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Doubles in session


Current system
17238-2138
HDS 2456
HD 157380


Nearby doubles
6' : 17236-2143
HLD 133

18' : 17247-2126
HLD 134

27' : 17221-2138
LDS 594

27' : 17257-2138
TDT 345

40' : 17264-2123
OCC1097

40' : 17245-2217
RST3094

42' : 17267-2128
OCC9164

51' : 17210-2107
DON 832AB

52' : 17226-2049
DON 833

54' : 17200-2132
HU 750

58' : 17200-2119
RST3086

60' : 17221-2044
SEE 326

71' : 17244-2248
B 339AB

75' : 17283-2058
A 2244AB

77' : 17228-2024
TDT 327

77' : 17200-2234
RST3087

79' : 17250-2022
DON 838

80' : 17293-2115
OCC 410

80' : 17216-2252
TDT 320

84' : 17293-2213
SKF2523

89' : 17287-2235
B 2837

93' : 17303-2119
OCC1099

93' : 17190-2034
RSS 435

96' : 17226-2004
B 2834

98' : 17189-2029
ARA1124

101' : 17185-2245
KIR 25



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.

17238-2138 HDS 2456 (HD 157380)

 
 
17h 23m 48.27s -21° 38' 27.4" P.A. 205.00 sep 0.1 mag 9.15,11.21 Sp K2III dist. 253.16 pc (825.81 l.y.)
 
 
Coord 2000 17238-2138 Discov num HDS2456 Comp Coord arcsec 2000 17 23 48.27 -21 38 27.4
Date first 1991 Date last 1991 Obs 1
Pa first 205 Pa last 205 P.A. Now (θ) 205°
Sep first 0.1 Sep last 0.142 Sep. Now (ρ) 0.142"
Mag pri 9.15 Mag sec 11.21 delta mag (ΔM) 2.06 Spectral class K2III (yellow-orange)
Pri motion ra -002 Sec motion ra
Pri motion dec +008 Sec motion dec
Notes X (Dubious double)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 157380 Constellation Ophiuchus SAO 185355 HIP 85121
Tycho2 6246-00390-1 Gaia DR2 4114862794592444672 HD 157380 BD BD-21 4595
Distance 253.16 Distance ly 825.81
 
 
WDS 17238-2138 HDS 2456 (HD 157380) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17238-2138 HDS2456 1991 1 205 0.1 9.15 11.21 K2III 172348.27-213827.4

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

 
 
WDS 17238-2138 HDS 2456 (HD 157380) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17238-2138 HDS 2456 (HD 157380) : MEASURES
 
 
No records found.

 
 
WDS 17238-2138 (HD 157380) : VIRTUAL EYEPIECE
 
 

17238-2138 HDS2456A mag 9.15 Sp K2III 17238-2138 HDS2456B sep 0.1 P.A. 203.40 mag 11.21 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 17238-2138 (HD 157380) : ALADIN DSS IMAGE @ 17h 23m 48.27s -21° 38' 27.4"
 
 
 
