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Doubles in session


Current system
21278-3900
WG 271
HD 204165


Nearby doubles
10' : 21285-3906
WG 272

17' : 21276-3843
KPP1399

21' : 21293-3850
I 133

28' : 21257-3913
SEE 445

41' : 21307-3838
B 530AB

51' : 21315-3834
I 1123AB

58' : 21251-3812
RST5478

62' : 21263-3801
B 2494

67' : 21237-3947
SKF1173

76' : 21241-4002
UC 4465

79' : 21221-3818
HDS3042

82' : 21232-3800
LDS 741

84' : 21208-3847
CVN 110AB

89' : 21322-4012
LDS 748

90' : 21339-3806
B 2496

94' : 21265-3728
KPP 623

100' : 21236-3734
TDT2941

100' : 21196-3929
I 1438

100' : 21359-3829
WG 274

103' : 21360-3824
RST2180

104' : 21213-4011
WG 270

108' : 21243-4040
CRU9020

110' : 21187-3835
NSN 467

111' : 21220-3733
B 525

119' : 21176-3914
SEE 442

121' : 21318-3709
B 1896



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.

21278-3900 WG 271 (HD 204165)

 
 
21h 27m 48.22s -38° 59' 54.5" P.A. 121.00 sep 4.1 mag 9.77,10.03 Sp F3V: dist. 274.73 pc (896.17 l.y.)
 
 
Coord 2000 21278-3900 Discov num WG  271 Comp Coord arcsec 2000 21 27 48.22 -38 59 54.5
Date first 1904 Date last 2016 Obs 15
Pa first 123 Pa last 120.8 P.A. Now (θ) 120.8°
Sep first 4.3 Sep last 4.111 Sep. Now (ρ) 4.111"
Mag pri 9.77 Mag sec 10.03 delta mag (ΔM) 0.26 Spectral class F3V: (yellow-white)
Pri motion ra +029 Sec motion ra +028
Pri motion dec +013 Sec motion dec +016
Notes
rPM=0.098 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 204165 Constellation Microscopium HIP 105977 Tycho2 7979-00273-1
Gaia DR2 6582701249921936384 HD 204165 CD CD-3914258 CP CP-39 8949
Distance 274.73 Distance ly 896.17
 
 
WDS 21278-3900 WG 271 (HD 204165) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Wg_1911a Ma - Wrigley, R.W. 1911MNRAS..71..479W
Wg_1911a MNRAS 71, 479, 1911
Wg_1911 Pa j Wrigley, R.W. 1911MNRAS..72...34W
Wg_1911 MNRAS 72, 34, 1911
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21278-3900 WG 271 1999 11 121 4.1 9.77 10.03 F3V: D 212748.22-385954.5
21278-3900 WG 271 2015 13 121 4.1 9.77 10.03 F3V: 212748.22-385954.5
21278-3900 WG 271 2016 15 121 4.1 9.77 10.03 F3V: 212748.22-385954.5

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

 
 
WDS 21278-3900 WG 271 (HD 204165) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21278-3900 WG 271 (HD 204165) : MEASURES
 
 
No records found.

 
 
WDS 21278-3900 (HD 204165) : VIRTUAL EYEPIECE
 
 

21278-3900 WG 271A mag 9.77 Sp F3V: 21278-3900 WG 271B sep 3.5 P.A. 127.50 mag 10.03 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 21278-3900 (HD 204165) : ALADIN DSS IMAGE @ 21h 27m 48.22s -38° 59' 54.5"
 
 
 
