Timeline for Measuring star distance by parallax using a small telescope
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 16, 2016 at 22:02 | comment | added | Phil_12d3 | I've removed this as the answer just because I think there is probably some more discussion to be had. Will choose an answer in a few days if nothing more is said. Thanks though! | |
| Mar 16, 2016 at 17:52 | history | edited | Andy | CC BY-SA 3.0 |
Corrected after looking up spec of instruments actually used for early parallax measurements
|
| Mar 16, 2016 at 17:13 | comment | added | ProfRob | The very first parallax did indeed use the double star technique. | |
| Mar 16, 2016 at 17:05 | comment | added | Andy | Hmmm I assume they'd measure star separations between the centres of airy discs. I doubt that's very precise with the amateur gear mentioned though. (Perhaps you're right my answer is concentrating too much on resolving power, repeatability is the real problem.) | |
| Mar 16, 2016 at 16:42 | comment | added | ProfRob | How do you think parallaxes were obtained in the 19th century? The size of the seeing disc, while related to the precision that can be achieved, is not the limiting precision achievable. | |
| Mar 16, 2016 at 10:43 | vote | accept | Phil_12d3 | ||
| Mar 16, 2016 at 21:58 | |||||
| Mar 16, 2016 at 10:36 | history | answered | Andy | CC BY-SA 3.0 |