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Doubles in session


Current system
18138-5422
HJ 5027
HD 166475


Nearby doubles
23' : 18118-5407
HRG 127

32' : 18103-5414
B 377

32' : 18106-5437
NZO 88

33' : 18148-5350
BRT2100

41' : 18140-5342
BRT2099

44' : 18117-5342
UC 3527AB

45' : 18149-5505
RST 972

50' : 18096-5456
RST3154

53' : 18160-5333
HJ 9004AB

54' : 18123-5330
UC 3531

55' : 18171-5336
RST3166

62' : 18069-5411
UC 3496

67' : 18067-5447
TDT 688

69' : 18124-5530
RST 969

69' : 18150-5530
UC 3534

71' : 18205-5344
FIN 264

71' : 18067-5349
BRT2098

75' : 18093-5525
UC 3508

75' : 18222-5435
UC 3564

81' : 18150-5303
UC 3533AB

83' : 18229-5443
UC 3567

84' : 18058-5509
UC 3493

88' : 18099-5301
FIN 53AB

88' : 18148-5255
UC 3532

92' : 18242-5434
LPO 64

93' : 18050-5333
UC 3489



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.

18138-5422 HJ 5027 (HD 166475)

 
 
18h 13m 45.51s -54° 21' 57.0" P.A. 163.00 sep 23.2 mag 8.76,10.05 Sp K2III
 
 
Coord 2000 18138-5422 Discov num HJ 5027 Comp Coord arcsec 2000 18 13 45.51 -54 21 57.0
Date first 1834 Date last 2015 Obs 27
Pa first 59 Pa last 163.4 P.A. Now (θ) 163.4°
Sep first 15.0 Sep last 23.216 Sep. Now (ρ) 23.216"
Mag pri 8.76 Mag sec 10.05 delta mag (ΔM) 1.29 Spectral class K2III (yellow-orange)
Pri motion ra +004 Sec motion ra -044
Pri motion dec +011 Sec motion dec -161
Notes L (Linear solution)
rPM=1.07
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 166475 Constellation Telescopium SAO 245323 Tycho2 8744-02495-1
Gaia DR2 6653132253950610304 HD 166475
 
 
WDS 18138-5422 HJ 5027 (HD 166475) : 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.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18138-5422 HJ 5027 1999 24 160 21.0 8.76 10.05 K2III LD 181345.51-542157.0
18138-5422 HJ 5027 2010 26 163 22.4 8.76 10.05 K2III L 181345.51-542157.0
18138-5422 HJ 5027 2015 27 163 23.2 8.76 10.05 K2III L 181345.51-542157.0

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

 
 
WDS 18138-5422 HJ 5027 (HD 166475) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18138-5422 HJ 5027 (HD 166475) : MEASURES
 
 
No records found.

 
 
WDS 18138-5422 (HD 166475) : VIRTUAL EYEPIECE
 
 

18138-5422 HJ 5027A mag 8.76 Sp K2III 18138-5422 HJ 5027B sep 22.6 P.A. 170.10 mag 10.05 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 18138-5422 (HD 166475) : ALADIN DSS IMAGE @ 18h 13m 45.51s -54° 21' 57.0"
 
 
 
