Explanation: Two hundred and twenty light years from Earth, planets are forming. Recent observations of the binary star system HR 4796 have shown that one of the stars is surrounded by a dusty gaseous disk. This disk is of the right size, age, and density for dust pellets to accrete surrounding matter. A hole in the disk's center indicates that increasingly larger condensates are colliding and sticking together, coalescing into moons and planets. Pictured above is a false-color image of the system, with the bright star HR 4796A indicated by a cross. The disk measures about five times the size of our Solar System, and is seen nearly edge-on. HR 4796 is in the southern constellation Centaurus.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: dust disk - planet formation - Protoplanetnye diski - Planety u drugih zvezd - dvoinye zvezdy Publikacii so slovami: dust disk - planet formation - Protoplanetnye diski - Planety u drugih zvezd - dvoinye zvezdy
Sm. takzhe: Pylevoi disk vokrug Fomal'gauta Igra: krushenie superplanet BHB2007: formirovanie dvoinoi zvezdy Sem' mirov TRAPPIST 1 55 Raka-e: klimat v mire iz lavy Planetarii ot Keplera, izdanie IV Protoplanetnyi disk zvezdy HL Tel'ca ot ALMA Vse publikacii na tu zhe temu >>