planets
stars
black holes
unique space objects
misc.
100

how many planets are there in our solar system(excluding dwarf planets)?

8

100

what is the name of our star

sun, helios, solar, sol, etc.

100

what is a black hole?

a object that has a extreme mass and can absorb matter into a singularity at its center.

100

what is a neutron star

a ultra dense star that formed after a supernova

100

what is a light year

how far light travels in a year

200

how many planets are there in our solar system(including dwarf plants)? and could you name all of them 

13 (mercury, venus, earth, mars, jupiter, saturn, uranus, neptune, pluto, eris, ceres, makemake, and haumea).

200

how many stars are in the milky way?

100 billion stars 

200

what would happen if a black holes the mass of the sun replaced the sun?

nothing would happen except the slow freezing of earth due to no sunlight.

200

what is a pular

a neutron star that spins 716 times per second.

200

what is a event horizon 

the point of no return in a black hole

300

what is a hycean planet?

a plant covered in a deep ocean about 1000km
300

what type of star is the sun?

a G-type main sequence.

300

what is the largest black hole?

TON 618 with a mass of 66 billion solar masses (66 billion times the mass of our sun).
300

what is a magnetar

a neutron star with a really strong magnetic field.

300

how far is the speed of light

9.5 billion km

400

what is a hot jupiter?

a gas giant to close to its host star making it have extreme temperatures.

400

what will our sun turn into in 4.5-5 billion years

a white dwarf star

400

what is the closest black hole to earth

Gaia BH1, 1500 light years away.

400

what is the black hole at the center of the universe?

Sagatarius A*

400

what is a iron planet

a planet entirely made of iron

500

what is a super puff

a jupiter size gas giant with a really low density.

500

what is a black dwarf star

a star that has puffed off its outer layers and cooled after a very long time (after quadrillions of years)

500

what are the different types of black holes?

supermassive, stellar, and intermidiate.

500

what is a kugelblitz

a focus of heat, radiation or light so dense that it forms a event horizon

500
what is the heat death

the eventual end of the universe in a incomprehensible amount of time.