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Doubles in session


Current system
20568+4254
ENG 77 AB
HD 199580


Nearby doubles
15' : 20564+4308
COU2544

17' : 20556+4243
BRT2282

21' : 20584+4303
ES 1575

21' : 20569+4233
GRV 399

24' : 20590+4259
LDS2475

26' : 20573+4319
ES 1450

27' : 20592+4257
ES 1576

29' : 20553+4231
STT 423

34' : 20553+4322
LDS2468

38' : 20584+4326
ES 1451

40' : 20553+4218
OSO 137AB

41' : 20550+4219
LDS2467

41' : 20565+4333
BRT1139

42' : 20568+4335
BRT1957

43' : 20530+4258
COU2542

44' : 20598+4321
LDS2479

44' : 20590+4330
LDS2476

44' : 20598+4225
CLZ 78

50' : 20547+4211
CVR 233

51' : 20535+4328
LDS2465

52' : 20559+4345
COU2543

52' : 20524+4314
LDS2462

52' : 21015+4301
TDT2698

56' : 20519+4309
GRV 389

56' : 20595+4339
LDS2478

60' : 20534+4208
LDS2464



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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20568+4254 ENG 77 AB (HD 199580)

 
 
20h 56m 48.02s +42° 53' 44.3" P.A. 328.00 sep 100.0 mag 7.31,10.16 Sp K0III-IV dist. 87.26 pc (284.64 l.y.)
 
 
Coord 2000 20568+4254 Discov num ENG  77 Comp AB Coord arcsec 2000 20 56 48.02 +42 53 44.3
Date first 1892 Date last 2002 Obs 11
Pa first 355 Pa last 328.4 P.A. Now (θ) 328.4°
Sep first 116.9 Sep last 100.047 Sep. Now (ρ) 100.047"
Mag pri 7.31 Mag sec 10.16 delta mag (ΔM) 2.85 Spectral class K0III-IV (yellow-orange)
Pri motion ra +219 Sec motion ra -152
Pri motion dec +224 Sec motion dec -064
Notes N L U (See Notes, Linear solution, Proper motion indicates non-physical)
rPM=1.499
This double is not physical.
 
 
20568+4254 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 199580 50265 20 56 48 +42 53 44 ENG 77 AB 2002 11 328 100.0 7.31 10.16 2.85 <===
Show 50265 20 56 48 +42 53 44 ENG 77 AC 2012 18 17 125.8 7.31 9.13 1.82
Show 20 56 43 +42 55 10 ENG 77 BC 2014 16 69 102.7 10.16 9.13 1.03
Show 20 56 52 +42 55 46 ENG 77 CD 2015 14 356 92.9 9.13 11.06 1.93
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 199580 Constellation Cygnus SAO 50265 HIP 103392
Tycho2 3175-00075-1 Gaia DR2 2162015863124935168 HD 199580 GC 29247
BD BD+42 3915 Distance 87.26 Distance ly 284.64
 
 
WDS 20568+4254 ENG 77 AB (HD 199580) : NOTES
 
 
discov_num notes refcode
ENG 77 AB and AC: Optical pairs, based on study of relative motion of the
components using the method of apparent motion parameters. Kiy2008
 
 
REFERENCES
 
 
refcode metd author reference
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
 
 
DISCOVERER
 
 
idgroup discov author
1 ENG changed from EN to ENG and that for Engelhardt from ENG to ENH. This has led to
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20568+4254 ENG 77 AB 2002 10 331 99.7 7.31 10.16 K0III-IV NLD 205648.02+425344.3

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

 
 
WDS 20568+4254 ENG 77 AB (HD 199580) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20568+4254 ENG 77 AB (HD 199580) : MEASURES
 
 
No records found.

