 Vmag 10.7 Sp PmNote
PmRA 3 PmDE -9 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14413 M ADS BDS N IDS IDS 20506N4019B
HIC 103189