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Doubles in session


Current system
20484+4002
SEI 1255 AB


Nearby doubles
3' : 20486+4000
TOB 198

5' : 20481+3958
CVR 231

17' : 20490+3947
STF2731AB

18' : 20498+3958
SEI1267

19' : 20478+3944
GRV 381

23' : 20488+4024
ALI1192

29' : 20466+4020
ES 1982

35' : 20456+4014
TDT2519

36' : 20454+4011
TDT2518

37' : 20495+4035
COU2426

37' : 20453+4010
COU2293

38' : 20476+4038
CNT 9

38' : 20490+3925
TDT2560

39' : 20514+3945
MLB 779AB

40' : 20485+4041
ES 1682

41' : 20493+3923
SEI1263AB

41' : 20515+3944
DAM 317AB

41' : 20454+4023
OSO 133AB

44' : 20489+3919
TDT2558

44' : 20520+4009
MLB 955

45' : 20480+3917
A 1434AB

50' : 20514+3927
TDT2581

53' : 20444+4027
TDT2510

54' : 20526+4024
GRV 391

56' : 20457+3917
SEI1241

56' : 20510+3915
SEI1279AB



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.

20484+4002 SEI 1255 AB

 
 
20h 48m 22.62s +40° 01' 45.0" P.A. 338.00 sep 24.4 mag 11.40,12.40
 
 
Coord 2000 20484+4002 Discov num SEI1255 Comp AB Coord arcsec 2000 20 48 22.62 +40 01 45.0
Date first 1892 Date last 2015 Obs 12
Pa first 338 Pa last 338.2 P.A. Now (θ) 338.2°
Sep first 23.3 Sep last 24.379 Sep. Now (ρ) 24.379"
Mag pri 11.40 Mag sec 12.40 delta mag (ΔM) 1 Spectral class
Pri motion ra -005 Sec motion ra -004
Pri motion dec -018 Sec motion dec -011
Notes N (See Notes)
rPM=0.379
Nature of this double is uncertain.
 
 
20484+4002 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 48 23 +40 01 45 SEI 1255 AB 2015 12 338 24.4 11.40 12.40 1.00 <===
Show 20 48 22 +40 02 08 J 1237 BC 2015 8 355 5.6 12.40 13.70 1.30
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3170-01326-1 Gaia DR2 2065038044208085248
 
 
WDS 20484+4002 SEI 1255 AB : NOTES
 
 
discov_num notes refcode
SEI1255 AB: Also known as J 1237AB.
 
