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Doubles in session


Current system
20520+4009
MLB 955


Nearby doubles
17' : 20526+4024
GRV 391

27' : 20514+3945
MLB 779AB

28' : 20515+3944
DAM 317AB

28' : 20498+3958
SEI1267

32' : 20531+3940
SEI1292

41' : 20495+4035
COU2426

41' : 20556+4004
TDT2634

41' : 20488+4024
ALI1192

42' : 20486+4000
TOB 198

42' : 20490+3947
STF2731AB

42' : 20545+3937
BRT2281

43' : 20544+4042
STT 420

44' : 20514+3927
TDT2581

44' : 20511+4051
TDT2578

44' : 20484+4002
SEI1255AB

45' : 20546+4042
ES 1685AB

45' : 20528+3925
SEI1290

45' : 20553+3944
SEI1315

45' : 20551+3941
MLB 886

46' : 20558+3951
LDS2469

47' : 20481+3958
CVR 231

48' : 20544+3929
BKO 469

49' : 20549+3933
BKO 471

49' : 20555+3940
MLB 783

49' : 20547+3929
GRV 395

53' : 20550+3929
SEI1311



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.

20520+4009 MLB 955

 
 
20h 52m 06.91s +40° 08' 47.4" P.A. 27.00 sep 6.6 mag 10.00,10.20
 
 
Coord 2000 20520+4009 Discov num MLB 955 Comp Coord arcsec 2000 20 52 06.91 +40 08 47.4
Date first 1934 Date last 2018 Obs 8
Pa first 17 Pa last 27.4 P.A. Now (θ) 27.4°
Sep first 5.6 Sep last 6.625 Sep. Now (ρ) 6.625"
Mag pri 10.00 Mag sec 10.20 delta mag (ΔM) 0.2 Spectral class
Pri motion ra -014 Sec motion ra +006
Pri motion dec -003 Sec motion dec -006
Notes
rPM=1.412
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 2065095455031648512
 
 
WDS 20520+4009 MLB 955 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Mlb1918 Mb - Milburn, W. (Espin, T.E.) 1918MNRAS..78..189E
Mlb1918 MNRAS 78, 189, 1918 (MLB 1 - 35; measures by Espin)
Mlb1919 Mb - Milburn, W. (Espin, T.E.) 1919MNRAS..79..211E
Mlb1919 MNRAS 79, 211, 1919 (MLB 36 - 106; measures by Espin)
Mlb1920 Mb - Milburn, W. 1920MNRAS..80..329M
Mlb1920 MNRAS 80, 329, 1920 (MLB 107 - 149)
Mlb1921 Mb - Milburn, W. 1921MNRAS..81..232E
Mlb1921 MNRAS 81, 232, 1921 (MLB 150 - 182)
Mlb1922 Mb j Milburn, W. (Espin, T.E.) 1922MNRAS..82..187E
Mlb1922 MNRAS 82, 187, 1922 (MLB 183 - 241; measures by Espin)
