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Current system
21305+3701
GII 102 Aa,Ab


Nearby doubles
13' : 21311+3652
HJ 1653

25' : 21294+3640
CRB 16

29' : 21295+3728
SEI1519

31' : 21295+3635
ES 2128AB

33' : 21317+3730
GRV 474

34' : 21283+3640
CRB 142

35' : 21285+3636
ALI 443

35' : 21278+3715
SEI1518

38' : 21296+3625
ES 258AB

40' : 21331+3726
SEI1525

48' : 21337+3728
SEI1526

50' : 21264+3712
SEI1514

50' : 21284+3745
TDT2983

53' : 21268+3731
SEI1516AB

53' : 21271+3627
SEI1517

56' : 21345+3635
TDT3037

57' : 21287+3755
KPP1064

60' : 21258+3640
S 790AB

63' : 21272+3752
ES 2520

64' : 21252+3708
SEI1513

67' : 21249+3711
TDS1126

72' : 21252+3629
CBL 93

72' : 21323+3811
ES 2063

72' : 21340+3605
TDT3034

73' : 21300+3549
TDT2998

76' : 21247+3631
ES 2126AB



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.

21305+3701 GII 102 Aa,Ab

 
 
21h 30m 26.38s +37° 01' 45.1" P.A. 306.00 sep 0.4 mag 10.10,12.20
 
 
Coord 2000 21305+3701 Discov num GII 102 Comp Aa,Ab Coord arcsec 2000 21 30 26.38 +37 01 45.1
Date first 2015 Date last 2015 Obs 1
Pa first 306 Pa last 305.5 P.A. Now (θ) 305.5°
Sep first 0.4 Sep last 0.415 Sep. Now (ρ) 0.415"
Mag pri 10.10 Mag sec 12.20 delta mag (ΔM) 2.1 Spectral class
Pri motion ra +006 Sec motion ra
Pri motion dec +006 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
21305+3701 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 30 26 +37 01 45 GII 102 Aa,Ab 2015 1 306 0.4 10.10 12.20 2.10 <===
Show 21 30 26 +37 01 45 SEI 1521 AB 2015 8 225 2.9 10.00 10.20 0.20
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1952061746980317056
 
 
WDS 21305+3701 GII 102 Aa,Ab : NOTES
 
 
discov_num notes refcode
SEI1521 J 1155.
 
 
REFERENCES
 
 
refcode metd author reference
Gii1991 Ma j Gili, R. 1991AN....312...41G
Gii1991 AN 312, 41, 1991
Gii1994 M+ j Gili, R. (Couteau & Gili) 1994A&AS..106..377G
Gii1994 +C A&AS 106, 377, 1994
Gii1997 M+ j Gili, R. & Couteau, P. 1997A&AS..126....1G
Gii1997 +C A&AS 126, 1, 1997
Gii2001 C j Gili, R. & Bonneau, D. 2001A&A...378..954G
Gii2001 A&A 378, 954, 2001
Gii2008 C j Gili, R. 2008IAUDS.165....1G
Gii2008 Inf. Circ. 165, 1, 2008
Gii2009 S j Gili, R. 2009IAUDS.168....1G
Gii2009 +orb Inf. Circ. 168, 1, 2009
Gii2009b C j Gili, R. & Agati, J.-L. 2009O&T....73....9G
Gii2009b +S Obs. et Travaux 73, 9, 2009
Gii2009c C j Gili, R. & Agati, J.-L. 2009O&T....74...14G
Gii2009c +S Obs. et Travaux 74, 14, 2009
Gii2012 S j Gili, R. & Prieur, J.-L. 2012AN....333..727G
Gii2012 +Cl AN 333, 727, 2012
Gii2016 S j Gili, R. 2016IAUDS.190....4G
Gii2016 +Cl Inf. Circ. 190, 4, 2016
Gii2016b Cl Gili, R.
Gii2016b private comm. (email 27 Aug 2016)
Gii2020 S Gili, R., Prieur, J.-L., Rivet, J.-P., Scardia, M., Pansecchi, L., Argyle, R.W., 2020AN....341..441G
Gii2020 +Cl Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D. & Maccarini, L.
Gii2020 AN 341, 441, 2020
Gii2021 S Gili, R., Prieur, J.-L., Rivet, J.-P., Vakili, F., Scardia, M., Pansecchi, L., 2021AN....342..865G
Gii2021 Argyle, R.W., Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D.,
Gii2021 Maccarini, L. & Serot, J.
Gii2021 AN 342, 865, 2021
Gii2022 S Gili, R., Prieur, J.-L., Rivet, J.-P., Vakili, F., Scardia, M., Pansecchi, L., 2022AN....34324008G
Gii2022 Argyle, R.W., Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D.,
Gii2022 Maccarini, L. & Serot, J.
Gii2022 AN 343, 24008, 2022
Gii2022 errata for Gii2022 (source of code "P" measures in wds) 2023AN....34437001G
Gii2022 AN 344, 37001, 2023
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
21305+3701 GII 102 Aa,Ab 2015 1 306 0.4 10.10 12.20 N 213026.38+370145.1

