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Doubles in session


Current system
20500-3347
HJ 5224
Alp Mic


Nearby doubles
28' : 20521-3353
SEE 430

33' : 20501-3315
UC 4305

43' : 20467-3336
HDS2960AB

49' : 20517-3303
UC 4311

49' : 20521-3428
B 999

53' : 20510-3256
RST2162

53' : 20518-3434
B 504

59' : 20478-3255
WIS 343

68' : 20551-3408
HJ 5234

72' : 20525-3451
NSN 490

72' : 20529-3245
B 1000

75' : 20467-3245
RST2160

76' : 20458-3443
HJ 5219

83' : 20565-3340
B 1002

84' : 20556-3304
LDS6419

85' : 20543-3243
UC 4321AB

91' : 20570-3406
RST3272

94' : 20521-3517
RST3270

96' : 20431-3305
UC 4268

100' : 20518-3523
KPP1661

100' : 20480-3523
B 2892

100' : 20579-3339
RED 26

103' : 20452-3510
SEE 428

104' : 20532-3521
BRT1814

105' : 20451-3221
LDS5910

106' : 20575-3435
BRT1816



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.

20500-3347 HJ 5224 (Alp Mic)

 
 
20h 49m 58.08s -33° 46' 46.8" P.A. 165.00 sep 20.2 mag 5.00,10.09 Sp G7III dist. 116.01 pc (378.42 l.y.)
 
 
Coord 2000 20500-3347 Discov num HJ 5224 Comp Coord arcsec 2000 20 49 58.08 -33 46 46.8
Date first 1834 Date last 2010 Obs 19
Pa first 168 Pa last 164.9 P.A. Now (θ) 164.9°
Sep first 27.5 Sep last 20.19 Sep. Now (ρ) 20.19"
Mag pri 5.00 Mag sec 10.09 delta mag (ΔM) 5.09 Spectral class G7III (yellow)
Pri motion ra +013 Sec motion ra
Pri motion dec -022 Sec motion dec
Notes N Y (See Notes, Parallax indicates components are non-physical)
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Alp Mic Var name NSV13329 Mic Constellation Microscopium SAO 212472
HIP 102831 Tycho2 7465-01445-1 Gaia DR2 6780065098937236096 HD 198232
HR 7965 GC 29026 CD CD-3414660 CP CP-34 8799
Bayer Alpha Microscopii Bayer name Alp Mic Distance 116.01 Distance ly 378.42
Bayer greek α Mic
 
 
WDS 20500-3347 HJ 5224 (Alp Mic) : NOTES
 
 
discov_num notes refcode
HJ 5224 alp Mic
 
 
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.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20500-3347 HJ 5224 1999 16 166 20.4 4.90 10.00 G7III N D 204958.08-334646.8
20500-3347 HJ 5224 2010 19 165 20.2 4.90 10.00 G7III N D 204958.08-334646.8

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

 
 
WDS 20500-3347 HJ 5224 (Alp Mic) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20500-3347 HJ 5224 (Alp Mic) : MEASURES
 
 
No records found.

 
 
WDS 20500-3347 (Alp Mic) : VIRTUAL EYEPIECE
 
 

20500-3347 HJ 5224A mag 5 Sp G7III 20500-3347 HJ 5224B sep 20.0 P.A. 167.40 mag 10.09 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 20500-3347 (Alp Mic) : ALADIN DSS IMAGE @ 20h 49m 58.08s -33° 46' 46.8"
 
 
 
