irregular galaxy
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irregular galaxy

A galaxy that does not have the clearly defined shape and structure of typical elliptical, lenticular, or spiral galaxies. Irregular galaxies typically contain large amounts of gas and dust, and their stars are often young. They account for only a small percentage of known galaxies. Some irregular galaxies are the result of gravitational interactions or collisions between formerly regular galaxies. Many irregular galaxies orbit larger regular ones; the Magellanic Cloud galaxies orbiting the Milky Way are examples. Compare elliptical galaxy lenticular galaxy spiral galaxy See more at Hubble classification system.

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elliptical galaxy galaxy lenticular galaxy Magellanic Cloud Magellanic Clouds spiral galaxy			ironmongery irons ironshod ironside ironsides ironsmith ironstone Ironstone china ironware ironweed ironwoman ironwood ironwood tree ironwork ironworker ironworks Ironwort irony Iroquoian Iroquoian language Iroquois Iroquois League Irous Irp IRQ Irr II galaxy irradiance irradiant irradiate irradiation irradicable irradicate irrational irrational hostility irrational impulse irrational motive irrational number irrationalism irrationality irrationally irrationalness Irrawaddy Irrawaddy River irreal irreality irrebuttable irreceptive irreclaimable Irrecognition Irrecognizable Irreconcilability			IRPT IRPTA IRPTC IRPTI IRPUS IRPV IRPW IRPWA IRPWP IRQ IRQ IRQ IRQ steering IRQAS IRQC IRQL IRQP IRQPC IRQR IRQS IRQUE IRR IRR IRR Irr I Irr I Irr I galaxy Irr I galaxy Irr II Irr II Irr II galaxy IRR-APST Irr-I galaxy Irr-I galaxy Irr-II galaxy Irr-II galaxy IRR1 IRRA IRRAD irradiance irradiance Irradiance Average irradiancy irradiant irradiant irradiate irradiate irradiate irradiated irradiated irradiated Irradiated food Irradiated food Irradiated Fuel Dismantling Irradiated Fuel Storage Facility Irradiated Nuclear Fuel Irradiated Peripheral Blood Mononuclear Cells irradiated yeast irradiates irradiates irradiating

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irregular galaxy (redirected from Irr II galaxy)

irregular galaxy
(redirected from Irr II galaxy)