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Doubles in session


Current system
20506+3024
STT 415
HD 198627


Nearby doubles
25' : 20523+3038
LDS6417

28' : 20519+3002
TDT2587

30' : 20525+3040
TDT2594

30' : 20506+3055
BU 67AB

33' : 20493+2957
TDS1102

34' : 20483+3009
TDT2551

37' : 20484+3049
TDT2552

39' : 20538+3029
J 3117

42' : 20515+3104
NSN 737AB

42' : 20475+3016
COU1176

48' : 20478+3057
ES 368

49' : 20487+2943
TDT2556

50' : 20492+3111
LDS2930

50' : 20535+3057
STTA212

52' : 20493+3113
TDS1101

52' : 20489+2939
TDT2559

56' : 20547+3046
LDS2934

57' : 20490+2932
BRT 51AB

58' : 20538+3104
CLL 16

60' : 20534+3113
TDT2609

62' : 20501+2923
BAG 28AB

64' : 20554+3033
GRV 396

65' : 20555+3028
TDT2633

65' : 20487+3124
TDT2555

65' : 20554+3059
J 2329

67' : 20456+3043
STF2726



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.

20506+3024 STT 415 (HD 198627)

 
 
20h 50m 36.36s +30° 24' 47.1" P.A. 234.00 sep 3.7 mag 8.24,10.10 Sp F5 dist. 102.15 pc (333.21 l.y.)
 
 
Coord 2000 20506+3024 Discov num STT 415 Comp Coord arcsec 2000 20 50 36.36 +30 24 47.1
Date first 1846 Date last 2017 Obs 36
Pa first 232 Pa last 234.2 P.A. Now (θ) 234.2°
Sep first 3.3 Sep last 3.74 Sep. Now (ρ) 3.74"
Mag pri 8.24 Mag sec 10.10 delta mag (ΔM) 1.86 Spectral class F5 (yellow-white)
Pri motion ra -035 Sec motion ra -059
Pri motion dec -007 Sec motion dec -016
Notes
rPM=0.419
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 198627 Constellation Cygnus HIP 102877 Tycho2 2687-02617-1
Gaia DR2 1858710392295838464 HD 198627 BD BD+29 4201 Distance 102.15
Distance ly 333.21
 
 
WDS 20506+3024 STT 415 (HD 198627) : 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
20506+3024 STT 415 1998 27 232 3.5 8.24 10.10 F5 D 205036.36+302447.1
20506+3024 STT 415 2009 28 232 3.7 8.24 10.10 F5 D 205036.36+302447.1
20506+3024 STT 415 2015 33 232 3.7 8.24 10.10 F5 205036.36+302447.1
20506+3024 STT 415 2017 35 234 3.7 8.24 10.10 F5 205036.36+302447.1

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

 
 
WDS 20506+3024 STT 415 (HD 198627) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20506+3024 STT 415 (HD 198627) : MEASURES
 
 
No records found.

 
 
WDS 20506+3024 (HD 198627) : VIRTUAL EYEPIECE
 
 

20506+3024 STT 415A mag 8.24 Sp F5 20506+3024 STT 415B sep 3.4 P.A. 230.10 mag 10.1 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 20506+3024 (HD 198627) : ALADIN DSS IMAGE @ 20h 50m 36.36s +30° 24' 47.1"
 
 
 
