Timeline for What is the distance from Alpha Centauri to Barnard's Star?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 28, 2021 at 19:34 | answer | added | d_e | timeline score: 5 | |
| Dec 23, 2020 at 18:00 | history | tweeted | twitter.com/StackAstronomy/status/1341805791343468550 | ||
| Oct 30, 2020 at 13:08 | vote | accept | WarpPrime | ||
| Oct 30, 2020 at 6:00 | comment | added | PM 2Ring | As Layla said, you can use the spherical trig formula in Rob's answer to find the angular distance between the 2 stars. And then you can plug that angle and the distances from Earth to the 2 stars into the cos rule of plane trig to find the distance between them. | |
| Oct 30, 2020 at 5:58 | answer | added | sforsingh | timeline score: 9 | |
| Oct 29, 2020 at 22:14 | comment | added | seVenVo1d | I am not an expert in this, but think about the spherical coordinates. You have two position vectors to the stars $\vec{r_1}$ and $\vec{r_1}$. So the distance between them is simply. $||\vec r_1 - \vec r_2||$. We know their radial distance $r$. Here the problem is that, you need to convert Right ascension and Declination to $\theta$ and $\phi$. But maybe above post helps as well. | |
| Oct 29, 2020 at 22:11 | comment | added | seVenVo1d | See this physics.stackexchange.com/questions/224950/… | |
| Oct 29, 2020 at 17:44 | history | asked | WarpPrime | CC BY-SA 4.0 |