CDS

Gacrux

Query : Gacrux

Basic data :
* gam Cru -- High Proper Motion 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: 		* (*,CD,...), ** (CCDM,IDS,...), PM* (LTT,NLTT), V* (CSV,NSV), IR (IRAS,RAFGL), NIR (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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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) : 		12 31 09.95961 -57 06 47.5684 (Optical) [ 1.23 1.06 90 ] A 2007A&A...474..653V
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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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
FK5 coord. (ep=J2000 eq=2000) : 		12 31 09.96330 -57 06 47.5748 [ 1.23 1.06 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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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) : 		12 28 22.71894 -56 50 00.2335 [ 1.23 1.06 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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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) : 		300.16921089 +05.64975178 [ 1.23 1.06 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 : 		28.23 -265.08 [0.14 0.12 0] A 2007A&A...474..653V
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) 21.00 [0.1] / z(~) 0.000070 [0.000000] / cz 21.00 [0.10]
   A 2006AstL...32..759G
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): 		36.83 [0.18] A 2007A&A...474..653V
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: 		M3.5III B 1989ApJS...71..245K
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 (8) :
U 5.01 [~] C 2002yCat.2237....0D
B 3.23 [~] C 2002yCat.2237....0D
V 1.64 [~] C 2002yCat.2237....0D
R -0.02 [~] C 2002yCat.2237....0D
I -1.44 [~] C 2002yCat.2237....0D
J -1.994 [0.099] C 2003yCat.2246....0C
H -2.90 [~] C 2002yCat.2237....0D
K -3.12 [~] C 2002yCat.2237....0D
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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sedIcon
within 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!). sed-help-icon
Some important notes on this object about identifications and objects associations.
notes:

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (38) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

LTT 4752 GEN# +1.00108903 N30 2892 TIC 272314138
* gam Cru GJ 470 NAME Gacrux TYC 8654-3422-1
CCDM J12312-5706A HD 108903 NLTT 30973 UBV 11239
CD-56 4504 HIC 61084 NSV 5672 UBV M 18297
CPC 20 3840 HIP 61084 PPM 341058 WDS J12312-5707A
CPD-56 5272 HR 4763 RAFGL 4150 WEB 10875
CSV 101285 IDS 12256-5633 A SAO 240019 [DS98] 174
FK5 468 IRAS 12283-5650 SKY# 23406 [L91b] 208
GC 17052 JP11 2226 SV* BV 839
GCRV 7528 2MASS J12310993-5706474 SV* ZI 944

References (19 between 2018 and 2023) (Total 276)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Collections of Measurements


velocities : 14    V* : 1    PLX : 2    PM : 4    MK : 14   

   

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)

velocities (14) 

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |   21.4                |  (  47)|s , ,    ,           |          |       |  |1995A&AS..114..269D|

v* (1) 

 |     vartyp     |    Vmax     p     Vmin    |   period   | epoch (JD)   |D/rt %|     reference     |
 -----------------------------------------------------------------------------------------------------
 |                |   1.60    : V    1.67    :|            |              |      |1981NVS...C......0K|

plx (2) 

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
 |  37.09    :   0.67       |1997A&A...323L..49P|

pm (4) 

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |  +28.23 [    0.14 ]| -265.08 [    0.12 ]|ICRS|2007A&A...474..653V|

mk (14) 

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
 |  /   |Mb                                  |1993yCat.3135....0C|
Observing logs


ISO : 9    IUE : 100    XMM : 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 (9)

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[image] (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  22300101  SWS99   -1.00   -1.00  Arbitrary pointing              1996-06-26T20:06:30   1218      8805  ------N/A------     187.7913  -57.1131 *    SWS_CAL       6223I882
    2     0.014  59401502  SWS06    2.44   43.91  HR4763 GAM-CRU                  1997-07-02T02:49:37   3652     25073  33"x20"             187.7913  -57.1130      SWS_CAL       SWS_594 
    3     0.014  60800502  SWS06    2.39   40.40  HR4763 GAM-CRU                  1997-07-15T23:56:23   4580     25741  33"x20"             187.7913  -57.1130      SWS_CAL       SWS_608 
    4     0.014  62200601  SWS06    2.44   40.39  HR4763 GAM-CRU                  1997-07-30T00:13:33   2704     26310  33"x20"             187.7913  -57.1130      SWS_CAL       SWS_622 
    5     0.014  64300503  SWS06    2.44   42.58  HR4763 GAM-CRU                  1997-08-19T22:43:31   5630     27086  33"x20"             187.7913  -57.1130      SWS_CAL       SWS_643 
    6     0.016  07901307  SWS01    2.38   45.21  gamma Cru                       1996-02-04T10:34:54   1816      2487  33"x20"             187.7912  -57.1130      AHESKE   +    MOLBANDS
    7     0.016  60900804  SWS01    2.38   45.20  Gamma Cru                       1997-07-17T03:32:40   6538     25785  33"x20"             187.7912  -57.1130      CWAELKEN +    STARMOD 
    8     0.021  22300252  SWS06    2.44   40.39  HR4763 GAM-CRU                  1996-06-26T20:27:30   2900      8806  33"x20"             187.7912  -57.1129      SWS_CAL       SWSPV_7 
    9     0.021  25806177  SWS01    2.38   45.21  HR4763 GAM-CRU                  1996-08-01T08:29:32   1912     10546  33"x20"             187.7912  -57.1129      SWS_CAL       SWSPV_7

iue (100) 

 |Homogenized Name:  ComplID   |PROG |CL|D CAM IMAGE A| FES  MD|Obs.da  Time |ExpTim|m|CEB|S|      Comments      |F|     reference     |
 ---------------------------------------------------------------------------------------------------------------------------------------
 |HD 108903       :            |OD90K|49|L SWP 30114 L| 5427 FU|870118 022000|001800| |350|G|E=183,C=42,B=20     |*|1996IUEML.C......0I|

xmm (1)

The 3 columns in color are computed by VizieR, and are not part of the original data.
B/xmm/xmmlog
Post annotation 		XMM-Newton Observation Log (XMM-Newton Science Operation Center, 2012) [ReadMe+ftp]
2002yCat....102009X

The XMM-Newton Observation log (2023-09-18)[image/fits] (17196 rows)		img(gal)
start AladinLite 
 Full      _r        Obsno     PropDate   Object                           RAJ2000    DEJ2000           Obs0          ObsDur Image  PPSp   FITS XSAlink
        arcmin                    s                                         deg        deg              s              s                             


    1    0.0112  0201950901  2005-02-04  HR 4763                         187.79130  -57.11306  2004-01-16T04:59:39    14952 N      PPSp  0201950901 Y

External archives :

Data at NED - NASA/IPAC Extragalactic Database : Gacrux

Link by name to the catalogue in VizieR :

CCDM J12312-5706A CD-56 4504 CPD-56 5272 FK5 468 GJ 470
HD 108903 HIC 61084 HIP 61084 HR 4763 IRAS 12283-5650
2MASS J12310993-5706474 NLTT 30973 NSV 5672 PPM 341058 RAFGL 4150
SAO 240019 TYC 8654-3422-1 WDS J12312-5707A [L91b] 208

Search by coordinates in Vizier (radius: 6 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

display existing annotations (1)

add an annotation to this object

report an error concerning the data of this object

2023.09.24-13:41:27

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