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Current system
20387+4024
ES 1979


Nearby doubles
5' : 20382+4022
TDT2439

10' : 20392+4017
ES 1980

13' : 20379+4014
SEI1199

16' : 20396+4035
STT 410AB

20' : 20379+4005
ES 1978

21' : 20367+4021
NML 2

23' : 20377+4029
HJ 610

25' : 20395+4002
BRT2269

27' : 20405+4010
SEI1214AB

33' : 20362+4008
BRT2267

35' : 20374+3952
TDT2430

37' : 20402+3953
MLB 885

40' : 20363+3955
TDT2410

42' : 20420+4015
A 1433

42' : 20361+4056
CAN 23AB

42' : 20357+4053
BRT2266

42' : 20413+4051
COU2419

43' : 20349+4038
CAN 21

45' : 20422+4041
MLB 23

45' : 20390+4109
TDT2451

47' : 20382+3938
MLB 778

49' : 20419+3956
SEI1221

49' : 20426+4013
TDT2488

50' : 20416+3950
COU2290

50' : 20419+3953
SEI1222

51' : 20347+4051
CAN 20AB



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.

20387+4024 ES 1979

 
 
20h 38m 30.19s +40° 24' 47.0" P.A. 303.00 sep 7.6 mag 10.55,14.40
 
 
Coord 2000 20387+4024 Discov num ES 1979 Comp Coord arcsec 2000 20 38 30.19 +40 24 47.0
Date first 1922 Date last 2015 Obs 8
Pa first 302 Pa last 303.2 P.A. Now (θ) 303.2°
Sep first 7.1 Sep last 7.641 Sep. Now (ρ) 7.641"
Mag pri 10.55 Mag sec 14.40 delta mag (ΔM) 3.85 Spectral class
Pri motion ra +000 Sec motion ra
Pri motion dec -006 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3157-01230-1 Gaia DR2 2064580613002345600
 
