Chuck Norcutt <norcutt@xxxxxxx> moved upon the face of the 'Net and spake
thusly:
[mega snip]
> ...It has been
> estimated that it would take a 400 inch telescope to image the star with
> the largest angular diameter as a disk. I don't know which star has the
> largest angular diameter but I'd guess that Betelguese has to be near
> the top.
Betelgeuse has recently been resolved to a disc with the aid of the
BLT[1] and speckle-interferometry.
cjb.
[1] Bloody Large Telescope. It was either Keck or the new european
one in Chile whose rather dull name escapes me just now[2].
[2] Can't find the references, but here's more data. HST and Mt
Wilson have both measured the angular diameter of some stars.
Measuring the diameter is not quite the same as imaging the
disk, though.
http://www.aas.org/publications/baas/v28n2/aas188/abs/S071006.html
http://www.mtwilson.edu/Tour/100inch/20ftI/
--
------------------ Linux hackers do it in protected mode -------------------
| Christopher Biggs - Software Engineer, Stallion Technologies, Australia |
| chris@xxxxxxxxxxxxxx - CEO, J.Random Deadguy Institute for Weird Studies |
------- Mathematics and alcohol don't mix --- Never drink and derive -------
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|