Mlb1923 Mb - Milburn, W. 1923MNRAS..83..154E
Mlb1923 MNRAS 83, 154, 1923 (MLB 242 - 275)
Mlb1924 Mb - Milburn, W. 1924MNRAS..84..162E
Mlb1924 MNRAS 84, 162, 1924 (MLB 276 - 322)
Mlb1925 Mb j Milburn, W. 1925MNRAS..85..276E
Mlb1925 MNRAS 85, 276, 1925 (MLB 323 - 376)
Mlb1926 Mb - Milburn, W. 1926MNRAS..86..131E
Mlb1926 MNRAS 86, 131, 1926 (MLB 377 - 440)
Mlb1927 Mb j Milburn, W. 1927MNRAS..87..215E
Mlb1927 +Po MNRAS 87, 215, 1927 (MLB 441 - 510)
Mlb1928 Mb - Milburn, W. 1928MNRAS..88..185E
Mlb1928 MNRAS 88, 185, 1928 (MLB 511 - 551)
Mlb1929 Mb - Milburn, W. 1929MNRAS..89..268E
Mlb1929 MNRAS 89, 268, 1929 (MLB 552 - 591)
Mlb1930 Mb - Milburn, W. 1930MNRAS..90..317E
Mlb1930 MNRAS 90, 317, 1930 (MLB 592 - 630)
Mlb1931 Mb j Milburn, W. 1931MNRAS..91..294E
Mlb1931 MNRAS 91, 294, 1931 (MLB 631 - 673)
Mlb1932 Ma - Milburn, W. 1932MNRAS..92..214E
Mlb1932 +Mb MNRAS 92, 214, 1932 (MLB 674 - 732)
Mlb1932B Ma - Milburn, W. 1932QB821.A43......
Mlb1932B cited by ADS (Aitken Double Star Cat., 1932)
Mlb1933 Ma j Milburn, W. 1933MNRAS..93..192E
Mlb1933 +Mb MNRAS 93, 192, 1933 (MLB 733 - 806)
Mlb1934 Mb j Milburn, W. 1934MNRAS..94..255M
Mlb1934 MNRAS 94, 255, 1934 (MLB 807 - 912)
Mlb1935 Mb j Milburn, W. 1935MNRAS..95..298M
Mlb1935 MNRAS 95, 298, 1935 (MLB 913 - 969)
Mlb1936 Mb - Milburn, W. 1936MNRAS..96..266M
Mlb1936 MNRAS 96, 266, 1936 (MLB 970 - 997)
Mlb1937 Ma - Milburn, W. 1937MNRAS..97..222M
Mlb1937 +Mb MNRAS 97, 222, 1937 (MLB 998 - 1025)
Mlb1938 Ma - Milburn, W. 1938MNRAS..98..223M
Mlb1938 +Mb MNRAS 98, 223, 1938 (MLB 1026 - 1032)
Mlb1939 Mb - Milburn, W. 1939MNRAS..99..278M
Mlb1939 MNRAS 99, 278, 1939 (MLB 1033 - 1051)
Mlb9999 Mb - Milburn, W. ...................
Mlb9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20520+4009 MLB 955 1998 2 25 6.5 10.00 10.20 D 205206.91+400847.4
20520+4009 MLB 955 2002 3 25 6.6 10.00 10.20 D 205206.91+400847.4
20520+4009 MLB 955 2010 4 30 5.6 10.00 10.20 205206.91+400847.4
20520+4009 MLB 955 2015 4 27 6.6 10.00 10.20 205206.91+400847.4
20520+4009 MLB 955 2018 5 28 6.6 10.00 10.20 205206.91+400847.4

