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			IRR is the discount rate that produces a zero NPV for a project's cash flows. Management accounting-decision management: the internal rate of ... by Steven, Grahame / Financial Management (UK) IRR is a state agency with a current budget of $22 million, which focuses on rehabilitating the 13,000 square miles of land impacted by the mining industry. Mining nature's bounty: Minnesota transforms an abandoned iron field ... by Parks & Recreation The IRR is seen as an improvement over the OAR because, by virtue of the assumptions made about the income stream over time, individual components of the yield equation are allowed to vary. Evaluating future input assumption risk by Brown, Roger J. / Appraisal Journal			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 I 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			IRPRS IRPS IRPSE irPSTI 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 galaxy Irr I galaxy Irr II Irr II Irr II galaxy 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

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irregular galaxy (redirected from Irr I)

irregular galaxy
(redirected from Irr I)