 
REFERENCES
 
 
refcode metd author reference
J__1908 Ma - Jonckheere, R. 1908BuAsI..25..458J
J__1908 Bull. Astronomique 25, 458, 1908
J__1909a Ma - Jonckheere, R. ...................
J__1909a Journal Astronomique 1, no. 1, 1, 1909
J__1909b Ma - Jonckheere, R. ...................
J__1909b Journal Astronomique 1, no. 2, 1909
J__1909c Ma - Jonckheere, R. ...................
J__1909c Journal Astronomique 1, no. 3, 1909
J__1910a Ma j Jonckheere, R. ...................
J__1910a Journal Astronomique 1, no. 4, 25, 1910
J__1910b Ma - Jonckheere, R. ...................
J__1910b Journal Astronomique 1, no. 5, 1910
J__1910c Ma j Jonckheere, R. ...................
J__1910c Journal Astronomique 1, no. 7, 1910
J__1910d Ma - Jonckheere, R. ...................
J__1910d Journal Astronomique 1, no. 7, 1910
J__1910e Ma j Jonckheere, R. ...................
J__1910e Journal Astronomique 1, no. 7, 1910
J__1910f Ma j Jonckheere, R. ...................
J__1910f Journal Astronomique 1, no. 10, 77, 1910
J__1910g Ma - Jonckheere, R. ...................
J__1910g Journal Astronomique 1, no. 11, 81, 1910
J__1910h Ma j Jonckheere, R. ...................
J__1910h Journal Astronomique 1, no. 12, 89, 1910
J__1910i Ma j Jonckheere, R. ...................
J__1910i Journal Astronomique 1, no. 13, 98, 1910
J__1911a Ma - Jonckheere, R. ...................
J__1911a Journal Astronomique 1, no. 15, 114, 1911
J__1911b Ma j Jonckheere, R. ...................
J__1911b Journal Astronomique 1, no. 16, 121, 1911
J__1911c Ma j Jonckheere, R. 1911MNRAS..71..750J
J__1911c MNRAS 71, 750, 1911
J__1911d Ma - Jonckheere, R. 1911MNRAS..72...45J
J__1911d MNRAS 72, 45, 1911
J__1911e Ma - Jonckheere, R. 1911MNRAS..72..156J
J__1911e MNRAS 72, 156, 1911
J__1911f Ma j Jonckheere, R. 1911MNRAS..72..162J
J__1911f MNRAS 72, 162, 1911
J__1912a Ma j Jonckheere, R. 1912MNRAS..72..188J
J__1912a MNRAS 72, 188, 1912
J__1912b Ma j Jonckheere, R. ...................
J__1912b Journal Astronomique 1, no. 17, 129, 1912
J__1912c Ma - Jonckheere, R. ...................
J__1912c Journal Astronomique 1, no. 19, 134, 1912
J__1912d Ma j Jonckheere, R. ...................
J__1912d Journal Astronomique 1, no. 21, 145, 1912
J__1912e Ma - Jonckheere, R. ...................
J__1912e Journal Astronomique 1, no. 22, 148, 1912
J__1912f Ma j Jonckheere, R. ...................
J__1912f Journal Astronomique 1, no. 23, 150, 1912
J__1912g Ma j Jonckheere, R. ...................
J__1912g Journal Astronomique 2, no. 25, 1, 1912
J__1912h Ma - Jonckheere, R. ...................
J__1912h Journal Astronomique 2, no. 26, 5, 1912
J__1913a Ma j Jonckheere, R. ...................
J__1913a Journal Astronomique 2, no. 27, 9, 1913
J__1913b Ma j Jonckheere, R. ...................
J__1913b Journal Astronomique 2, no. 28, 13, 1913
J__1914 Ma - Jonckheere, R. ...................
J__1914 Journal Astronomique 2, no. 29, 18, 1914
J__1917a Ma - Jonckheere, R. 1917MmRAS..61....1J
J__1917a MemRAS 61, 1, 1917
J__1917c Ma j Jonckheere, R. 1917AJ.....31....1J
J__1917c AJ 31, 1, 1917
J__1918 Ma - Jonckheere, R. 1918AJ.....31..113J
J__1918 AJ 31, 113, 1918
J__1918b Ma j Jonckheere, R. 1918MNRAS..78..479J
J__1918b MNRAS 78, 479, 1918
J__1919 Ma j Jonckheere, R. 1919AJ.....32...65J
J__1919 AJ 32, 65, 1919