 
WDS 18138-5422 HJ 5027 (HD 166475) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18138-5422 HJ 5027 distance=0' 18118-5407 HRG 127 distance=23' 18103-5414 B 377 distance=32' 18106-5437 NZO 88 distance=32' 18148-5350 BRT2100 distance=33' 18140-5342 BRT2099 distance=41' 18117-5342 FIN 262Aa,Ab distance=44' 18117-5342 UC 3527AB distance=44' 18149-5505 RST 972 distance=45' 18096-5456 RST3154 distance=50' 18160-5333 DAW 221BC distance=53' 18160-5333 HJ 9004AB distance=53' 18123-5330 UC 3531 distance=54' 18171-5336 RST3166 distance=55' 18069-5411 UC 3496 distance=62' 18067-5447 TDT 688 distance=67' 18124-5530 RST 969 distance=69' 18150-5530 UC 3534 distance=69' 18205-5344 FIN 264 distance=71' 18067-5349 BRT2098 distance=71' 18093-5525 UC 3508 distance=75' 18222-5435 UC 3564 distance=75' 18150-5303 UC 3533BC distance=80' 18150-5303 UC 3533AB distance=81' 18229-5443 UC 3567 distance=83' 18058-5509 UC 3493 distance=84' 18099-5301 FIN 53AB distance=88' 18099-5301 FIN 53AC distance=88' 18099-5301 FIN 53AD distance=88' 18148-5255 UC 3532 distance=88' 18242-5434 LPO 64 distance=92' 18050-5333 UC 3489 distance=93' 18054-5521 UC 3490 distance=93' 18148-5249 I 630 distance=94' 18060-5528 RST 962 distance=94' 18218-5526 HDS2597 distance=95' 18244-5401 UC 3573 distance=97' 18169-5556 UC 3544 distance=98' 18222-5534 DUN 220 distance=103' 18074-5255 UC 3498 distance=104' 18243-5513 RST 980 distance=105' 18101-5607 NZO 87 distance=110' 18245-5326 RST3178 distance=111' 18045-5541 TSN 29 distance=113' 18258-5338 HJ 5041 distance=115' 18020-5329 BRT2097 distance=116' 18003-5452 RST3138 distance=121' 18216-5604 RST3173 distance=123' 18237-5256 UC 3570 distance=124' 18276-5402 B 390 distance=124' 18207-5235 UC 3555AB distance=124' 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 18138-5422 HJ 5027 163 23.2
Show 18118-5407 HRG 127 175 5.3 23
Show 18103-5414 B 377 359 2.9 32
Show 18106-5437 NZO 88 124 7.4 32
Show 18148-5350 BRT2100 207 9.0 33
Show 18140-5342 BRT2099 49 4.2 41
Show 18117-5342 FIN 262 Aa,Ab 288 0.3 44
Show 18117-5342 UC 3527 AB 262 26.1 44
Show 18149-5505 RST 972 216 0.7 45
Show 18096-5456 RST3154 156 1.7 50
Show 18160-5333 DAW 221 BC 224 8.4 53
Show 18160-5333 HJ 9004 AB 268 14.3 53
Show 18123-5330 UC 3531 89 69.7 54
Show 18171-5336 RST3166 180 0.3 55
Show 18069-5411 UC 3496 337 20.2 62
Show 18067-5447 TDT 688 172 0.5 67
Show 18124-5530 RST 969 94 1.9 69
Show 18150-5530 UC 3534 83 23.4 69
Show 18205-5344 FIN 264 78 0.1 71
Show 18067-5349 BRT2098 104 1.8 71
Show 18093-5525 UC 3508 112 62.1 75
Show 18222-5435 UC 3564 157 32.9 75
Show 18150-5303 UC 3533 BC 228 40.4 80
Show 18150-5303 UC 3533 AB 211 68.9 81
Show 18229-5443 UC 3567 155 31.6 83
Show 18058-5509 UC 3493 28 104.5 84
Show 18099-5301 FIN 53 AB 16 6.3 88
Show 18099-5301 FIN 53 AC 284 6.6 88
Show 18099-5301 FIN 53 AD 95 12.2 88
Show 18148-5255 UC 3532 275 86.0 88
Show 18242-5434 LPO 64 177 3.0 92
Show 18050-5333 UC 3489 348 32.0 93
Show 18054-5521 UC 3490 256 69.6 93
Show 18148-5249 I 630 16 0.9 94
Show 18060-5528 RST 962 34 0.4 94
Show 18218-5526 HDS2597 173 0.1 95
Show 18244-5401 UC 3573 55 48.6 97
Show 18169-5556 UC 3544 285 44.8 98
Show 18222-5534 DUN 220 177 31.2 103
Show 18074-5255 UC 3498 277 81.5 104
Show 18243-5513 RST 980 14 1.1 105
Show 18101-5607 NZO 87 121 8.3 110
Show 18245-5326 RST3178 151 0.4 111
Show 18045-5541 TSN 29 303 18.8 113
Show 18258-5338 HJ 5041 260 2.9 115
Show 18020-5329 BRT2097 108 3.1 116
Show 18003-5452 RST3138 320 1.3 121
Show 18216-5604 RST3173 292 1.6 123
Show 18237-5256 UC 3570 16 20.6 124
Show 18276-5402 B 390 8 1.4 124
Show 18207-5235 UC 3555 AB 253 52.1 124

