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Doubles in session


Current system
21020+3914
LV 9


Nearby doubles
3' : 21018+3916
STF2746

17' : 21023+3931
H 4 113AB

21' : 21015+3855
SEI1371

21' : 21009+3900
SEI1365

26' : 21037+3857
TDT2720

27' : 21042+3924
SEI1389

29' : 21013+3846
ES 2057

30' : 21008+3940
SEI1364

31' : 20595+3923
SEI1357

31' : 21040+3854
TDT2723

32' : 21025+3844
SEI1374

32' : 21047+3908
SEI1393

33' : 21029+3946
SEI1379

33' : 20593+3924
TOB 207

34' : 20593+3925
SEI1353

35' : 21014+3948
SEI1370

36' : 21051+3914
ES 1987

36' : 21012+3949
SEI1369

38' : 21037+3842
SEI1384

39' : 20591+3932
TOB 205

40' : 20589+3931
SEI1348

40' : 20587+3922
BKO 478

43' : 20592+3941
SEI1351AB

44' : 20586+3856
SEI1341

44' : 20583+3904
SEI1340

46' : 21054+3937
CRB 137



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.

21020+3914 LV 9

 
 
21h 02m 02.12s +39° 14' 05.2" P.A. 195.00 sep 2.3 mag 10.47,11.65
 
 
Coord 2000 21020+3914 Discov num LV    9 Comp Coord arcsec 2000 21 02 02.12 +39 14 05.2
Date first 1896 Date last 2017 Obs 18
Pa first 193 Pa last 194.9 P.A. Now (θ) 194.9°
Sep first 2.4 Sep last 2.283 Sep. Now (ρ) 2.283"
Mag pri 10.47 Mag sec 11.65 delta mag (ΔM) 1.18 Spectral class
Pri motion ra -003 Sec motion ra -004
Pri motion dec -014 Sec motion dec -013
Notes V (Proper motion indicates physical)
rPM=0.099 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3168-01332-1 Gaia DR2 1872221947086345472
 
 
WDS 21020+3914 LV 9 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Lv_1887 Ma - Leavenworth, F.P. 1887SidM....6...80L
Lv_1887 Sidereal Messenger 6, 80, 1887 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1888 Ma - Leavenworth, F.P. 1888SidM....7..172L
Lv_1888 Sidereal Messenger 7, 172, 1888 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1889a Ma - Leavenworth, F.P. .
Lv_1889a Micrometer Measurements of Double Stars and other observations made at the
Lv_1889a Haverford College Observatory, 1889 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1889b Ma - Leavenworth, F.P. 1889SidM....8...77L
Lv_1889b Sidereal Messenger 8, 77, 1889 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1891 Ma - Leavenworth, F.P. .
Lv_1891 Proc. Haverford College Observatory 1, 28, 1891
Lv_1891 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1892a Ma - Leavenworth, F.P. 1892AJ.....12...41L
Lv_1892a AJ 12, 41, 1892
Lv_1892b Ma - Leavenworth, F.P. 1892AJ.....12..105L
Lv_1892b AJ 12, 105, 1892 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1892c Ma - Leavenworth, F.P. .
Lv_1892c Proc. Haverford College Observatory 2, 11, 1892
Lv_1892c (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1896a Ma j Leavenworth, F.P. 1896AJ.....16..195L
Lv_1896a AJ 16, 195, 1896 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1896b Ma - Leavenworth, F.P. 1896AJ.....17...35L
Lv_1896b AJ 17, 35, 1896 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1897 Ma - Leavenworth, F.P. 1897AJ.....17..177L
Lv_1897 AJ 17, 177, 1897 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1906A Ma - Leavenworth, F.P. 1906MmRAS..56....1L
Lv_1906A cited by Lewis (MemRAS 56, 1, 1906)
Lv_1912 Ma - Leavenworth, F.P. 1912AJ.....27...71L
Lv_1912 AJ 27, 71, 1912 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1915a Ma - Leavenworth, F.P. 1915AJ.....29...17L
Lv_1915a AJ 29, 17, 1915 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1915b Ma j Leavenworth, F.P. 1915AJ.....29...41L
Lv_1915b AJ 29, 41, 1915 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1915c Ma j Leavenworth, F.P. & Muller, F. 1915PMcCO...1...45L
Lv_1915c Pub. McCormick Observatory 1, 45, 1915 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1917a Ma - Leavenworth, F.P. 1917AJ.....30..107L
Lv_1917a AJ 30, 107, 1917 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1917b Ma - Leavenworth, F.P. 1917AJ.....30..115L
Lv_1917b AJ 30, 115, 1917 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1919a Ma j Leavenworth, F.P. 1919AJ.....32...39L
Lv_1919a AJ 32, 39, 1919 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1919b Ma - Leavenworth, F.P. 1919AJ.....32...41L
Lv_1919b AJ 32, 41, 1919 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1919c Ma - Leavenworth, F.P. 1919AJ.....32..129L
Lv_1919c AJ 32, 129, 1919 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1921 Ma j Leavenworth, F.P. 1921AJ.....33..158L
Lv_1921 AJ 33, 158, 1921 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1922 Ma j Leavenworth, F.P. 1921AJ.....34..151L
Lv_1922 AJ 34, 151, 1922 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1925 Ma - Leavenworth, F.P. 1921AJ.....36..105L
Lv_1925 AJ 36, 105, 1925 (also in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1927 Ma - Leavenworth, F.P. 1921AJ.....37..141L
Lv_1927 AJ 37, 141, 1927 (most in Univ. Minnesota Press, 1930) 1930QB821.L4.......
Lv_1930 Ma j Leavenworth, F.P. & Beal, W.O. 1930QB821.L4.......
Lv_1930 Meaures of Double Stars (Minneapolis, Univ. Minnesota Press), 1930
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21020+3914 LV 9 2002 14 194 2.2 10.47 11.65 210202.12+391405.2
21020+3914 LV 9 2009 15 193 2.3 10.47 11.65 210202.12+391405.2
21020+3914 LV 9 2015 16 194 2.3 10.47 11.65 210202.12+391405.2
21020+3914 LV 9 2017 17 195 2.3 10.47 11.65 210202.12+391405.2