J__1920 Ma - Jonckheere, R. 1920AJ.....32..166J
J__1920 AJ 32, 166, 1920
J__1924 Ma - Jonckheere, R. 1924AJ.....35..173J
J__1924 +Mb AJ 35, 173, 1924
J__1930 Ma j Jonckheere, R. 1930JO.....13...76J
J__1930 J. Obs. 13, 76, 1930
J__1941a Ma - Jonckheere, R. 1941JO.....24...21J
J__1941a J. Obs. 24, 21, 1941
J__1941b Ma - Jonckheere, R. 1941JO.....24...69J
J__1941b +Mb J. Obs. 24, 69, 1941
J__1941c Ma - Jonckheere, R. 1941JO.....24...93J
J__1941c +Mb J. Obs. 24, 93, 1941
J__1941d Ma - Jonckheere, R. 1941JO.....24..114J
J__1941d +Mb J. Obs. 24, 114, 1941
J__1942a Ma - Jonckheere, R. 1942JO.....25...11J
J__1942a J. Obs. 25, 11, 1942
J__1942b Ma - Jonckheere, R. 1942JO.....25...15J
J__1942b J. Obs. 25, 15, 1942
J__1942c Ma - Jonckheere, R. 1942JO.....25...25J
J__1942c +Mb J. Obs. 25, 25, 1942
J__1942d Mb - Jonckheere, R. 1942JO.....25...78J
J__1942d J. Obs. 25, 78, 1942
J__1943 Ma - Jonckheere, R. 1943JO.....26...28J
J__1943 +Mb J. Obs. 26, 28, 1943
J__1944a Ma j Jonckheere, R. 1944JO.....27....1J
J__1944a +Mb J. Obs. 27, 1, 1944
J__1944b Ma - Jonckheere, R. 1944JO.....27....5J
J__1944b J. Obs. 27, 5, 1944
J__1944c Mb - Jonckheere, R. 1944JO.....27....6J
J__1944c J. Obs. 27, 6, 1944
J__1944d Ma j Jonckheere, R. 1944JO.....27....7J
J__1944d +Mb J. Obs. 27, 7, 1944
J__1944e Ma - Jonckheere, R. 1944JO.....27...11J
J__1944e J. Obs. 27, 11, 1944
J__1945 Ma - Jonckheere, R. 1945JO.....28...26J
J__1945 +Mb J. Obs. 28, 26, 1945
J__1946 Mb j Jonckheere, R. 1946JO.....29...49J
J__1946 J. Obs. 29, 49, 1946
J__1948 Ma j Jonckheere, R. 1948JO.....31...65J
J__1948 J. Obs. 31, 65, 1948
J__1949a Ma j Jonckheere, R. 1949JO.....32...13J
J__1949a +Mb J. Obs. 32, 13, 1949
J__1949b Ma j Jonckheere, R. 1949JO.....32...81J
J__1949b +Mb J. Obs. 32, 81, 1949
J__1952 M+ j Jonckheere, R. 1952JO.....35...37J
J__1952 +Pa J. Obs. 35, 37, 1952
J__1953a Ma - Jonckheere, R. 1953JO.....36...44J
J__1953a J. Obs. 36, 44, 1953
J__1953b Mb j Jonckheere, R. 1953JO.....36...49J
J__1953b J. Obs. 36, 49, 1953
J__1954 Mb j Jonckheere, R. 1954JO.....37...13J
J__1954 J. Obs. 37, 13, 1954
J__1955 Mb - Jonckheere, R. 1955JO.....38..254J
J__1955 J. Obs. 38, 254, 1955
J__1957 Mb j Jonckheere, R. 1957JO.....40....1J
J__1957 J. Obs. 40, 1, 1957
J__1958 Mb j Jonckheere, R. 1958JO.....41..145J
J__1958 J. Obs. 41, 145, 1958
J__1962a M+ j Jonckheere, R. 1962QB821.J64......
J__1962a +Pa General Cat. of Double Stars, Marseille, 1962
J__1962b Ma - Jonckheere, R. (measure by Vanderdonck, J.) 1962QB821.J64......
J__1962b General Cat. of Double Stars, Marseille, 1962
J__1963A - Jonckheere, R. 1963icvd.book.....J
J__1963A cited in IDS (Lick Index Cat.), 1963
J__9999 Ma - Jonckheere, R. ...................
J__9999 +Pp Unpublished, manuscript or reference not found.
Sei1908 Pa - Scheiner, J. 1908POPot..59.....S
Sei1908 +Po Pub. Obs. Potsdam 20, #59, 1908
Sei1913A Pa - Scheiner, J. 1913QB811.B8.......
Sei1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A Pa - Scheiner, J. 1932QB821.A43......
Sei1932A 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
20484+4002 SEI1255 AB 1998 6 338 24.3 10.87 11.92 N D 204822.62+400145.0
20484+4002 SEI1255 AB 2008 7 338 24.2 10.87 11.92 N D 204822.62+400145.0
20484+4002 SEI1255 AB 2015 9 338 24.4 11.40 12.40 N 204822.62+400145.0

