Dictionary of Nomenclature of Celestial Objects
(Last update: 17-Mar-2023)

Result of query: info cati NRRF$

Details on Acronym:   NRRF
  
NRRF   (Newberg+Richards+Richmond+Fan)
 Write:<<NRRF  JHHMMSS.s+DDMMSS>>
 N:  2261
Object:?  (SIMBAD class: Unknown = Object of Unknown Nature)
  Stat:is completely incorporated in Simbad
  Note:The catalog contains 2261 sources, of which 15per100 are    extended sources and 85per100 are point sources.
    These have been measured in five SDSS passbands.
    Of these objects, over 1600 are measured in 15 fields covering    0.5 square degrees, with a limiting magnitude of r*<19.5,    similar to the photometric limit of the SDSS spectroscopic survey.
   Ref:=1999ApJS..123..377N
     byNEWBERG H.J.
, RICHARDS G.T., RICHMOND M., FAN X.
 Astrophys. J., Suppl. Ser., 123, 377-435 (1999)

    Catalog of four-color photometry of stars, galaxies, and QSOs using
    SDSS filters.
oT.1: ASTROM C and F not identified.
oTable 5: <NRRF JHHMMSS.s+DDMMSS> N=2261.
=E=Catalogue in electronic form as J/ApJS/123/377
 Originof the Acronym: p = Pre-registered to IAU Comm.5