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Current system
21384+2953
MLB 491


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J 2352



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

21384+2953 MLB 491

 
 
21h 38m 29.40s +29° 54' 00.4" P.A. 34.00 sep 4.8 mag 11.00,12.00
 
 
Coord 2000 21384+2953 Discov num MLB 491 Comp Coord arcsec 2000 21 38 29.40 +29 54 00.4
Date first 1895 Date last 2015 Obs 8
Pa first 71 Pa last 34 P.A. Now (θ) 34°
Sep first 1.9 Sep last 4.78 Sep. Now (ρ) 4.78"
Mag pri 11.00 Mag sec 12.00 delta mag (ΔM) 1 Spectral class
Pri motion ra -002 Sec motion ra +017
Pri motion dec -033 Sec motion dec +009
Notes N (See Notes)
rPM=1.394
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1849617259320108672
 
 
WDS 21384+2953 MLB 491 : NOTES
 
 
discov_num notes refcode
MLB 491 BRT 289. Brt1929b
 
 
REFERENCES
 
 
refcode metd author reference
Brt1929b Pa - Barton, S.G. 1929AJ.....39...93B
Brt1929b AJ 39, 93, 1929 (BRT 231 - BRT 293)
 
 
DISCOVERER
 
 
idgroup discov author
1 MLB Milburn, W. (Espin, T.E.)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21384+2953 MLB 491 2002 4 36 4.5 11.00 12.00 D 213829.40+295400.4
21384+2953 MLB 491 2015 6 34 4.8 11.00 12.00 N 213829.40+295400.4

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

 
 
WDS 21384+2953 MLB 491 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21384+2953 MLB 491 : MEASURES
 
 
No records found.

 
 
WDS 21384+2953 : VIRTUAL EYEPIECE
 
 

21384+2953 MLB 491A mag 11 21384+2953 MLB 491B sep 4.6 P.A. 30.30 mag 12 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21384+2953 : ALADIN DSS IMAGE @ 21h 38m 29.40s +29° 54' 00.4"
 
 
 
