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Doubles in session


Current system
20457+5040
STT 412 BC


Nearby doubles
15' : 20441+5043
LEP 171

20' : 20449+5023
SKF2395

29' : 20483+5054
ES 998

30' : 20486+5029
BU 366AB

37' : 20465+5005
HDS2958

37' : 20466+5004
HDS2959

38' : 20496+5047
HDS2968

39' : 20422+5020
BU 675AB

41' : 20499+5036
CBL 87

44' : 20421+5013
ES 91AB

50' : 20457+4951
TDT2521

51' : 20496+5008
ES 94AB

68' : 20511+5125
BU 155AB

69' : 20472+5148
BU 365

73' : 20383+5023
HU 588AB

75' : 20380+5025
DAM 294

78' : 20376+5028
L 49

78' : 20379+5106
ES 88AB

79' : 20378+5018
DAM 293

80' : 20487+5155
STF2732

81' : 20434+4923
STJ 111

82' : 20418+4929
HEI 910

84' : 20438+4921
HEI 911

86' : 20367+5053
HLD 39AB

90' : 20429+5206
ES 995

90' : 20425+4916
ARG 39AB



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.

20457+5040 STT 412 BC

 
 
20h 45m 40.40s +50° 40' 30.1" P.A. 186.00 sep 5.0 mag 11.70,11.80
 
 
Coord 2000 20457+5040 Discov num STT 412 Comp BC Coord arcsec 2000 20 45 40.40 +50 40 30.1
Date first 1899 Date last 2016 Obs 15
Pa first 186 Pa last 185.5 P.A. Now (θ) 185.5°
Sep first 5.1 Sep last 5.032 Sep. Now (ρ) 5.032"
Mag pri 11.70 Mag sec 11.80 delta mag (ΔM) 0.1 Spectral class
Pri motion ra +003 Sec motion ra -001
Pri motion dec +000 Sec motion dec +001
Notes
rPM=1.374
This double is not physical.
 
 
20457+5040 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 198039 32865 20 45 43 +50 40 26 STT 412 AB 2015 12 279 26.0 7.10 11.70 4.60
Show 32865 20 45 43 +50 40 26 STT 412 AC 2015 10 268 26.2 7.10 11.80 4.70
Show 20 45 40 +50 40 30 STT 412 BC 2016 15 186 5.0 11.70 11.80 0.10 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 2168453847311683328
 
 
WDS 20457+5040 STT 412 BC : 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
20457+5040 STT 412 BC 2003 9 186 5.0 13.10 13.10 D 204540.40+504030.1
20457+5040 STT 412 BC 2015 11 186 5.0 11.70 11.80 204540.40+504030.1
20457+5040 STT 412 BC 2016 15 186 5.0 11.70 11.80 204540.40+504030.1

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

 
 
WDS 20457+5040 STT 412 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20457+5040 STT 412 BC : MEASURES
 
 
No records found.

 
 
WDS 20457+5040 : VIRTUAL EYEPIECE
 
 

20457+5040 STT 412A mag 7.1 Sp F3IV 20457+5040 STT 412B sep 25.8 P.A. 279.40 mag 11.7 20457+5040 STT 412C sep 16.6 P.A. 266.80 mag 11.8 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 20457+5040 : ALADIN DSS IMAGE @ 20h 45m 40.40s +50° 40' 30.1"
 
 
 
