The article discusses how the discovery of a nebula by amateur astronomer Jay McNeil changed the science of stellar astrophysics. Topics include an overview of the link between star formation and X-ray ...
In 1912, Danish astronomer Ejnar Hertzsprung and American astronomer Henry Norris Russell independently graphed the luminosity vs. temperatures for thousands of stars and found a surprising relationship as shown below. This diagram called aHertsprung-Russell or H-R diagramrevealed that most of the sta...
However, another astronomer named Heber Curtis argued that spiral nebulae were merely part of the Milky Way. The debate raged on for years because astronomers needed larger, more powerful, telescopes to resolve the details. 21st-century Innovations In 1924, Edwin Hubble settled the debate. He ...
Major decisions are forthcoming on how to create the infrastructure needifEarth's celestial partner is to become a major thoroughfare and keep up any long-term human habitation there. You may like There are 3 private lunar landers headed to the moon right now — a 1st in space history China...
But that’s not the best place to see it. Ideally, your goal should be to stand beneath the Moon’s darker, inner shadow — the umbra. That’s where day will turn into night, where several planets will become visible, and where the corona — the Sun’s normally invisible outer ...
And I, I regret to say that it’s starting to become a software problem. Fraser Cain [00:22:36] Right. Pamela Gay [00:22:37] Yeah. So there are currently satellites crossing the sky in almost every direction, not literally every direction, because going against the rotation of the ...
In order to see the rest of the star cluster become eclipsed by the moon, an observer should be located to the west of the Mississippi. The farther west, the better. The best region to observe this occultation is the Pacific Northwest and parts of the northern and centra...
A throne bearing a ring sat above the noon marking, defining the top of the astrolabe and providing an attachment point. When he wanted to use the instrument, an astronomer would tie a rope through the ring and let the device hang straight down. Plates Next came a series of plates, with...
Come back to Jupiter a few hours later (or the next night) to see how the positions of the moons have changed. As you become more experienced, you’ll be able to watch as the moons cast shadows upon the planet, disappear behind the world and then reappear as they emerge from out of...
Although Bode suggested this name soon after its discovery, it took several decades to become accepted worldwide.In fact, the English astronomer John Flamsteed had already observed Uranus - but not identified it as a planet - some 90 years before its discovery, but he had assumed it was an...