Dictionary of Nomenclature of Celestial Objects
(Last update: 26-Sep-2023)

Result of query: info cati B3$

Details on Acronym:   B3
  
B3     (3rd Bologna survey)= (B3.1) 
 Write:<<B3  HHMM+DDdA>>
 N:  13354
Object:(Rad)  (SIMBAD class: Radio = Radio Source)
  Note:1st section of a new sky survey with the 'Northern Cross'    Radiotelescope in its present version.
    A catalogue of 13354 radio-sources, complete to 0.1 Jy in an    area of 0.78 steradian included between +37deg 15' and    +47deg 37' Declination
    Accurate positions for 1103 sources and optical identif. for    354 sources in Vigotti 1989AJ.....98..419V
   Ref:=1985A&AS...59..255F
     byFICARRA A.
, GRUEFF G., TOMASSETTI G.
 Astron. Astrophys., Suppl. Ser., 59, 255-347 (1985)

    A new Bologna sky survey at 408 MHz.

o<B3 HHMM+DDdA>, N=13354
=E=Catalogue in electronic form as VIII/37
 Originof the Acronym: A = Assigned by the author(s)

Details on Acronym:   B3.1
  
B3.1   (3rd Bologna survey, part 1)
  ***** Avoid the usage of B3.1,  prefer B3
 Originof the Acronym: A = Assigned by the author(s)