A dark nebula in Orion shaped like the head of a horse, also known as Barnard 33. It is about 6′ long and projects into the bright nebula IC 434 south of the star Zeta Orionis, but is well seen only on long-exposure photographs.
http://www.eso.org/public/images/eso0202a/
- accommodation
- accommodation space
- accommodation zone
- accommodatory monetary policy
- accordant
- accordion fold
- account
- accounting
- accounting file
- accounting office software
- accounting period
- accounting profit
- account management
- account name
- account(s)
- accounts payable
- accounts receivable
- a.c.-coupled amplifier
- accreting margin
- accretion
- accretional heating
- accretionary basin
- accretionary lapilli
- accretionary levée
- accretionary prism