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Doubles in session


Current system
13550-2905
RST 1755
HD 121271


Nearby doubles
14' : 13560-2911
UC 2639

40' : 13543-2942
LDS5798

45' : 13558-2820
B 259

49' : 13574-2828
NSN 412

55' : 13528-2952
KPP 296

61' : 13516-2945
WNO 60AB

67' : 13558-3011
UC 2638

68' : 14002-2903
UC 2656

71' : 14004-2916
HJ 4639

74' : 13497-2927
HDS1944

74' : 13538-3017
SEE 190AB

74' : 13507-2952
HJ 4617

74' : 14003-2840
RST1760

79' : 13531-3019
I 935

80' : 14010-2857
RST1761

82' : 13583-2756
BRT3005

83' : 13590-3010
DAW 141

87' : 13499-2811
RSS 20

87' : 14016-2853
LDS 469

90' : 13569-2740
SEE 193

91' : 13490-2822
BU 413

98' : 13571-2731
I 234

103' : 13523-3047
SEE 189

104' : 13513-2734
LDS 855

105' : 13503-2742
UC 2624

106' : 14026-2834
LDS5805



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.

13550-2905 RST 1755 (HD 121271)

 
 
13h 55m 02.57s -29° 05' 25.8" P.A. 59.00 sep 2.2 mag 9.78,12.49 Sp K7V dist. 17.26 pc (56.3 l.y.)
 
 
Coord 2000 13550-2905 Discov num RST1755 Comp Coord arcsec 2000 13 55 02.57 -29 05 25.8
Date first 1931 Date last 2016 Obs 9
Pa first 53 Pa last 58.7 P.A. Now (θ) 58.7°
Sep first 1.3 Sep last 2.25 Sep. Now (ρ) 2.25"
Mag pri 9.78 Mag sec 12.49 delta mag (ΔM) 2.71 Spectral class K7V (yellow-orange)
Pri motion ra -255 Sec motion ra -277
Pri motion dec -088 Sec motion dec -101
Notes
rPM=0.087 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 121271 Constellation Hydra SAO 182074 HIP 67960
Tycho2 6728-00698-1 Gaia DR2 6176833914259261568 HD 121271 GL GJ 1181A
CD CD-2810318 CP CP-28 4803 Distance 17.26 Distance ly 56.3
 
 
WDS 13550-2905 RST 1755 (HD 121271) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Rst1933 T - Rossiter, R.A. 1933MmRAS..65...27R
Rst1933 MemRAS 65, 27, 1933
Rst1937 Ma - Rossiter, R.A. 1937MmRAS..65...51R
Rst1937 MemRAS 65, 51, 1937
Rst1943 Ma - Rossiter, R.A. 1943POMic...8..133R
Rst1943 Pub. Univ. Michigan Obs. 8, 133, 1943
Rst1944 - Rossiter, R.A. 1944POMic...9....1R
Rst1944 Pub. Univ. Michigan Obs. 9, 1, 1944
Rst1947 Ma - Rossiter, R.A. 1947POMic...9....7R
Rst1947 Pub. Univ. Michigan Obs. 9, 7, 1947
Rst1955 Ma j Rossiter, R.A. 1955POMic..11....1R
Rst1955 +P+ Pub. Univ. Michigan Obs. 11, 1, 1955
Rst1964 Ma - Rossiter, R.A. 1964POMic...9...73R
Rst1964 Pub. Univ. Michigan Obs. 9, 73, 1964
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13550-2905 RST1755 1991 7 64 1.6 9.78 12.49 K7V 135502.57-290525.8
13550-2905 RST1755 2016 8 59 2.2 9.78 12.49 K7V 135502.57-290525.8

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

 
 
WDS 13550-2905 RST 1755 (HD 121271) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 13550-2905 RST 1755 (HD 121271) : MEASURES
 
 
No records found.