 
WDS 20506+3024 STT 415 (HD 198627) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20506+3024 STT 415 distance=1' 20523+3038 LDS6417 distance=25' 20519+3002 TDT2587 distance=28' 20525+3040 TDT2594 distance=30' 20506+3055 BU 67AB distance=30' 20506+3055 GII 293Aa,Ab distance=30' 20493+2957 TDS1102 distance=33' 20483+3009 TDT2551 distance=34' 20484+3049 TDT2552 distance=37' 20538+3029 J 3117 distance=39' 20515+3104 NSN 737AB distance=42' 20515+3104 RAO 676AC distance=42' 20475+3016 COU1176 distance=42' 20478+3057 ES 368 distance=48' 20487+2943 TDT2556 distance=49' 20492+3111 LDS2930 distance=50' 20535+3057 STTA212 distance=50' 20493+3113 TDS1101 distance=52' 20489+2939 TDT2559 distance=52' 20547+3046 LDS2934 distance=56' 20490+2932 BRT 51BC distance=57' 20490+2932 BRT 51AB distance=57' 20490+2932 BRT 51AC distance=57' 20538+3104 CLL 16 distance=58' 20534+3113 TDT2609 distance=60' 20501+2923 BAG 28AB distance=62' 20501+2923 HLA 29AC distance=62' 20554+3033 GRV 396 distance=64' 20555+3028 TDT2633 distance=65' 20487+3124 TDT2555 distance=65' 20554+3059 J 2329 distance=65' 20456+3043 STF2726 distance=67' 20522+2917 KU 129AB distance=71' 20522+2917 KU 129AC distance=71' 20529+2920 BOW9002AB distance=72' 20529+2920 DAM 295AC distance=72' 20451+3014 ES 367 distance=72' 20528+3132 TDT2599 distance=73' 20540+3124 ES 371 distance=74' 20448+3022 AG 410 distance=75' 20455+3102 A 1211 distance=76' 20492+2911 TDT2561 distance=76' 20530+3136 TDT2602 distance=79' 20567+3027 TDT2650 distance=80' 20563+2954 J 1779 distance=80' 20567+3047 LDS2935 distance=81' 20536+3138 HDS2976 distance=83' 20531+2909 STT 417AB distance=83' 20531+2909 STT 417AB,C distance=83' 20503+3151 TDT2570 distance=86' 20491+3148 ES 370 distance=86' 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 20506+3024 STT 415 234 3.7 1
Show 20523+3038 LDS6417 295 228.9 25
Show 20519+3002 TDT2587 349 1.0 28
Show 20525+3040 TDT2594 160 0.8 30
Show 20506+3055 BU 67 AB 311 1.5 30
Show 20506+3055 GII 293 Aa,Ab 137 0.1 30
Show 20493+2957 TDS1102 19 1.1 33
Show 20483+3009 TDT2551 41 3.2 34
Show 20484+3049 TDT2552 124 2.3 37
Show 20538+3029 J 3117 40 5.5 39
Show 20515+3104 NSN 737 AB 134 1.4 42
Show 20515+3104 RAO 676 AC 22 4.5 42
Show 20475+3016 COU1176 45 0.4 42
Show 20478+3057 ES 368 359 3.1 48
Show 20487+2943 TDT2556 280 0.8 49
Show 20492+3111 LDS2930 273 22.2 50
Show 20535+3057 STTA212 155 65.7 50
Show 20493+3113 TDS1101 231 1.2 52
Show 20489+2939 TDT2559 176 0.5 52
Show 20547+3046 LDS2934 178 10.8 56
Show 20490+2932 BRT 51 BC 128 4.6 57
Show 20490+2932 BRT 51 AB 355 6.9 57
Show 20490+2932 BRT 51 AC 37 5.1 57
Show 20538+3104 CLL 16 184 32.0 58
Show 20534+3113 TDT2609 11 0.5 60
Show 20501+2923 BAG 28 AB 332 1.0 62
Show 20501+2923 HLA 29 AC 336 6.9 62
Show 20554+3033 GRV 396 349 67.4 64
Show 20555+3028 TDT2633 116 1.4 65
Show 20487+3124 TDT2555 188 0.9 65
Show 20554+3059 J 2329 11 6.5 65
Show 20456+3043 STF2726 74 5.8 67
Show 20522+2917 KU 129 AB 103 15.1 71
Show 20522+2917 KU 129 AC 39 46.1 71
Show 20529+2920 BOW9002 AB 354 9.9 72
Show 20529+2920 DAM 295 AC 37 22.2 72
Show 20451+3014 ES 367 244 6.9 72
Show 20528+3132 TDT2599 325 1.7 73
Show 20540+3124 ES 371 134 3.5 74
Show 20448+3022 AG 410 187 19.0 75
Show 20455+3102 A 1211 242 3.6 76
Show 20492+2911 TDT2561 5 3.5 76
Show 20530+3136 TDT2602 64 0.6 79
Show 20567+3027 TDT2650 310 0.6 80
Show 20563+2954 J 1779 246 2.5 80
Show 20567+3047 LDS2935 200 10.1 81
Show 20536+3138 HDS2976 248 0.3 83
Show 20531+2909 STT 417 AB 27 0.9 83
Show 20531+2909 STT 417 AB,C 108 30.8 83
Show 20503+3151 TDT2570 262 3.2 86
Show 20491+3148 ES 370 44 7.7 86

 
 
WDS 20506+3024 : COMPONENTS
 
 
  A
B pa=230.1°
sep=3.41"
 
 
20506+3024 A
 
 
Componente originario normalizzato AB Name HD 198627 Coord arcsec 2000 205036.36+302447.1 Mag 8.24
Spectral class F5 (yellow-white) PmRA -35.00 PmDE -7.0 HIP 102877
Tycho2 2687-02617-1 HD 198627 BD BD+29 4201
Tycho2
Tycho2 2687-02617-1 Pflag RAmdeg 312.65151583 DEmdeg 30.41307452
PmRA -37.4 PmDE -5.0 E RAmdeg 5 E DEmdeg 5
E pmRA 1.6 E pmDE 1.5 EpRAm 1991.38 EpDEm 1991.62
Num 5 Q RAmdeg 2.2 Q DEmdeg 1.2 Q pmRA 2.1
Q pmDE 1.3 BTmag 8.607 E BTmag 0.016 VTmag 8.242
E VTmag 0.011 Prox 37 TYC T HIP 102877
CCDM A RAdeg 312.65161833 DEdeg 30.41308583 EpRA 1990 1.49
EpDE 1990 1.74 E RAdeg 5.4 E DEdeg 4.8 Posflg
Corr 0.1
Hipparcos
Catalog H HIP 102877 Proxy H RAhms 20 50 36.39
DEdms +30 24 47.1 Vmag 8.02 VarFlag R Vmag G
RAdeg 312.652 DEdeg 30.4131 AstroRef A Plx 8.53
CCDM 20506+3025 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 233 Rho 3.684 HD 198627 BD BD+29 4201
CD CP Dm number +29 4201 VIred 0.47
SpType F5 R SpType Coord arcsec 2000 205036.39+302447.1
Hipparcos 2
HIP 102877 Sn 15 So 3 Nc 2
RArad 5.456800185 DErad 0.5308085111 Plx 9.79 PmRA -42.63
PmDE -8.26 E RArad 0.54 E DErad 0.67 E Plx 0.98
E pmRA 0.74 E pmDE 0.84 Hpmag 8.1205 E Hpmag 0.0019
SHp 0.019 VA 0 BV 0.402 E BV 0.015
VI 0.47
 
 
20506+3024 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205036.16+302444.9 Mag 10.1 PmRA -59.00
PmDE -16.0 Calc delta mag 1.86 Calc coord yes