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Doubles in session


Current system
20090+4045
HJ 1487 AB


Nearby doubles
8' : 20097+4046
BRT2254

23' : 20110+4041
KPP1897

24' : 20111+4048
TDT2057

36' : 20096+4009
COU2414

37' : 20073+4013
BRT2252

42' : 20055+4037
WFC 228

45' : 20052+4044
A 381

47' : 20097+4130
HDS2871

48' : 20107+4001
TDS1048

48' : 20111+4131
HJ 1491

49' : 20133+4038
GRV 324

52' : 20136+4040
TDT2104

54' : 20137+4050
DOO 13

55' : 20099+3951
ALI1135

55' : 20053+4011
TDT1959

56' : 20138+4055
TDT2106

58' : 20079+3949
STJ 83

61' : 20144+4048
TDT2113

63' : 20045+4116
HJ 1475

64' : 20034+4044
DAM1458

65' : 20097+4149
TDT2037

67' : 20148+4035
TDT2118

68' : 20144+4112
TDT2112

68' : 20143+4115
COU2639

69' : 20085+3936
MLB 768

70' : 20069+3938
ES 1971



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.

20090+4045 HJ 1487 AB

 
 
20h 09m 03.33s +40° 44' 08.1" P.A. 298.00 sep 14.3 mag 10.60,13.60 Sp M4
 
 
Coord 2000 20090+4045 Discov num HJ 1487 Comp AB Coord arcsec 2000 20 09 03.33 +40 44 08.1
Date first 1828 Date last 2015 Obs 9
Pa first 290 Pa last 297.5 P.A. Now (θ) 297.5°
Sep first 6.0 Sep last 14.306 Sep. Now (ρ) 14.306"
Mag pri 10.60 Mag sec 13.60 delta mag (ΔM) 3 Spectral class M4 (red)
Pri motion ra +001 Sec motion ra -006
Pri motion dec -007 Sec motion dec -001
Notes
rPM=1.304
This double is not physical.
 
 
20090+4045 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 09 03 +40 44 08 HJ 1487 AB 2015 9 298 14.3 10.60 13.60 3.00 <===
Show 20 09 03 +40 44 08 OPI 9003 AC 2015 11 195 60.1 10.60 11.30 0.70
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 2074501399046302720
 
 
WDS 20090+4045 HJ 1487 AB : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma Unpublished, manuscript or reference not found.
Opi1927 Ma - Opik, E. 1927PTarO..26e...1O
Opi1927 Pub. Tartu Obs. 26, #5, 1927
Opi1932 Ma - Opik, E. 1932PTarO..27e...1O
Opi1932 Pub. Tartu Obs. 27, #5, 1932
Opi1932B - Opik, E. 1932QB821.A43......
Opi1932B 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
20090+4045 HJ 1487 AB 2006 4 298 14.3 10.60 13.60 M4 200903.33+404408.1
20090+4045 HJ 1487 AB 2015 5 298 14.3 10.60 13.60 M4 200903.33+404408.1

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

 
 
WDS 20090+4045 HJ 1487 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20090+4045 HJ 1487 AB : MEASURES
 
 
No records found.

 
 
WDS 20090+4045 : VIRTUAL EYEPIECE
 
 

20090+4045 HJ 1487A mag 10.6 Sp M4 20090+4045 HJ 1487B sep 11.7 P.A. 304.50 mag 13.6 20090+4045 OPI9003C sep 59.2 P.A. 191.70 mag 11.3 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 20090+4045 : ALADIN DSS IMAGE @ 20h 09m 03.33s +40° 44' 08.1"
 
 
 
