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Doubles in session


Current system
20047+4938
ES 2688 BC


Nearby doubles
16' : 20052+4923
HJ 1481AB

43' : 20014+5006
H 5 47AB

52' : 20032+5028
HO 454

53' : 20055+5030
ES 798AB

57' : 20104+4949
STF2648

60' : 20105+4923
ES 1099

62' : 20109+4925
KPP1341

63' : 20111+4946
ES 2691

69' : 20117+4943
ES 500

74' : 20096+5034
TDT2035

74' : 19571+4939
HDS2839

79' : 20128+4938
KPP1802

82' : 20016+4823
TDT1919

82' : 19591+5040
HJ 1464

85' : 20045+4814
CHR 91

86' : 20012+4821
A 720

87' : 20131+4911
ES 502

88' : 20057+4812
TDT1966

90' : 19559+4912
HU 688

91' : 20011+4816
STF2619AB

91' : 20073+4811
HDS2867

92' : 20095+4821
TDT2033

95' : 20062+5112
TDT1980

97' : 20046+5115
TDS1040

99' : 19546+4940
TDS1023

102' : 20150+4923
TDT2120



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.

20047+4938 ES 2688 BC

 
 
20h 04m 40.11s +49° 38' 27.8" P.A. 169.00 sep 15.4 mag 10.41,15.10 Sp A2
 
 
Coord 2000 20047+4938 Discov num ES 2688 Comp BC Coord arcsec 2000 20 04 40.11 +49 38 27.8
Date first 1909 Date last 2015 Obs 5
Pa first 159 Pa last 168.8 P.A. Now (θ) 168.8°
Sep first 13.9 Sep last 15.392 Sep. Now (ρ) 15.392"
Mag pri 10.41 Mag sec 15.10 delta mag (ΔM) 4.69 Spectral class A2 (white)
Pri motion ra +007 Sec motion ra
Pri motion dec -016 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20047+4938 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 04 40 +49 38 31 KU 58 AB 2020 19 186 2.7 10.23 10.41 0.18
Show 20 04 40 +49 38 28 ES 2688 BC 2015 5 169 15.4 10.41 15.10 4.69 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3567-00721-2 Gaia DR2 2087754985222802048
 
 
WDS 20047+4938 ES 2688 BC : 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)
Ku_1884 Ma - Kustner, F. 1884AN....108..281K
Ku_1884 AN 108, 281, 1884
Ku_1902 Ma - Kustner, F. 1902AN....160...71K
Ku_1902 AN 160, 71, 1902
Ku_1905A Ma - Kustner, F. 1905LicOB...3..147A
Ku_1905A cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
Ku_1963A - Kustner, F. 1963icvd.book.....J
Ku_1963A cited in IDS (Lick Index Cat.), 1963
Ku_1932A - Kustner, F. 1932QB821.A43......
Ku_1932A cited in ADS (Aitken Double Star Cat.), 1932
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20047+4938 ES 2688 BC 1909 1 159 13.9 9.00 13.70 200440.10+493826.0
20047+4938 ES 2688 BC 1999 2 151 16.4 10.41 15.10 D 200440.11+493827.8
20047+4938 ES 2688 BC 2003 3 152 18.0 10.41 15.10 D 200440.11+493827.8
20047+4938 ES 2688 BC 2011 4 169 15.7 10.41 15.10 D 200440.11+493827.8
20047+4938 ES 2688 BC 2015 5 169 15.4 10.41 15.10 A2 200440.11+493827.8

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

 
 
WDS 20047+4938 ES 2688 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20047+4938 ES 2688 BC : MEASURES
 
 
No records found.

 
 
WDS 20047+4938 : VIRTUAL EYEPIECE
 
 

20047+4938 KU 58A mag 10.23 Sp A2 20047+4938 ES 2688B sep 2.8 P.A. 185.90 mag 10.41 Sp A2 20047+4938 ES 2688C sep 18.0 P.A. 174.80 mag 15.1 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 20047+4938 : ALADIN DSS IMAGE @ 20h 04m 40.11s +49° 38' 27.8"
 
 
 
