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Current system
21020+2815
LDS 2936


Nearby doubles
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BU 445AB

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OSO 139AB



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

21020+2815 LDS 2936

 
 
21h 01m 57.42s +28° 14' 48.9" P.A. 237.00 sep 4.4 mag 17.90,19.50
 
 
Coord 2000 21020+2815 Discov num LDS2936 Comp Coord arcsec 2000 21 01 57.42 +28 14 48.9
Date first 1953 Date last 2016 Obs 5
Pa first 231 Pa last 237.1 P.A. Now (θ) 237.1°
Sep first 5.0 Sep last 4.438 Sep. Now (ρ) 4.438"
Mag pri 17.90 Mag sec 19.50 delta mag (ΔM) 1.6 Spectral class
Pri motion ra +066 Sec motion ra
Pri motion dec -010 Sec motion dec
Notes W
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vulpecula Gaia DR2 1846073224108950144
 
 
WDS 21020+2815 LDS 2936 : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
LDS Luyten p.m. catalog (from additional DD list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
21020+2815 LDS2936 1998 2 237 4.4 17.90 19.50 D 210157.42+281448.9
21020+2815 LDS2936 2015 3 237 4.4 17.90 19.50 210157.42+281448.9
21020+2815 LDS2936 2016 5 237 4.4 17.90 19.50 210157.42+281448.9

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

 
 
WDS 21020+2815 LDS 2936 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21020+2815 LDS 2936 : MEASURES
 
 
No records found.

 
 
WDS 21020+2815 : VIRTUAL EYEPIECE
 
 

21020+2815 LDS2936A mag 17.9 21020+2815 LDS2936B sep 4.4 P.A. 237.10 mag 19.5 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21020+2815 : ALADIN DSS IMAGE @ 21h 01m 57.42s +28° 14' 48.9"
 
 
 
