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Doubles in session


Current system
20434+3535
EVS 44 AD


Nearby doubles
19' : 20448+3542
SEI1234

21' : 20430+3555
HJ 1568

22' : 20449+3524
SEI1235

22' : 20451+3529
COU1809

24' : 20452+3531
SEI1237

27' : 20418+3553
HJ 1560AB

30' : 20423+3601
TDT2481

30' : 20456+3521
TDT2520

31' : 20414+3515
COU1964

32' : 20450+3600
ALI 204

32' : 20422+3510
POP 9

34' : 20435+3609
ES 2195AB

35' : 20411+3516
COU1963AB

35' : 20462+3533
ES 2252AB

37' : 20462+3546
SEI1243AB

38' : 20460+3554
TDT2525

41' : 20460+3601
SEI1242

42' : 20465+3550
ES 2196

42' : 20424+3455
COU1965

44' : 20444+3617
GII 53

44' : 20406+3603
SEI1213

44' : 20464+3511
COU1810

45' : 20401+3551
SEI1211

47' : 20403+3508
TDT2460

47' : 20471+3545
SEI1247

50' : 20394+3541
TOB 194



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.

20434+3535 EVS 44 AD

 
 
20h 43m 24.20s +35° 35' 16.1" P.A. 298.00 sep 14.8 mag 6.39,16.33 Sp F7Ib dist. 1538.46 pc (5018.46 l.y.)
 
 
Coord 2000 20434+3535 Discov num EVS  44 Comp AD Coord arcsec 2000 20 43 24.20 +35 35 16.1
Date first 2011 Date last 2011 Obs 1
Pa first 298 Pa last 298.3 P.A. Now (θ) 298.3°
Sep first 14.8 Sep last 14.8 Sep. Now (ρ) 14.8"
Mag pri 6.39 Mag sec 16.33 delta mag (ΔM) 9.94 Spectral class F7Ib (yellow-white)
Pri motion ra -007 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes N U (See Notes, Proper motion indicates non-physical)
This double is not physical.
 
 
20434+3535 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 70423 20 43 24 +35 35 16 ISM 5 AB 1990 1 145 0.0 6.48
Show X Cyg 70423 20 43 24 +35 35 16 EVS 44 AC 2011 1 96 12.9 6.39 18.61 12.22
Show 70423 20 43 24 +35 35 16 EVS 44 AD 2011 1 298 14.8 6.39 16.33 9.94 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name X Cyg Constellation Cygnus SAO 70423 HIP 102276
Tycho2 2695-04136-1 Gaia DR2 1870258975238302208 HD 197572 HR 7932
GC 28886 BD BD+35 4234 Distance 1538.46 Distance ly 5018.46
 
 
WDS 20434+3535 EVS 44 AD : NOTES
 
 
discov_num notes refcode
ISM 5 The Cepheid X Cyg.
 