 
 
WDS 20568+4254 (HD 199580) : VIRTUAL EYEPIECE
 
 

20568+4254 ENG 77A mag 7.31 Sp K0III 20568+4254 ENG 77B sep 99.9 P.A. 329.00 mag 10.16 20568+4254 ENG 77C sep 128.4 P.A. 19.30 mag 9.13 Sp A2 20568+4254 ENG 77D sep 217.2 P.A. 10.10 mag 11.06 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 20568+4254 (HD 199580) : ALADIN DSS IMAGE @ 20h 56m 48.02s +42° 53' 44.3"
 
 
 
 
WDS 20568+4254 ENG 77 AB (HD 199580) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20568+4254 ENG 77AB distance=0' 20568+4254 ENG 77BC distance=2' 20568+4254 ENG 77CD distance=3' 20564+4308 COU2544 distance=15' 20556+4243 BRT2282 distance=17' 20584+4303 ES 1575 distance=21' 20569+4233 GRV 399 distance=21' 20590+4259 LDS2475 distance=24' 20573+4319 ES 1450 distance=26' 20592+4257 ES 1576 distance=27' 20553+4231 STT 423 distance=29' 20553+4322 LDS2468 distance=34' 20584+4326 ES 1451 distance=38' 20553+4218 OSO 137AB distance=40' 20553+4218 OSO 137AC distance=40' 20553+4218 OSO 137AD distance=40' 20553+4218 OSO 137AE distance=40' 20553+4218 OSO 137AF distance=40' 20553+4218 OSO 137AG distance=40' 20550+4219 LDS2467 distance=41' 20565+4333 BRT1139 distance=41' 20568+4335 BRT1957 distance=42' 20530+4258 COU2542 distance=43' 20598+4321 LDS2479 distance=44' 20590+4330 LDS2476 distance=44' 20598+4225 CLZ 78 distance=44' 20547+4211 CVR 233 distance=50' 20535+4328 LDS2465 distance=51' 20559+4345 COU2543 distance=52' 20524+4314 LDS2462 distance=52' 21015+4301 TDT2698 distance=52' 20519+4309 GRV 389 distance=56' 20595+4339 LDS2478 distance=56' 20534+4208 LDS2464 distance=60' 20517+4317 LDS2461 distance=61' 20513+4238 A 614 distance=63' 21022+4235 ES 1577 distance=63' 21024+4236 ES 1578 distance=64' 20508+4238 LDS2457 distance=69' 20511+4224 BRT2277 distance=69' 21027+4218 LDS6351 distance=73' 20520+4346 SKF2740BC distance=74' 20520+4346 STT 416AB distance=74' 20539+4139 BRT2280 distance=82' 21039+4322 TDT2722 distance=84' 20534+4139 ES 1574 distance=84' 21040+4225 COU2433 distance=85' 21041+4225 GII 54 distance=86' 20525+4138 LDS2463 distance=91' 21032+4158 COU2432 distance=91' 20569+4122 LDS2471 distance=92' 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 20568+4254 ENG 77 AB 328 100.0
Show 20568+4254 ENG 77 AC 17 125.8
Show 20568+4254 ENG 77 BC 69 102.7 2
Show 20568+4254 ENG 77 CD 356 92.9 3
Show 20564+4308 COU2544 160 0.4 15
Show 20556+4243 BRT2282 276 2.5 17
Show 20584+4303 ES 1575 356 5.3 21
Show 20569+4233 GRV 399 6 64.8 21
Show 20590+4259 LDS2475 90 12.2 24
Show 20573+4319 ES 1450 162 4.7 26
Show 20592+4257 ES 1576 350 3.7 27
Show 20553+4231 STT 423 76 2.7 29
Show 20553+4322 LDS2468 107 60.0 34
Show 20584+4326 ES 1451 101 8.6 38
Show 20553+4218 OSO 137 AB 116 10.8 40
Show 20553+4218 OSO 137 AC 225 11.6 40
Show 20553+4218 OSO 137 AD 276 14.3 40
Show 20553+4218 OSO 137 AE 295 14.9 40
Show 20553+4218 OSO 137 AF 137 16.8 40
Show 20553+4218 OSO 137 AG 346 25.0 40
Show 20550+4219 LDS2467 193 20.0 41
Show 20565+4333 BRT1139 175 3.6 41
Show 20568+4335 BRT1957 177 1.1 42
Show 20530+4258 COU2542 199 0.1 43
Show 20598+4321 LDS2479 287 2.0 44
Show 20590+4330 LDS2476 65 3.0 44
Show 20598+4225 CLZ 78 347 38.2 44
Show 20547+4211 CVR 233 235 61.5 50
Show 20535+4328 LDS2465 41 12.1 51
Show 20559+4345 COU2543 222 1.6 52
Show 20524+4314 LDS2462 265 39.5 52
Show 21015+4301 TDT2698 6 0.6 52
Show 20519+4309 GRV 389 190 61.9 56
Show 20595+4339 LDS2478 125 2.2 56
Show 20534+4208 LDS2464 331 43.8 60
Show 20517+4317 LDS2461 217 32.6 61
Show 20513+4238 A 614 333 1.5 63
Show 21022+4235 ES 1577 41 5.8 63
Show 21024+4236 ES 1578 233 2.8 64
Show 20508+4238 LDS2457 106 5.1 69
Show 20511+4224 BRT2277 230 4.2 69
Show 21027+4218 LDS6351 156 134.5 73
Show 20520+4346 SKF2740 BC 192 73.4 74
Show 20520+4346 STT 416 AB 117 9.6 74
Show 20539+4139 BRT2280 192 5.0 82
Show 21039+4322 TDT2722 20 0.5 84
Show 20534+4139 ES 1574 158 1.4 84
Show 21040+4225 COU2433 52 0.3 85
Show 21041+4225 GII 54 246 5.3 86
Show 20525+4138 LDS2463 151 27.8 91
Show 21032+4158 COU2432 24 0.8 91

