Do you have adblock enabled?

If you can read this, either the style sheet didn't load or you have an older browser that doesn't support style sheets. Try clearing your browser cache and refreshing the page.

•       •       •

844 clicks; posted to Geek » on 27 Jun 2012 at 5:38 PM (5 years ago)   |   Favorite    |   share:    more»

19 Comments     (+0 »)
 Paginated (50/page) Single page, reversed Normal view Change images to links Show raw HTML
View Voting Results: Smartest and Funniest

by studying the planet's orbital motion through the displacement of spectral lines of carbon monoxide, the team was able to calculate its exact mass

Alien math now?

Time for me to bust out an old joke from a headline I submitted years ago that never got approved:

Planet claims weight inaccurate because it had its shoes on.

The Earf is just retainig water, Amirite?

Submitter, your mother is so fat she was weighed using the carbon dioxide atmosphere that follows her

your mom is so fat she was added to the count of exo planets

MNPWTIU

loonatic112358: Submitter, your mother is so fat she was weighed using the carbon dioxide atmosphere that follows her

your mom is so fat she was added to the count of exo planets

Yo mama so fat she has smaller fat mamas floating around her in ellipses

Sgygus: by studying the planet's orbital motion through the displacement of spectral lines of carbon monoxide, the team was able to calculate its exact mass

Alien math now?

All maths are alien to me.

The planet is called Tau Boo b, located in the constellation of Bootes, and it orbits a star about 50 light years from Earth that's bright enough to be visible to the naked eye.

I am in third grade because all I read there was Boob, Booties, and naked.

The planet is called Tau Boo b, located in the constellation of Bootes, and it orbits a star about 50 light years from Earth that's bright enough to be visible to the naked eye.

Fano: loonatic112358: Submitter, your mother is so fat she was weighed using the carbon dioxide atmosphere that follows her

your mom is so fat she was added to the count of exo planets

Yo mama so fat she has smaller fat mamas floating around her in ellipses

...mama... MAMA ...mama...

/amidoinitrite

Anybody cares to explain the method?

I tried Google but didn't find anything.

traylor: Anybody cares to explain the method?

I tried Google but didn't find anything.

First you get a reaaaallly big scale, then some gravity...

traylor: Anybody cares to explain the method?

I tried Google but didn't find anything.

They found the planet's orbit by watching where the CO went. Once you have the orbital period, finding the mass is pretty trivial (assuming you know the star's mass).

Fano: loonatic112358: Submitter, your mother is so fat she was weighed using the carbon dioxide atmosphere that follows her

your mom is so fat she was added to the count of exo planets

Yo mama so fat she has smaller fat mamas floating around her in ellipses

Yo mama is so fat she has a Lagrange point between her and the earth.

hawcian: traylor: Anybody cares to explain the method?

I tried Google but didn't find anything.

They found the planet's orbit by watching where the CO went. Once you have the orbital period, finding the mass is pretty trivial (assuming you know the star's mass).

My impression was that they already knew the orbital period based on the star's wobbling. And I may be wrong, but I think that you can calculate the planet's mass only if you know the orbit time, the orbit radius, and the mass of the star.

Knowing a body's mass is essential...to determine whether it is rocky and possibly habitable or large and gassy.

This technique was first created for use on dating sites and only later adapted for hunting exoplanets.

All planets weigh the same. Nothing. They're in free fall. Mass, on the other hand...

Tommy Moo: I am in third grade because all I read there was Boob, Booties, and naked.

I don't understand how this got posted to Fark without a Boo-b headline.

hawcian: They found the planet's orbit by watching where the CO went. Once you have the orbital period, finding the mass is pretty trivial (assuming you know the star's mass).

Not quite. They got the orbital radial velocity off of the CO doppler shift. Orbital period alone isn't sufficient to determine the mass of a planet with an arbitrary inclination and eccentricity. In fact, even with both period and velocity, you still need to know inclination to determine the mass, which is why astronomers often report the product of mass and sine(inclination) instead of mass alone. (Stellar "wobbling" from a sufficiently massive/close planet can help to pin down the inclination, if available.)

Displayed 19 of 19 comments

View Voting Results: Smartest and Funniest

This thread is archived, and closed to new comments.

Submit a Link »
On Twitter

Top Commented
Javascript is required to view headlines in widget.

In Other Media
1. Links are submitted by members of the Fark community.

2. When community members submit a link, they also write a custom headline for the story.

3. Other Farkers comment on the links. This is the number of comments. Click here to read them.

4. Click here to submit a link.

Report