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

Result of query: info cati 2MUCD$

Details on Acronym:   2MUCD
  
2MUCD  (UltraCool Dwarfs from the 2MASS Catalog)= (UCD) 
 Write:<<2MUCD  NNNNN>>
 N:  about 1000
Object:*  (SIMBAD class: Star)
  Note:In preparation.
    Identification of many late-M and L dwarfs through spectroscopic    follow-up of photometrically selected objects from the 2MASS 2nd    Release (2MUCD 1NNNN) and the All-sky release (2MUCD 2NNNN).    This catalog would include all M7-L8/9 objects uncovered as part of    this work.
   Ref:=2007AJ....133..439C
     byCRUZ K.L.
, REID I.N., KIRKPATRICK J.D., BURGASSER A.J., LIEBERT J., SOLOMON A.R., SCHMIDT S.J., ALLEN P.R., HAWLEY S.L., COVEY K.R.
 Astron. J., 133, 439-467 (2007)

    Meeting the cool neighbors. IX. The luminosity function of M7-L8
    ultracool dwarfs in the field.
oTables 2,3,7,8,9: <2MUCD 1NNNN> N=209.
   Ref:=2007AJ....133.2258S
     bySCHMIDT S.J.
, CRUZ K.L., BONGIORNO B.J., LIEBERT J., REID I.N.
 Astron. J., 133, 2258-2273 (2007)

    Activity and kinematics of ultracool dwarfs, including an amazing
    flare observation.
oTable 1: <2MUCD 2NNNN> N=66 are new.
 Originof the Acronym: p = Pre-registered to IAU Comm.5

Details on Acronym:   UCD
  
UCD    (UltraCool Dwarfs)
  ***** Avoid the usage of UCD,  prefer 2MUCD
 Originof the Acronym: L (2007AJ....133.2258S)