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Doubles in session


Current system
18420+3505
SEI 570


Nearby doubles
4' : 18416+3503
GRV 237

11' : 18426+3459
UC 3650

20' : 18421+3445
STF2372AB

24' : 18430+3445
SEI 572AB

34' : 18434+3533
STF2378AB

34' : 18425+3432
POP 45

35' : 18393+3517
HJ 1335

37' : 18390+3501
POP 17

37' : 18416+3541
KPP4116

40' : 18438+3433
SEI 573

43' : 18385+3503
COU1308

45' : 18403+3425
HDS2645AB

46' : 18394+3430
SEI 568

50' : 18452+3532
STF2386AB

50' : 18379+3506
TRA 1

50' : 18379+3505
POP 16AB

56' : 18464+3500
SLE 367

59' : 18458+3431
STF2390

63' : 18370+3452
STF2352AB

66' : 18366+3505
COU1307

68' : 18380+3417
LDS4793

68' : 18380+3416
CRB 128

73' : 18445+3400
STTA172

73' : 18423+3616
A 1381

73' : 18384+3603
STF2362

74' : 18360+3452
TDT 953



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18420+3505 SEI 570

 
 
18h 41m 55.31s +35° 04' 19.5" P.A. 131.00 sep 9.4 mag 10.50,11.00
 
 
Coord 2000 18420+3505 Discov num SEI 570 Comp Coord arcsec 2000 18 41 55.31 +35 04 19.5
Date first 1894 Date last 2020 Obs 16
Pa first 124 Pa last 130.8 P.A. Now (θ) 130.8°
Sep first 8.3 Sep last 9.384 Sep. Now (ρ) 9.384"
Mag pri 10.50 Mag sec 11.00 delta mag (ΔM) 0.5 Spectral class
Pri motion ra -012 Sec motion ra -002
Pri motion dec -005 Sec motion dec -010
Notes
rPM=0.86
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra Gaia DR2 2094882053949531904
 
 
WDS 18420+3505 SEI 570 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Sei1908 Pa - Scheiner, J. 1908POPot..59.....S
Sei1908 +Po Pub. Obs. Potsdam 20, #59, 1908
Sei1913A Pa - Scheiner, J. 1913QB811.B8.......
Sei1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A Pa - Scheiner, J. 1932QB821.A43......
Sei1932A cited in ADS (Aitken Double Star Cat.), 1932
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18420+3505 SEI 570 2006 8 131 9.3 10.50 11.00 D 184155.31+350419.5
18420+3505 SEI 570 2013 10 131 9.2 10.50 11.00 184155.31+350419.5
18420+3505 SEI 570 2015 11 131 9.4 10.50 11.00 184155.31+350419.5
18420+3505 SEI 570 2020 16 131 9.4 10.50 11.00 184155.31+350419.5

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

 
 
WDS 18420+3505 SEI 570 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18420+3505 SEI 570 : MEASURES
 
 
No records found.

 
 
WDS 18420+3505 : VIRTUAL EYEPIECE
 
 

18420+3505 SEI 570A mag 10.5 18420+3505 SEI 570B sep 8.4 P.A. 136.50 mag 11 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18420+3505 : ALADIN DSS IMAGE @ 18h 41m 55.31s +35° 04' 19.5"
 
 
 