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

 
 
WDS 20484+4002 SEI 1255 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20484+4002 SEI 1255 AB : MEASURES
 
 
No records found.

 
 
WDS 20484+4002 : VIRTUAL EYEPIECE
 
 

20484+4002 SEI1255A mag 11.4 20484+4002 J 1237B sep 24.3 P.A. 338.00 mag 12.4 20484+4002 J 1237C sep 29.6 P.A. 341.40 mag 13.7 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 20484+4002 : ALADIN DSS IMAGE @ 20h 48m 22.62s +40° 01' 45.0"
 
 
 
 
WDS 20484+4002 SEI 1255 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20484+4002 SEI1255AB distance=0' 20484+4002 J 1237BC distance=1' 20486+4000 TOB 198 distance=3' 20481+3958 CVR 231 distance=5' 20490+3947 STF2731AB distance=17' 20490+3947 HO 596AC distance=17' 20490+3947 HO 596AD distance=17' 20498+3958 SEI1267 distance=18' 20478+3944 GRV 381 distance=19' 20488+4024 ALI1192 distance=23' 20466+4020 ES 1982 distance=29' 20456+4014 TDT2519 distance=35' 20454+4011 TDT2518 distance=36' 20495+4035 COU2426 distance=37' 20453+4010 COU2293 distance=37' 20476+4038 CNT 9 distance=38' 20490+3925 TDT2560 distance=38' 20514+3945 MLB 779AB distance=39' 20514+3945 DAM 316AC distance=39' 20514+3945 DAM 316AD distance=39' 20485+4041 ES 1682 distance=40' 20493+3923 SEI1263AB distance=41' 20515+3944 DAM 317AB distance=41' 20515+3944 DAM 317AC distance=41' 20493+3923 ALI 952BC distance=41' 20493+3923 DAM 26BD distance=41' 20454+4023 OSO 133AB distance=41' 20454+4023 OSO 133AC distance=41' 20454+4023 OSO 133AD distance=41' 20454+4023 OSO 133AE distance=41' 20489+3919 TDT2558 distance=44' 20520+4009 MLB 955 distance=44' 20480+3917 A 1434AB distance=45' 20480+3917 A 1434AB,C distance=45' 20514+3927 TDT2581 distance=50' 20444+4027 TDT2510 distance=53' 20526+4024 GRV 391 distance=54' 20457+3917 SEI1241 distance=56' 20510+3915 SEI1279AB distance=56' 20510+3915 SEI1279BC distance=56' 20434+4001 BRT2272 distance=58' 20440+4030 SLN 85 distance=58' 20446+4040 HJ 1573 distance=58' 20511+4051 TDT2578 distance=58' 20446+4041 HJ 1574 distance=58' 20436+4024 DAM1256 distance=59' 20531+3940 SEI1292 distance=59' 20434+3943 TDT2497 distance=60' 20441+3927 ES 1981 distance=61' 20445+3921 HJ 1572 distance=61' 20528+3925 SEI1290 distance=63' 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 20484+4002 SEI1255 AB 338 24.4
Show 20484+4002 J 1237 BC 355 5.6 1
Show 20486+4000 TOB 198 96 21.0 3
Show 20481+3958 CVR 231 359 9.7 5
Show 20490+3947 STF2731 AB 86 4.1 17
Show 20490+3947 HO 596 AC 178 18.0 17
Show 20490+3947 HO 596 AD 247 18.2 17
Show 20498+3958 SEI1267 308 3.1 18
Show 20478+3944 GRV 381 340 35.8 19
Show 20488+4024 ALI1192 2 16.5 23
Show 20466+4020 ES 1982 301 3.9 29
Show 20456+4014 TDT2519 347 1.3 35
Show 20454+4011 TDT2518 203 0.7 36
Show 20495+4035 COU2426 328 1.2 37
Show 20453+4010 COU2293 201 1.1 37
Show 20476+4038 CNT 9 292 9.0 38
Show 20490+3925 TDT2560 38 1.1 38
Show 20514+3945 MLB 779 AB 124 9.0 39
Show 20514+3945 DAM 316 AC 79 6.3 39
Show 20514+3945 DAM 316 AD 304 13.8 39
Show 20485+4041 ES 1682 152 3.1 40
Show 20493+3923 SEI1263 AB 98 23.6 41
Show 20515+3944 DAM 317 AB 95 14.8 41
Show 20515+3944 DAM 317 AC 357 15.2 41
Show 20493+3923 ALI 952 BC 50 4.9 41
Show 20493+3923 DAM 26 BD 53 9.5 41
Show 20454+4023 OSO 133 AB 114 12.0 41
Show 20454+4023 OSO 133 AC 236 11.7 41
Show 20454+4023 OSO 133 AD 67 21.8 41
Show 20454+4023 OSO 133 AE 8 22.4 41
Show 20489+3919 TDT2558 191 1.1 44
Show 20520+4009 MLB 955 27 6.6 44
Show 20480+3917 A 1434 AB 178 0.0 45
Show 20480+3917 A 1434 AB,C 256 2.5 45
Show 20514+3927 TDT2581 146 0.8 50
Show 20444+4027 TDT2510 157 0.9 53
Show 20526+4024 GRV 391 144 59.5 54
Show 20457+3917 SEI1241 309 7.1 56
Show 20510+3915 SEI1279 AB 147 12.9 56
Show 20510+3915 SEI1279 BC 189 7.3 56
Show 20434+4001 BRT2272 285 5.1 58
Show 20440+4030 SLN 85 203 9.1 58
Show 20446+4040 HJ 1573 274 9.8 58
Show 20511+4051 TDT2578 81 2.6 58
Show 20446+4041 HJ 1574 278 7.4 58
Show 20436+4024 DAM1256 106 9.6 59
Show 20531+3940 SEI1292 205 24.8 59
Show 20434+3943 TDT2497 317 0.5 60
Show 20441+3927 ES 1981 310 4.5 61
Show 20445+3921 HJ 1572 280 15.6 61
Show 20528+3925 SEI1290 222 14.2 63

