Questions tagged [transit]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
1 answer
29 views

Is the transit technique for exoplanet detections part of the "Wide-Field Precision Photometry Revolution"?

In a exoplanet focused lecture I was informed that the two main techniques for the detection of exoplanets were: radial velocity (VR) and transit. These were very briefly explained to us. When ...
user7077252's user avatar
1 vote
1 answer
49 views

Between Mercury and Venus, which planet produces a longer transit? Assuming both planets describe same path on the solar disk

Is it even possible to give a definite answer to this question? There are a lot of factors involved in this like Earth's position and motion relative to the planets and of course their own motion and ...
peakcipher's user avatar
0 votes
2 answers
225 views

In searching for an exoplanet by observing transitions, isn't it rather rare that an orbital plane would line up with Earth?

Given that we are at a random orientation to any remote star system, it seems to me that there is only a narrow angle at which transits of exoplanets can be observed. Imagine a large mathematical ...
Michael's user avatar
  • 972
1 vote
3 answers
2k views

How to calculate transit time for a specific section of an orbit?

I've searched high and low and I haven't been able to find a formula for this. I'm trying to calculate the time it will take to transit through a defined arc length of an elliptical orbit, whose ...
ddejohn's user avatar
  • 113
0 votes
1 answer
288 views

Can the Earth be seen to transit the sun from the outer planets?

Transit of Mercury as seen from Mars The Curiosity rover on the planet Mars observed the planet Mercury transiting the Sun, marking the first time a planetary transit has been observed from a ...
user avatar
2 votes
2 answers
570 views

Why does Venus transit so slowly?

I have calculated that because Venus is $d = 12,103.6~\mathrm{km}$ in diameter and moves at $v = 35.02~\mathrm{km}/\mathrm{s}$, it would take $$ t=\frac{d}{v} = \frac{12,103.6~\mathrm{km}}{35.02~\...
alvoutila's user avatar
  • 725
4 votes
2 answers
589 views

How could Horrocks have measured the AU?

I have always understood that the great historical significance of the transits of Venus, and the reason for the expeditions mounted to observe it, were that, by observing it simultaneously from two ...
orome's user avatar
  • 5,038
14 votes
2 answers
2k views

What percent of planets are in the position that they could be viewed edge-on from Earth? (and thus able to undergo transits)

Star number 12644769 from the Kepler Input Catalog was identified as an eclipsing binary with a 41-day period, from the detection of its mutual eclipses (9). Eclipses occur because the orbital ...
InquilineKea's user avatar
  • 3,662
4 votes
2 answers
50 views

Is it easier to learn more about the seasonal changes in an exoplanet's atmosphere when the exoplanet orbits a binary star system?

From a recent ScienceDaily article, we have this... Scientists detected the new planet in the Kepler-16 system, a pair of orbiting stars that eclipse each other from our vantage point on Earth. When ...
InquilineKea's user avatar
  • 3,662
4 votes
6 answers
209 views

What possible science could we do during the 2012 Venus transit? [closed]

I had previously asked about how useful everyday solar physics data is to other astronomers ... But about a year from now, we will have another Venus transit, where Venus will pass between the sun and ...
Joe's user avatar
  • 1,668