 
REFERENCES
 
 
refcode metd author reference
Evs1993 C - Udalski, A. & Evans, N.R. 1993AJ....106..348U
Evs1993 AJ 106, 348, 1993
Evs1994 C - Evans, N.R. & Udalski, A. 1994AJ....108..653E
Evs1994 AJ 108, 653, 1994
Evs2005 Ha j Evans, N.R., Schaefer, G., Bond, H., Bono, G., Karovska, M., Nelan, E., & 2005AAS...207.1104E
Evs2005 Sasselov, D.
Evs2005 +orb AAS meeting 207, #11.04, 2006
Evs2006 H j Evans, N.R., Franz, O., Massa, D., Mason, B., Walker, R.L., & Marovska, M. 2006PASP..118.1545E
Evs2006 +S PASP 118, 1545, 2006
Evs2008 Ha j Evans, N.R., Schaefer, G.H., Bond, H., Bono, G., Karovska, M., Nelan, E., 2008AJ....136.1137E
Evs2008 Sasselov, D., & Mason, B.D.
Evs2008 AJ 136, 1137, 2008
Evs2009 Hs j Evans, N.R., Massa, D., & Proffitt, C. 2009AJ....137.3700E
Evs2009 +E2 AJ 137, 3700, 2009
Evs2013 Hp j Evans, N.R., Bond, H.E., Schaefer, G.H., Mason, B.D., Karovska, M., & Tingle, E. 2013AJ....146...93E
Evs2013 +X AJ 146, 93, 2013
Evs2016a H3 - Evans, N.R., Bond, H.E., Schaefer, G.H., Mason, B.D., Tingle, E., Karovska, M., & 2016AJ....151..129E
Evs2016a Pillitteri, I.
Evs2016a AJ 151, 129, 2016
Evs2016a (some theta values replaced with more precise values from Evs2016b) 2016AJ....151..108E
Evs2016b H3 - Evans, N.R., Pillitteri, I., Wolk, S., Karovska, M., Tingle, E., Guinan, E., 2016AJ....151..108E
Evs2016b Engle, S., Bond, H.E., Schaefer, G.H., & Mason, B.D.
Evs2016b AJ 151, 108, 2016 (most measures also in Evs2016a) 2016AJ............E
Evs2018 H - Evans, N.R., Karovska, M., Bond, H.E., Schaefer, G.H., Sahu, K.C., Mack, J., 2018ApJ...863..187E
Evs2018 +orb Nelan, E.P., Gallenne, A. & Tingle, E.D.
Evs2018 ApJ 863, 187, 2018
Evs2020 - - Evans, N.R., Pillitteri, I., Molnar, L., Szabados, L., Plachy, E., Szabo, R., 2020AJ....159..121E
Evs2020 Engle, S., Guinan, E., Wolk, S., Gunther, H.M., Neilson, H., Marengo, M., Matthews,
Evs2020 L.D., Moschou, S., Drake, J.J., Kashyap, V., Kervella, P., Tordai, T., Somogyi, P.
Evs2020 & Burki, G.
Evs2020 AJ 159, 121, 2020
Evs2020b H3 Evans, N.R., Gunther, H.M., Bond, H.E., Schaefer, G.H., Mason, B.D., Karovska, M., 2020ApJ...905...81E
Evs2020b Tingle, E., Wolk, S., Engle, S., Guinan, E., Pillitteri, I., Proffitt, C.,
Evs2020b Kervella, P. & Gallenne, A.
Evs2020b ApJ 905, 81, 2020
Ism1992 Ig u Ismailov, R.M. 1992A&AS...96..375I
Ism1992 A&AS 96, 375, 1992
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20434+3535 EVS 44 AD 2011 1 298 14.8 6.39 16.33 F7Ib NU 204324.20+353516.1

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

 
 
WDS 20434+3535 EVS 44 AD : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20434+3535 EVS 44 AD : MEASURES
 
 
No records found.

 
 
WDS 20434+3535 : VIRTUAL EYEPIECE
 
 

20434+3535 ISM 5A mag 6.48 Sp F7Ib 20434+3535 ISM 5B 20434+3535 EVS 44C sep 10.5 P.A. 97.60 mag 18.61 20434+3535 EVS 44D sep 12.7 P.A. 303.50 mag 16.33 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 20434+3535 : ALADIN DSS IMAGE @ 20h 43m 24.20s +35° 35' 16.1"
 
 
 
