Monthly Archives: August 2012
Some more on the Curta calculator
What’s really nice about the Curta calculator is that by thinking about the maths problem you want to solve in a logical manner you can minimise the number of handle rotations to calculate the answer. So for example, finding the … Continue reading
Black Type II Curta calculator July 1953
Gaze and weep at this engineering beauty. And remember, this was made in the days before CNC equipment!!! Arrived this morning, courtesy of E-Bay 🙂 🙂
Contrasting star colours in Perseus
Got today’s EPOD with the Algol/Rho Persei image from a while back 🙂 Thank you Jim for continuing to publish my work from the New Forest Observatory.
Vega region – 3.26 x 4.24 degrees, both M26C cameras – mini-WASP array
Took this test image of the Vega region using both Sky 90s and both M26C cameras on the mini-WASP array. One camera is not as well set up (collimation, chip flatness) as the other, but I just wanted to see … Continue reading
Image of the Month – August 2012
This month’s Image of the Month is this incredible capture of M51 by American deep-sky imager Bud Guinn taken from his New Mexico remote observatory. Beautiful image Bud 🙂