V833 Tau

Query : V833 Tau

Basic data :
HD 283750 -- 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: 		* (1954ArA,HD,...), X (2E,1ES,...), ** (**,CCDM,...), PM* (2016ApJ,G,...), SB* (2018A&A,CABS,...), UV (2EUVE,EUVE,...), BY* (2017ARep), Er* ([GKL99]), V* (V*), NIR (2MASS), MIR (WISEA)
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) : 		04 36 48.2421502608 +27 07 55.888214520 (Optical) [ 0.0429 0.0266 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
FK4 coord. (ep=B1950 eq=1950) : 		04 33 41.7769652658 +27 02 01.037914125 [ 0.0429 0.0266 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) : 		172.5161388705758 -13.3581975264748 [ 0.0429 0.0266 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 : 		232.170 -147.481 [0.062 0.042 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) 35.51 [0.04] / z(spectroscopic) 0.000118 [0.000000] / cz 35.51 [0.04]
   (Opt) A 2018A&A...619A..81H
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): 		57.4873 [0.0471] 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: 		K2.5Ve C 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 (6) :
B 9.354 [0.013] D 2011A&A...531A..92R
R 7.4 [~] E 2003AJ....125..984M
G 7.745692 [0.003188] C 2020yCat.1350....0G
J 5.945 [0.023] C 2003yCat.2246....0C
H 5.400 [0.018] C 2003yCat.2246....0C
K 5.240 [0.023] C 2003yCat.2246....0C
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!). sed-help-icon
Some important notes on this object about identifications and objects associations.
notes:

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

: 2
The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 1 		: 3143 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (57) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 283750 EUVE J0436+27.1 PMSC 04306+2656Aab V* V833 Tau
** GIC 49A GEN# +5.20253301 PPM 93630 WDS J04368+2708A
AG+27 445 G 39-28 2RE J043648+270754 WEB 4125
AGKR 4080 G 8-44 2RE J0436+270 WISEA J043648.42+270754.3
ASCC 659502 GJ 171.2 A RE J043647+270746 YZC 24 2118
BD+26 730 GJ 171.2 RE J0436+270 YZ 27 2118
CABS 42 HG 8-2 RX J0436.8+2708 [FS2003] 0202
CCABS 36 HIC 21482 1RXS J043648.2+270759 [GKL99] 122
CCDM J04368+2708A HIP 21482 SAO 76672 [RSP2011] 461
Cl* Melotte 25 EGG 25A IDS 04306+2655 A SBC9 258 Gaia DR3 151650076838458112
Cl Melotte 25 301 LSPM J0436+2707 TIC 125838647 Gaia DR2 151650076838458112
2E 1103 LTT 11465 TYC 1838-564-1 Gaia DR1 151650072541569280
2E 0433.7+2701 2MASS J04364822+2707559 UBV 4435
1ES 0433+27.0 NLTT 13601 UBV M 41544
2EUVE J0436+27.1 PMSC 04306+2656A USNO-B1.0 1171-00070436

References (272 between 1850 and 2024) (Total 272)
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


velocities : 5    V* : 1    distance : 2    ROT : 3    Fe_H : 5    PLX : 6    PM : 8    MK : 4   

   

Observing logs


IUE : 23   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V833 Tau

Link by name to the catalogue in VizieR :

HD 283750 AG+27 445 BD+26 730 CABS 42 CCDM J04368+2708A
2E 1103 EUVE J0436+27.1 G 39-28 G 8-44 GJ 171.2 A
GJ 171.2 HIC 21482 HIP 21482 LSPM J0436+2707 2MASS J04364822+2707559
NLTT 13601 PPM 93630 2RE J043648+270754 2RE J0436+270 1RXS J043648.2+270759
SAO 76672 TYC 1838-564-1 USNO-B1.0 1171-00070436 V* V833 Tau WDS J04368+2708A
WISEA J043648.42+270754.3 YZC 24 2118 [GKL99] 122 Gaia DR3 151650076838458112 Gaia DR2 151650076838458112
Gaia DR1 151650072541569280

Search by coordinates in Vizier (radius: 6 arcsec)

Indications mainly about references on other documents
Notes (1) :

Annotations :
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