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

 
 
WDS 21020+3914 LV 9 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21020+3914 LV 9 : MEASURES
 
 
No records found.

 
 
WDS 21020+3914 : VIRTUAL EYEPIECE
 
 

21020+3914 LV 9A mag 10.47 21020+3914 LV 9B sep 2.2 P.A. 191.60 mag 11.65 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 21020+3914 : ALADIN DSS IMAGE @ 21h 02m 02.12s +39° 14' 05.2"
 
 
 
 
WDS 21020+3914 LV 9 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21020+3914 LV 9 distance=0' 21018+3916 STF2746 distance=3' 21023+3931 H 4 113AB distance=17' 21023+3931 H 4 113AC distance=17' 21023+3931 SMY 6AE distance=17' 21023+3931 WRD 4AF distance=17' 21023+3931 SMY 6AD distance=17' 21023+3931 WRD 4AG distance=17' 21023+3931 FYM 114AI distance=17' 21023+3931 WRD 4ED distance=18' 21023+3931 WRD 4EH distance=18' 21015+3855 SEI1371 distance=21' 21009+3900 SEI1365 distance=21' 21037+3857 TDT2720 distance=26' 21042+3924 SEI1389 distance=27' 21013+3846 ES 2057 distance=29' 21008+3940 SEI1364 distance=30' 20595+3923 SEI1357 distance=31' 21040+3854 TDT2723 distance=31' 21025+3844 SEI1374 distance=32' 21047+3908 SEI1393 distance=32' 21029+3946 SEI1379 distance=33' 20593+3924 TOB 207 distance=33' 20593+3925 SEI1353 distance=34' 21014+3948 SEI1370 distance=35' 21051+3914 ES 1987 distance=36' 21012+3949 SEI1369 distance=36' 21037+3842 SEI1384 distance=38' 20591+3932 TOB 205 distance=39' 20589+3931 SEI1348 distance=40' 20587+3922 BKO 478 distance=40' 20592+3941 SEI1351AB distance=43' 20592+3941 TOB 206AC distance=43' 20586+3856 SEI1341 distance=44' 20583+3904 SEI1340 distance=44' 21054+3937 CRB 137 distance=46' 20591+3944 BKO 480 distance=46' 21058+3929 A 2691CD distance=46' 21058+3929 A 2691AB distance=46' 21058+3929 A 2691AC distance=46' 20580+3918 ES 1985AB distance=47' 20580+3918 SEI1338AC distance=47' 20592+3946 BKO 481 distance=47' 20580+3918 BKO 476BD distance=47' 21010+3959 A 1438 distance=47' 20590+3945 SEI1349 distance=47' 21031+3959 LDS2483AB distance=48' 20587+3942 BKO 477 distance=48' 20596+3953 SEI1358 distance=49' 20578+3923 BKO 475 distance=50' 20591+3950 BKO 479 distance=50' 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 21020+3914 LV 9 195 2.3
Show 21018+3916 STF2746 323 1.2 3
Show 21023+3931 H 4 113 AB 299 18.9 17
Show 21023+3931 H 4 113 AC 248 26.7 17
Show 21023+3931 SMY 6 AE 87 95.7 17
Show 21023+3931 WRD 4 AF 223 101.8 17
