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Doubles in session


Current system
20501+4404
FYM 92 AF


Nearby doubles
18' : 20512+4415
CHN 31

19' : 20506+4421
CHN 29

20' : 20509+4421
CHN 30AB

28' : 20520+4346
STT 416AB

32' : 20476+4347
CHN 28

35' : 20473+4345
COU2425

37' : 20525+4430
BRT2279

39' : 20472+4427
COU2424

40' : 20532+4423
LSC 94

41' : 20521+4438
HER 18

43' : 20470+4335
GRV 380AB

44' : 20461+4353
GRV 378

44' : 20461+4410
BRT2275

50' : 20494+4452
TDS1103

50' : 20517+4317
LDS2461

51' : 20535+4328
LDS2465

56' : 20494+4458
GRV 384

56' : 20455+4338
A 611

57' : 20524+4314
LDS2462

57' : 20538+4443
LDS5914

58' : 20511+4459
LDS2459

58' : 20519+4309
GRV 389

58' : 20474+4314
TDT2539

59' : 20452+4337
ES 1449

61' : 20449+4425
ES 1332

62' : 20504+4518
SMA 121



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.

20501+4404 FYM 92 AF

 
 
20h 50m 04.93s +44° 03' 33.5" P.A. 80.00 sep 46.9 mag 5.04,15.00 Sp A4me dist. 40.97 pc (133.64 l.y.)
 
 
Coord 2000 20501+4404 Discov num FYM  92 Comp AF Coord arcsec 2000 20 50 04.93 +44 03 33.5
Date first 2000 Date last 2015 Obs 6
Pa first 78 Pa last 79.6 P.A. Now (θ) 79.6°
Sep first 48.9 Sep last 46.859 Sep. Now (ρ) 46.859"
Mag pri 5.04 Mag sec 15.00 delta mag (ΔM) 9.96 Spectral class A4me (white)
Pri motion ra +123 Sec motion ra
Pri motion dec +132 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
20501+4404 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 56 Cyg 50121 20 50 05 +44 03 34 STT 595 AB 2015 20 48 55.4 5.04 11.90 6.86
Show 50121 20 50 05 +44 03 34 STG 9 AC 2014 7 83 102.7 5.04 13.11 8.07
Show 50121 20 50 05 +44 03 34 FYM 92 AD 2015 6 242 51.8 5.04 14.20 9.16
Show 50121 20 50 05 +44 03 34 FYM 92 AE 2015 6 190 35.2 5.04 13.90 8.86
Show 50121 20 50 05 +44 03 34 FYM 92 AF 2015 6 80 46.9 5.04 15.00 9.96 <===
Sextuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 50121 HIP 102843 Tycho2 3179-01248-1
Gaia DR2 2067050940754838656 HD 198639 HR 7984 GC 29066
BD BD+43 3739 Flamsteed 56 Cygni Flamsteed name 56 Cyg FK5 3666
Distance 40.97 Distance ly 133.64
 
 
WDS 20501+4404 FYM 92 AF : NOTES
 
 
discov_num notes refcode
STT 595 AB: 56 Cyg.
AB: Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
AB: Rectilinear solution by Hurowitz et al. (2014). USN2014b
 
 
REFERENCES
 
 
refcode metd author reference
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
USN2014b lin - Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D. 2014IAUDS.183....1H
USN2014b Inf. Circ. 183, 1, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 FYM Fay, M.
28 STG Struve, G.
35 STT Struve, O.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20501+4404 FYM 92 AF 2012 3 80 46.5 5.04 15.00 A4me 205004.93+440333.5
20501+4404 FYM 92 AF 2015 4 80 46.9 5.04 15.00 A4me N 205004.93+440333.5

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

 
 
WDS 20501+4404 FYM 92 AF : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20501+4404 FYM 92 AF : MEASURES
 
 
No records found.

 
 
WDS 20501+4404 : VIRTUAL EYEPIECE
 
 

20501+4404 STT 595A mag 5.04 Sp A4me 20501+4404 STT 595B sep 47.5 P.A. 38.20 mag 11.9 20501+4404 STG 9C sep 74.3 P.A. 80.00 mag 13.11 20501+4404 FYM 92D sep 40.9 P.A. 233.50 mag 14.2 20501+4404 FYM 92E sep 34.9 P.A. 187.10 mag 13.9 20501+4404 FYM 92F sep 34.2 P.A. 75.70 mag 15 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 20501+4404 : ALADIN DSS IMAGE @ 20h 50m 04.93s +44° 03' 33.5"
 
 
 
