coord 04 57 13.2504 -28 07 53.040 (ICRS, J2000, 2000.0), radius: 2 arcmin

Query : coord 04 57 13.2504 -28 07 53.040 (ICRS, J2000, 2000.0), radius: 2 arcmin
CLEAR

Basic data :
RX J0457.2-2807 -- White Dwarf
Distance to the center arcsec: 0.98
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:
* (2013MNRAS,GSC,...), X (RE,2RXP,...), UV (2EUVE,EUVE,...), IR (2MASS,WISEA,...), WD* (2006A&A,WD), PM* (2012yCat), V* (1SWASP)
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 57 13.3208333976 -28 07 52.750783812 (Optical) [ 0.1960 0.2439 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 55 13.7951747991 -28 12 28.816120209 [ 0.1960 0.2439 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) :
229.2936875073845 -36.1671404040838 [ 0.1960 0.2439 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 :
51.443 12.626 [0.275 0.320 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) 70.9 [3.2] / z(spectroscopic) 0.000237 [0.000011] / cz 70.91 [3.20]
   (Opt) C 2020A&A...638A.131N
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):
7.9641 [0.2811] 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:
DA.8 C 2011ApJ...743..138G
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 (11) :
U 12.44 [~] D 2013MNRAS.431..240O
B 13.65 [0.03] D 2012yCat.1322....0Z
V 13.92 [0.02] D 2012yCat.1322....0Z
R 14.23 [0.09] E 2012yCat.1322....0Z
G 13.930486 [0.003435] C 2020yCat.1350....0G
J 14.68 [0.03] C 2003yCat.2246....0C
H 14.85 [0.07] C 2003yCat.2246....0C
K 14.72 [0.11] D 2003yCat.2246....0C
g 13.68 [0.04] D 2012yCat.1322....0Z
r 14.20 [0.08] D 2012yCat.1322....0Z
i 14.64 [0.07] D 2012yCat.1322....0Z
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!).
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The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (25) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

WD 0455-282 2RE J0457-280 2RXP J045712.5-280757 WISEA J045713.31-280753.0
EC 04552-2812 2RE J045712-280808 RX J0457.2-2807 WISE J045713.31-280752.9
2EUVE J0457-28.1 RE J0457-28 1RXS J045712.5-280754 Gaia DR2 4880286371109059712
EUVE J0457-28.1 RE J0457-280 1SWASP J045713.22-280752.8 Gaia DR3 4880286371109059712
GSC 06472-00818 RE J0457-285 TIC 711914
2MASS J04571330-2807527 RE J0457-281 UCAC4 310-006036
MCT 0455-2812 RE J045712-280810 WD 0455-28

References (110 between 1850 and 2023) (Total 110)
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 :

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                 or select by : (not exhaustive, explanation here)


Collections of Measurements


velocities : 2    distance : 4    Fe_H : 6    PLX : 2    PM : 2    MK : 5   

   

Observing logs


IUE : 10   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : RX J0457.2-2807

Link by name to the catalogue in VizieR :

WD 0455-282 EUVE J0457-28.1 GSC 06472-00818 2MASS J04571330-2807527 2RE J0457-280
2RE J045712-280808 1RXS J045712.5-280754 UCAC4 310-006036 WD 0455-28 WISEA J045713.31-280753.0
WISE J045713.31-280752.9 Gaia DR2 4880286371109059712 Gaia DR3 4880286371109059712

Search by coordinates in Vizier (radius: 5 arcsec)


Annotations :
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2022.12.10-10:04:19

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