18-25
How to weigh a galaxy
(55 votes)

Tags
- Classification: Omloppsbana, Stjärna, Galax, Kosmologi, Mörk materia, Rotationskurva, Mörk materia
- Age Range: 15-18, 18-25
- Aggregation Level: Learning activity
- Difficulty: Difficult
- Educational Asset Type: Exercise
- Format: image/fits
- Interactivity Level: High
- Interactivity Type: Active
- Language: en
- Learning Time: 2 didactic hours
- Metadata Language: en
- Purpose: Discipline
- Size: Up to 250KB
- Structure: Atomic
- Technical Name: any
- Type: Browser
Παρατήρηση με βαρυτικούς μικροφακούς
(60 votes)

Tags
- Classification: Astrometri, Kosmisk strålning, Gravitationslins, Einsteinring, Mikrolinseffekt, Ljuskurva, Kvasar
- Age Range: 25+, 15-18, 18-25
- Aggregation Level: Learning activity
- Difficulty: Medium
- Educational Asset Type: Exercise
- Format: application/pdf
- Interactivity Level: High
- Interactivity Type: Active
- Language: el
- Learning Time: 2 didactic hours
- Metadata Language: en
- Purpose: Discipline
- Size: From 250KB to 500KB
- Structure: Atomic
- Technical Name: any
- Type: Browser
Πως υπολογίζουμε τη μάζα ενός γαλαξία
(54 votes)

Tags
- Classification: Galax, Astrometri, Mörk energi, Mörk materia, Spiralgalax, Rödförskjutning, Mörk materia
- Age Range: 25+, 15-18, 18-25
- Aggregation Level: Learning activity
- Difficulty: Medium
- Educational Asset Type: Exercise
- Format: application/pdf
- Interactivity Level: High
- Interactivity Type: Active
- Language: el
- Learning Time: 2 didactic hours
- Metadata Language: en
- Purpose: Discipline
- Size: From 250KB to 500KB
- Structure: Atomic
- Technical Name: any
- Type: Browser
Un trou noir au centre de notre Galaxie
(57 votes)

Tags
- Classification: Omloppsbana, Solsystemet - övrigt, Galax, Kosmologi, Vintergatan
- Age Range: 12-15, 15-18, 18-25
- Aggregation Level: Learning activity
- Difficulty: Medium
- Educational Asset Type: Exercise
- Format: application/pdf
- Interactivity Level: High
- Interactivity Type: Active
- Language: fr
- Learning Time: 2 didactic hours
- Purpose: Discipline
- Size: Up to 250KB
- Structure: Atomic
- Technical Name: any
- Type: Browser
Εξερευνώντας τα ανοιχτά σμήνη
(59 votes)

Tags
- Classification: Stjärna, Astrometri, Öppen hop, Stjärnformation
- Age Range: 25+, 15-18, 18-25
- Aggregation Level: Learning activity
- Difficulty: Medium
- Educational Asset Type: Exercise
- Format: application/pdf
- Interactivity Level: High
- Interactivity Type: Active
- Language: el
- Learning Time: 2 didactic hours
- Metadata Language: en
- Purpose: Discipline
- Size: Up to 250KB
- Structure: Atomic
- Technical Name: any
- Type: Browser
Θέτοντας σημεία αναφοράς όταν τα πάντα κινούνται - αστρικά ρεύματα
(56 votes)

Tags
- Classification: Universum - generellt, Astrometri
- Age Range: 25+, 15-18, 18-25
- Aggregation Level: Learning activity
- Difficulty: Medium
- Educational Asset Type: Exercise
- Format: application/pdf
- Interactivity Level: High
- Interactivity Type: Active
- Language: el
- Learning Time: 2 didactic hours
- Metadata Language: en
- Purpose: Discipline
- Size: Up to 250KB
- Structure: Atomic
- Technical Name: any
- Type: Browser
Systèmes binaires Be Xray
(59 votes)

Tags
- Classification: Stjärna, Kosmologi, Kuiperbältet, Ljuskurva, Dubbelstjärna, Variabel stjärna
- Age Range: 12-15, 15-18, 18-25
- Aggregation Level: Learning activity
- Difficulty: Medium
- Educational Asset Type: Exercise
- Format: text/plain
- Interactivity Level: High
- Interactivity Type: Active
- Language: fr
- Learning Time: 2 didactic hours
- Purpose: Discipline
- Size: Up to 250KB
- Structure: Atomic
- Technical Name: any
- Type: Browser
Définir un système de référence
(51 votes)

Tags
- Classification: Omloppsbana, Solsystemet, Sol, Kometer och meteorer, Astrometri, Koordinater, Kuiperbältet, Vintergatan, Variabel stjärna
- Age Range: 12-15, 15-18, 18-25
- Aggregation Level: Learning activity
- Difficulty: Medium
- Educational Asset Type: Exercise
- Format: application/pdf
- Interactivity Level: High
- Interactivity Type: Active
- Language: fr
- Learning Time: 2 didactic hours
- Purpose: Discipline
- Size: Up to 250KB
- Structure: Atomic
- Technical Name: any
- Type: Browser
Lentille gravitationnelle
(52 votes)

Tags
- Classification: Stjärna, Galax, Kosmologi, Gravitationslins, Einsteinring, Kvasar, Relativitetsteorin
- Age Range: 12-15, 15-18, 18-25
- Aggregation Level: Learning activity
- Difficulty: Medium
- Educational Asset Type: Exercise
- Format: application/java-applet
- Interactivity Level: High
- Interactivity Type: Active
- Language: fr
- Learning Time: 2 didactic hours
- Purpose: Discipline
- Size: Up to 250KB
- Structure: Atomic
- Technical Name: any
- Type: Browser
Etude d'amas ouvert
(54 votes)

Tags
- Classification: Galax, Kosmologi, Halo, Oregelbunden galax, Klotformad hop, HertzsprungRussell diagram, Huvudserie, Vintergatan, Stjärnformation
- Age Range: 12-15, 15-18, 18-25
- Aggregation Level: Learning activity
- Difficulty: Medium
- Educational Asset Type: Exercise
- Format: application/pdf
- Interactivity Level: High
- Interactivity Type: Active
- Language: fr
- Learning Time: 2 didactic hours
- Purpose: Discipline
- Size: Up to 250KB
- Structure: Atomic
- Technical Name: any
- Type: Browser