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Updated: May 22, 2025
Another superb and most striking object is Lacaille's 30 Doradus, a nebula of great size in the larger nubicula, of which it is impossible to give a better idea than to compare it to a "true lover's knot," or assemblage of nearly circular nebulous loops uniting in a centre, in or near which is an exactly circular round dark hole.
"We can point nowhere to anything final but tendency; but tendency appears on all hands; planet, system, constellation, total nature is growing like a field of maize in July; is becoming something else; is in rapid metamorphosis. The embryo does not more strive to be man, than yonder burr of light we call a nebula tends to be a ring, a comet, a globe, and parent of new stars."
We may conceive that analogous separations were effected in the higher strata of the nebula at different epochs, that is to say, at different distances from the nucleus, and that they give rise to a succession of distinct rings, included almost in the same plane and endued with different velocities.
Whatever the nature of these diffused stretches of matter may be, then, the name applies fitly to them, and any theory of the development of a star from them is still a "nebular hypothesis." But the three theories which divide astronomers to-day differ as to the nature of the nebula.
He saw boats and cars and a few long-nosed airplanes, with the merest trace of vestigial wings far back near the empennage, streaking through the sky in high arcs, leaving curling trails of fog and smoke behind them. But there was little here that his world had not already mastered or at least had on the drawing board. The Nebula came to rest upon a bare plain not far from the nearest city.
Within a year the star had faded to less than the tenth magnitude, and its spectrum had completely changed in appearance, and had come to bear a close resemblance to that of a planetary nebula. This has been quoted as a possible instance of a celestial collision through whose effects the solid colliding masses were vaporized and expanded into a nebula.
The years would lengthen out into centuries, and even when the train had been rushing on for a thousand years with an unabated speed of a mile a minute, the journey would certainly not have been completed. Nor do I venture to say what ages must elapse ere the terminus at the other side of the ring nebula would be reached.
Sirius flashing low, Orion's belt with the great nebula swinging like a pendant of diamonds; the ruby stars, Betelgueux and Aldebaran my eyes went up beyond these to Perseus shepherding the Kids westward along the Milky way. From the right Andromeda flashed signals to him: and above sat Cassiopeia, her mother, resting her jewelled wrists on the arms of her throne.
Forms are limitations, and limitations, according to this philosophy, would be defects, so that man's only goal would be to escape humanity and lose himself in the divine nebula that has produced and must invalidate each of his thoughts and ideals. As there would be but one spirit in the world, and that infinite, so there would be but one ideal and that indiscriminate.
Its spectrum was remarkable for being ``continuous, like that of the nebula itself. A continuous spectrum is supposed to represent a body, or a mass, which is either solid or liquid, or composed of gas under great pressure. In January, 1892, a new star was suddenly seen in the constellation Auriga.
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