chi Oph

Query : chi Oph

Basic data :
* chi Oph -- Be 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: 		Ir* (), * (*,ALS,...), V* (V*,AAVSO), UV (TD1,[SC96]), Be* (1982IAUS), SB* (SBC9), Em* (EM*), NIR (2MASS), MIR (WISEA), IR (IRAS)
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) : 		16 27 01.4355697915 -18 27 22.499961252 (Optical) [ 0.1688 0.1007 90 ] A 2020yCat.1350....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] : 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) : 		16 27 01.4374572351 -18 27 22.485267781 [ 0.1688 0.1007 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) : 		16 24 07.3087653663 -18 20 39.973494309 [ 0.1688 0.1007 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) : 		357.9328089995290 +20.6766002105219 [ 0.1688 0.1007 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 : 		-5.378 -22.308 [0.215 0.158 90] A 2020yCat.1350....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) -19.00 [2.1] / z(~) -0.000063 [0.000007] / cz -19.00 [2.10]
   C 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): 		6.5402 [0.1961] A 2020yCat.1350....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: 		B2Vne 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 (9) :
U 3.95 [~] C 2002yCat.2237....0D
B 4.71 [~] C 2002yCat.2237....0D
V 4.43 [~] C 2002yCat.2237....0D
R 3.97 [~] C 2002yCat.2237....0D
G 4.199642 [0.005121] C 2022yCat.1355....0G
I 3.73 [~] C 2002yCat.2237....0D
J 3.46 [~] C 2002yCat.2237....0D
H 3.26 [~] C 2002yCat.2237....0D
K 3.02 [~] 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

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 2 : 5755 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (40) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* chi Oph HGAM 653 ROT 2338 WEB 13630
* 7 Oph HIC 80569 SAO 159918 WISEA J162701.42-182722.6
ALS 15807 HIP 80569 SBC9 903 YZ 0 6337
BD-18 4282 HR 6118 SKY# 29652 YZ 108 5939
EM* MWC 241 IRAS 16241-1820 TD1 19175 [B10] 4183
FK5 3298 IRAS F16241-1820 TIC 204191276 [JE82] 824
GC 22117 JP11 2743 TYC 6207-1170-1 [SC96] Oph 64
GCRV 9462 2MASS J16270145-1827225 UBV 21650 AAVSO 1621-18
GEN# +1.00148184 PMC 90-93 1378 uvby98 100148184 Gaia DR3 4323764712422936704
HD 148184 PPM 231703 V* chi Oph Gaia DR2 4323764712417428864

References (36 between 2019 and 2024) (Total 598)
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 : 9    distance : 3    ROT : 3    Fe_H : 2    PLX : 4    PM : 5    MK : 16   

   

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 (9) 

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |  -19.4                |  (    )|s , ,    ,           |          |       |  |1995A&AS..114..269D|

distance (3) 

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |  152.901   pc  |  -4.5845     +4.5845  |paral   |2020yCat.1350....0G|

rot (3) 

 |  Vsini  [  err   ] (mes)|Q|     reference     |
 -------------------------------------------------
 | 150.0   [  3.0   ] (   )| |2018MNRAS.474.5287A|

fe_h (2) 

 | Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 ------------------------------------------------------------
 | 30000 3.53  |        |         |     |2018MNRAS.474.5287A|

plx (4) 

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
 |   6.5402  :   0.1961     |2020yCat.1350....0G|

pm (5) 

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |   -5.378[    0.215]|  -22.308[    0.158]|ICRS|2020yCat.1350....0G|

mk (16) 

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
 |  /   |B0V                                 |2018MNRAS.474.5287A|
Observing logs


ISO : 7    IUE : 13   

   

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 (7)

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     0.022  45400703  LWS02   43.47  177.33  CHI OPH                         1997-02-12T14:53:27    644     19723  84" D               246.7557  -18.4565      RSTARK   +    PHASES  
    2     0.042  10201610  SWS02    2.61   39.16  Chi Oph                         1996-02-27T15:36:28   1858      3581  33"x20"             246.7553  -18.4565      RWATERS  +    BESTARS 
    3     0.042  10201611  PHT40    2.47    8.95  Chi Oph                         1996-02-27T16:08:08    140      3582  24"x24"             246.7553  -18.4565      RWATERS  +    BESTARS 
    4     0.042  82400110  PHT03    8.33   28.38  Chi Oph                         1998-02-16T09:30:04    304     34286  52" D               246.7553  -18.4565      NTRAMS   +    BEPHOTO 
    5     0.042  82400111  PHT22   54.76  116.92  Chi Oph                         1998-02-16T09:35:56   1258     34287  227"x227"           246.7553  -18.4565      NTRAMS   +    BEPHOTO 
    6     0.042  82400112  PHT22  128.33  202.26  Chi Oph                         1998-02-16T09:57:46   1018     34288  273"x273"           246.7553  -18.4565      NTRAMS   +    BEPHOTO 
    7    16.864  45400722  LWS02   43.47  177.33  CHI OPH-ref                     1997-02-12T15:05:21    644     19724  84" D               246.6069  -18.2134      RSTARK   +    PHASES

iue (13) 

 |Homogenized Name:  ComplID   |PROG |CL|D CAM IMAGE A| FES  MD|Obs.da  Time |ExpTim|m|CEB|S|      Comments      |F|     reference     |
 ---------------------------------------------------------------------------------------------------------------------------------------
 |HD 148184       :            |GD2GH|20|L SWP 06774 S|  562 FU|791006 220000|000004| |500|G|C=170,B=15          |*|1996IUEML.C......0I|

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : chi Oph

Link by name to the catalogue in VizieR :

ALS 15807 BD-18 4282 FK5 3298 HD 148184 HIC 80569
HIP 80569 HR 6118 IRAS 16241-1820 IRAS F16241-1820 2MASS J16270145-1827225
PPM 231703 SAO 159918 TD1 19175 TYC 6207-1170-1 uvby98 100148184
V* chi Oph WISEA J162701.42-182722.6 Gaia DR3 4323764712422936704 Gaia DR2 4323764712417428864

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Annotations :
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