A barred spiral galaxy in the Local Group, made up of 200-400 billion stars, mostly red dwarfs. It can be seen as far north as Cassiopeia and as far south as the Southern Cross.
What is the Milky Way Galaxy?
100
Examples of Asterisms (patterns of easily recognized stars but not constellations)
What are the big dipper, the little dipper and the northern cross?
200
A nebula appears fuzzy.
How are you able to tell whether an object you are observing is a nebula or a star?
200
Five Stars in a W or M formation
What does Cassiopeia look like?
200
Found in the constellation Cygnus, it consists of a blackhole and a blue super-giant with an orbital rate of 5.6 days. X-rays are emitted in large amounts from a disk of gas that is going into the black hold. It is dubbed a microquasar.
What is Cygnus X-1?
200
(O, B, A, F, G, K, M) based on decreasing surface temperature.
What are the 7 spectral Classes?
300
Betelgeuse
What is a supergiant in Orion?
300
Castor and Pollux
What are the names of the two brightest stars in the constellation of Gemini?
300
Found in the constellation Cassiopeia, left over from a supernova detected in Nov. 1572 which remained highly visible for 2 years then faded. The supernova resulted from a white dwarf accumulating too much matter and exploding.
What is Tycho's SNR?
300
Super Massive Black Hole
What is at the center of our Universe?
400
The Hertzsprung-Russel Diagram
What diagram is used to classify stars using luminosity and temperature?
400
The Northern Cross is in this Constellation
What is Cygnus the Swan?
400
DSO found in the constellation Ophiuchus, one of the youngest supernova remnants in the galaxy
What is Kepler's SNR?
400
Also known as the morning star/evening star.
What is Venus?
500
Star in the Main Sequence of Stars
Where is the sun found on the HR diagram?
500
Constellation containing Altair
What is Aquila?
500
A planetary nebula, M57 Deep Sky Object in the constellation Vega.
What is the Ring Nebula?
500
M = m - 5log10 (r)/10
What is The Distance Modulus, the difference between the apparent magnitude m (ideally, corrected from the effects of interstellar absorption) and the absolute magnitude M of an astronomical object.