- #1

vicvalis

- 6

- 3

- TL;DR Summary
- Doing some very ball-park amateur calculations, am i even doing it right?

First, i think this is the correct place to ask this question.

So the story is that I'm working on a piece of fiction that I want to be as accurate as possible. One part of it involves an object that travels from Mars to earth. This would have been between February 22, 1901 (beginning of opposition that year, I think) and June 7 of 1901, 104 days if i counted right. So the object leaves Mars and has to race to catch up to earth, because Earth is already moving further away. I've come up with a collection of figures, and made come calculations that I'm trying to keep as estimates... they don't need to be exact to the nth decimal point. But as i don't have the slightest grasp of celestial mechanics, I'm sure I've gotten plenty of stuff wrong.

What I'm hoping to end up with is the total distance the object would have had to travel, and how fast, to make the trip in 104 days. so here's my collection of figures (and they may be wrong, PLEASE feel free to correct me if they are!):

Mars distance from Earth 23:59:59, Feb 22, 1901 0.6774849 AU 62976155.79478 (62,976,156) miles.

Mars distance from Earth 23:59:59, Jun 07, 1901 1.3464453 AU 125159909.81 (125,159,910) miles.

Earth travels about 1.6 million miles per Earth day (1,600,000); in one hundred and four days the Earth traveled one hundred sixty-six million four hundred thousand miles. (166,400,000).

Mars travels about 1.3 million miles per Earth day (1,300,000); in one hundred four days Mars traveled one hundred and thirty-five million two hundred thousand miles (135,200,000).

Distance between Earth and Mars after 104 day is thirty-one million two hundred thousand miles (31,200,000).

Speed traveled is 12500 miles per hour.

I KNOW I have something wrong. I'm pretty sure about the Mars distances during the dates at top... I got them off the internet, so they HAVE to be true, right? After that, the rest are averages or estimates... hopefully in the ballpark. Even so, the rest I have no confidence in. I truly suck at math, took me eight years to get through bonehead algebra in college, I'm THAT bad. So correct me! If you can look up more accurate speeds, I'd appreciate them and a citation. If nothing else, I'd like to be able to say the object left Mars on February 22nd 1901, and traveled approximately "x" miles at "x" mph, arriving at Earth 104 days later.

I hope this exercise is not an annoyance. Thanks in advance.

So the story is that I'm working on a piece of fiction that I want to be as accurate as possible. One part of it involves an object that travels from Mars to earth. This would have been between February 22, 1901 (beginning of opposition that year, I think) and June 7 of 1901, 104 days if i counted right. So the object leaves Mars and has to race to catch up to earth, because Earth is already moving further away. I've come up with a collection of figures, and made come calculations that I'm trying to keep as estimates... they don't need to be exact to the nth decimal point. But as i don't have the slightest grasp of celestial mechanics, I'm sure I've gotten plenty of stuff wrong.

What I'm hoping to end up with is the total distance the object would have had to travel, and how fast, to make the trip in 104 days. so here's my collection of figures (and they may be wrong, PLEASE feel free to correct me if they are!):

Mars distance from Earth 23:59:59, Feb 22, 1901 0.6774849 AU 62976155.79478 (62,976,156) miles.

Mars distance from Earth 23:59:59, Jun 07, 1901 1.3464453 AU 125159909.81 (125,159,910) miles.

Earth travels about 1.6 million miles per Earth day (1,600,000); in one hundred and four days the Earth traveled one hundred sixty-six million four hundred thousand miles. (166,400,000).

Mars travels about 1.3 million miles per Earth day (1,300,000); in one hundred four days Mars traveled one hundred and thirty-five million two hundred thousand miles (135,200,000).

Distance between Earth and Mars after 104 day is thirty-one million two hundred thousand miles (31,200,000).

Speed traveled is 12500 miles per hour.

I KNOW I have something wrong. I'm pretty sure about the Mars distances during the dates at top... I got them off the internet, so they HAVE to be true, right? After that, the rest are averages or estimates... hopefully in the ballpark. Even so, the rest I have no confidence in. I truly suck at math, took me eight years to get through bonehead algebra in college, I'm THAT bad. So correct me! If you can look up more accurate speeds, I'd appreciate them and a citation. If nothing else, I'd like to be able to say the object left Mars on February 22nd 1901, and traveled approximately "x" miles at "x" mph, arriving at Earth 104 days later.

I hope this exercise is not an annoyance. Thanks in advance.