Theta Hydrae

Query : Theta Hydrae C.D.S. - SIMBAD4 rel 1.225 - 2015.09.02CEST12:39:45

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


Basic data :
* tet Hya -- Spectroscopic binary
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:
* (*,AG,ASCC,BD,CSI,FK5​,GC,GCRV,GEN#,GSC​,HD,HIC,HIP,HR​,JP11,N30,PLX,PMC​,PPM,Renson,ROT,SAO​,SKY#,TYC,UBV,USNO,uvby98,YZ,[HFE83]), UV (2EUVE,EUVE,2RE,TD1), ** (ADS,CCDM,IDS,WDS), PM* (LSPM,LTT,NLTT), IR (AKARI,IRAS,2MASS), X (RE,RX,1RXS), SB* (Ref), WD* (WD)
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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
09 14 21.86007 +02 18 51.3432 ( Optical ) [ 15.40 9.86 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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
09 14 21.860 +02 18 51.34 [ 15.40 9.86 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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
09 11 45.85 +02 31 34.9 [ 88.05 58.08 0 ]
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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
228.7722 +32.5294 [ 15.40 9.86 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 :
114.64 -313.94 [1.75 1.12 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) -10.70 [0.3] / z(~) -0.000036 [0.000001] / cz -10.70 [0.30]   (~) 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:
28.74 [1.55] A 2007A&A...474..653V
Spectral type is made of 3 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
  • bibcode : bibcode of the spectral type reference
Spectral type:
B9.5V+DA1.6 C 2013MNRAS.435.2077H
Syntax of fluxes (or magnitudes) is : "filter-name flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, J, H, K, u, g, r, i, z
  • 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 (7) :
B 3.82 [~] C ~
V 3.88 [~] C ~
R 3.9 [~] E 2003AJ....125..984M
I 4.0 [~] E 2003AJ....125..984M
J 3.455 [0.182] D 2003yCat.2246....0C
H 4.040 [0.020] C 2003yCat.2246....0C
K 3.943 [0.016] C 2003yCat.2246....0C
SIMBAD with radius arcmin
Interactive AladinLite view
Back
sedIcon
VizieR photometry viewer    sed-help-icon
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 (53) :

* tet Hya GEN# +1.00079469 PLX 2200 TD1 13698
* 22 Hya GSC 00227-02544 PLX 2200.00 TYC 227-2544-1
ADS 7253 A HD 79469 PMC 90-93 250 UBV 8842
AG+02 1244 HIC 45336 PPM 155592 UBV M 15207
AKARI-IRC-V1 J0914219+021849 HIP 45336 2RE J091421+021825 USNO-B1.0 0923-00221992
ASCC 1130574 HR 3665 2RE J0914+021 uvby98 100079469
BD+02 2167 IDS 09092+0244 A Renson 22550 WDS J09144+0219A
CCDM J09144+0219A IRAS 09117+0231 RE J0914+021 WD 0911+023
CSI+02 2167 1 JP11 1787 RE J091420+021830 YZ 2 3711
2EUVE J0914+02.3 LSPM J0914+0218 ROT 1453 [HFE83] 646
EUVE J0914+02.3 LTT 12431 RX J0914.3+0219 [ZEH2003] RX J0914.3+0219 1
FK5 347 2MASS J09142189+0218511 1RXS J091422.0+021916
GC 12743 N30 2190 SAO 117527
GCRV 6036 NLTT 21281 SKY# 17821

Plots and Images

plot

radius arcmin


CDS portal

CDS Simplay
(requires flash)

Aladin applet

References (178 between 1850 and 2015)
Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

from: to:

                                  Sort reference summaries by : (not exhaustive, explanation here)

                                 


Measurements (17 types) :


Fe_H : 2    GEN : 1    Hbet1 : 4    IRAS : 1    IUE : 14    JP11 : 1    MK : 13    oRV : 8    PLX : 7    PM : 4    pos : 3    posa : 1   
ROT : 4    SAO : 1    UBV : 14    uvby1 : 4    velocities : 9   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database

Catalogue information from VizieR :

Generic search by coordinates (radius: 7 arcsec)

AG+02 1244 BD+02 2167 CCDM J09144+0219A EUVE J0914+02.3 FK5 347
GSC 00227-02544 HD 79469 HIC 45336 HIP 45336 HR 3665
IRAS 09117+0231 LSPM J0914+0218 2MASS J09142189+0218511 NLTT 21281 PPM 155592
2RE J091421+021825 2RE J0914+021 1RXS J091422.0+021916 SAO 117527 TYC 227-2544-1
USNO-B1.0 0923-00221992 WDS J09144+0219A WD 0911+023

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

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object



2015.09.02-12:39:45

© UDS/CNRS

Contact