 
WDS 20047+4938 ES 2688 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20047+4938 ES 2688BC distance=0' 20047+4938 KU 58AB distance=1' 20052+4923 ARN9002BC distance=16' 20052+4923 HJ 1481AB distance=16' 20052+4923 HJ 1481AC distance=16' 20052+4923 ABH 128AD distance=16' 20052+4923 ABH 128AE distance=16' 20052+4923 ABH 128AF distance=16' 20052+4923 ABH 128AG distance=16' 20052+4923 ABH 128AH distance=16' 20052+4923 ABH 128AI distance=16' 20014+5006 H 5 47BC distance=42' 20014+5006 H 5 47BD distance=42' 20014+5006 H 5 47AB distance=43' 20014+5006 H 5 47AE distance=43' 20032+5028 HO 454 distance=52' 20055+5030 ES 798BC distance=53' 20055+5030 ES 798AB distance=53' 20104+4949 STF2648 distance=57' 20105+4923 ES 1099 distance=60' 20109+4925 KPP1341 distance=62' 20111+4946 ES 2691 distance=63' 20117+4943 ES 500 distance=69' 20096+5034 TDT2035 distance=74' 19571+4939 HDS2839 distance=74' 20128+4938 KPP1802 distance=79' 20016+4823 TDT1919 distance=82' 19591+5040 HJ 1464 distance=82' 20045+4814 CHR 91 distance=85' 20012+4821 A 720 distance=86' 20131+4911 ES 502 distance=87' 20057+4812 TDT1966 distance=88' 19559+4912 HU 688 distance=90' 20011+4816 STF2619CD distance=91' 20011+4816 STF2619AB distance=91' 20011+4816 STF2619AC distance=91' 20011+4816 DEA 60AE distance=91' 20011+4816 STF2619AD distance=91' 20011+4816 STF2619BC distance=91' 20011+4816 STF2619BD distance=91' 20073+4811 HDS2867 distance=91' 20095+4821 TDT2033 distance=92' 20062+5112 TDT1980 distance=95' 20046+5115 TDS1040 distance=97' 19546+4940 TDS1023 distance=99' 20150+4923 TDT2120 distance=102' 19567+4831 TDT1865 distance=104' 20096+5112 NSN 729 distance=105' 19539+4918 ACA 2 distance=107' 19537+4936 ES 2685 distance=107' 19540+4915 ES 2686 distance=107' 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 20047+4938 ES 2688 BC 169 15.4
Show 20047+4938 KU 58 AB 186 2.7 1
Show 20052+4923 ARN9002 BC 240 33.8 16
Show 20052+4923 HJ 1481 AB 6 18.1 16
Show 20052+4923 HJ 1481 AC 272 27.4 16
Show 20052+4923 ABH 128 AD 104 118.5 16
Show 20052+4923 ABH 128 AE 104 104.9 16
Show 20052+4923 ABH 128 AF 38 78.2 16
Show 20052+4923 ABH 128 AG 318 81.1 16
Show 20052+4923 ABH 128 AH 256 100.8 16
Show 20052+4923 ABH 128 AI 250 103.4 16
Show 20014+5006 H 5 47 BC 76 8.8 42
Show 20014+5006 H 5 47 BD 258 9.4 42
Show 20014+5006 H 5 47 AB 150 41.8 43
Show 20014+5006 H 5 47 AE 343 168.3 43
Show 20032+5028 HO 454 53 5.9 52
Show 20055+5030 ES 798 BC 325 3.3 53
Show 20055+5030 ES 798 AB 107 80.9 53
Show 20104+4949 STF2648 118 6.7 57
Show 20105+4923 ES 1099 186 4.9 60
Show 20109+4925 KPP1341 257 10.1 62
Show 20111+4946 ES 2691 314 9.5 63
Show 20117+4943 ES 500 345 5.4 69
Show 20096+5034 TDT2035 92 0.8 74
Show 19571+4939 HDS2839 80 0.6 74
Show 20128+4938 KPP1802 125 14.0 79
Show 20016+4823 TDT1919 37 1.0 82
Show 19591+5040 HJ 1464 41 12.8 82
Show 20045+4814 CHR 91 213 0.4 85
Show 20012+4821 A 720 96 0.5 86
Show 20131+4911 ES 502 220 14.0 87
Show 20057+4812 TDT1966 152 1.7 88
Show 19559+4912 HU 688 291 3.9 90
Show 20011+4816 STF2619 CD 175 5.4 91
Show 20011+4816 STF2619 AB 239 4.0 91
Show 20011+4816 STF2619 AC 352 20.2 91
Show 20011+4816 DEA 60 AE 6 61.8 91
Show 20011+4816 STF2619 AD 352 14.8 91
Show 20011+4816 STF2619 BC 4 22.1 91
Show 20011+4816 STF2619 BD 6 16.9 91
Show 20073+4811 HDS2867 124 0.4 91
Show 20095+4821 TDT2033 7 2.2 92
Show 20062+5112 TDT1980 42 0.8 95
Show 20046+5115 TDS1040 272 1.4 97
Show 19546+4940 TDS1023 347 2.1 99
Show 20150+4923 TDT2120 323 3.6 102
Show 19567+4831 TDT1865 19 1.7 104
Show 20096+5112 NSN 729 16 42.2 105
Show 19539+4918 ACA 2 299 23.0 107
Show 19537+4936 ES 2685 250 32.9 107
Show 19540+4915 ES 2686 304 19.1 107

