Dictionary of Nomenclature of Celestial Objects
(Last update: 15-Nov-2019)

Result of query: info cati 4FGL$

Details on Acronym:   4FGL
   4FGL (Fourth Fermi/LAT catalog) Write:<<4FGL JHHMM.m+DDMM>>
<<4FGL JHHMM.m+DDMM{e|i|s}>> N: 5065 Object:(Gamma)  (SIMBAD class: gamma = gamma-ray source) Note:Fermi is a NASA satellite launched in June 2008. The LAT instrument covers the range 30 MeV to 300 GeV. It provides a gamma-ray all-sky survey. The third Fermi catalog is based on the first 4 yr of science data.
More information can be found at http://fermi.gsfc.nasa.gov/ssc/
Format JHHMM.m+DDMMe|i|s: m is decimal minutes of RA; in the name RA and DE are truncated at 0.1 decimal minutes and 1', respectively; the letter at the end can be: "z" (extended source), "i" (for Crab nebula inverse Compton), or "s" (for Crab nebula synchrotron).
See also 0FGL, 1FGL, 2FGL, 3FGL. Ref:=arXiv:1902.10045 Originof the Acronym: A = Assigned by the author(s)

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