In dictionaries:
barred spiral galaxy
Galaxy with spiraling, barred structure.
flocculent spiral galaxy
(astronomy) a spiral galaxy with discontinuous spiral arms
Grand design spiral galaxy
A grand design spiral galaxy is a type of spiral galaxy with prominent and well-defined spiral arms, as opposed to multi-arm and flocculent spirals which have subtler structural features.
Unbarred spiral galaxy
An unbarred spiral galaxyAstronomical Journal, "Near-infrared surface photometry and morphology in virgo cluster spiral galaxy nuclear regions", Bernard J. Rauscher, April 1995, , Astronomy Pictures, "M99" (accessed 18 April 2010) is a type of spiral galaxy without a central bar, or one that is not a barred spiral galaxy.
Intermediate spiral galaxy
An intermediate spiral galaxy is a galaxy that is in between the classifications of a barred spiral galaxy and an unbarred spiral galaxy.
more...