 
WDS 20387+4024 ES 1979 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Es_1901 Mb - Espin, T.E. 1901AN....155..321E
Es_1901 AN 155, 321, 1901 (ES 1 - 39)
Es_1902a Ma - Espin, T.E. 1902AN....158..241E
Es_1902a +Mb AN 158, 241, 1902 (ES 40 - 112)
Es_1902b Mb - Espin, T.E. 1902MNRAS..62..528E
Es_1902b MNRAS 62, 528, 1902
Es_1902c Mb j Espin, T.E. 1902MNRAS..62..402E
Es_1902c MNRAS 62, 402, 1902
Es_1903 Mb - Espin, T.E. 1903MNRAS..63..172E
Es_1903 MNRAS 63, 172, 1903 (ES 113 - 150)
Es_1904a - Espin, T.E. 1904MNRAS..64..238E
Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E
Es_1904b Mb - Espin, T.E. 1904MNRAS..64..675E
Es_1904b MNRAS 64, 675, 1904
Es_1905 Mb - Espin, T.E. 1905MNRAS..65..710E
Es_1905 MNRAS 65, 710, 1905 (ES 151 - 221)
Es_1906a Mb - Espin, T.E. 1906MNRAS..66..141E
Es_1906a MNRAS 66, 141, 1906 (ES 222 - 269)
Es_1906b Mb - Espin, T.E. 1906MNRAS..66..430E
Es_1906b MNRAS 66, 430, 1906 (ES 270 - 311)
Es_1906C Mb - Espin, T.E. 1906QB821.B972.....
Es_1906C cited in BDS (Burnham Double Star Cat.), 1906
Es_1906D Mb - Espin, T.E. 1906MmRAS..56....1L
Es_1906D cited by Lewis (MemRAS 56, 1, 1906)
Es_1907a Mb j Espin, T.E. 1907MNRAS..67..190E
Es_1907a MNRAS 67, 190, 1907 (ES 312 - 403)
Es_1907b Mb - Espin, T.E. 1907MNRAS..67..495E
Es_1907b MNRAS 67, 495, 1907 (ES 404 - 442)
Es_1908a Mb j Espin, T.E. 1908MNRAS..68..202E
Es_1908a MNRAS 68, 202, 1908 (ES 443 - 551)
Es_1908b Mb - Espin, T.E. 1908MNRAS..68..523E
Es_1908b MNRAS 68, 523, 1908 (ES 552 - 609)
Es_1908c - Espin, T.E. 1908JRASC...2..248E
Es_1908c JRASC 2, 248, 1908 (data also in MNRAS 69, 218, 1909) 1909MNRAS..69..218E
Es_1909a Mb j Espin, T.E. 1909MNRAS..69..218E
Es_1909a MNRAS 69, 218, 1909 (ES 610 - 704)
Es_1909b Mb j Espin, T.E. 1909MNRAS..69..604E
Es_1909b MNRAS 69, 604, 1909 (ES 705 - 743)
Es_1910a Mb - Espin, T.E. 1910MNRAS..70..237E
Es_1910a MNRAS 70, 237, 1910 (ES 744 - 864)
Es_1910b Mb - Espin, T.E. 1910MNRAS..70..541E
Es_1910b MNRAS 70, 541, 1910 (ES 865 - 927)
Es_1911 Mb - Espin, T.E. 1911MNRAS..71..217E
Es_1911 MNRAS 71, 217, 1911 (ES 928 - 1051)
Es_1912 Mb - Espin, T.E. 1912MNRAS..72..191E
Es_1912 MNRAS 72, 191, 1912 (ES 1052 - 1125)
Es_1913 Mb j Espin, T.E. 1913MNRAS..73..162E
Es_1913 MNRAS 73, 162, 1913 (ES 1126 - 1191)
Es_1914 Mb j Espin, T.E. 1914MNRAS..74..244E
Es_1914 MNRAS 74, 244, 1914 (ES 1192 - 1293)
Es_1915a Mb - Espin, T.E. 1915MNRAS..75..203E
Es_1915a MNRAS 75, 203, 1915 (ES 1294 - 1356)
Es_1915b Mb - Espin, T.E. 1915MNRAS..75..555E