 
 
WDS 13550-2905 (HD 121271) : VIRTUAL EYEPIECE
 
 

13550-2905 RST1755A mag 9.78 Sp K7V 13550-2905 RST1755B sep 2.0 P.A. 55.20 mag 12.49 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 13550-2905 (HD 121271) : ALADIN DSS IMAGE @ 13h 55m 02.57s -29° 05' 25.8"
 
 
 
 
WDS 13550-2905 RST 1755 (HD 121271) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

13550-2905 RST1755 distance=0' 13560-2911 UC 2639 distance=14' 13543-2942 LDS5798 distance=40' 13558-2820 B 259 distance=45' 13574-2828 NSN 412 distance=49' 13528-2952 KPP 296 distance=55' 13516-2945 LDS5797AC distance=61' 13516-2945 WNO 60AB distance=61' 13558-3011 UC 2638 distance=67' 14002-2903 UC 2656 distance=68' 14004-2916 HJ 4639 distance=71' 13497-2927 HDS1944 distance=74' 13538-3017 SEE 190AB distance=74' 13538-3017 SEE 190AC distance=74' 13507-2952 HJ 4617 distance=74' 14003-2840 RST1760 distance=74' 13531-3019 I 935 distance=79' 14010-2857 RST1761 distance=80' 13583-2756 BRT3005 distance=82' 13590-3010 DAW 141 distance=83' 13499-2811 RSS 20 distance=87' 14016-2853 LDS 469 distance=87' 13569-2740 SEE 193 distance=90' 13490-2822 BU 413 distance=91' 13571-2731 I 234 distance=98' 13523-3047 SEE 189 distance=103' 13513-2734 LDS 855 distance=104' 13503-2742 UC 2624 distance=105' 14026-2834 LDS5805 distance=106' 13511-2725 B 256 distance=114' 13502-2731 RST1751AB distance=115' 13502-2731 DAM 604AC distance=115' 14008-3035 WSP 131AB distance=117' 14008-3035 WSP 131AC distance=117' 13468-2820 LDS4403AB distance=118' 13468-2820 DAM2495BC distance=121' 13470-3006 UC 2616 distance=121' 13468-2759 LDS5793 distance=122' 13470-3009 UC 2617 distance=123' 13457-2858 TDS8957 distance=124' 14044-2836 B 264 distance=126' 13587-3104 RSS 317 distance=128' 13472-3024 HJ 4613 distance=128' 14007-3053 BRT3006 distance=130' 14045-2817 UC 2673 distance=134' 14048-2825 BRT3007AB distance=135' 14004-2708 LDS4424 distance=137' 14056-2924 UC 2678 distance=140' 13480-3051 DBR 180 distance=140' 14057-2851 B 2327 distance=141' 13505-2657 KPP1357 distance=143' 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 13550-2905 RST1755 59 2.2
Show 13560-2911 UC 2639 191 43.8 14
Show 13543-2942 LDS5798 123 123.9 40
Show 13558-2820 B 259 186 3.7 45
Show 13574-2828 NSN 412 48 2.0 49
Show 13528-2952 KPP 296 348 3.4 55
Show 13516-2945 LDS5797 AC 314 383.3 61
Show 13516-2945 WNO 60 AB 233 4.7 61
Show 13558-3011 UC 2638 72 8.4 67
Show 14002-2903 UC 2656 250 7.7 68
Show 14004-2916 HJ 4639 337 9.1 71
Show 13497-2927 HDS1944 262 0.3 74
Show 13538-3017 SEE 190 AB 222 7.4 74
Show 13538-3017 SEE 190 AC 146 32.0 74
Show 13507-2952 HJ 4617 262 5.1 74
Show 14003-2840 RST1760 29 1.6 74
Show 13531-3019 I 935 76 1.4 79
Show 14010-2857 RST1761 289 4.7 80
Show 13583-2756 BRT3005 309 3.4 82
Show 13590-3010 DAW 141 132 2.1 83
Show 13499-2811 RSS 20 90 47.5 87
Show 14016-2853 LDS 469 67 16.0 87
Show 13569-2740 SEE 193 164 6.5 90
Show 13490-2822 BU 413 106 66.8 91
Show 13571-2731 I 234 215 0.6 98
Show 13523-3047 SEE 189 255 13.1 103
Show 13513-2734 LDS 855 234 9.1 104
Show 13503-2742 UC 2624 326 4.8 105
Show 14026-2834 LDS5805 186 179.7 106
Show 13511-2725 B 256 136 1.3 114
Show 13502-2731 RST1751 AB 124 2.4 115
Show 13502-2731 DAM 604 AC 282 16.6 115
Show 14008-3035 WSP 131 AB 223 10.0 117
Show 14008-3035 WSP 131 AC 239 24.9 117
Show 13468-2820 LDS4403 AB 269 182.9 118
Show 13468-2820 DAM2495 BC 23 1.4 121
Show 13470-3006 UC 2616 119 12.2 121
Show 13468-2759 LDS5793 306 76.0 122
Show 13470-3009 UC 2617 299 9.8 123
Show 13457-2858 TDS8957 136 0.5 124
Show 14044-2836 B 264 217 0.8 126
Show 13587-3104 RSS 317 223 11.0 128
Show 13472-3024 HJ 4613 213 19.8 128
Show 14007-3053 BRT3006 282 4.7 130
Show 14045-2817 UC 2673 273 22.1 134
Show 14048-2825 BRT3007 AB 348 3.7 135
Show 14004-2708 LDS4424 325 19.5 137
Show 14056-2924 UC 2678 60 48.3 140
Show 13480-3051 DBR 180 298 2.8 140
Show 14057-2851 B 2327 181 6.9 141
Show 13505-2657 KPP1357 94 10.2 143

