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

Result of query: info cati EM* MWC$

Details on Acronym:   MB
  
MB     (Merrill+Burwell)
  ***** Avoid the usage of MB,  prefer MWC

Details on Acronym:   Merrill
  
Merrill (Merrill+)
  ***** Avoid the usage of Merrill,  prefer MWC

Details on Acronym:   MWC
  
MWC    (Mount Wilson obs., Catalog)= (MB) = (Merrill) 
 Write:<<Em* MWC  NNNNA>>
 N:  1088
Object:Em* (15PN)  (SIMBAD class: EmLine* = Emission-line Star)
  Stat:is completely incorporated in Simbad
  Note:15 are compiled as PN, see ref. 1983A&AS...54..315A    Extended by AS.
   Ref:=1933ApJ....78...87M
     byMERRILL P.W.
, BURWELL C.G.
 Astrophys. J., 78, 87-140 (1933)

    Catalogue and bibliography of stars classes B and A whose spectra have
    bright hydrogen lines.
oTable 1: <Em* MWC NNN> (Nos 1-416)
   Ref:=1943ApJ....98..153M
     byMERRILL P.W.
, BURWELL C.G.
 Astrophys. J., 98, 153-184 (1943)

    Supplement to the Mount Wilson catalogue and bibliography of stars of
    classes B and A whose spectra have bright hydrogen lines.
oTable 1: <Em* MWC NNN> (Nos 417-666)
   Ref:=1949ApJ...110..387M
     byMERRILL P.W.
, BURWELL C.G.
 Astrophys. J., 110, 387-419 (1949)

    Second supplement to the Mount Wilson catalogue and bibliography of
    stars of classes B and A whose spectra have bright hydrogen lines.
o(note to table 1: MWC 683 HD 236611, not 237011)
oTable 1: <Em* MWC NNNN> (Nos 667-1088)
 Originof the Acronym: A = Assigned by the author(s)