Es_1915b MNRAS 75, 555, 1915 (ES 1357 - 1405)
Es_1915c Mb - Espin, T.E. 1915MNRAS..76..210E
Es_1915c MNRAS 76, 210, 1915 (ES 1406 - 1479)
Es_1917 Mb - Espin, T.E. 1917MNRAS..77..236E
Es_1917 MNRAS 77, 236, 1917 (ES 1480 - 1600)
Es_1918 Mb j Espin, T.E. 1918MNRAS..78..189E
Es_1918 MNRAS 78, 189, 1918 (ES 1601 - 1705, MLB 1 - 35)
Es_1919 Mb - Espin, T.E. 1919MNRAS..79..211E
Es_1919 MNRAS 79, 211, 1919 (ES 1706 - 1768, MLB 36 - 106)
Es_1920 Mb - Espin, T.E. 1920MNRAS..80..329E
Es_1920 MNRAS 80, 329, 1920 (ES 1769 - 1805, MLB 107 - 149)
Es_1921 Mb j Espin, T.E. 1921MNRAS..81..232E
Es_1921 MNRAS 81, 232, 1921 (ES 1806 - 1864, MLB 150 - 182)
Es_1922 Mb - Espin, T.E. 1922MNRAS..82..187E
Es_1922 MNRAS 82, 187, 1922 (ES 1865 - 1933, MLB 183 - 241)
Es_1923 Mb - Espin, T.E. 1923MNRAS..83..154E
Es_1923 MNRAS 83, 154, 1923 (ES 1934 - 2006, MLB 242 - 275)
Es_1924 Mb - Espin, T.E. 1924MNRAS..84..162E
Es_1924 MNRAS 84, 162, 1924 (ES 2007 - 2078, MLB 276 - 322)
Es_1925a Mb - Espin, T.E. 1925MNRAS..85..276E
Es_1925a MNRAS 85, 276, 1925 (ES 2079 - 2137, MLB 323 - 376)
Es_1925b Mb - Espin, T.E. 1925MNRAS..86...79E
Es_1925b MNRAS 86, 79, 1925
Es_1926 Mb - Espin, T.E. 1926MNRAS..86..131E
Es_1926 MNRAS 86, 131, 1926 (ES 2138 - 2209, MLB 377 - 440)
Es_1927 Mb - Espin, T.E. 1927MNRAS..87..215E
Es_1927 MNRAS 87, 215, 1927 (ES 2210 - 2273, MLB 441 - 510)
Es_1928 Mb - Espin, T.E. 1928MNRAS..88..185E
Es_1928 MNRAS 88, 185, 1928 (ES 2274 - 2328, MLB 511 - 551)
Es_1929 Mb - Espin, T.E. 1929MNRAS..89..268E
Es_1929 MNRAS 89, 268, 1929 (ES 2329 - 2362, MLB 552 - 591)
Es_1930 Mb - Espin, T.E. 1930MNRAS..90..317E
Es_1930 MNRAS 90, 317, 1930 (ES 2363 - 2400, MLB 592 - 630)
Es_1931 Mb - Espin, T.E. 1931MNRAS..91..294E
Es_1931 MNRAS 91, 294, 1931 (ES 2401 - 2444, MLB 631 - 673)
Es_1932a Mb - Espin, T.E. 1932MNRAS..92..214E
Es_1932a MNRAS 92, 214, 1932 (ES 2445 - 2543, MLB 674 - 732)
Es_1932B Mb - Espin, T.E. 1932QB821.A43......
Es_1932B cited in ADS (Aitken Double Star Cat.), 1932
Es_1933 Mb - Espin, T.E. 1933MNRAS..93..192E
Es_1933 MNRAS 93, 192, 1933 (ES 2544 - 2575, MLB 733 - 806)
Es_1937A Mb - Espin, T.E. 1937AnLei..18....1S
Es_1937A cited by Strand (Ann. Sterrew. Leiden 18, 1937)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20387+4024 ES 1979 1998 2 303 7.6 10.55 14.40 D 203830.19+402447.0
20387+4024 ES 1979 2002 3 303 7.6 10.55 14.40 D 203830.19+402447.0
20387+4024 ES 1979 2010 4 305 6.9 10.55 14.40 203830.19+402447.0
20387+4024 ES 1979 2015 4 304 7.7 10.55 14.40 203830.19+402447.0