 
WDS 20457+5040 STT 412 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20457+5040 STT 412BC distance=1' 20457+5040 STT 412AB distance=1' 20457+5040 STT 412AC distance=1' 20441+5043 LEP 171 distance=15' 20449+5023 SKF2395 distance=20' 20483+5054 ES 998 distance=29' 20486+5029 BU 366AB distance=30' 20486+5029 BU 366AC distance=30' 20486+5029 D 23CD distance=31' 20465+5005 HDS2958 distance=37' 20466+5004 HDS2959 distance=37' 20496+5047 HDS2968 distance=38' 20422+5020 BU 675AB distance=39' 20422+5020 BU 675AC distance=39' 20422+5020 BU 675AD distance=39' 20422+5020 BU 675AE distance=39' 20499+5036 CBL 87 distance=41' 20421+5013 ES 91AB distance=44' 20421+5013 ES 91AC distance=44' 20421+5013 ES 91BC distance=44' 20496+5008 ES 94BC distance=50' 20457+4951 TDT2521 distance=50' 20496+5008 ES 94AB distance=51' 20496+5008 GUI 34AD distance=51' 20511+5125 BU 155AB distance=68' 20511+5125 BU 155AC distance=68' 20511+5125 BU 155AD distance=68' 20472+5148 BU 365 distance=69' 20383+5023 HU 588AB distance=73' 20380+5025 DAM 294 distance=75' 20379+5106 KPP4397BC distance=78' 20379+5106 KPP4397CD distance=78' 20376+5028 L 49 distance=78' 20379+5106 ES 88AB distance=78' 20379+5106 KPP4397AC distance=78' 20378+5018 DAM 293 distance=79' 20487+5155 STF2732 distance=80' 20434+4923 STJ 111 distance=81' 20418+4929 HEI 910 distance=82' 20438+4921 HEI 911 distance=84' 20367+5053 HEI 879Aa,Ab distance=86' 20367+5053 HLD 39AB distance=86' 20429+5206 ES 995 distance=90' 20425+4916 ARG 39AB distance=90' 20425+4916 ARG 39AF distance=90' 20425+4916 ARG 39AG distance=90' 20425+4916 ARG 39BC distance=91' 20425+4916 ARG 39BD distance=91' 20425+4916 ARG 39BE distance=91' 20379+5144 OSO 128AB distance=98' 20379+5144 OSO 128AC distance=98' 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 20457+5040 STT 412 BC 186 5.0 1
Show 20457+5040 STT 412 AB 279 26.0 1
Show 20457+5040 STT 412 AC 268 26.2 1
Show 20441+5043 LEP 171 172 4.4 15
Show 20449+5023 SKF2395 204 4.1 20
Show 20483+5054 ES 998 176 3.2 29
Show 20486+5029 BU 366 AB 130 1.5 30
Show 20486+5029 BU 366 AC 105 51.1 30
Show 20486+5029 D 23 CD 5 1.7 31
Show 20465+5005 HDS2958 334 0.1 37
Show 20466+5004 HDS2959 21 0.5 37
Show 20496+5047 HDS2968 69 0.3 38
Show 20422+5020 BU 675 AB 102 3.3 39
Show 20422+5020 BU 675 AC 185 28.8 39
Show 20422+5020 BU 675 AD 329 33.3 39
Show 20422+5020 BU 675 AE 240 72.0 39
Show 20499+5036 CBL 87 2 25.0 41
Show 20421+5013 ES 91 AB 189 4.6 44
Show 20421+5013 ES 91 AC 235 17.6 44
Show 20421+5013 ES 91 BC 247 14.8 44
Show 20496+5008 ES 94 BC 79 2.5 50
Show 20457+4951 TDT2521 236 0.3 50
Show 20496+5008 ES 94 AB 15 102.7 51
Show 20496+5008 GUI 34 AD 58 86.9 51
Show 20511+5125 BU 155 AB 40 0.7 68
Show 20511+5125 BU 155 AC 40 14.8 68
Show 20511+5125 BU 155 AD 48 191.8 68
Show 20472+5148 BU 365 288 17.2 69
Show 20383+5023 HU 588 AB 245 2.0 73
Show 20380+5025 DAM 294 258 4.1 75
Show 20379+5106 KPP4397 BC 201 49.0 78
Show 20379+5106 KPP4397 CD 35 2.2 78
Show 20376+5028 L 49 82 4.1 78
Show 20379+5106 ES 88 AB 127 7.8 78
Show 20379+5106 KPP4397 AC 193 51.7 78
Show 20378+5018 DAM 293 286 4.8 79
Show 20487+5155 STF2732 73 4.3 80
Show 20434+4923 STJ 111 64 0.9 81
Show 20418+4929 HEI 910 201 1.6 82
Show 20438+4921 HEI 911 125 2.4 84
Show 20367+5053 HEI 879 Aa,Ab 137 0.1 86
Show 20367+5053 HLD 39 AB 174 7.5 86
Show 20429+5206 ES 995 107 8.6 90
Show 20425+4916 ARG 39 AB 184 15.4 90
Show 20425+4916 ARG 39 AF 258 34.4 90
Show 20425+4916 ARG 39 AG 341 52.4 90
Show 20425+4916 ARG 39 BC 100 35.4 91
Show 20425+4916 ARG 39 BD 241 21.1 91
Show 20425+4916 ARG 39 BE 55 44.1 91
Show 20379+5144 OSO 128 AB 58 8.9 98
Show 20379+5144 OSO 128 AC 157 21.3 98