 
WDS 21278-3900 WG 271 (HD 204165) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21278-3900 WG 271 distance=0' 21285-3906 WG 272 distance=10' 21276-3843 KPP1399 distance=17' 21293-3850 I 133 distance=21' 21257-3913 SEE 445 distance=28' 21307-3838 B 530AB distance=41' 21307-3838 B 530AC distance=41' 21315-3834 I 1123AB distance=51' 21315-3834 TOK 347AC distance=51' 21251-3812 RST5478 distance=58' 21263-3801 B 2494 distance=62' 21237-3947 SKF1173 distance=67' 21241-4002 UC 4465 distance=76' 21221-3818 HDS3042 distance=79' 21232-3800 LDS 741 distance=82' 21208-3847 CVN 110AB distance=84' 21322-4012 LDS 748 distance=89' 21339-3806 B 2496 distance=90' 21265-3728 KPP 623 distance=94' 21236-3734 TDT2941 distance=100' 21196-3929 I 1438 distance=100' 21359-3829 WG 274 distance=100' 21360-3824 RST2180 distance=103' 21213-4011 WG 270 distance=104' 21243-4040 CRU9020 distance=108' 21187-3835 NSN 467 distance=110' 21220-3733 B 525 distance=111' 21176-3914 SEE 442 distance=119' 21318-3709 B 1896 distance=121' 21271-3700 BRT1820 distance=121' 21339-4040 CRU9021 distance=122' 21178-3945 CRU9019AB distance=125' 21178-3945 CRU9019AC distance=125' 21261-4103 RST2177 distance=126' 21178-3945 TDT2890Ba,Bb distance=126' 21244-4100 BU 766AB distance=127' 21244-4100 BU 766AC distance=127' 21383-3827 RST2182 distance=127' 21326-4059 UC 4491 distance=132' 21163-3845 LDS 737 distance=135' 21208-4049 HDS3039 distance=136' 21353-4044 CRU9022 distance=136' 21393-3828 HJ 5283 distance=138' 21232-3653 SUB 9 distance=139' 21398-3916 WG 275 distance=140' 21367-4036 RST2181 distance=141' 21364-4041 I 1444 distance=142' 21156-3927 HJ 5254A,BC distance=145' 21156-3927 B 521BC distance=145' 21292-4125 RVA 1BC distance=146' 21292-4125 HJ 5272AB distance=146' 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 21278-3900 WG 271 121 4.1
Show 21285-3906 WG 272 85 7.5 10
Show 21276-3843 KPP1399 345 10.5 17
Show 21293-3850 I 133 26 7.2 21
Show 21257-3913 SEE 445 216 2.3 28
Show 21307-3838 B 530 AB 44 0.9 41
Show 21307-3838 B 530 AC 275 48.0 41
Show 21315-3834 I 1123 AB 343 5.0 51
Show 21315-3834 TOK 347 AC 208 235.4 51
Show 21251-3812 RST5478 126 1.4 58
Show 21263-3801 B 2494 324 8.2 62
Show 21237-3947 SKF1173 153 94.0 67
Show 21241-4002 UC 4465 50 38.1 76
Show 21221-3818 HDS3042 126 0.2 79
Show 21232-3800 LDS 741 290 8.9 82
Show 21208-3847 CVN 110 AB 25 7.0 84
Show 21322-4012 LDS 748 156 27.3 89
Show 21339-3806 B 2496 127 1.0 90
Show 21265-3728 KPP 623 60 5.7 94
Show 21236-3734 TDT2941 97 0.4 100
Show 21196-3929 I 1438 57 3.8 100
Show 21359-3829 WG 274 197 9.1 100
Show 21360-3824 RST2180 346 1.3 103
Show 21213-4011 WG 270 52 4.8 104
Show 21243-4040 CRU9020 52 38.1 108
Show 21187-3835 NSN 467 290 36.2 110
Show 21220-3733 B 525 171 0.9 111
Show 21176-3914 SEE 442 40 4.9 119
Show 21318-3709 B 1896 53 0.2 121
Show 21271-3700 BRT1820 99 4.0 121
Show 21339-4040 CRU9021 31 47.4 122
Show 21178-3945 CRU9019 AB 230 117.1 125
Show 21178-3945 CRU9019 AC 62 62.8 125
Show 21261-4103 RST2177 334 2.5 126
Show 21178-3945 TDT2890 Ba,Bb 252 0.5 126
Show 21244-4100 BU 766 AB 169 0.3 127
Show 21244-4100 BU 766 AC 65 79.1 127
Show 21383-3827 RST2182 100 0.8 127
Show 21326-4059 UC 4491 216 45.3 132
Show 21163-3845 LDS 737 157 7.2 135
Show 21208-4049 HDS3039 13 0.2 136
Show 21353-4044 CRU9022 118 62.9 136
Show 21393-3828 HJ 5283 91 11.6 138
Show 21232-3653 SUB 9 168 49.6 139
Show 21398-3916 WG 275 44 2.9 140
Show 21367-4036 RST2181 340 0.3 141
Show 21364-4041 I 1444 125 0.2 142
Show 21156-3927 HJ 5254 A,BC 191 57.8 145
Show 21156-3927 B 521 BC 50 0.5 145
Show 21292-4125 RVA 1 BC 331 2.7 146
Show 21292-4125 HJ 5272 AB 304 21.9 146

 
 
WDS 21278-3900 : COMPONENTS
 
 
  A
B pa=127.5°
sep=3.46"
 
