It’s finally live, Sun and Moon / Sonne und Mond—the e-book—is now available for download on iTunes/iBooks to read in Apple Books on your Mac or iPad. I am sooo excited!!!
It’s finally live, Sun and Moon / Sonne und Mond—the e-book—is now available for download on iTunes/iBooks to read in Apple Books on your Mac or iPad. I am sooo excited!!!
Both e-book-versions of Sun and Moon / Sonne und Mond are now available for preorder on Amazon and iBooks/iTunes respectively. You can also download a sample of the e-book on iBooks. Unfortunately, Amazon allows neither a preview nor the downloading of a sample during preorder. If you would like to take a look at some sample pages from the print version instead, you can do that here.
“The day becomes more solemn and serene
When noon is past: there is a harmony
In autumn, and a lustre in its sky,
Which thro’ the summer is not heard or seen,
As if it could not be, as if it had not been!”
—Percy Bysshe Shelley, Hymn to Intellectual Beauty, 1816/7
About three weeks after the meteorological start of fall, today sees the astronomical beginning as well. While last year it felt like we plunged straight from August into November, this year the change is more gradual. There were a few colder days but also days that were still nice and warm.
We owe the seasons to Earth’s axial tilt. As Earth does not orbit the Sun in an upright but in a slightly tilted position, one of Earth’s poles is sometimes tilted more toward the Sun during the orbit and sometimes tilted away. When a pole is tilted toward the Sun, this part of Earth gets more sunlight so that daylight hours are longer and average temperatures higher. In short: it is summer. When a pole is tilted away from the Sun, this part of Earth accordingly gets less sunlight, so that there are fewer hours of daylight and average temperatures are lower; it is winter.
Twice a year there is a time when day and night have the same length as the Sun equally illuminates both the northern and the southern hemisphere. The spring or vernal equinox occurs in March, the fall or autumnal equinox in September. Equi means “equal” in Latin and nox “night”. This year’s autumnal equinox takes place on Sunday, September 23 at 01:54 UTC. Because of time zone differences this is some time today (Saturday, September 22) in the Americas, depending on where you are.
“A book cover is a distillation, a haiku, if you will, of the story.”
Chip Kidd at TED2012
I had a hard time with this cover, more specifically with the cover image. As the title of my book was going to be Sun and Moon, I naturally wanted both the Sun and the Moon on the book cover. While we usually observe the Sun during daytime and the Moon during nighttime, it is actually possible to see them both during the day. However, at and around new moon we most of the time cannot see the Moon as the Sun is not able to illuminate it. And at full moon, the Moon only rises at sunset and sets at sunrise. So I was hoping to catch a Crescent Moon and the Sun together. But I had to find out that either when both orbs were visible they were too far apart for a cover image or it was too cloudy to even see them.
Then I thought an aurora picture with the Moon in it would work too as the solar wind causes the polar lights. If you have followed my aurora adventure though, you know that this did not happen either. I missed the only chance I got for this picture on my first night in Yellowknife as I had traveled since the early morning hours and was simply too cold and tired to stay up any longer for the shot. The next night was too cloudy for any picture and afterwards the Moon was too far away from the lights for a cover shot.
I started to get desperate. Unexpected help arrived, however, in the form of my foreword author Daniel Reisenfeld. Dan is a professor of physics and astronomy at the University of Montana and an absolute expert when it comes to the sky. I am deeply grateful that he not only wrote the foreword for Sun and Moon but also provided a lot of insights and thereby helped making the book more accurate. In his foreword he shared what profound impact the first solar eclipse he observed had on him, back when he was still in high school. When I read his foreword, it just hit me: a solar eclipse image! That was to be my cover image.
So what you see on the cover of Sun and Moon is an image from the August 21, 2017 solar eclipse over North America. The bite taken out of the Sun in the lower left corner is the New Moon partly covering the disc of the Sun at the end of the eclipse. I am really happy with this cover image. Experts on Sun and Moon will know right away what they are looking at and people not so familiar with these two orbs will hopefully get a little curious and take a closer look. Open the book. Read Dan’s foreword, look at the pictures, and maybe want to follow me on …another inspiring and informative journey through the world above.