 
WDS 20501+4404 FYM 92 AF : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20501+4404 FYM 92AF distance=0' 20512+4415 CHN 31 distance=18' 20506+4421 CHN 29 distance=19' 20509+4421 CHN 30AB distance=20' 20509+4421 CHN 30Aa,Ab distance=20' 20520+4346 STT 416AB distance=28' 20520+4346 SKF2740BC distance=28' 20476+4347 CHN 28 distance=32' 20473+4345 COU2425 distance=35' 20525+4430 BRT2279 distance=37' 20472+4427 COU2424 distance=39' 20532+4423 LSC 94 distance=40' 20521+4438 HER 18 distance=41' 20470+4335 GRV 380AB distance=43' 20470+4335 GRV 380AC distance=43' 20461+4353 GRV 378 distance=44' 20461+4410 BRT2275 distance=44' 20494+4452 TDS1103 distance=50' 20517+4317 LDS2461 distance=50' 20535+4328 LDS2465 distance=51' 20494+4458 GRV 384 distance=56' 20455+4338 A 611 distance=56' 20524+4314 LDS2462 distance=57' 20538+4443 LDS5914 distance=57' 20511+4459 LDS2459 distance=58' 20519+4309 GRV 389 distance=58' 20474+4314 TDT2539 distance=58' 20452+4337 ES 1449 distance=59' 20449+4425 ES 1332 distance=61' 20504+4518 SMA 121 distance=62' 20459+4448 ES 2701 distance=63' 20449+4332 ES 1448 distance=65' 20461+4452 ES 30 distance=65' 20559+4345 COU2543 distance=66' 20553+4322 LDS2468 distance=70' 20549+4451 LDS2466 distance=70' 20530+4258 COU2542 distance=73' 20565+4333 BRT1139 distance=75' 20558+4448 ES 674 distance=76' 20556+4453 COU2648 distance=77' 20514+4519 ARG 40 distance=77' 20500+4521 ES 2702 distance=78' 20568+4335 BRT1957 distance=78' 20542+4508 LDS5915 distance=78' 20485+4519 LDS2456 distance=79' 20563+4447 ES 675BC distance=79' 20567+4439 BRT2283 distance=79' 20432+4431 COU2422 distance=80' 20563+4447 ES 675AB distance=80' 20565+4447 TOB 203 distance=82' 20504+4525 LDS5912 distance=82' 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 20501+4404 STT 595 AB 48 55.4
Show 20501+4404 STG 9 AC 83 102.7
Show 20501+4404 FYM 92 AD 242 51.8
Show 20501+4404 FYM 92 AE 190 35.2
Show 20501+4404 FYM 92 AF 80 46.9
Show 20512+4415 CHN 31 47 6.7 18
Show 20506+4421 CHN 29 52 5.3 19
Show 20509+4421 CHN 30 AB 92 2.7 20
Show 20509+4421 CHN 30 Aa,Ab 108 0.6 20
Show 20520+4346 STT 416 AB 117 9.6 28
Show 20520+4346 SKF2740 BC 192 73.4 28
Show 20476+4347 CHN 28 57 5.0 32
Show 20473+4345 COU2425 58 0.2 35
Show 20525+4430 BRT2279 5 4.5 37
Show 20472+4427 COU2424 255 0.5 39
Show 20532+4423 LSC 94 183 0.3 40
Show 20521+4438 HER 18 85 60.7 41
Show 20470+4335 GRV 380 AB 16 21.4 43
Show 20470+4335 GRV 380 AC 312 44.6 43
Show 20461+4353 GRV 378 135 35.3 44
Show 20461+4410 BRT2275 10 2.8 44
Show 20494+4452 TDS1103 200 0.8 50
Show 20517+4317 LDS2461 217 32.6 50
Show 20535+4328 LDS2465 41 12.1 51
Show 20494+4458 GRV 384 222 22.1 56
Show 20455+4338 A 611 176 0.3 56
Show 20524+4314 LDS2462 265 39.5 57
Show 20538+4443 LDS5914 124 6.2 57
Show 20511+4459 LDS2459 228 43.7 58
Show 20519+4309 GRV 389 190 61.9 58
Show 20474+4314 TDT2539 77 0.5 58
Show 20452+4337 ES 1449 57 6.7 59
Show 20449+4425 ES 1332 325 7.0 61
Show 20504+4518 SMA 121 32 11.6 62
Show 20459+4448 ES 2701 81 50.9 63
Show 20449+4332 ES 1448 142 2.0 65
Show 20461+4452 ES 30 57 17.1 65
Show 20559+4345 COU2543 222 1.6 66
Show 20553+4322 LDS2468 107 60.0 70
Show 20549+4451 LDS2466 287 4.8 70
Show 20530+4258 COU2542 199 0.1 73
Show 20565+4333 BRT1139 175 3.6 75
Show 20558+4448 ES 674 94 5.6 76
Show 20556+4453 COU2648 21 1.3 77
Show 20514+4519 ARG 40 250 9.2 77
Show 20500+4521 ES 2702 348 8.6 78
Show 20568+4335 BRT1957 177 1.1 78
Show 20542+4508 LDS5915 43 18.0 78
Show 20485+4519 LDS2456 236 18.0 79
Show 20563+4447 ES 675 BC 108 3.7 79
Show 20567+4439 BRT2283 339 6.0 79