Show 21023+3931 SMY 6 AD 141 57.0 17
Show 21023+3931 WRD 4 AG 230 95.0 17
Show 21023+3931 FYM 114 AI 277 41.1 17
Show 21023+3931 WRD 4 ED 230 77.7 18
Show 21023+3931 WRD 4 EH 159 37.4 18
Show 21015+3855 SEI1371 147 11.2 21
Show 21009+3900 SEI1365 263 18.4 21
Show 21037+3857 TDT2720 214 0.5 26
Show 21042+3924 SEI1389 61 18.2 27
Show 21013+3846 ES 2057 258 5.0 29
Show 21008+3940 SEI1364 114 12.1 30
Show 20595+3923 SEI1357 93 14.4 31
Show 21040+3854 TDT2723 122 2.6 31
Show 21025+3844 SEI1374 104 17.0 32
Show 21047+3908 SEI1393 132 25.7 32
Show 21029+3946 SEI1379 7 19.4 33
Show 20593+3924 TOB 207 228 22.0 33
Show 20593+3925 SEI1353 113 17.5 34
Show 21014+3948 SEI1370 141 20.7 35
Show 21051+3914 ES 1987 354 7.0 36
Show 21012+3949 SEI1369 309 4.5 36
Show 21037+3842 SEI1384 95 26.4 38
Show 20591+3932 TOB 205 203 14.5 39
Show 20589+3931 SEI1348 295 26.4 40
Show 20587+3922 BKO 478 75 7.9 40
Show 20592+3941 SEI1351 AB 256 17.5 43
Show 20592+3941 TOB 206 AC 71 38.4 43
Show 20586+3856 SEI1341 209 29.5 44
Show 20583+3904 SEI1340 199 10.2 44
Show 21054+3937 CRB 137 352 29.3 46
Show 20591+3944 BKO 480 236 11.1 46
Show 21058+3929 A 2691 CD 275 6.4 46
Show 21058+3929 A 2691 AB 217 2.7 46
Show 21058+3929 A 2691 AC 313 27.4 46
Show 20580+3918 ES 1985 AB 276 8.4 47
Show 20580+3918 SEI1338 AC 277 32.7 47
Show 20592+3946 BKO 481 204 11.5 47
Show 20580+3918 BKO 476 BD 246 6.0 47
Show 21010+3959 A 1438 257 0.3 47
Show 20590+3945 SEI1349 160 27.9 47
Show 21031+3959 LDS2483 AB 41 30.6 48
Show 20587+3942 BKO 477 8 7.6 48
Show 20596+3953 SEI1358 273 30.9 49
Show 20578+3923 BKO 475 265 5.5 50
Show 20591+3950 BKO 479 9 12.4 50

 
 
WDS 21020+3914 : COMPONENTS
 
 
  A
B pa=191.6°
sep=2.25"
 
 
21020+3914 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 210202.12+391405.2 Mag 10.47 PmRA -3.00
PmDE -14.0 Tycho2 3168-01332-1
Tycho2
Tycho2 3168-01332-1 Pflag RAmdeg 315.50885289 DEmdeg 39.23477345
PmRA -7.3 PmDE 0.8 E RAmdeg 24 E DEmdeg 21
E pmRA 2.0 E pmDE 2.1 EpRAm 1989.04 EpDEm 1989.08
Num 4 Q RAmdeg 2.2 Q DEmdeg 6.9 Q pmRA 2.2
Q pmDE 6.8 BTmag 10.980 E BTmag 0.044 VTmag 10.473
E VTmag 0.039 Prox 22 TYC T HIP
CCDM RAdeg 315.50888500 DEdeg 39.23479917 EpRA 1990 1.59
EpDE 1990 1.70 E RAdeg 25.9 E DEdeg 24.4 Posflg D
Corr -0.1
 
 
21020+3914 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 210202.08+391403.0 Mag 11.65 PmRA -4.00
PmDE -13.0 Calc delta mag 1.18 Calc coord yes