 
WDS 21020+2815 LDS 2936 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21020+2815 LDS2936 distance=0' 21023+2819 COU 524 distance=7' 21014+2808 MLB 619 distance=11' 21017+2803 TDT2702 distance=13' 21006+2829 COU1040AB distance=24' 21024+2748 TOK 345 distance=28' 21001+2801 MLB 617 distance=29' 20599+2813 J 3122AB distance=30' 20599+2813 DAM 225AB,C distance=30' 20599+2813 DAM 225AB,D distance=30' 21001+2757 MLB 618 distance=31' 21007+2844 BRT 54AB distance=34' 21007+2844 BRT 54AC distance=34' 21045+2807 MLB 665 distance=35' 21040+2841 HJ 1609AB distance=38' 21040+2841 HJ 1609CD distance=39' 21053+2807 HDS3006 distance=46' 21054+2824 MLB 666 distance=47' 20596+2740 MLB 616 distance=48' 21035+2906 BU 445AB distance=55' 21035+2906 BU 445AC distance=55' 21035+2906 BU 445AD distance=55' 21035+2906 BU 445AE distance=55' 21035+2906 ARN 21AF distance=55' 21061+2801 COU 525 distance=57' 21045+2730 J 1180 distance=57' 21046+2902 TDT2726 distance=59' 20576+2802 HJ 1599 distance=60' 21061+2843 LDS2939 distance=62' 21029+2711 J 1223AB distance=65' 21029+2711 J 1223AC distance=65' 21055+2901 MLB 536 distance=66' 21070+2816 HJ 1611 distance=67' 21007+2920 AZC 109 distance=68' 21072+2833 COU 528 distance=72' 21031+2929 OSO 139AB distance=76' 21031+2929 OSO 139AC distance=76' 21031+2929 OSO 139AD distance=76' 21057+2912 GRV 416 distance=76' 20562+2826 GRV 397 distance=77' 20562+2816 MLB 615 distance=77' 20581+2917 HO 598 distance=81' 20559+2804 MLB 614 distance=82' 21017+2938 COU1180AB distance=84' 21017+2938 RBR 51Aa,Ab distance=84' 20590+2929 J 3119 distance=85' 20556+2845 BRT 53 distance=88' 20560+2735 HO 460AB distance=89' 20560+2735 HO 460AC distance=89' 20565+2910 MLB 485AB distance=91' 20551+2808 COU 831 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 21020+2815 LDS2936 237 4.4 0
Show 21023+2819 COU 524 258 1.3 7
Show 21014+2808 MLB 619 218 5.4 11
Show 21017+2803 TDT2702 101 0.5 13
Show 21006+2829 COU1040 AB 347 1.5 24
Show 21024+2748 TOK 345 119 80.2 28
Show 21001+2801 MLB 617 331 8.6 29
Show 20599+2813 J 3122 AB 89 1.7 30
Show 20599+2813 DAM 225 AB,C 323 10.2 30
Show 20599+2813 DAM 225 AB,D 305 9.3 30
Show 21001+2757 MLB 618 339 7.3 31
Show 21007+2844 BRT 54 AB 359 6.9 34
Show 21007+2844 BRT 54 AC 296 26.6 34
Show 21045+2807 MLB 665 326 8.4 35
Show 21040+2841 HJ 1609 AB 36 8.1 38
Show 21040+2841 HJ 1609 CD 193 6.1 39
Show 21053+2807 HDS3006 12 0.7 46
Show 21054+2824 MLB 666 352 1.4 47
Show 20596+2740 MLB 616 233 4.1 48
Show 21035+2906 BU 445 AB 109 4.7 55
Show 21035+2906 BU 445 AC 19 50.7 55
Show 21035+2906 BU 445 AD 317 87.3 55
Show 21035+2906 BU 445 AE 218 103.5 55
Show 21035+2906 ARN 21 AF 233 219.9 55
Show 21061+2801 COU 525 168 1.1 57
Show 21045+2730 J 1180 276 4.0 57
Show 21046+2902 TDT2726 311 0.6 59
Show 20576+2802 HJ 1599 225 13.5 60
Show 21061+2843 LDS2939 320 5.9 62
Show 21029+2711 J 1223 AB 296 4.8 65
Show 21029+2711 J 1223 AC 134 22.1 65
Show 21055+2901 MLB 536 236 5.4 66
Show 21070+2816 HJ 1611 279 10.7 67
Show 21007+2920 AZC 109 324 34.8 68
Show 21072+2833 COU 528 70 1.2 72
Show 21031+2929 OSO 139 AB 82 15.8 76
Show 21031+2929 OSO 139 AC 308 18.8 76
Show 21031+2929 OSO 139 AD 110 26.3 76
Show 21057+2912 GRV 416 137 38.2 76
Show 20562+2826 GRV 397 339 58.2 77
Show 20562+2816 MLB 615 201 3.6 77
Show 20581+2917 HO 598 125 16.2 81
Show 20559+2804 MLB 614 75 8.7 82
Show 21017+2938 COU1180 AB 204 3.7 84
Show 21017+2938 RBR 51 Aa,Ab 181 0.6 84
Show 20590+2929 J 3119 140 8.5 85
Show 20556+2845 BRT 53 25 2.6 88
Show 20560+2735 HO 460 AB 112 13.3 89
Show 20560+2735 HO 460 AC 257 37.7 89
Show 20565+2910 MLB 485 AB 154 4.5 91
Show 20551+2808 COU 831 289 1.3 92

 
 
WDS 21020+2815 : COMPONENTS
 
 
  A
B pa=237.1°
sep=4.44"
 
 
21020+2815 A
 
 
Coord arcsec 2000 210157.42+281448.9 Mag 17.9 PmRA 66.00 PmDE -10.0
 
 
21020+2815 B
 
 
Coord arcsec 2000 210157.14+281446.5 Mag 19.5 Delta magnitude 1.6 Coordinate calculated yes