20487+5155 STF 2732 (HD 198513)

 
 
20h 48m 42.74s +51° 54' 37.1" P.A. 73.00 sep 4.3 mag 6.38,8.63 Sp B8np dist. 222.72 pc (726.51 l.y.)
 
 
Coord 2000 20487+5155 Discov num STF2732 Comp Coord arcsec 2000 20 48 42.74 +51 54 37.1
Date first 1825 Date last 2016 Obs 45
Pa first 75 Pa last 72.6 P.A. Now (θ) 72.6°
Sep first 4.4 Sep last 4.269 Sep. Now (ρ) 4.269"
Mag pri 6.38 Mag sec 8.63 delta mag (ΔM) 2.25 Spectral class B8np (blue-white)
Pri motion ra -001 Sec motion ra +006
Pri motion dec -004 Sec motion dec +002
Notes N (See Notes)
rPM=1.458
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 198513 Constellation Cygnus SAO 32908 HIP 102712
Tycho2 3586-02802-1 Gaia DR2 2182038622709013120 HD 198513 HR 7978
GC 29033 ADS 14336 BD BD+51 2957 Distance 222.72
Distance ly 726.51
 
 
WDS 20487+5155 STF 2732 (HD 198513) : NOTES
 
 
discov_num notes refcode
STF2732 H 2 100. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20487+5155 STF2732 2005 39 72 4.2 6.38 8.63 B8np D 204842.74+515437.1
20487+5155 STF2732 2012 41 72 4.1 6.38 8.63 B8np N D 204842.74+515437.1
20487+5155 STF2732 2016 43 73 4.3 6.38 8.63 B8np N 204842.74+515437.1

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WDS 20487+5155 STF 2732 (HD 198513) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20487+5155 STF 2732 (HD 198513) : MEASURES
 
 
No records found.

 
 
WDS 20487+5155 (HD 198513) : VIRTUAL EYEPIECE
 
 

20487+5155 STF2732A mag 6.38 Sp B8np 20487+5155 STF2732B sep 2.8 P.A. 63.10 mag 8.63 virtual eyepiece
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Radius:
Components only
 
 
WDS 20487+5155 (HD 198513) : ALADIN DSS IMAGE @ 20h 48m 42.74s +51° 54' 37.1"
 
 
 
 
WDS 20487+5155 STF 2732 (HD 198513) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


20487+5155  STF2732 distance=0' 20472+5148  BU  365 distance=16' 20479+5224  ES   93 distance=31' 20511+5125  BU  155AB distance=37' 20511+5125  BU  155AC distance=37' 20511+5125  BU  155AD distance=37' 20435+5217  TVB   6 distance=53' 20429+5206  ES  995 distance=56' 20460+5247  ES  996 distance=58' 20483+5054  ES  998 distance=61' 20496+5047  HDS2968 distance=69' 20427+5238  A  1683 distance=71' 20444+5253  MLR 643 distance=71' 20405+5217  TDT2463 distance=79' 20499+5036  CBL  87 distance=80' 20457+5040  STT 412AB distance=80' 20457+5040  STT 412AC distance=80' 20457+5040  STT 412BC distance=80' 20441+5043  LEP 171 distance=84' 20486+5029  BU  366AB distance=86' 20486+5029  BU  366AC distance=86' 20486+5029  D    23CD distance=86' 20397+5227  ES  992 distance=90' 20566+5250  A  1437 distance=92' 20574+5104  ES  999 distance=96' 20424+5312  RAO 618CD distance=97' 20384+5212  TDT2443 distance=97' 20449+5023  SKF2395 distance=99' 20379+5144  OSO 128AB distance=102' 20379+5144  OSO 128AC distance=102' 20564+5044  BU 1137 distance=102' 20408+5307  ES 2698AB distance=103' 20496+5008  ES   94BC distance=106' 20372+5159  TDT2428 distance=107' 20496+5008  ES   94AB distance=108' 20496+5008  GUI  34AD distance=108' 20384+5248  TDT2442Aa,Ab distance=109' 20384+5248  SKF 348AB distance=109' 20509+5342  TDT2576 distance=110' 20465+5005  HDS2958 distance=112' 20379+5106  KPP4397BC distance=112' 20379+5106  ES   88AB distance=112' 20379+5106  KPP4397AC distance=112' 20466+5004  HDS2959 distance=112' 20379+5106  KPP4397CD distance=113' 20422+5020  BU  675AB distance=113' 20422+5020  BU  675AC distance=113' 20422+5020  BU  675AD distance=113' 20422+5020  BU  675AE distance=113' 20421+5013  ES   91AB distance=119' 20421+5013  ES   91AC distance=119' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show 20487+5155 STF2732 73 4.3
Show 20472+5148 BU 365 288 17.2 16
Show 20479+5224 ES 93 321 26.0 31
Show 20511+5125 BU 155 AB 40 0.7 37
Show 20511+5125 BU 155 AC 40 14.8 37
Show 20511+5125 BU 155 AD 48 191.8 37
Show 20435+5217 TVB 6 318 11.7 53
Show 20429+5206 ES 995 107 8.6 56
Show 20460+5247 ES 996 264 8.8 58
Show 20483+5054 ES 998 176 3.2 61
Show 20496+5047 HDS2968 69 0.3 69
Show 20427+5238 A 1683 209 0.1 71
Show 20444+5253 MLR 643 127 0.3 71
Show 20405+5217 TDT2463 180 2.4 79
Show 20499+5036 CBL 87 2 25.0 80
Show 20457+5040 STT 412 AB 279 26.0 80
Show 20457+5040 STT 412 AC 268 26.2 80
Show 20457+5040 STT 412 BC 186 5.0 80
Show 20441+5043 LEP 171 172 4.4 84
Show 20486+5029 BU 366 AB 130 1.5 86
Show 20486+5029 BU 366 AC 105 51.1 86
Show 20486+5029 D 23 CD 5 1.7 86
Show 20397+5227 ES 992 166 7.3 90
Show 20566+5250 A 1437 331 1.4 92
Show 20574+5104 ES 999 262 3.2 96
Show 20424+5312 RAO 618 CD 36 0.3 97
Show 20384+5212 TDT2443 111 2.2 97
Show 20449+5023 SKF2395 204 4.1 99
Show 20379+5144 OSO 128 AB 58 8.9 102
Show 20379+5144 OSO 128 AC 157 21.3 102
Show 20564+5044 BU 1137 350 7.4 102
Show 20408+5307 ES 2698 AB 28 8.3 103
Show 20496+5008 ES 94 BC 79 2.5 106
Show 20372+5159 TDT2428 221 0.7 107
Show 20496+5008 ES 94 AB 15 102.7 108
Show 20496+5008 GUI 34 AD 58 86.9 108
Show 20384+5248 TDT2442 Aa,Ab 304 0.5 109
Show 20384+5248 SKF 348 AB 178 19.9 109
Show 20509+5342 TDT2576 57 0.7 110
Show 20465+5005 HDS2958 334 0.1 112
Show 20379+5106 KPP4397 BC 201 49.0 112
Show 20379+5106 ES 88 AB 127 7.8 112
Show 20379+5106 KPP4397 AC 193 51.7 112
Show 20466+5004 HDS2959 21 0.5 112
Show 20379+5106 KPP4397 CD 35 2.2 113
Show 20422+5020 BU 675 AB 102 3.3 113
Show 20422+5020 BU 675 AC 185 28.8 113
Show 20422+5020 BU 675 AD 329 33.3 113
Show 20422+5020 BU 675 AE 240 72.0 113
Show 20421+5013 ES 91 AB 189 4.6 119
Show 20421+5013 ES 91 AC 235 17.6 119