 
 
WDS 20047+4938 : COMPONENTS
 
 
  A B
B pa=185.9°
sep=2.82"
 
C pa=174.8°
sep=17.97"
pa=172.7°
sep=15.22"
 
 
20047+4938 A
 
 
Coord arcsec 2000 200440.14+493830.6 Mag 10.23 Spectral class A2 (white) PmRA 13.00
PmDE 24.0 Tycho2 3567-00721-1
Tycho2
Tycho2 3567-00721-1 Pflag P RAmdeg 301.16720662 DEmdeg 49.64150569
PmRA 8.3 PmDE 2.3 E RAmdeg 22 E DEmdeg 24
E pmRA 2.2 E pmDE 2.0 EpRAm 1990.01 EpDEm 1989.58
Num 5 Q RAmdeg 1.0 Q DEmdeg 0.4 Q pmRA 1.0
Q pmDE 0.4 BTmag 10.495 E BTmag 0.035 VTmag 10.233
E VTmag 0.038 Prox 28 TYC T HIP
CCDM RAdeg 301.16722972 DEdeg 49.64183083 EpRA 1990 1.60
EpDE 1990 1.72 E RAdeg 22.0 E DEdeg 23.7 Posflg D
Corr 0.0
CCDM
Ccdm 20047+4938 RComp Comp A Note1
Note2 Discov num DRAs -2.05 DDEs 29.4
R dRAs 10 Year Theta Rho
Obs 3 Vmag 10.2 Sp PmNote *
PmRA -7 PmDE 1 Dm number +49 3180 Cat1 BD
Name2 +49 1623 Cat2 AGK2/3 HD M HD
ADS BDS A13345 M ADS BDS N IDS IDS 20018N4921A
HIC
 
 
20047+4938 B
 
 
Coord arcsec 2000 200440.11+493827.8 Coord calc 200440.11+493827.8 Mag 10.41 Spectral class A2 (white)
PmRA 7.00 PmDE -16.0 Tycho2 3567-00721-2 Calc delta mag 0.18
Tycho2
Tycho2 3567-00721-2 Pflag P RAmdeg 301.16720662 DEmdeg 49.64150569
PmRA 8.3 PmDE 2.3 E RAmdeg 22 E DEmdeg 24
E pmRA 2.2 E pmDE 2.0 EpRAm 1990.01 EpDEm 1989.58
Num 5 Q RAmdeg 1.0 Q DEmdeg 0.4 Q pmRA 1.0
Q pmDE 0.4 BTmag 10.659 E BTmag 0.040 VTmag 10.410
E VTmag 0.043 Prox 28 TYC T HIP
CCDM RAdeg 301.16710917 DEdeg 49.64106611 EpRA 1990 1.63
EpDE 1990 1.73 E RAdeg 25.0 E DEdeg 27.1 Posflg D
Corr 0.0
CCDM
Ccdm 20047+4938 RComp Comp B Note1
Note2 Discov num KU 58 DRAs DDEs
R dRAs Year 1901 Theta 188 Rho 2.9
Obs 6 Vmag 10.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13345 M ADS BDS N IDS IDS 20018N4921B
HIC
 
 
20047+4938 C
 
 
Coord arcsec 2000 200440.31+493812.7 Mag 15.1 Calc delta mag 4.87 Calc coord yes
CCDM
Ccdm 20047+4938 RComp B Comp C Note1
Note2 Discov num KU 58 DRAs DDEs
R dRAs Year 1909 Theta 159 Rho 13.9
Obs 1 Vmag 14.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13345 M ADS BDS N IDS IDS 20018N4921C
HIC