 
 
WDS 18138-5422 : COMPONENTS
 
 
  A
B pa=170.1°
sep=22.58"
 
 
18138-5422 A
 
 
Componente originario normalizzato AB Name HD 166475 Coord arcsec 2000 181345.51-542157.0 Mag 8.76
Spectral class K2III (yellow-orange) PmRA 4.00 PmDE 11.0 SAO 245323
Tycho2 8744-02495-1 HD 166475 DM CP-54 8761
Tycho2
Tycho2 8744-02495-1 Pflag RAmdeg 273.43960981 DEmdeg -54.36582631
PmRA 4.1 PmDE 9.0 E RAmdeg 10 E DEmdeg 11
E pmRA 1.4 E pmDE 1.3 EpRAm 1990.10 EpDEm 1989.30
Num 9 Q RAmdeg 1.0 Q DEmdeg 1.2 Q pmRA 1.1
Q pmDE 1.2 BTmag 10.111 E BTmag 0.030 VTmag 8.760
E VTmag 0.016 Prox 198 TYC T HIP
CCDM RAdeg 273.43959222 DEdeg -54.36584750 EpRA 1990 1.65
EpDE 1990 1.54 E RAdeg 10.4 E DEdeg 12.4 Posflg
Corr 0.1
SAO
SAO 245323 DelFlag RA1950 PmRA1950 0.0009
DE1950 PmDE1950 0.011 Vmag 8.4 SpType K0
Double code Source 42 CatNum 7192 DM CP-54 8761
DMcomp BDsup HD 166475 M HD 0
GC RA1950rad 4.7544651 DE1950rad -0.94911084 PmRA2000 0.0004
PmDE2000 0.009
CCDM
Ccdm 18138-5422 RComp Comp A Note1
Note2 Discov num DRAs -2.53 DDEs 3.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.6 Sp K0 PmNote *
PmRA 8 PmDE 11 Dm number -54 8761 Cat1 CPD
Name2 245323 Cat2 SAO HD 166475 M HD
ADS BDS M ADS BDS N IDS IDS 18055S5423A
HIC
 
 
18138-5422 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 181345.95-542219.2 Mag 10.05 PmRA -44.00
PmDE -161.0 Tycho2 8744-02682-1 Calc delta mag 1.29 Calc coord yes
Tycho2
Tycho2 8744-02682-1 Pflag RAmdeg 273.44300911 DEmdeg -54.37132768
PmRA -46.1 PmDE -157.7 E RAmdeg 24 E DEmdeg 27
E pmRA 2.0 E pmDE 2.1 EpRAm 1985.47 EpDEm 1983.44
Num 4 Q RAmdeg 1.7 Q DEmdeg 0.3 Q pmRA 1.7
Q pmDE 0.3 BTmag 11.121 E BTmag 0.060 VTmag 10.045
E VTmag 0.039 Prox 198 TYC T HIP
CCDM RAdeg 273.44319639 DEdeg -54.37095500 EpRA 1990 1.66
EpDE 1990 1.52 E RAdeg 27.5 E DEdeg 34.0 Posflg P
Corr 0.1
CCDM
Ccdm 18138-5422 RComp Comp B Note1
Note2 Discov num HJ 5027 DRAs DDEs
R dRAs Year 1959 Theta 146 Rho 15.8
Obs 16 Vmag 10.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18055S5423B
HIC