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Doubles in session


Current system
21580+0556
STF 2848
HD 208718


Nearby doubles
10' : 21586+0601
SHJ 336AB

22' : 21591+0541
GWP3111

28' : 21593+0537
HDS3123

31' : 21595+0617
HJ 3079

43' : 22000+0525
HEI 824

43' : 21566+0633
HU 381

43' : 22001+0528
FYM 334AB

51' : 21547+0606
SLW1256

56' : 21576+0501
HJ 3073

82' : 21542+0459
OSO 160AB

82' : 21565+0715
STT 453AB

82' : 21534+0512
HJ 3064

84' : 21530+0518
HU 379

87' : 21557+0715
STT 452

89' : 21524+0623
SKF1871

89' : 21521+0549
J 916

90' : 21522+0538
JOD 23AB

91' : 22019+0446
STTA228AB

94' : 22037+0515
HU 491

97' : 22035+0649
HJ 3083

99' : 22035+0652
HJ 3084

102' : 21512+0546
HJ 3061

104' : 22044+0518
GWP3120

105' : 21514+0525
BAL2983

108' : 21575+0409
STTA225

109' : 22041+0657
GWP3119



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.

21580+0556 STF 2848 (HD 208718)

 
 
21h 58m 01.45s +05° 56' 25.3" P.A. 56.00 sep 10.9 mag 7.21,7.73 Sp Am+F2V dist. 625 pc (2038.75 l.y.)
 
 
Coord 2000 21580+0556 Discov num STF2848 Comp Coord arcsec 2000 21 58 01.45 +05 56 25.3
Date first 1777 Date last 2016 Obs 106
Pa first 75 Pa last 56.1 P.A. Now (θ) 56.1°
Sep first 16.0 Sep last 10.875 Sep. Now (ρ) 10.875"
Mag pri 7.21 Mag sec 7.73 delta mag (ΔM) 0.52 Spectral class Am+F2V (white/yellow-white)
Pri motion ra +012 Sec motion ra +022
Pri motion dec -012 Sec motion dec -014
Notes N Z (See Notes, Parallax indicates components are physical)
rPM=0.391
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 208718 Constellation Pegasus SAO 127196 HIP 108439
Tycho2 0557-01531-1 Gaia DR2 2697317737667726976 HD 208718 GC 30737
ADS 15493 BD BD+05 4910 Distance 625 Distance ly 2038.75
 
 
WDS 21580+0556 STF 2848 (HD 208718) : NOTES
 
 
discov_num notes refcode
STF2848 H 3 74. 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
21580+0556 STF2848 2007 85 56 10.8 7.21 7.73 Am F2V D 215801.45+055625.3
21580+0556 STF2848 2011 91 56 10.9 7.21 7.73 Am F2V N D 215801.45+055625.3
21580+0556 STF2848 2012 95 56 10.9 7.21 7.73 Am F2V N D 215801.45+055625.3
21580+0556 STF2848 2013 98 56 10.8 7.21 7.73 Am F2V N D 215801.45+055625.3
21580+0556 STF2848 2015 101 56 10.9 7.21 7.73 Am+F2V NZ 215801.45+055625.3
21580+0556 STF2848 2016 106 56 10.9 7.21 7.73 Am+F2V NZ 215801.45+055625.3

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

 
 
WDS 21580+0556 STF 2848 (HD 208718) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21580+0556 STF 2848 (HD 208718) : MEASURES
 
 
Records found: 2
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 11/09/27 pino_78 easy 0.00 10.90 0.00 57.00 0.00 0 Report - 27/09/2011 Doppia molto carina, con le due componenti di 7,2 e 7,7 separate da circa 11”. A 257x, anelli perfettamente visibili e incisi. Ho misurato questa coppia con il Baader Micro Guide ottenendo le seguenti misure: Sep. 10,9” e AP 57°. Misure più che soddisfacenti, visto che il WDS riporta 10.8” e 58°. Consiglio vivamente di provare questo oculare, perché di soddisfazioni ve ne può dare parecchie.
Show 11/09/27 pino_78 0 10.00 0.00 0.00 0.00 0.00 0
 
 
WDS 21580+0556 (HD 208718) : VIRTUAL EYEPIECE
 
 

21580+0556 STF2848A mag 7.21 Sp Am 21580+0556 STF2848B sep 10.8 P.A. 56.00 mag 7.73 Sp F2V 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 21580+0556 (HD 208718) : ALADIN DSS IMAGE @ 21h 58m 01.45s +05° 56' 25.3"
 
 
 