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

 
 
WDS 21305+3701 GII 102 Aa,Ab : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21305+3701 GII 102 Aa,Ab : MEASURES
 
 
No records found.

 
 
WDS 21305+3701 : VIRTUAL EYEPIECE
 
 

21305+3701 SEI1521A mag 10 21305+3701 GII 102Ab sep 0.4 P.A. 311.80 mag 12.2 21305+3701 SEI1521B sep 2.6 P.A. 219.00 mag 10.2 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 21305+3701 : ALADIN DSS IMAGE @ 21h 30m 26.38s +37° 01' 45.1"
 
 
 
 
WDS 21305+3701 GII 102 Aa,Ab : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21305+3701 GII 102Aa,Ab distance=0' 21311+3652 HJ 1653 distance=13' 21294+3640 CRB 16 distance=25' 21295+3728 SEI1519 distance=29' 21295+3635 ES 2128AB distance=31' 21295+3635 ES 2128AC distance=31' 21317+3730 GRV 474 distance=33' 21283+3640 CRB 142 distance=34' 21285+3636 ALI 443 distance=35' 21278+3715 SEI1518 distance=35' 21296+3625 ES 258BC distance=37' 21296+3625 ES 258AB distance=38' 21331+3726 SEI1525 distance=40' 21337+3728 SEI1526 distance=48' 21264+3712 SEI1514 distance=50' 21284+3745 TDT2983 distance=50' 21268+3731 SEI1516AB distance=53' 21268+3731 HEI9004AC distance=53' 21268+3731 HEI9004AD distance=53' 21271+3627 SEI1517 distance=53' 21268+3731 COU1821Da,Db distance=55' 21345+3635 TDT3037 distance=56' 21287+3755 KPP1064 distance=57' 21258+3640 FYM 124CD distance=60' 21258+3640 S 790AB distance=60' 21258+3640 S 790AC distance=60' 21272+3752 ES 2520 distance=63' 21252+3708 SEI1513 distance=64' 21249+3711 TDS1126 distance=67' 21252+3629 CBL 93 distance=72' 21323+3811 ES 2063 distance=72' 21340+3605 TDT3034 distance=72' 21300+3549 TDT2998 distance=73' 21247+3631 ES 2126AB distance=76' 21247+3631 WSI 23AC distance=76' 21245+3632 ES 2125AB distance=78' 21245+3632 SEI1512AC distance=78' 21238+3721 STFA 55CD distance=80' 21238+3721 STFA 55CE distance=80' 21328+3546 SEI1524 distance=81' 21238+3721 STFA 55AB distance=82' 21238+3721 STFA 55AC distance=82' 21238+3721 STFA 55AF distance=82' 21243+3740 WSI 7 distance=83' 21367+3624 HLD 46 distance=84' 21358+3755 GRV 482 distance=84' 21241+3741 SEI1458 distance=85' 21351+3807 SRW 10AB distance=86' 21351+3807 SRW 10AC distance=86' 21376+3712 ES 2065 distance=87' 21370+3628 GRV 484 distance=87' 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 21305+3701 SEI1521 AB 225 2.9