 
WDS 20500-3347 HJ 5224 (Alp Mic) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20500-3347 HJ 5224 distance=1' 20521-3353 SEE 430 distance=28' 20501-3315 UC 4305 distance=33' 20467-3336 HDS2960AB distance=43' 20467-3336 SKF2090AC distance=43' 20517-3303 UC 4311 distance=49' 20521-3428 B 999 distance=49' 20510-3256 RST2162 distance=53' 20518-3434 B 504 distance=53' 20478-3255 WIS 343 distance=59' 20551-3408 HJ 5234 distance=68' 20525-3451 NSN 490 distance=72' 20529-3245 B 1000 distance=72' 20467-3245 RST2160 distance=75' 20458-3443 HJ 5219 distance=76' 20565-3340 B 1002 distance=83' 20556-3304 LDS6419 distance=84' 20543-3243 TDT2622Aa,Ab distance=85' 20543-3243 UC 4321AB distance=85' 20570-3406 RST3272 distance=91' 20521-3517 RST3270 distance=94' 20431-3305 UC 4268 distance=96' 20518-3523 KPP1661 distance=100' 20480-3523 B 2892 distance=100' 20579-3339 RED 26 distance=100' 20452-3510 SEE 428 distance=103' 20532-3521 BRT1814 distance=104' 20451-3221 KPP3118Aa,Ab distance=105' 20451-3221 LDS5910 distance=105' 20575-3435 BRT1816 distance=106' 20501-3534 HDS2969 distance=107' 20588-3402 RST3274 distance=112' 20437-3509 KPP 941 distance=113' 20411-3327 SEE 424A,BC distance=113' 20411-3327 B 993BC distance=113' 20577-3248 ENO 6 distance=114' 20592-3325 RST2170 distance=118' 20506-3545 TDT2573 distance=119' 20563-3216 JSP 819 distance=121' 20591-3301 RST2169 distance=124' 20554-3202 TDT2631 distance=125' 21002-3408 KPP4219 distance=129' 20452-3120 LDS 720BC distance=131' 20561-3201 JSP 818 distance=132' 20436-3532 HJ 5215 distance=132' 20404-3251 SHY 781 distance=132' 20571-3526 B 510 distance=133' 20479-3132 B 995 distance=138' 21007-3315 TDT2691 distance=138' 20598-3452 TDT2682 distance=138' 20440-3147 JSP 816 distance=142' 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 20500-3347 HJ 5224 165 20.2 1
Show 20521-3353 SEE 430 345 14.5 28
Show 20501-3315 UC 4305 302 143.4 33
Show 20467-3336 HDS2960 AB 158 0.2 43
Show 20467-3336 SKF2090 AC 190 88.1 43
Show 20517-3303 UC 4311 335 26.1 49
Show 20521-3428 B 999 328 1.3 49
Show 20510-3256 RST2162 76 0.8 53
Show 20518-3434 B 504 38 2.3 53
Show 20478-3255 WIS 343 9 525.5 59
Show 20551-3408 HJ 5234 90 15.1 68
Show 20525-3451 NSN 490 73 2.0 72
Show 20529-3245 B 1000 312 3.6 72
Show 20467-3245 RST2160 138 0.5 75
Show 20458-3443 HJ 5219 323 8.5 76
Show 20565-3340 B 1002 324 0.6 83
Show 20556-3304 LDS6419 34 4.7 84
Show 20543-3243 TDT2622 Aa,Ab 232 0.5 85
Show 20543-3243 UC 4321 AB 38 24.4 85
Show 20570-3406 RST3272 23 2.2 91
Show 20521-3517 RST3270 338 2.5 94
Show 20431-3305 UC 4268 40.3 96
Show 20518-3523 KPP1661 42 12.8 100
Show 20480-3523 B 2892 104 8.1 100
Show 20579-3339 RED 26 186 18.9 100
Show 20452-3510 SEE 428 188 4.4 103
Show 20532-3521 BRT1814 258 4.0 104
Show 20451-3221 KPP3118 Aa,Ab 16 1.6 105
Show 20451-3221 LDS5910 355 283.9 105
Show 20575-3435 BRT1816 180 3.7 106
Show 20501-3534 HDS2969 174 0.1 107
Show 20588-3402 RST3274 358 1.8 112
Show 20437-3509 KPP 941 156 7.7 113
Show 20411-3327 SEE 424 A,BC 335 11.2 113
Show 20411-3327 B 993 BC 40 0.4 113
Show 20577-3248 ENO 6 24 13.6 114
Show 20592-3325 RST2170 33 1.0 118
Show 20506-3545 TDT2573 74 0.4 119
Show 20563-3216 JSP 819 348 0.8 121
Show 20591-3301 RST2169 99 1.3 124
Show 20554-3202 TDT2631 243 0.7 125
Show 21002-3408 KPP4219 358 2.1 129
Show 20452-3120 LDS 720 BC 128 1.8 131
Show 20561-3201 JSP 818 357 2.2 132
Show 20436-3532 HJ 5215 183 22.8 132
Show 20404-3251 SHY 781 310 999.9 132
Show 20571-3526 B 510 327 3.4 133
Show 20479-3132 B 995 288 0.5 138
Show 21007-3315 TDT2691 258 0.5 138
Show 20598-3452 TDT2682 151 2.2 138
Show 20440-3147 JSP 816 132 3.3 142

