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Current system
20284+3007
OL 75


Nearby doubles
6' : 20280+3008
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HDS2921

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ES 363

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FMR 87AB

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MLB 571

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TDT2356

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TDT2237

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TDT2283

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TDT2349

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HO 457AB



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

20284+3007 OL 75

 
 
20h 28m 24.33s +30° 07' 27.2" P.A. 136.00 sep 1.8 mag 11.50,12.08
 
 
Coord 2000 20284+3007 Discov num OL   75 Comp Coord arcsec 2000 20 28 24.33 +30 07 27.2
Date first 1919 Date last 2015 Obs 3
Pa first 135 Pa last 136.2 P.A. Now (θ) 136.2°
Sep first 1.4 Sep last 1.805 Sep. Now (ρ) 1.805"
Mag pri 11.50 Mag sec 12.08 delta mag (ΔM) 0.58 Spectral class
Pri motion ra -006 Sec motion ra -006
Pri motion dec -002 Sec motion dec -002
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1860918692674391424
 
 
WDS 20284+3007 OL 75 : NOTES
 
 
discov_num notes refcode
OL 75 Aka TDT2310.
 
 
DISCOVERER
 
 
discov author
OL Olivier, C.P.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
20284+3007 OL 75 1991 2 136 1.8 11.50 12.08 N 202824.33+300727.2
20284+3007 OL 75 2015 3 136 1.8 11.50 12.08 N 202824.33+300727.2

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

 
 
WDS 20284+3007 OL 75 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20284+3007 OL 75 : MEASURES
 
 
No records found.

 
 
WDS 20284+3007 : VIRTUAL EYEPIECE
 
 

20284+3007 OL 75A mag 11.5 20284+3007 OL 75B sep 1.8 P.A. 136.20 mag 12.08 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 20284+3007 : ALADIN DSS IMAGE @ 20h 28m 24.33s +30° 07' 27.2"
 
 
 
