HD 66811

Query : HD 66811

Basic data :
* zet Pup -- BY Dra Variable
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:
* (1971PW&SO,*,...), X (2E,1ES,...), UV (CEL,EUVE,...), Rad (MOST,[BVP2003]), BY* (2012NewAR), Em* (EM*), Pu* (2009yCat), V* (V*), NIR (2MASS), 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) :
08 03 35.04754 -40 00 11.3321 (Optical) [ 0.79 0.70 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
FK4 coord. (ep=B1950 eq=1950) :
08 01 49.55118 -39 51 40.7918 [ 0.79 0.70 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) :
255.97588294 -04.70568514 [ 0.79 0.70 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 :
-29.71 16.68 [0.08 0.09 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) -23.90 [2.9] / z(~) -0.000080 [0.000010] / cz -23.90 [2.90]
   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):
3.01 [0.10] 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:
O4I(n)fp C 2014ApJS..211...10S
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 0.89 [~] C 2002yCat.2237....0D
B 1.98 [~] C 2002yCat.2237....0D
V 2.25 [~] C 2002yCat.2237....0D
R 2.36 [~] C 2002yCat.2237....0D
G 2.254294 [0.009032] C 2022yCat.1355....0G
I 2.58 [~] C 2002yCat.2237....0D
J 2.76 [~] C 2002yCat.2237....0D
H 2.82 [~] C 2002yCat.2237....0D
K 2.90 [~] 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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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!).
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Some important notes on this object about identifications and objects associations.
notes:

  • WDS J08036-4000 exists only in the notes of the WDS, but is not listed as a binary in the main catalog.


The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (54) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* zet Pup GC 10947 MOST 0801-398 UBV 7751
ALS 949 GCRV 5359 N30 1854 UBV M 13965
CD-39 3939 GEN# +1.00066811 NAME Naos UCAC4 250-023940
CEL 2154 GOS G255.98-04.71 01 PMC 90-93 223 uvby98 100066811
CGO 179 GSC 07663-04093 PPM 312524 V* zet Pup
CMC 198752 HD 66811 ROT 1295 WEB 7714
CPC 18 3433 HIC 39429 1RXS J080335.8-400110 2XMM J080335.0-400011
CPD-39 2011 HIP 39429 SACS 175 [B10] 2141
2E 1910 HR 3165 SAO 198752 [BVP2003] S2
2E 0801.8-3951 IRAS 08018-3951 SKY# 15171 [HJ56] 111
EM* CDS 710 JP11 1626 SRS 30306 EQ 0801-39.8
1ES 0801-39.8 LS 949 TD1 11723 Gaia DR3 5534788672055388032
EUVE J0803-40.0 2MASS J08033506-4000112 TIC 133422778
FK5 306 MCW 547 TYC 7663-4093-1

References (1154 between 1850 and 2024) (Total 1154)
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 : 7    V* : 1    ROT : 1    Fe_H : 3    PLX : 2    PM : 4    MK : 26   

   

Observing logs


herschel : 4    IUE : 54    XMM : 11   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : HD 66811

Link by name to the catalogue in VizieR :

ALS 949 CD-39 3939 CEL 2154 CPD-39 2011 2E 1910
EUVE J0803-40.0 FK5 306 GSC 07663-04093 HD 66811 HIC 39429
HIP 39429 HR 3165 IRAS 08018-3951 LS 949 2MASS J08033506-4000112
PPM 312524 1RXS J080335.8-400110 SAO 198752 TD1 11723 TYC 7663-4093-1
UCAC4 250-023940 uvby98 100066811 V* zet Pup Gaia DR3 5534788672055388032

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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 (2)

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report an error concerning the data of this object




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