Corso di
ASTRONOMIA DI
BASE - 2012
I S I S T E M I P L A N E TA R I
Skylive – Telescopi Remoti
Esercitazione alla serata numero 11 del Corso di
Astronomia di Base – “Il Sistema Solare”
CORSO DI ASTRONOMIA DI BASE
Esercitazione alla undicesima serata del corso di astronomia di base 2012 di Skylive-123 Stella
LINK UTILI PRIMA DELL’ESERCITAZIONE
Il materiale relativo alla serata, e necessario alle esercitazioni, può essere visionato ai link presenti
sulla pagina ufficiale del corso:
http://www.skylive.it/EventoSerale_Dettagli.aspx?Id=103
IL SISTEMA SOLARE
15/11/2012
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CORSO DI ASTRONOMIA DI BASE
ESERCITAZIONI
1. Indicare quali fattori influiscono sulla presenza di atmosfera di un pianeta.
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IL SISTEMA SOLARE
15/11/2012
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CORSO DI ASTRONOMIA DI BASE
2. Una stella di tipo G2V di sequenza principale. Descrivere le caratteristiche del Sole in
base a questi dati.
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IL SISTEMA SOLARE
15/11/2012
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CORSO DI ASTRONOMIA DI BASE
3. Inclinazioni degli assi nel Sistema Solare. Spiegare il caso di Venere e le motivazioni
della sua rotazione retrograda.
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IL SISTEMA SOLARE
15/11/2012
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CORSO DI ASTRONOMIA DI BASE
4. Eventuali possibili cause per la presenza di asteroidi tra Marte e Giove: indicare
brevemente i possibili processi di formazione.
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IL SISTEMA SOLARE
15/11/2012
5
CORSO DI ASTRONOMIA DI BASE
5. Spiegare la Legge di Titius-Bode
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IL SISTEMA SOLARE
15/11/2012
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CORSO DI ASTRONOMIA DI BASE
6. Indicare le motivazioni che hanno indotto a declassare Plutone a pianeta nano
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IL SISTEMA SOLARE
15/11/2012
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CORSO DI ASTRONOMIA DI BASE
7. Nube di Oort e Fascia di Edgeworth-Kuiper: indicare le differenze
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IL SISTEMA SOLARE
15/11/2012
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CORSO DI ASTRONOMIA DI BASE
8. Spiegare brevemente da dove può provenire l’acqua terrestre e indicare su quali altri
corpi del sistema solare è stata trovata.
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IL SISTEMA SOLARE
15/11/2012
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CORSO DI ASTRONOMIA DI BASE
9. Indicare le fonti di instabilità nel Sistema Solare con riferimento particolare ai rischi
per la Terra.
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IL SISTEMA SOLARE
15/11/2012
10
CORSO DI ASTRONOMIA DI BASE
10. Spiegare brevemente la composizione interna del Sole.
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IL SISTEMA SOLARE
15/11/2012
11
CORSO DI ASTRONOMIA DI BASE
QUESTIONARIO BREVE
1. Mettere in ordine crescente di grandezza i seguenti pianeti: Marte, Mercurio, Giove,
Saturno
Giove, Saturno, Marte, Mercurio
Giove, Saturno, Marte, Mercurio
Mercurio, Marte, Saturno, Giove
2. Il pianeta meno denso del Sistema Solare è:
Giove
Saturno
Urano
3. Il pianeta Cerere fu scoperto grazie a:
Ricerca di un pianeta a 2,4 UA dal Sole circa
Interazione gravitazionale con Marte
Interazione gravitazionale con Giove
4. Anelli planetari sono presenti intorno a:
Quattro pianeti del Sistema Solare
Giove, Saturno e Urano
Giove, Saturno e Nettuno
5. Le lacune di Kirkwood sono:
Zone di particolare densità nella Fascia degli Asteroidi
Zone di particolare densità nella Nube di Oort
Zone che risentono della sincronia indotta dalla rotazione di Giove.
6. Il pianeta con l’atmosfera meno densa nel Sistema Solare è:
Marte
Mercurio
Urano
7. Le comete di lungo periodo derivano da:
Fascia di Edgeworth-Kuiper
Fascia principale degli asteroidi
Nube di Oort
8. La scala Torino mette in relazione:
Orbita degli asteroidi con orbita terrestre al fine di predire eventuali impatti
Orbita degli asteroidi vicini con rischio di impatto
Rischio di impatto e energia cinetica eventualmente liberata dallo stesso
9. I PHA sono caratterizzati da particolari condizioni di:
Perigeo e magnitudine
Perigeo e velocità
Perigeo e inclinazione orbitale
IL SISTEMA SOLARE
15/11/2012
12
CORSO DI ASTRONOMIA DI BASE
10. L’atmosfera terrestre è trasparente a:
Raggi gamma
Raggi Infrarossi lontani
Spettro visibile
IL SISTEMA SOLARE
15/11/2012
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