If the Dutch astronomer, Christian Huygens, were to appear ghostly ;-) before us today with a challenge: can you see Mars' Syrtis Major? On Nov. 28, 1659, he turned his self-constructed 2-inch (51mm) telescope to Mars and made his first drawing (and discovery) with his self-constructed Huygens eyepiece yielding 50x of Syrtis Major! At the time, Mars was only around 17 arcsec in size and it was probably quite low on the horizon at his latitude (about same
altitude was where Mars is today). Now remember this was before the time of the achromat!
http://www.uapress.arizona.edu/online.bks/mars/chap02.htm
OK, surely your whatever small telescope (or Light Cup) can do it too, couldn't it? Slap/Slap on both cheeks :-@. Mars is now around 16.75 arcsec and Syrtis Major is well position for the Americas west coast. Alas, I don't have a Huygens eyepiece, but I guess my 20mm Tele Vue Plossl (44x with my TV-102 Light Cup) will have to do (I've got a 51mm aperture mask ready also).
How about it?
Ron B[ee]
altitude was where Mars is today). Now remember this was before the time of the achromat!
http://www.uapress.arizona.edu/online.bks/mars/chap02.htm
OK, surely your whatever small telescope (or Light Cup) can do it too, couldn't it? Slap/Slap on both cheeks :-@. Mars is now around 16.75 arcsec and Syrtis Major is well position for the Americas west coast. Alas, I don't have a Huygens eyepiece, but I guess my 20mm Tele Vue Plossl (44x with my TV-102 Light Cup) will have to do (I've got a 51mm aperture mask ready also).
How about it?
Ron B[ee]