Show 21305+3701 GII 102 Aa,Ab 306 0.4
Show 21311+3652 HJ 1653 195 19.5 13
Show 21294+3640 CRB 16 56 111.6 25
Show 21295+3728 SEI1519 181 13.8 29
Show 21295+3635 ES 2128 AB 304 7.2 31
Show 21295+3635 ES 2128 AC 101 24.9 31
Show 21317+3730 GRV 474 236 24.6 33
Show 21283+3640 CRB 142 46 25.7 34
Show 21285+3636 ALI 443 298 4.3 35
Show 21278+3715 SEI1518 143 15.5 35
Show 21296+3625 ES 258 BC 10 19.7 37
Show 21296+3625 ES 258 AB 36 9.8 38
Show 21331+3726 SEI1525 100 15.0 40
Show 21337+3728 SEI1526 160 25.3 48
Show 21264+3712 SEI1514 184 12.0 50
Show 21284+3745 TDT2983 111 0.5 50
Show 21268+3731 SEI1516 AB 335 3.9 53
Show 21268+3731 HEI9004 AC 275 25.5 53
Show 21268+3731 HEI9004 AD 335 109.8 53
Show 21271+3627 SEI1517 80 16.3 53
Show 21268+3731 COU1821 Da,Db 96 0.7 55
Show 21345+3635 TDT3037 273 1.9 56
Show 21287+3755 KPP1064 246 8.5 57
Show 21258+3640 FYM 124 CD 84 19.4 60
Show 21258+3640 S 790 AB 28 34.5 60
Show 21258+3640 S 790 AC 99 53.1 60
Show 21272+3752 ES 2520 238 6.2 63
Show 21252+3708 SEI1513 90 14.5 64
Show 21249+3711 TDS1126 314 1.9 67
Show 21252+3629 CBL 93 56 12.9 72
Show 21323+3811 ES 2063 227 2.7 72
Show 21340+3605 TDT3034 125 0.6 72
Show 21300+3549 TDT2998 209 2.0 73
Show 21247+3631 ES 2126 AB 170 4.1 76
Show 21247+3631 WSI 23 AC 84 9.0 76
Show 21245+3632 ES 2125 AB 34 2.0 78
Show 21245+3632 SEI1512 AC 198 29.0 78
Show 21238+3721 STFA 55 CD 183 12.8 80
Show 21238+3721 STFA 55 CE 320 17.7 80
Show 21328+3546 SEI1524 130 24.8 81
Show 21238+3721 STFA 55 AB 304 364.1 82
Show 21238+3721 STFA 55 AC 154 178.3 82
Show 21238+3721 STFA 55 AF 201 22.8 82
Show 21243+3740 WSI 7 44 0.1 83
Show 21367+3624 HLD 46 198 1.7 84
Show 21358+3755 GRV 482 188 49.3 84
Show 21241+3741 SEI1458 312 7.9 85
Show 21351+3807 SRW 10 AB 314 19.5 86
Show 21351+3807 SRW 10 AC 11 19.6 86
Show 21376+3712 ES 2065 4 3.9 87

 
 
WDS 21305+3701 : COMPONENTS
 
 
  A Ab
Ab pa=311.8°
sep=0.36"
 
B pa=219.0°
sep=2.61"
pa=211.2°
sep=2.65"
 
 
21305+3701 A
 
 
Coord arcsec 2000 213026.38+370145.1 Mag 10 PmRA 6.00 PmDE 6.0
 
 
21305+3701 Ab
 
 
Coord arcsec 2000 213026.36+370145.3 Mag 12.2 Calc delta mag 2.1 Calc coord yes
 
 
21305+3701 B
 
 
Coord arcsec 2000 213026.24+370143.1 Mag 10.2 Calc delta mag 0.1 Calc coord yes