 
 
WDS 13550-2905 : COMPONENTS
 
 
  A
B pa=55.2°
sep=2.05"
 
 
13550-2905 A
 
 
Componente originario normalizzato AB Name HD 121271 Coord arcsec 2000 135502.57-290525.8 Mag 9.78
Spectral class K7V (yellow-orange) PmRA -255.00 PmDE -88.0 SAO 182074
HIP 67960 Tycho2 6728-00698-1 HD 121271 CD CD-2810318
CP CP-28 4803
Tycho2
Tycho2 6728-00698-1 Pflag RAmdeg 208.76072239 DEmdeg -29.09049573
PmRA -255.3 PmDE -88.3 E RAmdeg 22 E DEmdeg 29
E pmRA 2.7 E pmDE 2.4 EpRAm 1990.86 EpDEm 1989.79
Num 3 Q RAmdeg 1.3 Q DEmdeg 0.1 Q pmRA 1.3
Q pmDE 0.1 BTmag 11.233 E BTmag 0.069 VTmag 9.782
E VTmag 0.030 Prox 16 TYC T HIP 67960
CCDM A RAdeg 208.76139611 DEdeg -29.09029111 EpRA 1990 1.70
EpDE 1990 1.66 E RAdeg 22.3 E DEdeg 29.3 Posflg
Corr 0.1
SAO
SAO 182074 DelFlag RA1950 PmRA1950 -0.0189
DE1950 PmDE1950 -0.095 Vmag 9 SpType K2
Double code Source 24 CatNum 8810 DM CD-2810318
DMcomp BDsup HD 121271 M HD 0
GC RA1950rad 3.63117313 DE1950rad -0.50342862 PmRA2000 -0.0189
PmDE2000 -0.091
Hipparcos
Catalog H HIP 67960 Proxy H RAhms 13 55 02.74
DEdms -29 05 25.0 Vmag 9.53 VarFlag R Vmag G
RAdeg 208.761 DEdeg -29.0903 AstroRef A Plx 59.57
CCDM 13550-2905 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 64 Rho 1.656 HD 121271 BD
CD CD-2810318 CP CP-28 4803 Dm number -2810318 VIred 1.71
SpType K5/M0V R SpType Coord arcsec 2000 135502.74-290525.0
Hipparcos 2
HIP 67960 Sn 15 So 3 Nc 2
RArad 3.6435741449 DErad -0.5077212726 Plx 57.93 PmRA -275.74
PmDE -100.88 E RArad 1.26 E DErad 0.79 E Plx 1.48
E pmRA 1.38 E pmDE 1.04 Hpmag 9.5988 E Hpmag 0.0025
SHp 0.018 VA 0 BV 1.414 E BV 0.005
VI 1.71
CCDM
Ccdm 13550-2905 RComp Comp A Note1
Note2 Discov num DRAs 2.63 DDEs -25.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.4 Sp K2 PmNote *
PmRA -249 PmDE -95 Dm number -2810318 Cat1 CD
Name2 182074 Cat2 SAO HD 121271 M HD
ADS BDS M ADS BDS N IDS IDS 13494S2836A
HIC 67960
 
 
13550-2905 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 135502.70-290524.6 Mag 12.49 PmRA -277.00
PmDE -101.0 Calc delta mag 2.71 Calc coord yes
CCDM
Ccdm 13550-2905 RComp Comp B Note1
Note2 Discov num RST1755 DRAs DDEs
R dRAs Year 1950 Theta 034 Rho 1.2
Obs 3 Vmag 13.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 13494S2836B
HIC 67960