 
 
WDS 20484+4002 : COMPONENTS
 
 
  A B
B pa=338.0°
sep=24.26"
 
C pa=341.4°
sep=29.60"
pa=356.2°
sep=5.57"
 
 
20484+4002 A
 
 
Coord arcsec 2000 204822.62+400145.0 Mag 11.4 PmRA -5.00 PmDE -18.0
Tycho2 3170-01326-1
Tycho2
Tycho2 3170-01326-1 Pflag RAmdeg 312.09425841 DEmdeg 40.02917795
PmRA -5.4 PmDE -16.1 E RAmdeg 34 E DEmdeg 33
E pmRA 1.6 E pmDE 1.6 EpRAm 1986.63 EpDEm 1986.58
Num 4 Q RAmdeg 0.2 Q DEmdeg 0.9 Q pmRA 0.2
Q pmDE 0.9 BTmag 11.330 E BTmag 0.055 VTmag 10.987
E VTmag 0.058 Prox 943 TYC T HIP
CCDM RAdeg 312.09427500 DEdeg 40.02921472 EpRA 1990 1.56
EpDE 1990 1.69 E RAdeg 35.3 E DEdeg 34.4 Posflg
Corr 0.0
CCDM
Ccdm 20484+4002 RComp Comp A Note1
Note2 Discov num DRAs -1.43 DDEs -13.3
R dRAs 65 Year Theta Rho
Obs 3 Vmag 9.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14324 M ADS BDS N IDS IDS 20446N3941A
HIC
 
 
20484+4002 B
 
 
Coord arcsec 2000 204821.83+400207.5 Coord calc 204821.83+400207.5 Mag 12.4 PmRA -4.00
PmDE -11.0 Calc delta mag 1
CCDM
Ccdm 20484+4002 RComp Comp B Note1
Note2 Discov num SEI1255 DRAs -2.24 DDEs 10.8
R dRAs 65 Year 1915 Theta 336 Rho 21.8
Obs 2 Vmag 10.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14324 M ADS BDS N IDS IDS 20447N3940B
HIC
 
 
20484+4002 C
 
 
Coord arcsec 2000 204821.80+400213.1 Mag 13.7 PmRA 4.00 PmDE 26.0
Calc delta mag 2.3 Calc coord yes
CCDM
Ccdm 20484+4002 RComp B Comp C Note1
Note2 Discov num J 1237 DRAs DDEs
R dRAs Year 1915 Theta 336 Rho 3.9
Obs 1 Vmag 12.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14324 M ADS BDS N IDS IDS 20446N3941C
HIC