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

 
 
WDS 20387+4024 ES 1979 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20387+4024 ES 1979 : MEASURES
 
 
No records found.

 
 
WDS 20387+4024 : VIRTUAL EYEPIECE
 
 

20387+4024 ES 1979A mag 10.55 20387+4024 ES 1979B sep 6.4 P.A. 310.70 mag 14.4 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 20387+4024 : ALADIN DSS IMAGE @ 20h 38m 30.19s +40° 24' 47.0"
 
 
 
 
WDS 20387+4024 ES 1979 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20387+4024 ES 1979 distance=0' 20382+4022 TDT2439 distance=5' 20392+4017 ES 1980 distance=10' 20379+4014 SEI1199 distance=13' 20396+4035 STT 410AB distance=16' 20396+4035 STT 410AB,C distance=16' 20396+4035 STT 410AB,D distance=16' 20379+4005 ES 1978 distance=20' 20367+4021 NML 2 distance=21' 20377+4029 HJ 610 distance=23' 20395+4002 BRT2269 distance=25' 20405+4010 SEI1214AB distance=27' 20405+4010 TOB 196BC distance=27' 20362+4008 BRT2267 distance=33' 20374+3952 TDT2430 distance=35' 20402+3953 MLB 885 distance=37' 20363+3955 TDT2410 distance=40' 20420+4015 A 1433 distance=42' 20361+4056 CAN 23AB distance=42' 20361+4056 CAN 23AC distance=42' 20361+4056 CAN 23AD distance=42' 20361+4056 CAN 23AE distance=42' 20361+4056 CAN 23AF distance=42' 20357+4053 BRT2266 distance=42' 20413+4051 COU2419 distance=42' 20349+4038 CAN 21 distance=43' 20422+4041 MLB 23 distance=45' 20390+4109 TDT2451 distance=45' 20382+3938 MLB 778 distance=47' 20419+3956 SEI1221 distance=49' 20426+4013 TDT2488 distance=49' 20416+3950 COU2290 distance=50' 20419+3953 SEI1222 distance=50' 20347+4051 CAN 20AB distance=51' 20347+4051 CAN 20AC distance=51' 20347+4052 CAN 17AB distance=51' 20347+4052 CAN 17AC distance=51' 20429+4036 MLB 24 distance=52' 20339+4031 OPI9006 distance=54' 20339+4034 AG 409 distance=54' 20432+4026 COU2421 distance=55' 20338+4012 TDT2375 distance=56' 20336+4041 CAN 12AB distance=58' 20336+4041 CAN 12AC distance=58' 20436+4024 DAM1256 distance=59' 20343+3950 MLB 883 distance=60' 20332+4028 HJ 609 distance=61' 20427+3947 TDT2491 distance=61' 20434+4001 BRT2272 distance=62' 20440+4030 SLN 85 distance=64' 20341+4105 CAN 69AB distance=65' 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 20387+4024 ES 1979 303 7.6
Show 20382+4022 TDT2439 22 0.4 5
Show 20392+4017 ES 1980 60 8.3 10
Show 20379+4014 SEI1199 99 9.3 13
Show 20396+4035 STT 410 AB 3 0.9 16
Show 20396+4035 STT 410 AB,C 70 68.6 16
Show 20396+4035 STT 410 AB,D 327 106.6 16
Show 20379+4005 ES 1978 136 2.9 20
Show 20367+4021 NML 2 350 0.6 21
Show 20377+4029 HJ 610 176 25.6 23
Show 20395+4002 BRT2269 199 5.0 25
Show 20405+4010 SEI1214 AB 78 20.3 27
Show 20405+4010 TOB 196 BC 32 23.4 27
Show 20362+4008 BRT2267 163 4.4 33
Show 20374+3952 TDT2430 172 1.3 35
Show 20402+3953 MLB 885 72 1.7 37
Show 20363+3955 TDT2410 76 0.6 40
Show 20420+4015 A 1433 24 0.8 42
Show 20361+4056 CAN 23 AB 333 4.8 42
Show 20361+4056 CAN 23 AC 245 5.4 42
Show 20361+4056 CAN 23 AD 175 6.6 42
Show 20361+4056 CAN 23 AE 113 7.5 42
Show 20361+4056 CAN 23 AF 329 14.0 42
Show 20357+4053 BRT2266 325 7.5 42
Show 20413+4051 COU2419 69 0.8 42
Show 20349+4038 CAN 21 165 7.7 43
Show 20422+4041 MLB 23 41 7.6 45
Show 20390+4109 TDT2451 105 0.7 45
Show 20382+3938 MLB 778 285 8.3 47
Show 20419+3956 SEI1221 254 2.0 49
Show 20426+4013 TDT2488 138 0.5 49
Show 20416+3950 COU2290 43 0.5 50
Show 20419+3953 SEI1222 77 25.4 50
Show 20347+4051 CAN 20 AB 164 10.9 51
Show 20347+4051 CAN 20 AC 330 13.8 51
Show 20347+4052 CAN 17 AB 335 9.6 51
Show 20347+4052 CAN 17 AC 286 12.3 51
Show 20429+4036 MLB 24 175 5.9 52
Show 20339+4031 OPI9006 300 17.0 54
Show 20339+4034 AG 409 266 9.8 54
Show 20432+4026 COU2421 110 0.3 55
Show 20338+4012 TDT2375 112 2.2 56
Show 20336+4041 CAN 12 AB 239 5.8 58
Show 20336+4041 CAN 12 AC 255 9.5 58
Show 20436+4024 DAM1256 106 9.6 59
Show 20343+3950 MLB 883 310 10.0 60
Show 20332+4028 HJ 609 320 26.7 61
Show 20427+3947 TDT2491 275 1.4 61
Show 20434+4001 BRT2272 285 5.1 62
Show 20440+4030 SLN 85 203 9.1 64
Show 20341+4105 CAN 69 AB 243 1.5 65

 
 
WDS 20387+4024 : COMPONENTS
 
 
  A
B pa=310.7°
sep=6.42"
 
 
20387+4024 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 203830.19+402447.0 Mag 10.55 PmRA 0.00
PmDE -6.0 Tycho2 3157-01230-1
Tycho2
Tycho2 3157-01230-1 Pflag RAmdeg 309.62582600 DEmdeg 40.41307493
PmRA -1.1 PmDE -4.9 E RAmdeg 21 E DEmdeg 20
E pmRA 1.1 E pmDE 1.1 EpRAm 1986.40 EpDEm 1986.56
Num 6 Q RAmdeg 1.8 Q DEmdeg 1.0 Q pmRA 1.7
Q pmDE 1.0 BTmag 10.798 E BTmag 0.037 VTmag 10.548
E VTmag 0.039 Prox 657 TYC T HIP
CCDM RAdeg 309.62583889 DEdeg 40.41308500 EpRA 1990 1.61
EpDE 1990 1.69 E RAdeg 24.1 E DEdeg 22.8 Posflg
Corr 0.1
 
 
20387+4024 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 203829.76+402451.2 Mag 14.4 Calc delta mag 3.85
Calc coord yes