 
WDS 20284+3007 OL 75 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20284+3007 OL 75 distance=0' 20280+3008 BU 62AB distance=6' 20280+3008 BU 62AC distance=6' 20280+3008 BU 62AD distance=6' 20291+2956 AG 406 distance=15' 20282+3024 HJ 1517 distance=17' 20300+3029 STJ 59 distance=31' 20306+3029 ES 505 distance=37' 20257+3022 COU1324 distance=39' 20279+3047 RAO 520 distance=41' 20317+3005 ARY 46AB distance=44' 20317+3005 ARY 46AC distance=44' 20294+3048 HJ 1521 distance=44' 20287+2924 MLB 532 distance=45' 20319+3024 BRT 280 distance=48' 20250+3034 HDS2921 distance=52' 20248+3033 ES 363 distance=54' 20242+2958 HDS2916Aa,Ab distance=56' 20242+2958 FMR 87AB distance=56' 20242+2958 FMR 87AC distance=56' 20316+2929 MLB 571 distance=58' 20328+3007 TDT2356 distance=58' 20332+3008 BRT 281 distance=64' 20325+2934 TDT2347 distance=64' 20234+3007 J 1772 distance=65' 20328+2936 TDT2357 distance=66' 20261+2910 MLB 479 distance=66' 20282+2901 TDT2308Aa,Ab distance=67' 20282+2901 ES 504AB distance=67' 20240+2935 TDT2237 distance=67' 20270+2902 TDT2283 distance=69' 20326+3049 TDT2349 distance=69' 20244+2923 HO 457AB distance=70' 20244+2923 HO 457AC distance=70' 20320+2915 GRV 349 distance=71' 20286+3118 COU1325 distance=71' 20266+2858 TDT2275 distance=74' 20265+3117 TDT2272 distance=74' 20231+3036 ES 362AB distance=75' 20231+3036 ES 362BC distance=75' 20290+2852 TDT2317 distance=76' 20282+3124 ES 2435 distance=76' 20329+3056 COU1326 distance=76' 20269+3121 TDT2280 distance=77' 20340+2942 TDS1084 distance=77' 20332+3052 TDT2366 distance=77' 20225+3004 TDT2216 distance=78' 20344+3004 TDT2384 distance=78' 20234+3053 ARG 91 distance=79' 20346+3009 TDT2387 distance=81' 20280+3128 TDS1074 distance=81' 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 20284+3007 OL 75 136 1.8 0
Show 20280+3008 BU 62 AB 133 1.2 6
Show 20280+3008 BU 62 AC 179 38.2 6
Show 20280+3008 BU 62 AD 267 46.1 6
Show 20291+2956 AG 406 333 8.5 15
Show 20282+3024 HJ 1517 105 13.1 17
Show 20300+3029 STJ 59 219 1.4 31
Show 20306+3029 ES 505 15 2.1 37
Show 20257+3022 COU1324 202 3.0 39
Show 20279+3047 RAO 520 -1 0.2 41
Show 20317+3005 ARY 46 AB 5 91.1 44
Show 20317+3005 ARY 46 AC 92 146.6 44
Show 20294+3048 HJ 1521 194 15.4 44
Show 20287+2924 MLB 532 351 8.9 45
Show 20319+3024 BRT 280 48 4.8 48
Show 20250+3034 HDS2921 358 0.8 52
Show 20248+3033 ES 363 277 3.1 54
Show 20242+2958 HDS2916 Aa,Ab 223 0.2 56
Show 20242+2958 FMR 87 AB 50 1.4 56
Show 20242+2958 FMR 87 AC 117 7.8 56
Show 20316+2929 MLB 571 261 3.4 58
Show 20328+3007 TDT2356 328 0.4 58
Show 20332+3008 BRT 281 154 6.4 64
Show 20325+2934 TDT2347 309 0.4 64
Show 20234+3007 J 1772 98 2.4 65
Show 20328+2936 TDT2357 29 0.5 66
Show 20261+2910 MLB 479 141 6.4 66
Show 20282+2901 TDT2308 Aa,Ab 343 0.6 67
Show 20282+2901 ES 504 AB 87 5.9 67
Show 20240+2935 TDT2237 155 0.9 67
Show 20270+2902 TDT2283 355 0.4 69
Show 20326+3049 TDT2349 60 0.6 69
Show 20244+2923 HO 457 AB 61 2.0 70
Show 20244+2923 HO 457 AC 268 28.0 70
Show 20320+2915 GRV 349 42 33.2 71
Show 20286+3118 COU1325 229 0.3 71
Show 20266+2858 TDT2275 87 0.4 74
Show 20265+3117 TDT2272 159 2.8 74
Show 20231+3036 ES 362 AB 232 10.8 75
Show 20231+3036 ES 362 BC 270 5.1 75
Show 20290+2852 TDT2317 323 0.5 76
Show 20282+3124 ES 2435 241 3.4 76
Show 20329+3056 COU1326 263 0.4 76
Show 20269+3121 TDT2280 334 0.5 77
Show 20340+2942 TDS1084 173 4.4 77
Show 20332+3052 TDT2366 146 0.7 77
Show 20225+3004 TDT2216 133 0.5 78
Show 20344+3004 TDT2384 142 0.5 78
Show 20234+3053 ARG 91 175 20.8 79
Show 20346+3009 TDT2387 216 0.5 81
Show 20280+3128 TDS1074 334 1.5 81

 
 
WDS 20284+3007 : COMPONENTS
 
 
  A
B pa=136.2°
sep=1.81"
 
 
20284+3007 A
 
 
Coord arcsec 2000 202824.33+300727.2 Mag 11.5 PmRA -6.00 PmDE -2.0
 
 
20284+3007 B
 
 
Coord arcsec 2000 202824.43+300725.9 Mag 12.08 PmRA -6.00 PmDE -2.0
Delta magnitude 0.58 Coordinate calculated yes