6. View & read about the Orion Nebula. What 2 gases make up most of this cloud where new stars are formed?
*
1 point
Hydrogen and Iron
Hydrogen and Carbon Dioxide
Hydrogen and Helium
Helium and Lithium
all the answer1 All of the above
2 Mass
3 Nebula ==> Protostar ==> Main Sequence Star ==> Red Giant ==> Planetary Nebula ==>White Dwarf
4 Supernova
5 Red Supergiant
6 Hydrogen and Helium
7 Protostar; baby
8 Main Sequence; 5 billion years
9 Silicon (Si)
10 Supernova; Magnesium
11 Temperature
12 Blue; Left
13 Top right
14 Hotter
15 18 years
16 It is the brightest star in the night sky.
17 Strong hydrogen, some ionized metals
18 13 light years
19 Strong titanium oxide and some calcium
20 red dwarf
21 M
22 True
23 4
24They are a red color.
Hydrogen and Helium.
7. What type of star is HOPS-68? And what human phase of life could we consider this star to be in?
*
1 point
Protostar; baby
Protostar; elderly
Main Sequence; adult life
Neutron Star; death
Protostar; baby.
8. Our sun is in which phase of its life? Nuclear fusion will burn all of the hydrogen in its core and then it will begin its next phase of life. Astronomers estimate this will be when?
*
1 point
Main Sequence; 5 billion years
Protostar; 5 billion years
Main Sequence; 2 billion years
Red Giant; 5 billion years
Our sun is currently in the main sequence phase of its life. Astronomers estimate that it will start its next phase, which is becoming a red giant, in approximately 5 billion years.
Main Sequence; 5 billion years
Protostar; 5 billion years
Main Sequence; 2 billion years
Red Giant; 5 billion years
Main Sequence; 5 billion years
9. The red supergiant, Betelgeuse (yes…pronounced “Beetle Juice”) is the 2nd brightest star in the constellation Orion. Due to its size and gravity, it is responsible for creating some of the heavier metals in the universe. What is a heavier element likely created by Betelgeuse?
*
1 point
Hydrogen (H)
Silicon (Si)
Helium (He)
Lithium (Li)