 
 
WDS 20501+4404 : COMPONENTS
 
 
  A B C D E
B pa=38.2°
sep=47.54"
 
C pa=80.0°
sep=74.34"
pa=119.2°
sep=50.19"
 
D pa=233.5°
sep=40.85"
pa=225.3°
sep=87.61"
pa=250.7°
sep=112.38"
 
E pa=187.1°
sep=34.94"
pa=205.1°
sep=79.53"
pa=238.5°
sep=90.95"
pa=110.0°
sep=30.37"
 
F pa=75.7°
sep=34.18"
pa=172.7°
sep=29.14"
pa=263.7°
sep=40.34"
pa=63.6°
sep=73.65"
pa=41.0°
sep=57.11"
 
 
20501+4404 A
 
 
Name 56 Cyg Coord arcsec 2000 205004.93+440333.5 Mag 5.04 Spectral class A4me (white)
PmRA 123.00 PmDE 132.0 SAO 50121 HIP 102843
Tycho2 3179-01248-1 HD 198639 HR 7984 GC 29066
BD BD+43 3739 Flamsteed 56 Cygni Flamsteed name 56 Cyg FK5 3666
Tycho2
Tycho2 3179-01248-1 Pflag RAmdeg 312.52054655 DEmdeg 44.05930639
PmRA 122.8 PmDE 133.2 E RAmdeg 3 E DEmdeg 3
E pmRA 0.8 E pmDE 0.8 EpRAm 1991.49 EpDEm 1991.40
Num 18 Q RAmdeg 0.7 Q DEmdeg 1.0 Q pmRA 0.6
Q pmDE 1.0 BTmag 5.290 E BTmag 0.014 VTmag 5.074
E VTmag 0.009 Prox 999 TYC T HIP 102843
CCDM RAdeg 312.52015389 DEdeg 44.05899528 EpRA 1990 1.72
EpDE 1990 1.60 E RAdeg 3.3 E DEdeg 3.4 Posflg
Corr 0.0
SAO
SAO 50121 DelFlag RA1950 PmRA1950 0.0113
DE1950 PmDE1950 0.137 Vmag 5.1 SpType A5
Double code Source 70 CatNum 29066 DM BD+43 3739
DMcomp BDsup HD 198639 M HD 0
GC 29066 RA1950rad 5.44675348 DE1950rad 0.76567885 PmRA2000 0.0116
PmDE2000 0.135
Hipparcos
Catalog H HIP 102843 Proxy RAhms 20 50 04.83
DEdms +44 03 32.3 Vmag 5.06 VarFlag R Vmag G
RAdeg 312.52 DEdeg 44.059 AstroRef Plx 23.67
CCDM 20501+4404 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 198639 BD BD+43 3739
CD CP Dm number +43 3739 VIred 0.2
SpType A4me... R SpType Coord arcsec 2000 205004.83+440332.3
Hipparcos 2
HIP 102843 Sn 5 So 0 Nc 1
RArad 5.4545052704 DErad 0.7689743058 Plx 24.41 PmRA 123.27
PmDE 131.81 E RArad 0.19 E DErad 0.16 E Plx 0.22
E pmRA 0.24 E pmDE 0.18 Hpmag 5.1189 E Hpmag 0.0006
SHp 0.006 VA 0 BV 0.198 E BV 0.002
VI 0.2
CCDM
Ccdm 20501+4404 RComp Comp A Note1
Note2 Discov num DRAs -1.09 DDEs -26.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.1 Sp A5 PmNote *
PmRA 122 PmDE 133 Dm number +43 3739 Cat1 BD
Name2 +43 1894 Cat2 AGK2/3 HD 198639 M HD
ADS BDS M ADS BDS N IDS IDS 20466N4341A
HIC 102843
 
 
20501+4404 B
 
 
Coord arcsec 2000 205007.66+440410.9 Mag 11.9 PmRA 5.00 PmDE -15.0
Calc delta mag 6.86 Calc coord yes
CCDM
Ccdm 20501+4404 RComp Comp B Note1
Note2 Discov num BUP DRAs DDEs
R dRAs Year 1907 Theta 046 Rho 75.5
Obs 4 Vmag 11.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20466N4341B
HIC
 
 
20501+4404 C
 
 
Coord arcsec 2000 205011.72+440346.4 Mag 13.11 PmRA -15.00 PmDE -5.0
Calc delta mag 8.07 Calc coord yes
 
 
20501+4404 D
 
 
Coord arcsec 2000 205001.88+440309.2 Mag 14.2 Calc delta mag 9.16 Calc coord yes
 
 
20501+4404 E
 
 
Coord arcsec 2000 205004.53+440258.8 Mag 13.9 Calc delta mag 8.86 Calc coord yes
 
 
20501+4404 F
 
 
Coord arcsec 2000 205008.00+440342.0 Mag 15 Calc delta mag 9.96 Calc coord yes