 
 
WDS 20500-3347 : COMPONENTS
 
 
  A
B pa=167.4°
sep=19.98"
 
 
20500-3347 A
 
 
Componente originario normalizzato AB Name Alp Mic Coord arcsec 2000 204958.08-334646.8 Mag 5
Spectral class G7III (yellow) PmRA 13.00 PmDE -22.0 SAO 212472
HIP 102831 Tycho2 7465-01445-1 HD 198232 HR 7965
GC 29026 CD CD-3414660 CP CP-34 8799 Bayer Alpha Microscopii
Bayer name Alp Mic
Tycho2
Tycho2 7465-01445-1 Pflag RAmdeg 312.49202586 DEmdeg -33.77972060
PmRA 9.1 PmDE -19.8 E RAmdeg 3 E DEmdeg 4
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.50 EpDEm 1990.90
Num 14 Q RAmdeg 0.7 Q DEmdeg 0.8 Q pmRA 0.6
Q pmDE 0.6 BTmag 6.140 E BTmag 0.015 VTmag 4.999
E VTmag 0.009 Prox 999 TYC T HIP 102831
CCDM RAdeg 312.49200056 DEdeg -33.77967250 EpRA 1990 1.67
EpDE 1990 1.28 E RAdeg 3.4 E DEdeg 3.9 Posflg
Corr -0.3
SAO
SAO 212472 DelFlag RA1950 PmRA1950 0.0008
DE1950 PmDE1950 -0.022 Vmag 5 SpType K0
Double code Source 70 CatNum 29026 DM CD-3414660
DMcomp BDsup HD 198232 M HD 0
GC 29026 RA1950rad 5.44040741 DE1950rad -0.59282148 PmRA2000 0.0008
PmDE2000 -0.025
Hipparcos
Catalog H HIP 102831 Proxy RAhms 20 49 58.08
DEdms -33 46 46.8 Vmag 4.89 VarFlag R Vmag H
RAdeg 312.492 DEdeg -33.7797 AstroRef Plx 8.57
CCDM 20500-3347 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 198232 BD
CD CD-3414660 CP CP-34 8799 Dm number -3414660 VIred 0.97
SpType G8III R SpType Coord arcsec 2000 204958.08-334646.8
Hipparcos 2
HIP 102831 Sn 7 So 0 Nc 1
RArad 5.4540142558 DErad -0.5895665123 Plx 8.62 PmRA 0.76
PmDE -21.07 E RArad 0.73 E DErad 0.39 E Plx 0.71
E pmRA 0.76 E pmDE 0.61 Hpmag 5.0571 E Hpmag 0.0006
SHp 0.005 VA 0 BV 1.003 E BV 0.003
VI 0.97
CCDM
Ccdm 20500-3347 RComp Comp A Note1
Note2 Discov num DRAs -1.99 DDEs 13.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.0 Sp G6 PmNote *
PmRA 4 PmDE -18 Dm number -3414660 Cat1 CD
Name2 212472 Cat2 SAO HD 198232 M HD
ADS BDS M ADS BDS N IDS IDS 20437S3409A
HIC 102831
 
 
20500-3347 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204958.43-334706.3 Mag 10.09 Calc delta mag 5.09
Calc coord yes
CCDM
Ccdm 20500-3347 RComp Comp B Note1
Note2 Discov num HJ 5224 DRAs -1.55 DDEs -6.6
R dRAs 90 Year 1835 Theta 166 Rho 20.5
Obs 11 Vmag 10.0 Sp PmNote *
PmRA 9 PmDE -16 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20437S3409B
HIC