 
WDS 21580+0556 STF 2848 (HD 208718) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21580+0556 STF2848 distance=0' 21586+0601 SHJ 336AB distance=10' 21586+0601 SHJ 336AC distance=10' 21591+0541 GWP3111 distance=22' 21593+0537 HDS3123 distance=28' 21595+0617 HJ 3079 distance=31' 22000+0525 HEI 824 distance=43' 21566+0633 HU 381 distance=43' 22001+0528 FYM 334AB distance=43' 22001+0528 FYM 334AC distance=43' 21547+0606 SLW1256 distance=51' 21576+0501 HJ 3073 distance=56' 21542+0459 OSO 160AB distance=82' 21542+0459 OSO 160AC distance=82' 21565+0715 STT 453AB distance=82' 21565+0715 HJ 3069AB,C distance=82' 21534+0512 HJ 3064 distance=82' 21530+0518 HU 379 distance=84' 21557+0715 STT 452 distance=87' 21524+0623 SKF1871 distance=89' 21521+0549 J 916 distance=89' 21522+0538 JOD 23AB distance=90' 21522+0538 JOD 23AC distance=90' 22019+0446 STTA228AB distance=91' 22019+0446 STTA228AC distance=91' 22037+0515 HU 491 distance=94' 22035+0649 HJ 3083 distance=97' 22035+0652 HJ 3084 distance=99' 21512+0546 HJ 3061 distance=102' 22044+0518 GWP3120 distance=104' 21514+0525 BAL2983 distance=105' 21575+0409 STTA225 distance=108' 22041+0657 GWP3119 distance=109' 22055+0545 YSC 73 distance=112' 21544+0738 CVR 254 distance=116' 21502+0558 CBL 600 distance=118' 21504+0514 BRT2192 distance=122' 21547+0400 BAL2565 distance=127' 21551+0355 HEI 823 distance=129' 21585+0347 RAO 73 distance=130' 21492+0543 GIC 172 distance=133' 22058+0452 STF2856 distance=134' 21521+0739 OSO 158AB distance=135' 21521+0739 OSO 158AC distance=135' 21591+0814 GWP3110 distance=139' 22066+0653 SLW1261 distance=140' 21489+0523 HU 281 distance=141' 21573+0825 HJ 5523 distance=144' 22002+0822 OSO 165 distance=150' 22028+0345 KU 134 distance=150' 21483+0518 BRT2294 distance=151' 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 21580+0556 STF2848 56 10.9
Show 21586+0601 SHJ 336 AB 222 93.5 10
Show 21586+0601 SHJ 336 AC 101 84.1 10
Show 21591+0541 GWP3111 202 34.8 22
Show 21593+0537 HDS3123 245 0.3 28
Show 21595+0617 HJ 3079 74 10.0 31
Show 22000+0525 HEI 824 154 2.9 43
Show 21566+0633 HU 381 235 0.2 43
Show 22001+0528 FYM 334 AB 133 12.8 43
Show 22001+0528 FYM 334 AC 169 21.8 43
Show 21547+0606 SLW1256 203 31.1 51
Show 21576+0501 HJ 3073 18 25.6 56
Show 21542+0459 OSO 160 AB 316 13.8 82
Show 21542+0459 OSO 160 AC 225 25.6 82
Show 21565+0715 STT 453 AB 269 0.7 82
Show 21565+0715 HJ 3069 AB,C 75 23.9 82
Show 21534+0512 HJ 3064 141 9.1 82
Show 21530+0518 HU 379 253 1.4 84
Show 21557+0715 STT 452 177 0.8 87
Show 21524+0623 SKF1871 253 7.0 89
Show 21521+0549 J 916 184 1.7 89
Show 21522+0538 JOD 23 AB 288 0.2 90
Show 21522+0538 JOD 23 AC 35 0.7 90
Show 22019+0446 STTA228 AB 23 86.6 91
Show 22019+0446 STTA228 AC 183 13.3 91
Show 22037+0515 HU 491 260 1.0 94
Show 22035+0649 HJ 3083 210 31.6 97
Show 22035+0652 HJ 3084 53 15.1 99
Show 21512+0546 HJ 3061 105 17.0 102
Show 22044+0518 GWP3120 359 12.3 104
Show 21514+0525 BAL2983 16 6.0 105
Show 21575+0409 STTA225 287 75.2 108
Show 22041+0657 GWP3119 9 14.6 109
Show 22055+0545 YSC 73 170 0.4 112
Show 21544+0738 CVR 254 73 13.1 116
Show 21502+0558 CBL 600 253 12.0 118
Show 21504+0514 BRT2192 24 3.3 122
Show 21547+0400 BAL2565 208 3.9 127
Show 21551+0355 HEI 823 82 2.5 129
Show 21585+0347 RAO 73 89 12.4 130
Show 21492+0543 GIC 172 126 434.7 133
Show 22058+0452 STF2856 195 1.3 134
Show 21521+0739 OSO 158 AB 126 10.4 135
Show 21521+0739 OSO 158 AC 30 13.2 135
Show 21591+0814 GWP3110 31 19.6 139
Show 22066+0653 SLW1261 345 71.3 140
Show 21489+0523 HU 281 146 1.5 141
Show 21573+0825 HJ 5523 204 20.4 144
Show 22002+0822 OSO 165 36 9.7 150
Show 22028+0345 KU 134 260 55.6 150
Show 21483+0518 BRT2294 242 2.3 151

 
 
WDS 21580+0556 : COMPONENTS
 
 
  A
B pa=56.0°
sep=10.83"
 