 
 
WDS 20457+5040 : COMPONENTS
 
 
  A B
B pa=279.4°
sep=25.82"
 
C pa=266.8°
sep=16.62"
pa=119.9°
sep=10.25"
 
 
20457+5040 A
 
 
Name HD 198039 Coord arcsec 2000 204543.08+504025.9 Mag 7.1 Spectral class F3IV (yellow-white)
PmRA 5.00 PmDE 8.0 SAO 32865 HIP 102459
Tycho2 3586-00199-1 HD 198039 GC 28957 BD BD+50 3191
Tycho2
Tycho2 3586-00199-1 Pflag RAmdeg 311.42952406 DEmdeg 50.67387287
PmRA 5.8 PmDE 7.6 E RAmdeg 4 E DEmdeg 4
E pmRA 1.0 E pmDE 1.1 EpRAm 1991.35 EpDEm 1991.41
Num 13 Q RAmdeg 0.8 Q DEmdeg 0.8 Q pmRA 0.7
Q pmDE 0.8 BTmag 7.861 E BTmag 0.015 VTmag 7.273
E VTmag 0.010 Prox 999 TYC T HIP 102459
CCDM RAdeg 311.42950278 DEdeg 50.67385528 EpRA 1990 1.66
EpDE 1990 1.66 E RAdeg 4.3 E DEdeg 4.3 Posflg
Corr 0.0
SAO
SAO 32865 DelFlag RA1950 PmRA1950 0.0009
DE1950 PmDE1950 0.009 Vmag 7.1 SpType F5
Double code Source 70 CatNum 28957 DM BD+50 3191
DMcomp BDsup HD 198039 M HD 0
GC 28957 RA1950rad 5.42873317 DE1950rad 0.88122062 PmRA2000 0.0013
PmDE2000 0.007
Hipparcos
Catalog H HIP 102459 Proxy RAhms 20 45 43.08
DEdms +50 40 25.9 Vmag 7.19 VarFlag R Vmag G
RAdeg 311.43 DEdeg 50.6739 AstroRef Plx 2.52
CCDM 20457+5040 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 198039 BD BD+50 3191
CD CP Dm number +50 3191 VIred 0.7
SpType F5 R SpType Coord arcsec 2000 204543.08+504025.9
Hipparcos 2
HIP 102459 Sn 5 So 0 Nc 1
RArad 5.4354701486 DErad 0.8844255958 Plx 1.9 PmRA 5.19
PmDE 7.94 E RArad 0.4 E DErad 0.35 E Plx 0.44
E pmRA 0.51 E pmDE 0.48 Hpmag 7.3085 E Hpmag 0.001
SHp 0.01 VA 0 BV 0.54 E BV 0.008
VI 0.61
CCDM
Ccdm 20457+5040 RComp Comp A Note1
Note2 Discov num DRAs 1.19 DDEs 25.3
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.1 Sp F5 PmNote *
PmRA 22 PmDE 2 Dm number +50 3191 Cat1 BD
Name2 +50 1547 Cat2 AGK2/3 HD 198039 M HD
ADS BDS A14273 M ADS BDS N IDS IDS 20426N5018A
HIC 102459
 
 
20457+5040 B
 
 
Coord arcsec 2000 204540.40+504030.1 Coord calc 204540.40+504030.1 Mag 11.7 PmRA 3.00
PmDE 0.0 Calc delta mag 4.6
CCDM
Ccdm 20457+5040 RComp Comp B Note1
Note2 Discov num STT 412 DRAs DDEs
R dRAs Year 1899 Theta 282 Rho 25.5
Obs 2 Vmag 13.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14273 M ADS BDS N N IDS IDS 20426N5018B
HIC
 
 
20457+5040 C
 
 
Coord arcsec 2000 204541.33+504025.0 Mag 11.8 PmRA -1.00 PmDE 1.0
Calc delta mag 4.7 Calc coord yes
CCDM
Ccdm 20457+5040 RComp Comp C Note1
Note2 Discov num HU DRAs DDEs
R dRAs Year 1899 Theta 270 Rho 25.6
Obs 1 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14273 M ADS BDS N IDS IDS 20426N5018C
HIC