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Doubles in session


Current system
20500+0533
STTA 210 AB
HD 198404


Nearby doubles
8' : 20496+0538
GWP3002

18' : 20511+0526
GCB 59

24' : 20514+0524
TOB 313

27' : 20488+0512
J 2321AB

32' : 20519+0544
A 613

34' : 20492+0502
HDS2967

40' : 20478+0555
TDT2543

41' : 20527+0527
J 572

42' : 20526+0517
GCB 75

42' : 20506+0453
BAL2974

42' : 20529+0529
GCB 60

43' : 20478+0600
BU 65

54' : 20511+0623
STF2730

54' : 20533+0551
UC 4318

67' : 20516+0431
KPP1501

71' : 20459+0607
TDT2523

71' : 20464+0618
TDT2533

71' : 20455+0553
HDS2954

71' : 20484+0426
AG 267

73' : 20540+0614
TDT2616

74' : 20533+0627
TDT2607

76' : 20539+0620
TDS1107

79' : 20473+0426
UC 4288

80' : 20458+0445
BAL2971

80' : 20530+0427
TDT2603

86' : 20525+0416
TDT2595



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.

20500+0533 STTA 210 AB (HD 198404)

 
 
20h 49m 59.10s +05° 32' 40.4" P.A. 127.00 sep 78.2 mag 6.30,9.18 Sp K0 dist. 126.74 pc (413.43 l.y.)
 
 
Coord 2000 20500+0533 Discov num STTA210 Comp AB Coord arcsec 2000 20 49 59.10 +05 32 40.4
Date first 1875 Date last 2014 Obs 24
Pa first 122 Pa last 127.1 P.A. Now (θ) 127.1°
Sep first 81.9 Sep last 78.2 Sep. Now (ρ) 78.2"
Mag pri 6.30 Mag sec 9.18 delta mag (ΔM) 2.88 Spectral class K0 (yellow-orange)
Pri motion ra +044 Sec motion ra -011
Pri motion dec +001 Sec motion dec -032
Notes N (See Notes)
rPM=1.457
This double is not physical.
 
 
20500+0533 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 198404 126267 20 49 59 +05 32 40 STTA 210 AB 2014 24 127 78.2 6.30 9.18 2.88 <===
Show 20 50 03 +05 31 53 STTA 210 BC 2015 6 222 12.4 9.18 14.70 5.52
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 198404 Constellation Delphinus SAO 126267 HIP 102833
Tycho2 0520-02792-1 Gaia DR2 1735641639169396864 HD 198404 HR 7975
GC 29044 BD BD+05 4626 Distance 126.74 Distance ly 413.43
 
 
WDS 20500+0533 STTA 210 AB (HD 198404) : NOTES
 
 
discov_num notes refcode
STTA210 B is BD+04@4556.
 
 
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
20500+0533 STTA210 AB 2010 22 127 78.5 6.30 9.13 K0 N D 204959.10+053240.4
20500+0533 STTA210 AB 2014 24 127 78.2 6.30 9.18 K0 N 204959.10+053240.4

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

 
 
WDS 20500+0533 STTA 210 AB (HD 198404) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20500+0533 STTA 210 AB (HD 198404) : MEASURES
 
 
No records found.

 
 
WDS 20500+0533 (HD 198404) : VIRTUAL EYEPIECE
 
 

20500+0533 STTA210A mag 6.3 Sp K0 20500+0533 STTA210B sep 78.6 P.A. 126.70 mag 9.18 Sp K0 20500+0533 STTA210C sep 78.5 P.A. 135.70 mag 14.7 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 20500+0533 (HD 198404) : ALADIN DSS IMAGE @ 20h 49m 59.10s +05° 32' 40.4"
 
 
 
