NGC 4839

Query : NGC 4839
C.D.S. - SIMBAD4 rel 1.7 - 2018.11.18CET12:25:13

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations


Basic data :
NGC 4839 -- Radio Galaxy
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:
G (Ref,ECO,...), Rad (BWE,5C,...), GiC (CAIRNS,GIN,...), rG (Ref,[MO2001b],...), X (2XMM,[FBH2004]), * (USNO), UV (FOCA), G? (Ref), ClG (BAX), BiC (Ref), GiG ([CHM2007])
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] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    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) :
12 57 24.353 +27 29 51.80 (Infrared) [ ] C 2006AJ....131.1163S
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] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    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) :
12 54 59.083 +27 46 03.90 [ ]
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] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    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) :
048.847032 +88.623833 [ ]
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) 7249 [3] / z(spectroscopic) 0.02448 [0.00001] / cz 7338.9 [3.0]
   (Opt) C 2012ApJS..203...21A
Syntax of morphological type is : mtype quality bibcode
  • mtype : Hubble morphological class (spirals, ellipticals, etc)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the morphological type reference
Morphological type:
S0 D 2008ApJS..175...86P
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 13.56 [0.10] D 2007ApJS..173..185G
B 13.02 [0.10] D 2007ApJS..173..185G
V 12.06 [0.10] D 2007ApJS..173..185G
J 10.086 [0.025] C 2006AJ....131.1163S
H 9.331 [0.030] C 2006AJ....131.1163S
K 9.199 [0.036] C 2006AJ....131.1163S
u (AB) 15.300 [0.008] B 2012ApJS..203...21A
g (AB) 13.385 [0.002] B 2012ApJS..203...21A
r (AB) 12.459 [0.002] B 2012ApJS..203...21A
i (AB) 12.025 [0.002] B 2012ApJS..203...21A
z (AB) 11.782 [0.002] B 2012ApJS..203...21A
SIMBAD with radius arcmin
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within radius 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!).
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 ) :

: 8 : 2940 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (51) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 4839 LEDA 44298 4W 1254+27W01 [DLB87] C1
BAX 194.3515+27.4977 2MASX J12572435+2729517 7W 1254+27W01 [FBH2004] X489
BWE 1254+2745 MCG+05-31-025 2XMM J125724.3+272952 [FWB89] Galaxy 313
5C 4.51 MPMM 206 Z 1255.0+2746 [HHM2010] 194.35151+27.49782
7C 125458.50+274615.00 NGP9 F323-1098719 Z 160-39 [K94] 125459.19+274605.5
CAIRNS J125724.39+272951.6 NVSS J125724+272955 [BTM97] ACO 1656 3 [L84] A1656-G3
ECO 3776 10P 197 [CHM2007] HDC 745 J125724.35+2729517 [MHR2010] 194.3515+27.4978
FOCA 0728-803 SDSS J125724.35+272952.1 [CHM2007] LDC 926 J125724.35+2729517 [MO2001b] J125724.4+272950.4
GB6 B1254+2746 TT 4 [CNM2001] 213 [MOL2003] A1656 J125724+272951
87GB 125453.1+274559 UGC 8070 [CRJ2004] J1257.4+2729 [OSR2002] c102
GIN 758 USNO-A2.0 1125-06622075 [D80] ACO 1656 31 [ZBO89] ACO 1656-1
GMP 4928 UZC J125724.2+272954 [DC78] UGC 8070 EQ 1254+277
GP 886 VLSS J1257.3+2729 [DFO95] 172

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References (405 between 1850 and 2019) (Total 405)
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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                 or select by : (not exhaustive, explanation here)


Collections of Measurements


distance : 5    velocities : 19   

   

Observing logs


ISO : 2   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : NGC 4839

Link by name to the catalogue in VizieR :

NGC 4839 BWE 1254+2745 GMP 4928 2MASX J12572435+2729517 NVSS J125724+272955
SDSS J125724.35+272952.1 UGC 8070 USNO-A2.0 1125-06622075

Search by coordinates in Vizier (radius: 5 arcsec)


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 .
The list of all annotations to SIMBAD objects can be found here .

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2018.11.18-12:25:13

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