 
 
WDS 20568+4254 : COMPONENTS
 
 
  A B C
B pa=329.0°
sep=99.86"
 
C pa=19.3°
sep=128.40"
pa=69.2°
sep=100.33"
 
D pa=10.1°
sep=217.23"
pa=34.9°
sep=156.36"
pa=357.3°
sep=92.79"
 
 
20568+4254 A
 
 
Name HD 199580 Coord arcsec 2000 205648.02+425344.3 Mag 7.31 Spectral class K0III (yellow-orange)
PmRA 219.00 PmDE 224.0 SAO 50265 HIP 103392
Tycho2 3175-00075-1 HD 199580 GC 29247 BD BD+42 3915
Tycho2
Tycho2 3175-00075-1 Pflag RAmdeg 314.20008464 DEmdeg 42.89566295
PmRA 220.0 PmDE 224.7 E RAmdeg 4 E DEmdeg 4
E pmRA 0.9 E pmDE 1.0 EpRAm 1991.44 EpDEm 1991.54
Num 11 Q RAmdeg 0.8 Q DEmdeg 0.8 Q pmRA 0.7
Q pmDE 0.7 BTmag 8.431 E BTmag 0.016 VTmag 7.308
E VTmag 0.010 Prox 999 TYC T HIP 103392
CCDM RAdeg 314.19939333 DEdeg 42.89515000 EpRA 1990 1.71
EpDE 1990 1.78 E RAdeg 4.4 E DEdeg 4.4 Posflg
Corr 0.0
SAO
SAO 50265 DelFlag RA1950 PmRA1950 0.0205
DE1950 PmDE1950 0.223 Vmag 7.9 SpType K0
Double code Source 70 CatNum 29247 DM BD+42 3915
DMcomp BDsup HD 199580 M HD 0
GC 29247 RA1950rad 5.4758089 DE1950rad 0.74524179 PmRA2000 0.0208
PmDE2000 0.221
Hipparcos
Catalog H HIP 103392 Proxy RAhms 20 56 47.85
DEdms +42 53 42.4 Vmag 7.21 VarFlag R Vmag G
RAdeg 314.199 DEdeg 42.8951 AstroRef Plx 11.64
CCDM 20568+4254 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 199580 BD BD+42 3915
CD CP Dm number +42 3915 VIred 1.01
SpType K0III-IV R SpType Coord arcsec 2000 205647.85+425342.4
Hipparcos 2
HIP 103392 Sn 5 So 0 Nc 1
RArad 5.4838133671 DErad 0.7486610288 Plx 11.46 PmRA 218.71
PmDE 224.44 E RArad 0.38 E DErad 0.39 E Plx 0.5
E pmRA 0.47 E pmDE 0.46 Hpmag 7.3635 E Hpmag 0.0009
SHp 0.01 VA 0 BV 0.96 E BV 0
VI 1.01
CCDM
Ccdm 20568+4254 RComp Comp A Note1
Note2 Discov num DRAs -0.03 DDEs -15.9
R dRAs 10 Year Theta Rho
Obs 4 Vmag 8.0 Sp K0 PmNote *
PmRA 211 PmDE 222 Dm number +42 3915 Cat1 BD
Name2 +42 1954 Cat2 AGK2/3 HD 199580 M HD
ADS BDS M ADS BDS N IDS IDS 20531N4230A
HIC 103392
 