 
WDS 17238-2138 HDS 2456 (HD 157380) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17238-2138 HDS2456 distance=0' 17236-2143 HLD 133 distance=6' 17247-2126 HLD 134 distance=18' 17221-2138 LDS 594 distance=27' 17257-2138 TDT 345 distance=27' 17264-2123 OCC1097 distance=40' 17245-2217 RST3094 distance=40' 17267-2128 OCC9164 distance=42' 17210-2107 DON 832AB distance=51' 17210-2107 TNN 8AC distance=51' 17226-2049 DON 833 distance=52' 17200-2132 HU 750 distance=54' 17200-2119 RST3086 distance=58' 17221-2044 SEE 326 distance=60' 17244-2248 B 339AB distance=71' 17244-2248 HJ 4948AC distance=71' 17283-2058 A 2244AB distance=75' 17283-2058 OCC1098Aa,Ab distance=75' 17228-2024 TDT 327 distance=77' 17200-2234 RST3087 distance=77' 17250-2022 DON 838 distance=79' 17293-2115 OCC 410 distance=80' 17216-2252 TDT 320 distance=80' 17293-2213 SKF2523 distance=84' 17287-2235 B 2837 distance=89' 17303-2119 OCC1099 distance=93' 17190-2034 RSS 435 distance=93' 17226-2004 B 2834 distance=96' 17189-2029 ARA1124 distance=98' 17185-2245 KIR 25 distance=101' 17311-2129 RST3107 distance=102' 17179-2247 ARA1818 distance=107' 17315-2134 I 602 distance=107' 17268-1959 I 599 distance=108' 17287-2304 RST3103 distance=110' 17316-2113 ARA1497 distance=112' 17200-1959 I 592 distance=113' 17189-2005 ARA 713 distance=116' 17301-2257 B 343 distance=118' 17159-2056 REP 47 distance=118' 17152-2154 KPP4030 distance=121' 17165-2245 ARA1817 distance=121' 17151-2156 HU 749 distance=123' 17226-1937 MOC 12AB distance=123' 17226-1937 MOC 12AC distance=123' 17226-1937 MOC 12AD distance=123' 17150-2203 B 2828AB distance=125' 17150-2203 B 2828AC distance=125' 17150-2210 ARA1816 distance=127' 17199-1941 A 2240 distance=131' 17233-1927 HDS2455 distance=132' 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 17238-2138 HDS2456 205 0.1
Show 17236-2143 HLD 133 171 0.9 6
Show 17247-2126 HLD 134 140 4.5 18
Show 17221-2138 LDS 594 99 4.8 27
Show 17257-2138 TDT 345 303 1.7 27
Show 17264-2123 OCC1097 -1 0.0 40
Show 17245-2217 RST3094 16 1.0 40
Show 17267-2128 OCC9164 -1 0.1 42
Show 17210-2107 DON 832 AB 26 4.1 51
Show 17210-2107 TNN 8 AC 261 10.8 51
Show 17226-2049 DON 833 257 7.8 52
Show 17200-2132 HU 750 112 1.9 54
Show 17200-2119 RST3086 265 2.6 58
Show 17221-2044 SEE 326 7 0.9 60
Show 17244-2248 B 339 AB 207 3.6 71
Show 17244-2248 HJ 4948 AC 106 13.3 71
Show 17283-2058 A 2244 AB 51 0.1 75
Show 17283-2058 OCC1098 Aa,Ab -1 0.1 75
Show 17228-2024 TDT 327 83 0.6 77
Show 17200-2234 RST3087 29 1.0 77
Show 17250-2022 DON 838 340 0.4 79
Show 17293-2115 OCC 410 -1 0.1 80
Show 17216-2252 TDT 320 71 0.5 80
Show 17293-2213 SKF2523 314 3.5 84
Show 17287-2235 B 2837 225 13.0 89
Show 17303-2119 OCC1099 -1 0.0 93
Show 17190-2034 RSS 435 303 19.8 93
Show 17226-2004 B 2834 354 6.5 96
Show 17189-2029 ARA1124 73 6.6 98
Show 17185-2245 KIR 25 329 54.3 101
Show 17311-2129 RST3107 226 0.4 102
Show 17179-2247 ARA1818 61 8.5 107
Show 17315-2134 I 602 313 3.3 107
Show 17268-1959 I 599 133 2.2 108
Show 17287-2304 RST3103 15 1.7 110
Show 17316-2113 ARA1497 229 8.3 112
Show 17200-1959 I 592 270 14.7 113
Show 17189-2005 ARA 713 300 7.1 116
Show 17301-2257 B 343 199 2.3 118
Show 17159-2056 REP 47 66 4.4 118
Show 17152-2154 KPP4030 289 3.1 121
Show 17165-2245 ARA1817 167 11.6 121
Show 17151-2156 HU 749 151 1.9 123
Show 17226-1937 MOC 12 AB 14 2.8 123
Show 17226-1937 MOC 12 AC 241 4.3 123
Show 17226-1937 MOC 12 AD 177 5.0 123
Show 17150-2203 B 2828 AB 192 5.7 125
Show 17150-2203 B 2828 AC 74 8.3 125
Show 17150-2210 ARA1816 345 14.1 127
Show 17199-1941 A 2240 203 1.6 131
Show 17233-1927 HDS2455 314 0.4 132