 
WDS 21384+2953 MLB 491 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21384+2953 MLB 491 distance=0' 21383+2958 HJ 1670 distance=6' 21395+3009 A 772 distance=21' 21401+2928 BRT 57 distance=31' 21362+3003 BU 167 distance=31' 21364+3015 MLB 719 distance=35' 21412+2955 GRV 491 distance=36' 21355+3012 UC 4502 distance=43' 21420+2951 MLB 720 distance=46' 21363+2917 BRT 56 distance=47' 21410+2920 STT 448 distance=47' 21384+3044 LDS4900 distance=50' 21353+3020 MLB 718 distance=50' 21422+3008 MLB 575AC distance=51' 21422+3008 MLB 575BC distance=51' 21356+2918 GRV 481 distance=52' 21348+3016 ES 380CD distance=52' 21348+3016 ES 380AB distance=53' 21348+3016 ES 380AC distance=53' 21420+2924 MLB 539 distance=56' 21430+2951 KPP 498 distance=59' 21416+2911 GRV 493 distance=60' 21429+3014 TDT3119 distance=62' 21412+3043 J 3143 distance=62' 21353+3043 TDT3047 distance=64' 21389+3058 TDT3081 distance=65' 21418+2901 MLB 492 distance=69' 21407+3056 GRV 490 distance=70' 21331+2958 J 3141AB distance=71' 21331+2958 LOS 5AC distance=71' 21331+2958 LOS 5BC distance=71' 21332+3015 ES 379 distance=72' 21346+2856 J 2352 distance=75' 21442+2942 MLB 493 distance=76' 21358+3101 HJ 939AB distance=76' 21358+3101 STF2808AC distance=76' 21327+2954 HEI 190 distance=76' 21358+3101 HJ 939CD distance=76' 21358+3104 HJ 940 distance=79' 21327+2930 ES 517 distance=79' 21422+3100 OSO 154AB distance=82' 21422+3100 OSO 154AC distance=82' 21422+3100 OSO 154AD distance=82' 21422+3100 OSO 154AE distance=82' 21390+2826 ES 520 distance=88' 21455+2948 DAM 237 distance=91' 21451+3026 TDT3136 distance=92' 21318+3026 TDT3010 distance=92' 21334+3058 COU 732Aa,Ab distance=93' 21334+3058 KU 132AB distance=93' 21457+2957 TDT3145 distance=94' 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 21384+2953 MLB 491 34 4.8
Show 21383+2958 HJ 1670 78 11.7 6
Show 21395+3009 A 772 112 0.1 21
Show 21401+2928 BRT 57 137 5.0 31
Show 21362+3003 BU 167 89 1.7 31
Show 21364+3015 MLB 719 136 6.0 35
Show 21412+2955 GRV 491 21 31.4 36
Show 21355+3012 UC 4502 264 46.1 43
Show 21420+2951 MLB 720 140 7.2 46
Show 21363+2917 BRT 56 306 3.2 47
Show 21410+2920 STT 448 31 0.1 47
Show 21384+3044 LDS4900 213 17.4 50
Show 21353+3020 MLB 718 307 8.1 50
Show 21422+3008 MLB 575 AC 133 17.4 51
Show 21422+3008 MLB 575 BC 108 2.7 51
Show 21356+2918 GRV 481 184 64.0 52
Show 21348+3016 ES 380 CD 312 2.9 52
Show 21348+3016 ES 380 AB 49 16.2 53
Show 21348+3016 ES 380 AC 106 61.5 53
Show 21420+2924 MLB 539 171 4.8 56
Show 21430+2951 KPP 498 58 3.9 59
Show 21416+2911 GRV 493 184 44.7 60
Show 21429+3014 TDT3119 157 2.7 62
Show 21412+3043 J 3143 262 6.6 62
Show 21353+3043 TDT3047 19 2.4 64
Show 21389+3058 TDT3081 114 0.8 65
Show 21418+2901 MLB 492 114 7.0 69
Show 21407+3056 GRV 490 328 31.7 70
Show 21331+2958 J 3141 AB 313 6.8 71
Show 21331+2958 LOS 5 AC 350 6.1 71
Show 21331+2958 LOS 5 BC 70 4.1 71
Show 21332+3015 ES 379 300 9.0 72
Show 21346+2856 J 2352 247 6.4 75
Show 21442+2942 MLB 493 330 8.6 76
Show 21358+3101 HJ 939 AB 176 15.6 76
Show 21358+3101 STF2808 AC 286 42.8 76
Show 21327+2954 HEI 190 81 1.8 76
Show 21358+3101 HJ 939 CD 344 15.1 76
Show 21358+3104 HJ 940 329 21.0 79
Show 21327+2930 ES 517 240 2.5 79
Show 21422+3100 OSO 154 AB 25 15.3 82
Show 21422+3100 OSO 154 AC 239 15.8 82
Show 21422+3100 OSO 154 AD 166 16.4 82
Show 21422+3100 OSO 154 AE 108 19.6 82
Show 21390+2826 ES 520 36 9.3 88
Show 21455+2948 DAM 237 233 6.3 91
Show 21451+3026 TDT3136 0.8 92
Show 21318+3026 TDT3010 331 0.6 92
Show 21334+3058 COU 732 Aa,Ab 265 0.5 93
Show 21334+3058 KU 132 AB 256 53.6 93
Show 21457+2957 TDT3145 250 2.2 94

 
 
WDS 21384+2953 : COMPONENTS
 
 
  A
B pa=30.3°
sep=4.59"
 
 
21384+2953 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 213829.40+295400.4 Mag 11 PmRA -2.00
PmDE -33.0
 
 
21384+2953 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 213829.58+295404.4 Mag 12 PmRA 17.00
PmDE 9.0 Calc delta mag 1 Calc coord yes