 
21278-3900 A
 
 
Componente originario normalizzato AB Name HD 204165 Coord arcsec 2000 212748.22-385954.5 Mag 9.77
Spectral class F3V: (yellow-white) PmRA 29.00 PmDE 13.0 HIP 105977
Tycho2 7979-00273-1 HD 204165 CD CD-3914258 CP CP-39 8949
Tycho2
Tycho2 7979-00273-1 Pflag RAmdeg 321.95091511 DEmdeg -38.99847159
PmRA 31.4 PmDE 12.1 E RAmdeg 18 E DEmdeg 24
E pmRA 2.0 E pmDE 2.0 EpRAm 1990.96 EpDEm 1990.15
Num 4 Q RAmdeg 1.6 Q DEmdeg 0.5 Q pmRA 1.7
Q pmDE 0.4 BTmag 10.251 E BTmag 0.035 VTmag 9.771
E VTmag 0.032 Prox 42 TYC T HIP 105977
CCDM A RAdeg 321.95082417 DEdeg -38.99849889 EpRA 1990 1.89
EpDE 1990 1.93 E RAdeg 17.5 E DEdeg 24.2 Posflg D
Corr -0.1
Hipparcos
Catalog H HIP 105977 Proxy H RAhms 21 27 48.20
DEdms -38 59 54.6 Vmag 9.07 VarFlag R Vmag H
RAdeg 321.951 DEdeg -38.9985 AstroRef A Plx 7.2
CCDM 21278-3900 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 121 Rho 4.104 HD 204165 BD
CD CD-3914258 CP CP-39 8949 Dm number -3914258 VIred 0.57
SpType F3V: R SpType Coord arcsec 2000 212748.20-385954.6
Hipparcos 2
HIP 105977 Sn 15 So 3 Nc 2
RArad 5.6191019922 DErad -0.6806523483 Plx 3.64 PmRA 32.86
PmDE 14.42 E RArad 1.94 E DErad 1.18 E Plx 2.02
E pmRA 2.7 E pmDE 1.1 Hpmag 9.1802 E Hpmag 0.0025
SHp 0.017 VA 0 BV 0 E BV 0
VI 0
CCDM
Ccdm 21278-3900 RComp Comp A Note1
Note2 Discov num DRAs 0.08 DDEs 4.9
R dRAs 36 Year Theta Rho
Obs 2 Vmag 9.4 Sp F0 PmNote
PmRA PmDE Dm number -3914258 Cat1 CD
Name2 Cat2 HD 204165 M HD
ADS BDS M ADS BDS N IDS IDS 21215S3926A
HIC 105977
 
 
21278-3900 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212748.46-385956.6 Mag 10.03 PmRA 28.00
PmDE 16.0 HIP 105977 Tycho2 7979-00273-2 Calc delta mag 0.26
Calc coord yes
Tycho2
Tycho2 7979-00273-2 Pflag RAmdeg 321.95217552 DEmdeg -38.99906112
PmRA 27.3 PmDE 16.1 E RAmdeg 18 E DEmdeg 26
E pmRA 2.1 E pmDE 2.0 EpRAm 1991.06 EpDEm 1989.96
Num 3 Q RAmdeg 0.9 Q DEmdeg 0.5 Q pmRA 1.0
Q pmDE 0.5 BTmag 10.318 E BTmag 0.034 VTmag 10.029
E VTmag 0.038 Prox 42 TYC HIP 105977
CCDM B RAdeg 321.95209667 DEdeg -38.99909722 EpRA 1990 1.90
EpDE 1990 1.93 E RAdeg 18.4 E DEdeg 25.5 Posflg
Corr -0.2
Hipparcos
Catalog H HIP 105977 Proxy H RAhms 21 27 48.20
DEdms -38 59 54.6 Vmag 9.07 VarFlag R Vmag H
RAdeg 321.951 DEdeg -38.9985 AstroRef A Plx 7.2
CCDM 21278-3900 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 121 Rho 4.104 HD 204165 BD
CD CD-3914258 CP CP-39 8949 Dm number -3914258 VIred 0.57
SpType F3V: R SpType Coord arcsec 2000 212748.20-385954.6
Hipparcos 2
HIP 105977 Sn 15 So 3 Nc 2
RArad 5.6191019922 DErad -0.6806523483 Plx 3.64 PmRA 32.86
PmDE 14.42 E RArad 1.94 E DErad 1.18 E Plx 2.02
E pmRA 2.7 E pmDE 1.1 Hpmag 9.1802 E Hpmag 0.0025
SHp 0.017 VA 0 BV 0 E BV 0
VI 0
CCDM
Ccdm 21278-3900 RComp Comp B Note1
Note2 Discov num WG 271 DRAs DDEs
R dRAs Year 1951 Theta 120 Rho 3.9
Obs 6 Vmag 9.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21215S3926B
HIC 105977