34 Librae

Query : 34 Librae
C.D.S. - SIMBAD4 rel 1.7 - 2018.12.16CET17:41:50

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations


Basic data :
* zet03 Lib -- Star
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types:
* (*,BD,...), IR (IRAS,2MASS)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) :
15 30 40.4011255255 -16 36 34.063116654 (Optical) [ 0.0686 0.0528 90 ] A 2018yCat.1345....0G
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) :
15 27 50.8579264958 -16 26 21.222560261 [ 7.9003 6.2003 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) :
349.0481363293687 +31.6552915791040 [ 0.0686 0.0528 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr :
22.825 -1.868 [0.158 0.124 90] A 2018yCat.1345....0G
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz :
V(km/s) -1.7 [2] / z(~) -0.000006 [0.000007] / cz -1.70 [2.00]
   E 1953GCRV..C......0W
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas):
6.5077 [0.0720] A 2018yCat.1345....0G
Spectral type is made of 3 parts: %coding is composed of 4 parts :
  • the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities;
  • a quality letter: A=best quality→E=worst quality, {� } =unknown quality %
  • a quality letter: A=best quality -> E=worst quality, {� } =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type:
K0III C 1988MSS...C04....0H
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (6) :
B 6.858 [0.015] D 2000A&A...355L..27H
V 5.806 [0.009] D 2000A&A...355L..27H
G 5.5041 [0.0012] C 2018yCat.1345....0G
J 4.210 [0.248] D 2003yCat.2246....0C
H 3.607 [0.210] D 2003yCat.2246....0C
K 3.495 [0.212] D 2003yCat.2246....0C
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within radius arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (21) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* 34 Lib GSC 06184-01358 2MASS J15304040-1636341 WEB 12914
* zet03 Lib HD 138137 PMC 90-93 6235 YZ 106 5689
BD-16 4099 HIC 75944 PPM 230340 Gaia DR2 6258582505008556160
GC 20842 HIP 75944 SAO 159307
GCRV 8952 HR 5750 SKY# 28063
GEN# +1.00138137 IRAS 15278-1626 TYC 6184-1358-1

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References (18 between 1850 and 2019) (Total 18)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)


Collections of Measurements


distance : 1    velocities : 5    PM : 4    Fe_H : 1    PLX : 3    MK : 1   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

distance (1)

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |  153.6641  pc  |  -1.7001     +1.7001  |paral   |2018yCat.1345....0G|
 

velocities (5)

 |typ|    Value    R   m.e.   |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 -------------------------------------------------------------------------------------------------------
 |v  |    1.73        0.13    |A (   7)|s , ,O   ,           |          |       |  |2018yCat.1345....0G|
 |v  |   -1.7                 |  (   3)|s , ,    ,           |          |       |  |1995A&AS..114..269D|
 |v  |   -1.7         2.0     |E (   3)|s , ,    ,           |          |       |  |1953GCRV..C......0W|
 |V  |   -1.70        2.90    |C (    )|s , ,O   ,           |          |       |  |2006AstL...32..759G|
 |v  |   -1.2                 |  (   1)|  , ,    ,           |          |       |  |1915ApJ....42..172A|
 

pm (4)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |  +22.825[    0.158]|   -1.868[    0.124]|ICRS|2018yCat.1345....0G|
 |  +23.92 [    0.47 ]|   -3.28 [    0.35 ]|ICRS|2007A&A...474..653V|
 |  +23.95 [    0.97 ]|   -2.61 [    0.62 ]|ICRS|1997A&A...323L..49P|
 |  +17    [         ]|   -6    [         ]|FK4 |1933GCCat.C......0B|
 

fe_h (1)

 |Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 -----------------------------------------------------------
 | 4935 2.75  |-0.04   |SUN      |     |2007A&A...475.1003H|
 

plx (3)

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
 |   6.5077  :   0.0720     |2018yCat.1345....0G|
 |   5.78    :   0.83       |1997A&A...323L..49P|
 |   6.42    :   0.38       |2007A&A...474..653V|
 

mk (1)

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
 |  /   |K0III                               |1988MSS...C04....0H|
 
Observing logs


ISO : 1   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

iso (1)

The 2 columns in color are computed by VizieR, and are not part of the original data.
Note: Quick-look images of the data, and specific documentation, are accessible by clicking on the TDT observation identifier
VI/111/isolog
Post annotation
ISO Observation Log (ISO Data Centre, 2004) [ReadMe+ftp]

*The ISO Observation Log (36737 rows) (Note)
img(gal)
start AladinLite

Full _r TDT AOT minLam maxLam Target oStart oLen recno FOV RAJ2000 DEJ2000 cal ObsID abs PropID arcmin um um s s deg deg
1 0.009 26402770 CAM99 14.05 15.75 75944 1996-08-06T18:37:32 56 10787 48"x48" 232.6682 -16.6094 CAM_CAL 26432412


External archives :

Data at NED - NASA/IPAC Extragalactic Database : 34 Librae

Link by name to the catalogue in VizieR :

BD-16 4099 GSC 06184-01358 HD 138137 HIC 75944 HIP 75944
HR 5750 IRAS 15278-1626 2MASS J15304040-1636341 PPM 230340 SAO 159307
TYC 6184-1358-1 Gaia DR2 6258582505008556160

Search by coordinates in Vizier (radius: 5 arcsec)


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The list of all annotations to SIMBAD objects can be found here .

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2018.12.16-17:41:51

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