 
WDS 20090+4045 HJ 1487 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20090+4045 HJ 1487AB distance=0' 20097+4046 BRT2254 distance=8' 20110+4041 KPP1897 distance=23' 20111+4048 TDT2057 distance=24' 20096+4009 COU2414 distance=36' 20073+4013 BRT2252 distance=37' 20055+4037 WFC 228 distance=42' 20052+4044 A 381 distance=45' 20097+4130 HDS2871 distance=47' 20107+4001 TDS1048 distance=48' 20111+4131 HJ 1491 distance=48' 20133+4038 GRV 324 distance=49' 20136+4040 TDT2104 distance=52' 20137+4050 DOO 13 distance=54' 20099+3951 ALI1135 distance=55' 20053+4011 TDT1959 distance=55' 20138+4055 TDT2106 distance=56' 20079+3949 STJ 83 distance=58' 20144+4048 TDT2113 distance=61' 20045+4116 HJ 1475 distance=63' 20034+4044 DAM1458 distance=64' 20097+4149 TDT2037 distance=65' 20148+4035 TDT2118 distance=67' 20144+4112 TDT2112 distance=68' 20143+4115 COU2639 distance=68' 20085+3936 MLB 768 distance=69' 20069+3938 ES 1971 distance=70' 20033+4116 KPP4183 distance=73' 20041+3957 COU2534 distance=74' 20027+4102 TDT1931 distance=74' 20155+4030 A 390 distance=75' 20124+3940 TDT2083 distance=75' 20118+3936 COU2415AB distance=75' 20118+3936 ES 1973AB,C distance=75' 20121+3938 SEI 997 distance=75' 20031+4118 TDT1936 distance=76' 20151+4118 A 387CD distance=77' 20099+4200 CVR 219 distance=77' 20151+4118 A 387AB distance=77' 20151+4118 A 387AC distance=77' 20093+3926 TDT2028 distance=79' 20044+3947 ALI1133 distance=79' 20081+3926 ES 1972 distance=79' 20026+4044 POP 171 distance=79' 20056+3935 COU2535 distance=80' 20158+4024 TDS1055 distance=80' 20080+4204 A 383 distance=81' 20019+4052 STTA196AB distance=83' 20019+4052 STTA196AC distance=83' 20107+4208 COU2637 distance=86' 20026+3959 TDT1929 distance=87' 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 20090+4045 HJ 1487 AB 298 14.3
Show 20090+4045 OPI9003 AC 195 60.1
Show 20097+4046 BRT2254 72 3.6 8
Show 20110+4041 KPP1897 323 14.9 23
Show 20111+4048 TDT2057 14 1.3 24
Show 20096+4009 COU2414 159 0.3 36
Show 20073+4013 BRT2252 188 2.9 37
Show 20055+4037 WFC 228 167 13.7 42
Show 20052+4044 A 381 277 0.8 45
Show 20097+4130 HDS2871 228 0.2 47
Show 20107+4001 TDS1048 339 1.1 48
Show 20111+4131 HJ 1491 297 4.8 48
Show 20133+4038 GRV 324 252 7.7 49
Show 20136+4040 TDT2104 161 0.9 52
Show 20137+4050 DOO 13 258 3.0 54
Show 20099+3951 ALI1135 200 13.1 55
Show 20053+4011 TDT1959 358 0.8 55
Show 20138+4055 TDT2106 358 0.5 56
Show 20079+3949 STJ 83 307 0.9 58
Show 20144+4048 TDT2113 181 0.5 61
Show 20045+4116 HJ 1475 274 8.6 63
Show 20034+4044 DAM1458 319 5.1 64
Show 20097+4149 TDT2037 21 2.8 65
Show 20148+4035 TDT2118 312 0.4 67
Show 20144+4112 TDT2112 64 0.6 68
Show 20143+4115 COU2639 244 0.4 68
Show 20085+3936 MLB 768 111 5.1 69
Show 20069+3938 ES 1971 291 3.3 70
Show 20033+4116 KPP4183 255 1.8 73
Show 20041+3957 COU2534 7 0.2 74
Show 20027+4102 TDT1931 209 2.3 74
Show 20155+4030 A 390 328 0.8 75
Show 20124+3940 TDT2083 350 1.1 75
Show 20118+3936 COU2415 AB 158 0.4 75
Show 20118+3936 ES 1973 AB,C 352 4.1 75
Show 20121+3938 SEI 997 146 10.3 75
Show 20031+4118 TDT1936 59 0.6 76
Show 20151+4118 A 387 CD 19 9.0 77
Show 20099+4200 CVR 219 210 113.2 77
Show 20151+4118 A 387 AB 151 5.1 77
Show 20151+4118 A 387 AC 222 21.6 77
Show 20093+3926 TDT2028 187 1.5 79
Show 20044+3947 ALI1133 346 13.1 79
Show 20081+3926 ES 1972 146 4.4 79
Show 20026+4044 POP 171 296 1.1 79
Show 20056+3935 COU2535 135 2.0 80
Show 20158+4024 TDS1055 163 0.9 80
Show 20080+4204 A 383 8 0.3 81
Show 20019+4052 STTA196 AB 169 53.7 83
Show 20019+4052 STTA196 AC 132 137.0 83
Show 20107+4208 COU2637 121 0.5 86

 
 
WDS 20090+4045 : COMPONENTS
 
 
  A B
B pa=304.5°
sep=11.67"
 
C pa=191.7°
sep=59.17"
pa=182.1°
sep=64.59"
 
 
20090+4045 A
 
 
Coord arcsec 2000 200903.33+404408.1 Mag 10.6 Spectral class M4 (red) PmRA 1.00
PmDE -7.0
 
 
20090+4045 B
 
 
Coord arcsec 2000 200902.48+404414.7 Mag 13.6 PmRA -6.00 PmDE -1.0
Calc delta mag 3 Calc coord yes
 
 
20090+4045 C
 
 
Coord arcsec 2000 200902.27+404310.2 Mag 11.3 PmRA -1.00 PmDE -8.0
Tycho2 3154-00367-1 Calc delta mag 0.7 Calc coord yes
Tycho2
Tycho2 3154-00367-1 Pflag RAmdeg 302.25812200 DEmdeg 40.71952867
PmRA -0.6 PmDE -7.8 E RAmdeg 34 E DEmdeg 33
E pmRA 1.5 E pmDE 1.4 EpRAm 1981.59 EpDEm 1981.15
Num 5 Q RAmdeg 0.8 Q DEmdeg 0.8 Q pmRA 0.8
Q pmDE 0.8 BTmag 11.776 E BTmag 0.080 VTmag 11.370
E VTmag 0.094 Prox 600 TYC T HIP
CCDM RAdeg 302.25812000 DEdeg 40.71955500 EpRA 1990 1.65
EpDE 1990 1.73 E RAdeg 56.1 E DEdeg 54.3 Posflg
Corr 0.1