 
WDS 20434+3535 EVS 44 AD : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20434+3535 ISM 5AB distance=1' 20434+3535 EVS 44AC distance=1' 20434+3535 EVS 44AD distance=1' 20448+3542 SEI1234 distance=19' 20430+3555 HJ 1568 distance=21' 20449+3524 SEI1235 distance=22' 20451+3529 COU1809 distance=22' 20452+3531 SEI1237 distance=24' 20418+3553 HJ 1560AB distance=27' 20418+3553 HJ 1560AC distance=27' 20423+3601 TDT2481 distance=30' 20456+3521 TDT2520 distance=30' 20414+3515 COU1964 distance=31' 20450+3600 ALI 204 distance=32' 20422+3510 POP 9 distance=32' 20435+3609 ES 2195AB distance=34' 20435+3609 ES 2195BC distance=34' 20411+3516 COU1963AB distance=35' 20411+3516 COU1963AB,C distance=35' 20462+3533 ES 2252AB distance=35' 20462+3533 LMP 18AB,C distance=35' 20462+3533 LMP 18AB,D distance=35' 20462+3546 SEI1243AB distance=37' 20462+3546 TDT2529Aa,Ab distance=37' 20460+3554 TDT2525 distance=38' 20460+3601 SEI1242 distance=41' 20465+3550 ES 2196 distance=42' 20424+3455 COU1965 distance=42' 20444+3617 GII 53 distance=44' 20406+3603 SEI1213 distance=44' 20464+3511 COU1810 distance=44' 20401+3551 SEI1211 distance=45' 20403+3508 TDT2460 distance=47' 20471+3545 SEI1247 distance=47' 20394+3541 TOB 194 distance=50' 20465+3504 GRV 379 distance=50' 20417+3622 SEI1217 distance=52' 20391+3543 SEI1205 distance=54' 20389+3546 TDT2450 distance=56' 20466+3451 SEI1245 distance=59' 20466+3452 SEI1246 distance=59' 20481+3554 SEI1252 distance=61' 20423+3637 SEI1224 distance=63' 20462+3628 TDT2528 distance=63' 20415+3635 SEI1216 distance=64' 20485+3550 SEI1254 distance=65' 20386+3509 POP 8 distance=65' 20416+3637 SEI1218 distance=66' 20429+3430 SEI1225 distance=67' 20479+3456 TDT2545 distance=68' 20380+3523 TDT2437 distance=68' 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 20434+3535 ISM 5 AB 145 0.0 1
Show 20434+3535 EVS 44 AC 96 12.9 1
Show 20434+3535 EVS 44 AD 298 14.8 1
Show 20448+3542 SEI1234 127 19.1 19
Show 20430+3555 HJ 1568 44 11.2 21
Show 20449+3524 SEI1235 77 9.4 22
Show 20451+3529 COU1809 101 0.7 22
Show 20452+3531 SEI1237 272 26.1 24
Show 20418+3553 HJ 1560 AB 248 12.8 27
Show 20418+3553 HJ 1560 AC 74 24.3 27
Show 20423+3601 TDT2481 43 0.7 30
Show 20456+3521 TDT2520 16 0.4 30
Show 20414+3515 COU1964 130 1.0 31
Show 20450+3600 ALI 204 307 11.5 32
Show 20422+3510 POP 9 342 4.5 32
Show 20435+3609 ES 2195 AB 4 20.7 34
Show 20435+3609 ES 2195 BC 91 1.8 34
Show 20411+3516 COU1963 AB 0.2 35
Show 20411+3516 COU1963 AB,C 41 1.8 35
Show 20462+3533 ES 2252 AB 294 4.2 35
Show 20462+3533 LMP 18 AB,C 82 26.0 35
Show 20462+3533 LMP 18 AB,D 85 35.5 35
Show 20462+3546 SEI1243 AB 203 16.2 37
Show 20462+3546 TDT2529 Aa,Ab 218 0.6 37
Show 20460+3554 TDT2525 70 0.6 38
Show 20460+3601 SEI1242 214 23.6 41
Show 20465+3550 ES 2196 70 5.6 42
Show 20424+3455 COU1965 278 0.4 42
Show 20444+3617 GII 53 358 0.3 44
Show 20406+3603 SEI1213 243 29.3 44
Show 20464+3511 COU1810 183 0.2 44
Show 20401+3551 SEI1211 149 20.4 45
Show 20403+3508 TDT2460 121 2.1 47
Show 20471+3545 SEI1247 78 25.6 47
Show 20394+3541 TOB 194 306 18.8 50
Show 20465+3504 GRV 379 162 57.1 50
Show 20417+3622 SEI1217 245 15.1 52
Show 20391+3543 SEI1205 74 20.4 54
Show 20389+3546 TDT2450 250 1.9 56
Show 20466+3451 SEI1245 5 23.1 59
Show 20466+3452 SEI1246 58 18.9 59
Show 20481+3554 SEI1252 115 17.3 61
Show 20423+3637 SEI1224 161 25.2 63
Show 20462+3628 TDT2528 4 1.9 63
Show 20415+3635 SEI1216 117 11.8 64
Show 20485+3550 SEI1254 20 22.3 65
Show 20386+3509 POP 8 195 3.7 65
Show 20416+3637 SEI1218 226 12.8 66
Show 20429+3430 SEI1225 275 17.0 67
Show 20479+3456 TDT2545 195 2.5 68
Show 20380+3523 TDT2437 73 0.4 68

