Please answer the following  A) Suppose an object takes 1000 years to orbit the Sun. How many times farther from the Sun is it, when compared with Earth?  B)  Communications with the spacecraft Alpha using radio waves require 2000 years for the round trip (there and back). This

Using a 8-m reflector telescope on Mars, what is the maximum distance we could measure using stellar parallax?

In Table 2, there is a list of 15 planets, some of which are real objects discovered by the Kepler space telescope, and some are hypothetical planets. For each one, you are provided the temperature of the star that each planet orbits in degrees Kelvin (K), the distance that each planet orbits from their star in astronomical units (AUs) and the size or radius of each planet in Earth radii (RE). Since we are concerned with finding Earth-like planets, we will assume that the composition of these planets are similar to Earth's, so we will not directly look at their masses, rather their sizes (radii) along with the other characteristics. Determine which of these 15 planets meets our criteria of a planet that could possibly support Earth-like life. Use the Habitable Planet Classification Flow Chart (below) to complete Table 2. Whenever the individual value you are looking at falls within the range of values specified on the flow chart, mark the cell to the right of the value with a Y for…

What is the wavelength of maximum intensity (in nm) and the total energy emitted (in J/s/m2) by a celestial object at 6 K above absolute zero?

(a) The distance to a star is approximately 7.80 1018 m. If this star were to burn out today, in how many years would we see it disappear? years (b) How long does it take for sunlight to reach Saturn?

I attempted to answer this question and I'm not sure what I am doing wrong. My formula says A.S. = 206265 (separation/distance from observer) I know to convert to the same units, so I ended up with 80 Million Km being 8 x 10 ^ -6 LY Could you please explain each step especially for the part that I got wrong for both A and B?

At its closest approach to Earth, Mars is 57.50 million kilometers away. How long (in minutes) would a radio signal sent from a future manned mission to Mars take to travel to Earth? (distance = speed x time) [55]

Brayden knows the distance from Earth to Pluto is 5.9×1095.9×109 kilometers.  He has learned that there is a new space shuttle under development that can travel at a speed of 28,000 kilometers per hour.  Brayden is trying to determine how long in days it would take a space crew on this new shuttle to reach Pluto.  His work is below.

F  =  9/5 C  + 32 ;          C  =  5/9  (F - 32);         K  =  273  +  C;      Lambda   =    2900/T;       T^4   =  I (128)(10^8);       I1/I2    = ( D2 / D1 )2 Show All Calculations What is the intensity of sunlight on planet XZEON if: The intensity of direct sunlight on earth is Ie = 2.0 calories per square centimeter per minute and Planet XZEON is 7.7 times farther from the sun than the earth is.

What is the wavelength of maximum intensity (in nm) and the total energy emitted (in J/s/m2) by a celestial object at 6 K above absolute zero?