 
20568+4254 B
 
 
Coord arcsec 2000 205643.34+425509.9 Coord calc 205643.34+425509.9 Mag 10.16 PmRA -152.00
PmDE -64.0 Tycho2 3175-00317-1 Calc delta mag 2.85
Tycho2
Tycho2 3175-00317-1 Pflag RAmdeg 314.18057376 DEmdeg 42.91941081
PmRA -151.4 PmDE -64.2 E RAmdeg 22 E DEmdeg 23
E pmRA 1.5 E pmDE 1.5 EpRAm 1988.08 EpDEm 1987.23
Num 4 Q RAmdeg 0.7 Q DEmdeg 0.5 Q pmRA 0.7
Q pmDE 0.5 BTmag 11.183 E BTmag 0.055 VTmag 10.161
E VTmag 0.035 Prox 991 TYC T HIP
CCDM RAdeg 314.18104528 DEdeg 42.91955556 EpRA 1990 1.71
EpDE 1990 1.74 E RAdeg 25.0 E DEdeg 28.3 Posflg
Corr -0.1
CCDM
Ccdm 20568+4254 RComp Comp B Note1
Note2 Discov num BUP DRAs DDEs
R dRAs Year 1920 Theta 349 Rho 110.7
Obs 4 Vmag 10.2 Sp PmNote
PmRA -146 PmDE -76 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20531N4230B
HIC
 
 
20568+4254 C
 
 
Coord arcsec 2000 205651.88+425545.5 Coord calc 205651.88+425545.5 Mag 9.13 Spectral class A2 (white)
PmRA -6.00 PmDE -13.0 Tycho2 3175-00251-1 Calc delta mag 1.82
Tycho2
Tycho2 3175-00251-1 Pflag RAmdeg 314.21617210 DEmdeg 42.92932546
PmRA -5.7 PmDE -11.9 E RAmdeg 8 E DEmdeg 9
E pmRA 1.1 E pmDE 1.1 EpRAm 1990.97 EpDEm 1990.80
Num 8 Q RAmdeg 0.8 Q DEmdeg 0.7 Q pmRA 0.8
Q pmDE 0.6 BTmag 9.258 E BTmag 0.018 VTmag 9.134
E VTmag 0.017 Prox 927 TYC T HIP
CCDM RAdeg 314.21619083 DEdeg 42.92935250 EpRA 1990 1.72
EpDE 1990 1.76 E RAdeg 7.7 E DEdeg 8.7 Posflg
Corr 0.0
CCDM
Ccdm 20568+4254 RComp Comp C Note1
Note2 Discov num BUP DRAs 3.86 DDEs 108.3
R dRAs 12 Year 1920 Theta 024 Rho 152.4
Obs 4 Vmag 9.3 Sp PmNote
PmRA -11 PmDE 45 Dm number +42 3917 Cat1 BD
Name2 +42 1955 Cat2 AGK2/3 HD M HD
ADS BDS M ADS BDS N IDS IDS 20531N4230C
HIC
 
 
20568+4254 D
 
 
Coord arcsec 2000 205651.48+425718.2 Mag 11.06 PmRA 5.00 PmDE -8.0
Tycho2 3175-00025-1 Calc delta mag 3.75 Calc coord yes
Tycho2
Tycho2 3175-00025-1 Pflag RAmdeg 314.21388418 DEmdeg 42.95502346
PmRA 7.5 PmDE -11.1 E RAmdeg 44 E DEmdeg 46
E pmRA 1.8 E pmDE 1.7 EpRAm 1984.85 EpDEm 1983.42
Num 3 Q RAmdeg 1.0 Q DEmdeg 0.3 Q pmRA 0.9
Q pmDE 0.3 BTmag 11.947 E BTmag 0.093 VTmag 11.063
E VTmag 0.066 Prox 927 TYC T HIP
CCDM RAdeg 314.21386056 DEdeg 42.95504889 EpRA 1990 1.71
EpDE 1990 1.80 E RAdeg 45.5 E DEdeg 48.3 Posflg
Corr 0.0
CCDM
Ccdm 20568+4254 RComp C Comp D Note1
Note2 Discov num BUP DRAs DDEs
R dRAs Year 1920 Theta 357 Rho 92.6
Obs 4 Vmag 10.8 Sp PmNote
PmRA 13 PmDE 9 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20531N4230D
HIC