 
WDS 20500+0533 STTA 210 AB (HD 198404) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20500+0533 STTA210AB distance=0' 20500+0533 STTA210BC distance=2' 20496+0538 GWP3002 distance=8' 20511+0526 GCB 59 distance=18' 20514+0524 TOB 313 distance=24' 20488+0512 J 2321AB distance=27' 20488+0512 OSO 135AC distance=27' 20519+0544 A 613 distance=32' 20492+0502 HDS2967 distance=34' 20478+0555 TDT2543 distance=40' 20527+0527 J 572 distance=41' 20526+0517 GCB 75 distance=42' 20506+0453 BAL2974 distance=42' 20529+0529 GCB 60 distance=42' 20478+0600 BU 65 distance=43' 20511+0623 STF2730 distance=54' 20533+0551 UC 4318 distance=54' 20516+0431 KPP1501 distance=67' 20459+0607 TDT2523 distance=71' 20464+0618 TDT2533 distance=71' 20455+0553 HDS2954 distance=71' 20484+0426 AG 267 distance=71' 20540+0614 TDT2616 distance=73' 20533+0627 TDT2607 distance=74' 20539+0620 TDS1107 distance=76' 20473+0426 UC 4288 distance=79' 20458+0445 BAL2971 distance=80' 20530+0427 TDT2603 distance=80' 20525+0416 TDT2595 distance=86' 20484+0407 BAL2546 distance=89' 20457+0430 A 2285AB distance=90' 20457+0430 A 2285AC distance=90' 20561+0535 TDT2642 distance=92' 20546+0641 SLN 86 distance=97' 20487+0706 J 3223 distance=99' 20543+0650 TDT2621 distance=101' 20513+0353 GWP3006 distance=102' 20557+0432 STF2735 distance=105' 20559+0435 UC 4332 distance=107' 20556+0649 TDT2635 distance=113' 20554+0653 BRT2188 distance=114' 20541+0357 HJ 3005 distance=114' 20527+0720 STF2733 distance=115' 20442+0648 SKF2552BC distance=115' 20442+0648 SKF2552AB distance=115' 20442+0648 SKF2552AC distance=115' 20559+0646 NSN 739 distance=116' 20457+0709 BU 834 distance=116' 20564+0422 CVR 877 distance=119' 20466+0344 BAL2545 distance=120' 20452+0352 UC 4280 distance=123' 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 20500+0533 STTA210 AB 127 78.2
Show 20500+0533 STTA210 BC 222 12.4 2
Show 20496+0538 GWP3002 247 57.2 8
Show 20511+0526 GCB 59 238 10.1 18
Show 20514+0524 TOB 313 130 20.8 24
Show 20488+0512 J 2321 AB 151 6.6 27
Show 20488+0512 OSO 135 AC 158 16.6 27
Show 20519+0544 A 613 324 0.7 32
Show 20492+0502 HDS2967 190 0.4 34
Show 20478+0555 TDT2543 263 0.6 40
Show 20527+0527 J 572 138 3.4 41
Show 20526+0517 GCB 75 101 3.3 42
Show 20506+0453 BAL2974 42 3.7 42
Show 20529+0529 GCB 60 152 6.5 42
Show 20478+0600 BU 65 200 1.5 43
Show 20511+0623 STF2730 333 3.3 54
Show 20533+0551 UC 4318 168 33.0 54
Show 20516+0431 KPP1501 50 11.3 67
Show 20459+0607 TDT2523 80 1.7 71
Show 20464+0618 TDT2533 230 0.7 71
Show 20455+0553 HDS2954 298 1.0 71
Show 20484+0426 AG 267 260 6.1 71
Show 20540+0614 TDT2616 100 0.4 73
Show 20533+0627 TDT2607 281 0.6 74
Show 20539+0620 TDS1107 110 1.6 76
Show 20473+0426 UC 4288 79 48.6 79
Show 20458+0445 BAL2971 21 17.1 80
Show 20530+0427 TDT2603 281 1.7 80
Show 20525+0416 TDT2595 359 0.7 86
Show 20484+0407 BAL2546 40 9.6 89
Show 20457+0430 A 2285 AB 222 7.7 90
Show 20457+0430 A 2285 AC 116 33.4 90
Show 20561+0535 TDT2642 77 0.6 92
Show 20546+0641 SLN 86 160 4.8 97
Show 20487+0706 J 3223 307 2.7 99
Show 20543+0650 TDT2621 4 1.7 101
Show 20513+0353 GWP3006 117 24.4 102
Show 20557+0432 STF2735 282 2.0 105
Show 20559+0435 UC 4332 60 52.9 107
Show 20556+0649 TDT2635 259 0.8 113
Show 20554+0653 BRT2188 46 4.2 114
Show 20541+0357 HJ 3005 300 30.5 114
Show 20527+0720 STF2733 145 40.2 115
Show 20442+0648 SKF2552 BC 343 11.4 115
Show 20442+0648 SKF2552 AB 60 17.6 115
Show 20442+0648 SKF2552 AC 31 23.1 115
Show 20559+0646 NSN 739 52 8.8 116
Show 20457+0709 BU 834 134 2.4 116
Show 20564+0422 CVR 877 125 26.3 119
Show 20466+0344 BAL2545 281 11.8 120
Show 20452+0352 UC 4280 255 36.1 123