 
 
WDS 20434+3535 : COMPONENTS
 
 
  A B C
B pa=150.6°
sep=0.05"
 
C pa=97.6°
sep=10.52"
pa=97.4°
sep=10.49"
 
D pa=303.5°
sep=12.71"
pa=303.6°
sep=12.75"
pa=291.8°
sep=22.65"
 
 
20434+3535 A
 
 
Coord arcsec 2000 204324.20+353516.1 Mag 6.48 Spectral class F7Ib (yellow-white) PmRA 0.00
PmDE -6.0 SAO 70423 HIP 102276 Tycho2 2695-04136-1
HD 197572 HR 7932 GC 28886 BD BD+35 4234
Tycho2
Tycho2 2695-04136-1 Pflag RAmdeg 310.85080592 DEmdeg 35.58780661
PmRA -5.6 PmDE -1.6 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.56 EpDEm 1991.64
Num 15 Q RAmdeg 1.5 Q DEmdeg 0.8 Q pmRA 1.6
Q pmDE 0.8 BTmag 7.829 E BTmag 0.015 VTmag 6.521
E VTmag 0.010 Prox 999 TYC T HIP 102276
CCDM RAdeg 310.85082139 DEdeg 35.58781028 EpRA 1990 1.76
EpDE 1990 1.81 E RAdeg 4.0 E DEdeg 3.7 Posflg
Corr 0.1
SAO
SAO 70423 DelFlag RA1950 PmRA1950 -0.001
DE1950 PmDE1950 -0.001 Vmag 5.7 SpType G0p
Double code Source 70 CatNum 28886 DM BD+35 4234
DMcomp BDsup HD 197572 M HD 0
GC 28886 RA1950rad 5.41681824 DE1950rad 0.61796263 PmRA2000 -0.0008
PmDE2000 -0.003
Hipparcos
Catalog H HIP 102276 Proxy RAhms 20 43 24.20
DEdms +35 35 16.1 Vmag 6.48 VarFlag 3 R Vmag T
RAdeg 310.851 DEdeg 35.5878 AstroRef * Plx 1.47
CCDM N CCDM Nsys Ncomp 1
MultFlag V Source Qual M HIP
Theta Rho HD 197572 BD BD+35 4234
CD CP Dm number +35 4234 VIred 1.03
SpType G8Ib R SpType Coord arcsec 2000 204324.20+353516.1
Hipparcos 2
HIP 102276 Sn 5 So 5 Nc 1
RArad 5.4253703008 DErad 0.621124448 Plx 0.65 PmRA -6.79
PmDE -3.37 E RArad 0.39 E DErad 0.41 E Plx 0.53
E pmRA 0.41 E pmDE 0.47 Hpmag 6.5371 E Hpmag 0.0585
SHp 0.429 VA 1 BV 1.251 E BV 0.068
VI 1.21
 
 
20434+3535 B
 
 
Coord arcsec 2000 204324.20+353516.1 Calc delta mag 6.48 Calc coord yes
 
 
20434+3535 C
 
 
Coord arcsec 2000 204325.05+353514.7 Mag 18.61 Calc delta mag 12.13 Calc coord yes
 
 
20434+3535 D
 
 
Coord arcsec 2000 204323.33+353523.1 Mag 16.33 Calc delta mag 9.85 Calc coord yes