 
 
WDS 17238-2138 : COMPONENTS
 
 
  A
B pa=203.4°
sep=0.14"
 
 
17238-2138 A
 
 
Componente originario normalizzato AB Name HD 157380 Coord arcsec 2000 172348.27-213827.4 Mag 9.15
Spectral class K2III (yellow-orange) PmRA -2.00 PmDE 8.0 SAO 185355
HIP 85121 Tycho2 6246-00390-1 HD 157380 BD BD-21 4595
Tycho2
Tycho2 6246-00390-1 Pflag RAmdeg 260.95115184 DEmdeg -21.64094052
PmRA 2.4 PmDE 6.1 E RAmdeg 12 E DEmdeg 15
E pmRA 1.4 E pmDE 1.5 EpRAm 1988.58 EpDEm 1987.09
Num 10 Q RAmdeg 1.2 Q DEmdeg 1.3 Q pmRA 1.2
Q pmDE 1.3 BTmag 10.989 E BTmag 0.053 VTmag 9.098
E VTmag 0.019 Prox 999 TYC T HIP 85121
CCDM AB RAdeg 260.95114444 DEdeg -21.64095278 EpRA 1990 1.64
EpDE 1990 1.23 E RAdeg 12.6 E DEdeg 16.8 Posflg P
Corr 0.0
SAO
SAO 185355 DelFlag RA1950 PmRA1950 -0.0003
DE1950 PmDE1950 0 Vmag 8.4 SpType K2
Double code Source 23 CatNum 7124 DM BD-21 4595
DMcomp BDsup HD 157380 M HD 0
GC RA1950rad 4.54137438 DE1950rad -0.37691317 PmRA2000 -0.0003
PmDE2000 0.002
Hipparcos
Catalog H HIP 85121 Proxy H RAhms 17 23 48.27
DEdms -21 38 27.4 Vmag 8.98 VarFlag R Vmag G
RAdeg 260.951 DEdeg -21.641 AstroRef * Plx 1.96
CCDM 17238-2138 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source S Qual C M HIP AB
Theta 205 Rho 0.142 HD 157380 BD BD-21 4595
CD CP Dm number -21 4595 VIred 1.34
SpType K2III R SpType Coord arcsec 2000 172348.27-213827.4
Hipparcos 2
HIP 85121 Sn 55 So 3 Nc 2
RArad 4.5544565621 DErad -0.3777059162 Plx 3.95 PmRA -1.45
PmDE 6.4 E RArad 1.4 E DErad 0.99 E Plx 1.42
E pmRA 1.85 E pmDE 1.05 Hpmag 8.9935 E Hpmag 0.0025
SHp 0.015 VA 0 BV 0 E BV 0
VI 0
CCDM
Ccdm 17238-2138 RComp Comp A Note1
Note2 Discov num DRAs 0.27 DDEs -27.4
R dRAs 82 Year Theta Rho
Obs 2 Vmag 9.1 Sp K2 PmNote *
PmRA -2 PmDE 8 Dm number -21 4595 Cat1 BD
Name2 185355 Cat2 SAO HD 157380 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 85121
 
 
17238-2138 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 172348.27-213827.5 Mag 11.21 Calc delta mag 2.06
Calc coord yes
CCDM
Ccdm 17238-2138 RComp Comp B Note1
Note2 Discov num HDS DRAs 0.27 DDEs -27.5
R dRAs 82 Year 1991 Theta 205 Rho 0.1
Obs 1 Vmag 11.2 Sp PmNote *
PmRA -2 PmDE 8 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 85121