Place the following images in a sequence to represent the life cycle of a mid-sized star:

5, 7, 10, 11, 13, 20, 23

5 10 7 23 11 13 20

5 – CFHT Optical Image of M47 – The Orion Nebula10 – William Hartmann Illustration of Proto-Planetary System7 – SOHO (Extreme UV) Image of the Sun23 – Jeff Bryant Artist Illustration of a Red Giant11 – Hubble Image of NGC 244013 – Hubble Image of NGC 3132 - the Eight Burst Nebula 20 – U Leicester UK Artist Illustration of a White Dwarf

Place the following images in a sequence to represent the life cycle of a massive star:

4, 5, 9, 10, 12, 15, 16, 24

5 10 15 4 9 12 16

5 – CFHT Optical Image of M42 – The Orion Nebula10 – Wm Hartmann Illustration of Proto-Planetary System15 – David Malin (AAO) Image of Pleiades Open Cluster4 – Hubble Image of Red Supergiant Betelgeuse 9 – Hubble Optical Image of Eta Carina12 – Chandra X-ray Image of Cas A Supernova Remnant16 – CXC Artist M. Weiss Illustration of a Black Hole24 – Chandra X-Ray Image of the Crab Pulsar

24

or

Place the following images in a sequence thatresults in a Type Ia supernova object:

3, 5, 7, 10, 11, 13, 18, 20, 22, 23

5 10 7 23 11 13 20

18 223