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

 
 
WDS 20520+4009 MLB 955 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20520+4009 MLB 955 : MEASURES
 
 
No records found.

 
 
WDS 20520+4009 : VIRTUAL EYEPIECE
 
 

20520+4009 MLB 955A mag 10 20520+4009 MLB 955B sep 6.3 P.A. 21.60 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 20520+4009 : ALADIN DSS IMAGE @ 20h 52m 06.91s +40° 08' 47.4"
 
 
 
 
WDS 20520+4009 MLB 955 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20520+4009 MLB 955 distance=0' 20526+4024 GRV 391 distance=17' 20514+3945 MLB 779AB distance=27' 20514+3945 DAM 316AC distance=27' 20514+3945 DAM 316AD distance=27' 20515+3944 DAM 317AB distance=28' 20515+3944 DAM 317AC distance=28' 20498+3958 SEI1267 distance=28' 20531+3940 SEI1292 distance=32' 20495+4035 COU2426 distance=41' 20556+4004 TDT2634 distance=41' 20488+4024 ALI1192 distance=41' 20486+4000 TOB 198 distance=42' 20490+3947 STF2731AB distance=42' 20490+3947 HO 596AC distance=42' 20490+3947 HO 596AD distance=42' 20545+3937 BRT2281 distance=42' 20544+4042 STT 420 distance=43' 20514+3927 TDT2581 distance=44' 20511+4051 TDT2578 distance=44' 20484+4002 SEI1255AB distance=44' 20484+4002 J 1237BC distance=44' 20546+4042 ES 1685AB distance=45' 20528+3925 SEI1290 distance=45' 20553+3944 SEI1315 distance=45' 20546+4042 ES 1685BC distance=45' 20551+3941 MLB 886 distance=45' 20558+3951 LDS2469 distance=46' 20481+3958 CVR 231 distance=47' 20544+3929 BKO 469 distance=48' 20549+3933 BKO 471 distance=49' 20555+3940 MLB 783 distance=49' 20547+3929 GRV 395 distance=49' 20550+3929 SEI1311 distance=53' 20485+4041 ES 1682 distance=53' 20555+3932 BKO 472 distance=54' 20478+3944 GRV 381 distance=55' 20510+3915 SEI1279AB distance=56' 20510+3915 SEI1279BC distance=56' 20493+3923 ALI 952BC distance=56' 20493+3923 DAM 26BD distance=56' 20493+3923 SEI1263AB distance=56' 20490+3925 TDT2560 distance=57' 20516+4106 ES 1683 distance=58' 20519+3911 SEI1283 distance=59' 20476+4038 CNT 9 distance=59' 20546+3914 BKO 470BC distance=62' 20546+3914 MLB 780AB distance=62' 20489+3919 TDT2558 distance=63' 20566+3932 SEI1325 distance=64' 20550+3914 ES 1983 distance=64' 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 20520+4009 MLB 955 27 6.6
Show 20526+4024 GRV 391 144 59.5 17
Show 20514+3945 MLB 779 AB 124 9.0 27
Show 20514+3945 DAM 316 AC 79 6.3 27
Show 20514+3945 DAM 316 AD 304 13.8 27
Show 20515+3944 DAM 317 AB 95 14.8 28
Show 20515+3944 DAM 317 AC 357 15.2 28
Show 20498+3958 SEI1267 308 3.1 28
Show 20531+3940 SEI1292 205 24.8 32
Show 20495+4035 COU2426 328 1.2 41
Show 20556+4004 TDT2634 54 1.9 41
Show 20488+4024 ALI1192 2 16.5 41
Show 20486+4000 TOB 198 96 21.0 42
Show 20490+3947 STF2731 AB 86 4.1 42
Show 20490+3947 HO 596 AC 178 18.0 42
Show 20490+3947 HO 596 AD 247 18.2 42
Show 20545+3937 BRT2281 73 3.6 42
Show 20544+4042 STT 420 2 5.8 43
Show 20514+3927 TDT2581 146 0.8 44
Show 20511+4051 TDT2578 81 2.6 44
Show 20484+4002 SEI1255 AB 338 24.4 44
Show 20484+4002 J 1237 BC 355 5.6 44
Show 20546+4042 ES 1685 AB 73 24.2 45
Show 20528+3925 SEI1290 222 14.2 45
Show 20553+3944 SEI1315 281 29.0 45
Show 20546+4042 ES 1685 BC 74 2.8 45
Show 20551+3941 MLB 886 141 7.0 45
Show 20558+3951 LDS2469 2 3.3 46
Show 20481+3958 CVR 231 359 9.7 47
Show 20544+3929 BKO 469 328 4.7 48
Show 20549+3933 BKO 471 171 5.5 49
Show 20555+3940 MLB 783 288 5.6 49
Show 20547+3929 GRV 395 211 59.7 49
Show 20550+3929 SEI1311 247 8.8 53
Show 20485+4041 ES 1682 152 3.1 53
Show 20555+3932 BKO 472 67 5.7 54
Show 20478+3944 GRV 381 340 35.8 55
Show 20510+3915 SEI1279 AB 147 12.9 56
Show 20510+3915 SEI1279 BC 189 7.3 56
Show 20493+3923 ALI 952 BC 50 4.9 56
Show 20493+3923 DAM 26 BD 53 9.5 56
Show 20493+3923 SEI1263 AB 98 23.6 56
Show 20490+3925 TDT2560 38 1.1 57
Show 20516+4106 ES 1683 205 5.2 58
Show 20519+3911 SEI1283 1 22.8 59
Show 20476+4038 CNT 9 292 9.0 59
Show 20546+3914 BKO 470 BC 280 2.9 62
Show 20546+3914 MLB 780 AB 64 9.6 62
Show 20489+3919 TDT2558 191 1.1 63
Show 20566+3932 SEI1325 140 27.8 64
Show 20550+3914 ES 1983 266 6.1 64

 
 
WDS 20520+4009 : COMPONENTS
 
 
  A
B pa=21.6°
sep=6.33"
 
 
20520+4009 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205206.91+400847.4 Mag 10 PmRA -14.00
PmDE -3.0
 
 
20520+4009 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205207.11+400853.3 Mag 10.2 PmRA 6.00
PmDE -6.0 Calc delta mag 0.2 Calc coord yes