 
 
WDS 20500+0533 : COMPONENTS
 
 
  A B
B pa=126.7°
sep=78.60"
 
C pa=135.7°
sep=78.53"
pa=221.6°
sep=12.35"
 
 
20500+0533 A
 
 
Name HD 198404 Coord arcsec 2000 204959.10+053240.4 Mag 6.3 Spectral class K0 (yellow-orange)
PmRA 44.00 PmDE 1.0 SAO 126267 HIP 102833
Tycho2 0520-02792-1 HD 198404 HR 7975 GC 29044
BD BD+05 4626
Tycho2
Tycho2 0520-02792-1 Pflag RAmdeg 312.49623668 DEmdeg 5.54456269
PmRA 42.8 PmDE 2.5 E RAmdeg 4 E DEmdeg 4
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.57 EpDEm 1991.22
Num 14 Q RAmdeg 0.8 Q DEmdeg 0.5 Q pmRA 0.8
Q pmDE 0.5 BTmag 7.446 E BTmag 0.015 VTmag 6.298
E VTmag 0.010 Prox 788 TYC T HIP 102833
CCDM RAdeg 312.49613861 DEdeg 5.54455667 EpRA 1990 1.81
EpDE 1990 1.45 E RAdeg 3.5 E DEdeg 4.0 Posflg
Corr -0.2
SAO
SAO 126267 DelFlag RA1950 PmRA1950 0.0025
DE1950 PmDE1950 0.01 Vmag 6.3 SpType K0
Double code Source 70 CatNum 29044 DM BD+05 4626
DMcomp BDsup HD 198404 M HD 0
GC 29044 RA1950rad 5.44323902 DE1950rad 0.09350726 PmRA2000 0.0027
PmDE2000 0.007
Hipparcos
Catalog H HIP 102833 Proxy RAhms 20 49 59.07
DEdms +05 32 40.4 Vmag 6.2 VarFlag R Vmag H
RAdeg 312.496 DEdeg 5.54456 AstroRef Plx 6.58
CCDM 20500+0532 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 198404 BD BD+05 4626
CD CP Dm number +05 4626 VIred 0.97
SpType K0 R SpType Coord arcsec 2000 204959.07+053240.4
Hipparcos 2
HIP 102833 Sn 5 So 0 Nc 1
RArad 5.454086403 DErad 0.0967707775 Plx 7.89 PmRA 43.94
PmDE 0.8 E RArad 0.39 E DErad 0.23 E Plx 0.49
E pmRA 0.49 E pmDE 0.26 Hpmag 6.363 E Hpmag 0.0006
SHp 0.006 VA 0 BV 0.986 E BV 0.006
VI 0.97
 
 
20500+0533 B
 
 
Coord arcsec 2000 205003.32+053153.4 Coord calc 205003.32+053153.4 Mag 9.18 Spectral class K0 (yellow-orange)
PmRA -11.00 PmDE -32.0 Tycho2 0520-00011-1 Calc delta mag 2.88
Tycho2
Tycho2 0520-00011-1 Pflag RAmdeg 312.51384320 DEmdeg 5.53152348
PmRA -11.5 PmDE -30.9 E RAmdeg 12 E DEmdeg 14
E pmRA 1.7 E pmDE 1.7 EpRAm 1990.48 EpDEm 1990.11
Num 8 Q RAmdeg 0.8 Q DEmdeg 0.9 Q pmRA 0.9
Q pmDE 0.9 BTmag 10.427 E BTmag 0.035 VTmag 9.125
E VTmag 0.018 Prox 788 TYC T HIP
CCDM RAdeg 312.51387000 DEdeg 5.53159556 EpRA 1990 1.79
EpDE 1990 1.65 E RAdeg 12.2 E DEdeg 14.4 Posflg
Corr -0.4
 
 
20500+0533 C
 
 
Coord arcsec 2000 205002.77+053144.2 Mag 14.7 Calc delta mag 8.4 Calc coord yes