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Lynds Catalog of Dark Nebulae

(LDN, L, Catalog of Dark Nebulae)
(1950s/1960s list of dark nebulae found on Palomar plates)

Lynds Catalog of Dark Nebulae (or Catalog of Dark Nebulae, abbreviated LDN or sometimes L) is a list assembled by Beverly Lynds in the 1950s-1960s of dark nebulae found on plates of the Palomar Observatory Sky Survey. Among them are clouds currently under study regarding star formation, such as LDN 1689.


(catalog,nebulae)
http://adsabs.harvard.edu/full/1962ApJS....7....1L
https://heasarc.gsfc.nasa.gov/W3Browse/nebula-catalog/ldn.html
PrefixExampleSurvey/Catalog  
LDNLDN 1689Lynds Catalog of Dark Nebulae 

Referenced by:
LDN 1689
Taurus Molecular Cloud 1 (TMC-1)

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