 
21580+0556 A
 
 
Componente originario normalizzato AB Name HD 208718 Coord arcsec 2000 215801.45+055625.3 Mag 7.21
Spectral class Am (white) PmRA 12.00 PmDE -12.0 SAO 127196
HIP 108439 Tycho2 0557-01531-1 HD 208718 GC 30737
ADS 15493 BD BD+05 4910
Tycho2
Tycho2 0557-01531-1 Pflag RAmdeg 329.50604705 DEmdeg 5.94035418
PmRA 11.9 PmDE -12.8 E RAmdeg 5 E DEmdeg 5
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.38 EpDEm 1991.35
Num 11 Q RAmdeg 0.8 Q DEmdeg 1.2 Q pmRA 0.8
Q pmDE 1.2 BTmag 7.409 E BTmag 0.016 VTmag 7.212
E VTmag 0.011 Prox 108 TYC T HIP 108439
CCDM A RAdeg 329.50601944 DEdeg 5.94038417 EpRA 1990 1.71
EpDE 1990 1.60 E RAdeg 5.0 E DEdeg 5.3 Posflg
Corr -0.1
SAO
SAO 127196 DelFlag RA1950 PmRA1950 0.0012
DE1950 PmDE1950 -0.003 Vmag 7.3 SpType A2
Double code Source 70 CatNum 30737 DM BD+05 4910
DMcomp A BDsup HD 208718 M HD 1
GC 30737 RA1950rad 5.74003346 DE1950rad 0.09950991 PmRA2000 0.0013
PmDE2000 -0.008
Hipparcos
Catalog H HIP 108439 Proxy RAhms 21 58 01.44
DEdms +05 56 25.4 Vmag 7.2 VarFlag R Vmag G
RAdeg 329.506 DEdeg 5.94039 AstroRef A Plx 11
CCDM 21580+0556 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual A M HIP
Theta Rho HD 208718 BD BD+05 4910
CD CP Dm number +05 4910 VIred 0.02
SpType Am R SpType Coord arcsec 2000 215801.44+055625.4
Hipparcos 2
HIP 108439 Sn 95 So 3 Nc 1
RArad 5.7509649574 DErad 0.1036793285 Plx 1.6 PmRA 11.54
PmDE -20.29 E RArad 2.31 E DErad 2.14 E Plx 3.04
E pmRA 2.76 E pmDE 2.43 Hpmag 7.2378 E Hpmag 0.0134
SHp 0.075 VA 0 BV 0 E BV 0.006
VI 0.02
CCDM
Ccdm 21580+0556 RComp Comp A Note1
Note2 Discov num DRAs 1.40 DDEs 24.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.2 Sp A2 PmNote *
PmRA -1 PmDE -22 Dm number +05 4910 Cat1 BD
Name2 +05 3209 Cat2 AGK2/3 HD 208718 M HD
ADS BDS A15493 M ADS BDS N IDS IDS 21530N0528A
HIC 108439
 
 
21580+0556 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 215802.05+055631.4 Mag 7.73 Spectral class F2V (yellow-white)
PmRA 22.00 PmDE -14.0 HIP 108441 Tycho2 0557-01530-1
Calc delta mag 0.52 Calc coord yes
Tycho2
Tycho2 0557-01530-1 Pflag RAmdeg 329.50855300 DEmdeg 5.94202460
PmRA 12.7 PmDE -18.2 E RAmdeg 6 E DEmdeg 7
E pmRA 6.7 E pmDE 5.8 EpRAm 1991.74 EpDEm 1991.64
Num 2 Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 8.142 E BTmag 0.018 VTmag 7.730
E VTmag 0.013 Prox 108 TYC T HIP 108441
CCDM B RAdeg 329.50852389 DEdeg 5.94206694 EpRA 1990 1.75
EpDE 1990 1.66 E RAdeg 6.1 E DEdeg 6.6 Posflg
Corr 0.1
Hipparcos
Catalog H HIP 108441 Proxy RAhms 21 58 02.05
DEdms +05 56 31.5 Vmag 7.76 VarFlag R Vmag H
RAdeg 329.509 DEdeg 5.94207 AstroRef B Plx 15.98
CCDM 21580+0556 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual A M HIP
Theta Rho HD BD
CD CP Dm number VIred 0.51
SpType F2V R SpType Coord arcsec 2000 215802.05+055631.5
Hipparcos 2
HIP 108441 Sn 95 So 3 Nc 1
RArad 5.7510086613 DErad 0.103708716 Plx 8.48 PmRA 9.5
PmDE -22.88 E RArad 1.91 E DErad 1.81 E Plx 2.55
E pmRA 2.22 E pmDE 2.08 Hpmag 7.913 E Hpmag 0.0182
SHp 0 VA 0 BV 0.413 E BV 0.005
VI 0.51
CCDM
Ccdm 21580+0556 RComp Comp B Note1
Note2 Discov num STF2848 DRAs 2.01 DDEs 30.6
R dRAs 91 Year 1829 Theta 056 Rho 10.7
Obs 20 Vmag 7.5 Sp PmNote *
PmRA 1 PmDE -22 Dm number Cat1
Name2 +05 3210 Cat2 AGK2/3 HD M HD
ADS BDS A15493 M ADS BDS N IDS IDS 21530N0528B
HIC 108441