Timeline for Is it possible to use something besides emulsion to directly record the image of a nighttime object using a telescope?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 25, 2021 at 14:22 | comment | added | uhoh | @MichaelC and how Schiaparelli documented Mars' canali. | |
| Jan 25, 2021 at 10:08 | comment | added | Michael C | @JohnHoltz That's certainly how Galileo did it. | |
| Jan 22, 2021 at 0:00 | history | tweeted | twitter.com/StackAstronomy/status/1352405692188123137 | ||
| Jan 21, 2021 at 22:58 | comment | added | uhoh | @JamesK thanks for the reference! It cites conservation of étendue which is discussed in my answer to Can a telescope ever increase the apparent luminance of an extended object?. Conversely, a new answer posted to that question citing your link is sorely needed. | |
| Jan 21, 2021 at 20:44 | comment | added | James K | xkcd what if has an article about using moonlight to burn (it can't happen for entropy reasons) what-if.xkcd.com/145 That would also rule out the lemon juice (which works by charring) | |
| Jan 21, 2021 at 17:04 | comment | added | JohnHoltz | Pen, pencil and paper? | |
| Jan 21, 2021 at 12:49 | history | asked | uhoh | CC BY-SA 4.0 |