coord 03 18 27.096 +15 10 38.64 (ICRS, J2000, 2000.0), radius: 2 arcmin

Query : coord 03 18 27.096 +15 10 38.64 (ICRS, J2000, 2000.0), radius: 2 arcmin
CLEAR

Basic data :
HD 20512 -- Spectroscopic Binary
Distance to the center arcsec: 0.90
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:
* (HD,AG,...), PM* (2016ApJ,Ci,...), SB* (2004A&A,SBC9), 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) :
03 18 27.1575825960 +15 10 38.485632792 (Optical) [ 0.4393 0.4383 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) :
03 15 39.7487052858 +14 59 58.537580074 [ 0.4393 0.4383 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) :
167.5329547368789 -34.6679883358058 [ 0.4393 0.4383 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 :
3.720 -281.293 [0.586 0.482 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) 9.158480 [0.024878] / z(spectroscopic) 0.000031 [0.000000] / cz 9.16 [0.02]
   (NIR) A 2020AJ....160..120J
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):
20.2196 [0.5656] 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:
G8V C 1965ApJ...142..925E
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 8.20 [~] E ~
R 6.9 [~] E 2003AJ....125..984M
G 7.221677 [0.002761] C 2020yCat.1350....0G
J 5.933 [0.020] C 2003yCat.2246....0C
H 5.578 [0.034] C 2003yCat.2246....0C
K 5.492 [0.021] 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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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 (43) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 20512 GEN# +1.00020512A NLTT 10514 uvby98 100020512 A
AG+15 284 G 79-23 PPM 118986 WEB 2957
AGKR 2912 G 5-27 SAO 93377 WISEA J031827.16+151035.7
AP J03182714+1510386 GSC 01232-01000 SA 71-99 YZC 19 983
ASCC 836090 HIC 15394 SBC9 2287 YZ 15 983
BD+14 550 HIP 15394 SKY# 4964 [AKS95] 10
BD+14 550A IRAS 03156+1459 TIC 333704881 [P69] SA 71 1
Ci 18 439 IRAS F03156+1459 TYC 1232-1000-1 Gaia DR2 30321099016072320
CSI+14 550 1 LSPM J0318+1510 UBV M 9436 Gaia DR3 30321099016072320
GC 3950 LTT 11087 UBV 3194 Gaia DR1 30321094720625280
GCRV 1826 2MASS J03182714+1510386 USNO-B1.0 1051-00033477

References (99 between 1850 and 2024) (Total 99)
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 :

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Collections of Measurements


velocities : 11    V* : 1    distance : 2    ROT : 4    Fe_H : 25    PLX : 5    PM : 10    MK : 4   

   

Observing logs


ISO : 3   

   


External archives :

Data at NED - NASA/IPAC Extragalactic Database : HD 20512

Link by name to the catalogue in VizieR :

HD 20512 AG+15 284 AP J03182714+1510386 BD+14 550 G 79-23
G 5-27 GSC 01232-01000 HIC 15394 HIP 15394 IRAS 03156+1459
IRAS F03156+1459 LSPM J0318+1510 2MASS J03182714+1510386 NLTT 10514 PPM 118986
SAO 93377 TYC 1232-1000-1 USNO-B1.0 1051-00033477 uvby98 100020512 A WISEA J031827.16+151035.7
YZC 19 983 Gaia DR2 30321099016072320 Gaia DR3 30321099016072320 Gaia DR1 30321094720625280

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