 
 
WDS 20487+5155 : COMPONENTS
 
 
  A
B pa=63.1°
sep=2.82"
 
 
20487+5155 A
 
 
Componente originario normalizzato AB Name HD 198513 Coord arcsec 2000 204842.74+515437.1 Mag 6.38
Spectral class B8np (blue-white) PmRA -1.00 PmDE -4.0 SAO 32908
HIP 102712 Tycho2 3586-02802-1 HD 198513 HR 7978
GC 29033 BD BD+51 2957
Tycho2
Tycho2 3586-02802-1 Pflag RAmdeg 312.17807323 DEmdeg 51.91031404
PmRA -0.5 PmDE -4.4 E RAmdeg 4 E DEmdeg 4
E pmRA 2.8 E pmDE 3.1 EpRAm 1991.53 EpDEm 1991.71
Num 3 Q RAmdeg 0.2 Q DEmdeg 1.0 Q pmRA 0.2
Q pmDE 1.1 BTmag 6.263 E BTmag 0.014 VTmag 6.380
E VTmag 0.010 Prox 42 TYC T HIP 102712
CCDM A RAdeg 312.17807500 DEdeg 51.91032417 EpRA 1990 1.55
EpDE 1990 1.73 E RAdeg 4.1 E DEdeg 3.8 Posflg
Corr 0.2
SAO
SAO 32908 DelFlag RA1950 PmRA1950 0.0003
DE1950 PmDE1950 0.009 Vmag 6.3 SpType B9
Double code Source 70 CatNum 29033 DM BD+51 2957
DMcomp BDsup HD 198513 M HD 0
GC 29033 RA1950rad 5.44194144 DE1950rad 0.90275674 PmRA2000 0.0007
PmDE2000 0.007
Hipparcos
Catalog H HIP 102712 Proxy H RAhms 20 48 42.74
DEdms +51 54 37.2 Vmag 6.26 VarFlag R Vmag G
RAdeg 312.178 DEdeg 51.9103 AstroRef A Plx 4.12
CCDM 20487+5155 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 73 Rho 4.21 HD 198513 BD BD+51 2957
CD CP Dm number +51 2957 VIred -0.05
SpType B8np R SpType Coord arcsec 2000 204842.74+515437.2
Hipparcos 2
HIP 102712 Sn 15 So 3 Nc 2
RArad 5.4485352 DErad 0.9060060881 Plx 4.49 PmRA 5.52
PmDE 1.56 E RArad 0.39 E DErad 0.36 E Plx 0.44
E pmRA 0.48 E pmDE 0.5 Hpmag 6.2678 E Hpmag 0.0005
SHp 0.005 VA 0 BV -0.071 E BV 0.001
VI -0.05
CCDM
Ccdm 20487+5155 RComp Comp A Note1
Note2 Discov num DRAs 0.73 DDEs -22.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.5 Sp B2 PmNote *
PmRA 3 PmDE 9 Dm number +51 2957 Cat1 BD
Name2 32908 Cat2 SAO HD 198513 M HD
ADS BDS A14336 M ADS BDS N IDS IDS 20457N5132A
HIC 102712
 
 
20487+5155 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204843.01+515438.4 Mag 8.63 PmRA 6.00
PmDE 2.0 Calc delta mag 2.25 Calc coord yes
CCDM
Ccdm 20487+5155 RComp Comp B Note1
Note2 Discov num STF2732 DRAs DDEs
R dRAs Year 1831 Theta 074 Rho 4.1
Obs 14 Vmag 8.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14336 M ADS BDS N IDS IDS 20457N5132B
HIC 102712