Question

1. use your count of this very small section to get an estimate for how many objects there are in the universe. first, since your image was broken into 12 smaller images, you will multiply your count by 12. fill in the boxes below with these numbers.

objects counted x 12 = objects in a single camera

1. there were three cameras that made up the hdf (ignoring the small planetary camera), so multiply that number by 3 to get an estimate for how many objects are in the entire hdf.

objects in a single camera x 3 = objects in hdf

1. to cover the entire sky, you would need 30 million (30,000,000) hdfs. multiply your hdf estimate by 30 million to estimate the total number of objects in the universe.

objects in hdf x 30,000,000 = objects in the universe

1. modern astronomers estimate there to be at least 2 trillion galaxies (each containing billions of stars) in the observable universe. compare your estimated number to the astronomers estimated number. use this to answer the questions on the next page.

Explanation:

Step1: Multiply count by 12

Let the number of objects counted be $n$. The number of objects in a single camera is $n\times12$.

Step2: Multiply single - camera count by 3

The number of objects in HDF is $(n\times12)\times3 = n\times36$.

Step3: Multiply HDF count by 30 million

The number of objects in the universe is $(n\times36)\times30000000=n\times1080000000$.

Since the value of $n$ (objects counted) is not given, the general formula for the number of objects in the universe based on the counting process is $1080000000n$.

Answer:

The number of objects in the universe is $1080000000n$, where $n$ is the number of objects counted in the small section.