42 ori

Query : 42 ori

Basic data :
* c Ori -- Young Stellar Object
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:
* (*,ALS,...), ** (**,ADS,...), X (CXORRS,2E,...), V* (CSV,NSV), IR (IRAS,[KSP2003]), Y*O (ISOY), SB* (2020A&A), AB? (1991A&AS), UV (CEL), NIR (2MASS), MIR (WISE)
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) :
05 35 23.1646530684 -04 50 18.059784995 (Optical) [ 0.7644 0.8575 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
FK5 coord. (ep=J2000 eq=2000) :
05 35 23.1661166414 -04 50 18.078594890 [ 0.7644 0.8575 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
FK4 coord. (ep=B1950 eq=1950) :
05 32 55.0793204267 -04 52 10.815471774 [ 0.7644 0.8575 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) :
208.5036728107563 -19.1091489058842 [ 0.7644 0.8575 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 :
-4.124 -1.974 [0.888 0.827 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) 47.10 [3] / z(spectroscopic) 0.000157 [0.000010] / cz 47.10 [3.00]
   (Opt) C 1970ApJS...19..387A
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):
6.5163 [1.5234] 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:
B1V+? C 2020A&A...639A..81B
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 3.46 [~] C 2002yCat.2237....0D
B 4.40 [~] C 2002yCat.2237....0D
V 4.59 [~] C 2002yCat.2237....0D
R 4.67 [~] C 2002yCat.2237....0D
G 4.485090 [0.005410] C 2022yCat.1355....0G
I 4.85 [~] C 2002yCat.2237....0D
J 5.361 [0.258] D 2003yCat.2246....0C
H 5.05 [0.05] C 2003yCat.2246....0C
K 5.056 [0.018] C 2003yCat.2246....0C
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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 (60) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* c Ori GCRV 3421 2MASS J05352315-0450180 uvby98 900010659
* 42 Ori GEN# +9.00010659D MCW 336 WDS J05354-0450A
** DA 4A GEN# +9.00010659 NSV 2318 WDS J05354-0450Aa,Ab
** TOK 430 GEN# +2.19760659 Parenago 1970 WEB 5133
ADS 4187 A GSC 04774-00928 PLX 1277 WH 295
ALS 14787 HD 37018 PPM 188224 WISE J053523.16-045018.2
BD-04 1185 HGAM 435 ROT 874 YZ 94 1665
Brun 659 HIC 26237 SAO 132320 [B10] 1364
CCDM J05354-0450A HIP 26237 SKY# 9030 [GC94b] 138
CEL 828 HR 1892 SV* ZI 431 [GCS95] 252
CSV 100593 IDS 05304-0454 A TIC 427393354 [KSP2003] J053522.91-045021.8
CXORRS J053523.1-045019 IRAS 05329-0452 TYC 4774-928-1 [RRS2004] NOFF W134
2E 1374 ISOY J053523.15-045018.2 UBV 5509 [TVZ96] 223
2E 0532.9-0451 JP11 5700 UBV M 51694 Gaia DR2 3209572852067563392
GC 6934 JP11 5699 UCAC3 171-23405 Gaia DR3 3209572852067563392

References (26 between 2019 and 2024) (Total 218)
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 : 16    ROT : 3    Fe_H : 1    PLX : 3    PM : 5    MK : 12   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

velocities (16)

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |   30.0                |  (   9)|s , ,    ,           |          |       |  |1995A&AS..114..269D|
 

rot (3)

 |  Vsini  [  err   ] (mes)|Q|     reference     |
 -------------------------------------------------
 |  20     [        ] (   )|D|2002ApJ...573..359A|
 

fe_h (1)

 | Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 ------------------------------------------------------------
 | 27700       |        |         |     |1995A&AS..110..553S|
 

plx (3)

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
 |   6.5163  :   1.5234     |2020yCat.1350....0G|
 

pm (5)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |   -4.124[    0.888]|   -1.974[    0.827]|ICRS|2020yCat.1350....0G|
 

mk (12)

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
 |  /   |B1V+?                               |2020A&A...639A..81B|
 
Observing logs


IUE : 2   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

iue (2)

 |Homogenized Name:  ComplID   |PROG |CL|D CAM IMAGE A| FES  MD|Obs.da  Time |ExpTim|m|CEB|S|      Comments      |F|     reference     |
 ---------------------------------------------------------------------------------------------------------------------------------------
 |HD 37018        :            |OBFGS|20|H SWP 20782 L|  443 FU|830825 104000|000035| |402|G|C=175,B=32          |*|1996IUEML.C......0I|
 

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : 42 ori

Link by name to the catalogue in VizieR :

ALS 14787 BD-04 1185 CCDM J05354-0450A CEL 828 2E 1374
GSC 04774-00928 HD 37018 HIC 26237 HIP 26237 HR 1892
IRAS 05329-0452 2MASS J05352315-0450180 NSV 2318 PLX 1277 PPM 188224
SAO 132320 TYC 4774-928-1 UCAC3 171-23405 uvby98 900010659 WDS J05354-0450A
WDS J05354-0450Aa,Ab WISE J053523.16-045018.2 Gaia DR2 3209572852067563392 Gaia DR3 3209572852067563392

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