 
WDS 18420+3505 SEI 570 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18420+3505 SEI 570 distance=0' 18416+3503 GRV 237 distance=4' 18426+3459 UC 3650 distance=11' 18421+3445 B 2546Aa,Ab distance=20' 18421+3445 STF2372AB distance=20' 18421+3445 BLL 34AC distance=20' 18421+3445 BLL 34BC distance=20' 18430+3445 BKO 52BD distance=24' 18430+3445 SEI 572AB distance=24' 18430+3445 BKO 52AC distance=24' 18434+3533 STF2378BC distance=34' 18434+3533 STF2378AB distance=34' 18434+3533 SLE 688AD distance=34' 18434+3533 STF2378AC distance=34' 18434+3533 FYM 48AE distance=34' 18434+3533 FYM 48AF distance=34' 18425+3432 POP 45 distance=34' 18393+3517 HJ 1335 distance=35' 18390+3501 POP 17 distance=37' 18416+3541 KPP4116 distance=37' 18438+3433 SEI 573 distance=40' 18385+3503 COU1308 distance=43' 18403+3425 HDS2645AB distance=45' 18403+3425 GII 270Aa,Ab distance=45' 18394+3430 SEI 568 distance=46' 18452+3532 STF2386AB distance=50' 18452+3532 FOX 234AC distance=50' 18379+3506 TRA 1 distance=50' 18379+3505 POP 16AB distance=50' 18379+3505 POP 16AC distance=50' 18379+3505 DAM 688AD distance=50' 18464+3500 SLE 367 distance=56' 18458+3431 STF2390 distance=59' 18370+3452 STF2352AB distance=63' 18370+3452 STF2352AC distance=63' 18370+3452 WAL 93AD distance=63' 18366+3505 COU1307 distance=66' 18380+3417 LDS4793 distance=68' 18380+3416 CRB 128 distance=68' 18445+3400 STTA172 distance=73' 18423+3616 A 1381 distance=73' 18384+3603 STF2362 distance=73' 18360+3452 TDT 953 distance=74' 18465+3414 COU1153 distance=76' 18357+3452 GII 48 distance=78' 18412+3627 TDT 993 distance=83' 18419+3629 SLE 364 distance=85' 18475+3415 KPP4122 distance=85' 18483+3432 POP 43 distance=87' 18477+3600 ALI 142 distance=90' 18352+3427 CHR 75 distance=91' 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 18420+3505 SEI 570 131 9.4
Show 18416+3503 GRV 237 176 57.8 4
Show 18426+3459 UC 3650 159 22.3 11
Show 18421+3445 B 2546 Aa,Ab 24 0.1 20
Show 18421+3445 STF2372 AB 82 25.0 20
Show 18421+3445 BLL 34 AC 69 114.0 20
Show 18421+3445 BLL 34 BC 65 91.1 20
Show 18430+3445 BKO 52 BD 82 7.5 24
Show 18430+3445 SEI 572 AB 53 22.3 24
Show 18430+3445 BKO 52 AC 147 18.7 24
Show 18434+3533 STF2378 BC 246 203.5 34
Show 18434+3533 STF2378 AB 190 11.5 34
Show 18434+3533 SLE 688 AD 16 109.8 34
Show 18434+3533 STF2378 AC 243 210.2 34
Show 18434+3533 FYM 48 AE 270 110.9 34
Show 18434+3533 FYM 48 AF 134 66.7 34
Show 18425+3432 POP 45 275 6.8 34
Show 18393+3517 HJ 1335 7 16.7 35
Show 18390+3501 POP 17 16 8.7 37
Show 18416+3541 KPP4116 252 1.7 37
Show 18438+3433 SEI 573 298 20.9 40
Show 18385+3503 COU1308 29 0.4 43
Show 18403+3425 HDS2645 AB 19 1.9 45
Show 18403+3425 GII 270 Aa,Ab 109 0.2 45
Show 18394+3430 SEI 568 192 10.5 46
Show 18452+3532 STF2386 AB 18 21.1 50
Show 18452+3532 FOX 234 AC 75 56.7 50
Show 18379+3506 TRA 1 164 9.4 50
Show 18379+3505 POP 16 AB 310 9.2 50
Show 18379+3505 POP 16 AC 279 53.0 50
Show 18379+3505 DAM 688 AD 108 5.4 50
Show 18464+3500 SLE 367 290 18.5 56
Show 18458+3431 STF2390 155 4.3 59
Show 18370+3452 STF2352 AB 287 15.9 63
Show 18370+3452 STF2352 AC 161 210.3 63
Show 18370+3452 WAL 93 AD 204 37.9 63
Show 18366+3505 COU1307 327 1.2 66
Show 18380+3417 LDS4793 182 54.2 68
Show 18380+3416 CRB 128 148 11.7 68
Show 18445+3400 STTA172 5 64.9 73
Show 18423+3616 A 1381 93 0.4 73
Show 18384+3603 STF2362 187 4.4 73
Show 18360+3452 TDT 953 136 0.4 74
Show 18465+3414 COU1153 116 0.4 76
Show 18357+3452 GII 48 313 0.3 78
Show 18412+3627 TDT 993 164 0.4 83
Show 18419+3629 SLE 364 170 22.1 85
Show 18475+3415 KPP4122 53 4.1 85
Show 18483+3432 POP 43 297 2.6 87
Show 18477+3600 ALI 142 126 12.7 90
Show 18352+3427 CHR 75 267 0.2 91

 
 
WDS 18420+3505 : COMPONENTS
 
 
  A
B pa=136.5°
sep=8.45"
 
 
18420+3505 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 184155.31+350419.5 Mag 10.5 PmRA -12.00
PmDE -5.0
 
 
18420+3505 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 184155.78+350413.4 Mag 11 PmRA -2.00
PmDE -10.0 Calc delta mag 0.5 Calc coord yes