These seasons are based on the changing position of Earth in relation to the Sun.
What are Astronomical Seasons?
These elements are what nebulae are mostly composed of.
What is Hydrogen and Helium Gas, Plasma, and Dust?
Slide 1
What is the Lagoon Nebula?
This angular unit is often used when measuring objects in the sky.
What is an Arcminute?
This emission nebula shares its name with a lunar phase, yet its appearance looks more similar to a brain.
What is the Crescent Nebula?
This event takes place between June 20 and June 22 in the Northern Hemisphere, marking the beginning of a new astronomical season.
What is the Summer Solstice?
This nebula gets its blue color from the light it reflects.
What is a Reflection Nebula?
Slide 2
What is the Double Star Albireo?
This is what you want when taking pictures through a telescope.
What is a Well Framed Image?
This planetary nebula looks similar to an apple core, or a piece of workout equipment that it was named after.
What is the Dumbbell Nebula?
This event takes place between June 20 and June 22 in the Southern Hemisphere, marking the beginning of a new astronomical season.
What is the Winter Solstice?
This type of nebula is a cloud of hydrogen gas that is excited, or ionized.
What is an Emission Nebula?
Slide 3
What is the Trifid Nebula?
This is one of the greatest factors that affects quality when taking an image on a clear, moonless night.
What is Altitude?
This emission nebula was named after a bird commonly associated with freedom and democracy.
What is the Eagle Nebula?
These seasons are based on the annual temperature cycle and linked to the start and end of calendar months.
What are Meteorological Seasons?
This type of stellar remnant is created when a low mass star (less than 8 times the mass of our Sun) dies.
What is a Planetary Nebula?
Slide 4
What is the Sagittarius Globular Cluster?
What is Between a Third and a Half?
This planetary nebula is named after its similar appearance to an item one might propose with.
What is the Ring Nebula?
This date range marks the end of the Northern Hemisphere Summer and the Southern Hemisphere Winter.
What happens between September 21 and September 24?
This cloud of gas and dust has such a high density that it effectively scatters and absorbs all light that attempts to penetrate it.
What is a Dark Nebula?
Slide 5
What is the Swan Nebula?
These are all things that can affect an image's quality.
What is Moonlight, Seeing Conditions, Sky Transparency, Wind, and Altitude?
This planetary nebula's name is similar to the structure of DNA, minus the "double."
What is the Helix Nebula?