When the Ming Dynasty Chinese astronomer Xu Guangqi adapted the European southern hemisphere constellations to the Chinese system in The Southern Asterisms, he combined Apus with some of the stars in Octans to form the " Exotic Bird " ( 異雀, Yìquè ).

When he shifted between the two images, a moving object, such as a planet, would appear to jump from one position to another, while the more distant objects such as stars would appear stationary.

When the universe was young, before the formation of stars and planets, it was smaller, much hotter, and filled with a uniform glow from its white-hot fog of hydrogen plasma.

When he plotted the spectral types of these stars against their absolute magnitude, he found that dwarf stars followed a distinct relationship.

When ordered by temperature and when duplicate classes were removed, the spectral types of stars followed, in order of decreasing temperature with colors ranging from blue to red, the sequence O, B, A, F, G, K and M. ( A popular mnemonic for memorizing this sequence of stellar classes is " Oh Be A Fine Girl / Guy, Kiss Me ".

When integrated over the radius, this implies that for b = 1, the total number of stars is proportional to r < sup > 2 </ sup >.

When he turned the telescope toward some of the nebulous patches recorded by Ptolemy, he found they were not a single star, but groupings of many stars.

When a Hertzsprung-Russell diagram is plotted for an open cluster, most stars lie on the main sequence.

When the observer is on the terrestrial Arctic Circle and the radius of the circumpolar stars is 66 ° the celestial Arctic Circle is identical to the celestial Tropic of Cancer.

When two such stars have a relatively close orbit, their gravitational interaction can have a significant impact on their evolution.

When the temperature and pressure in the core become sufficient to ignite helium fusion, a helium flash will occur if the core is largely supported by electron degeneracy pressure ( stars under 1. 4 solar mass ).

When the team was renamed the Titans, the club introduced a new logo: A circle with three stars, similar to that found on the flag of Tennessee containing a large " T " with a trail of flames similar to a comet.

When the film was released, it received mixed reviews, particularly about its controversial content, but Lombard's performance was hailed as the perfect send off to one of 1930s Hollywood's most important stars.

When viewed edge-on, prominent dust-lanes are sometimes visible in absorption against the light of stars in the disk.

When Crawford saw the unflattering photos of both stars that appeared in the papers the next day, she said, " If that's how I look, then they won't see me anymore.

When such stars transition to supernovas, they may emit intense beams of gamma rays, and if Earth were to lie in the beam zone, devastating effects may occur.

When a planet travels eastward in relation to the stars, it is called prograde.

When the planet travels westward in relation to the stars ( opposite path ) it is called retrograde.

This was never written down by Mach, but was given a graphic verbal form, attributed by Philipp Frank to Mach himself, as, " When the subway jerks, it's the fixed stars that throw you down.

When studies were first made of the stars ' proper motions, it was found that they are all moving in the same direction across the sky, at the same rate, further demonstrating that they were related.

When this play moved to the Criterion in Piccadilly with Michael Codron directing, he was visited backstage by Stanley Baker, one of the four stars in Caine's first film, A Hill In Korea, who told him about the part of a Cockney corporal in his upcoming film Zulu, a film Baker was producing and starring in.

Strong box office performances were recorded in 2009-10 by Bruce Beresford's Mao's Last Dancer ; the Aboriginal musical Bran Nue Dae the dramatization of John Marsden's novel Tomorrow, When the War Began ; and the crime drama Animal Kingdom which featured major Australian screen stars Ben Mendelsohn, Joel Edgerton, Guy Pearce and Jackie Weaver.

When an astronomer says " Andromeda Galaxy | M31 is situated in the Andromeda ", this does not assert a proximity of that galaxy to stars of the Andromeda constellation in the space | 3-dimensional space.

When I show up he will know you are a good wife to have told him about it ''.

When the Know-nothings get control, it will read, All men are created equal except Negroes and foreigners and Catholics.

When the reactionary response is thus bolstered by an intellectual defense, the characteristics of that defense are explicable only in terms of the basic attitudes of unanalyzed reaction.

When combined with the metaphysical notion that pure forms of this universe are best appreciated when least embodied in a material substratum, it becomes clear that while earth will be dross on a scale of material-formal ratios, celestial bodies will be of a subtle, quickened, ethereal existence, in whose embodiment pure form will be the dominant component and matter will be absent or remain subsidiary.

She used to tell me, `` When I stand there and look at the flag blowing this way and that way, I have the wonderful, safe feeling that Americans are protected no matter which way the wind blows ''.

When we consider the disorganized state of the world community, and the legacy of predispositions adversely directed against all who are identified as Jews, it is obvious that the struggle for the minds and muscles of men needs to be prosecuted with increasing vigor and skill.

When these fields are surveyed together, important patterns of relationship emerge indicating a vast community of reciprocal influence, a continuity of thought and expression including many traditions, primarily literary, religious, and philosophical, but frequently including contact with the fine arts and even, to some extent, with science.

When different colors are used, she is just as likely to color trees purple, hair green, etc..

When finally the two bedraggled men reach their friend's home, Voltaire's fears are once again aroused.

`` When are you to leave ''??

When the roof blocks are all in place, the final rows of wall blocks are mortared into position.

When the aid operations are reorganized the Peace Corps should remain a semi-autonomous, functional unit.

When the budget goes to trustees for approval it is the president's budget, to which his faith and credit are committed ; ;

When they have 4 to 6 leaves and are thrifty little plants, it's time to set them out where they are to remain.

When aircraft are no longer helpless on airfields, they are no longer vulnerable to Aj.

When more than two figures are separated by subtraction symbols the subtraction must be carried out from the left to right if the result is to be correct.

When they're on, the top edges are planed even with the sheer batten.

When painting, Mason's physical eyes are half-closed, while his mind's eye is wide open, and this circumstance accounts in part for the impression he wishes to convey.

When improvements are recommended in working conditions -- such as lighting, rest rooms, eating facilities, air-conditioning -- do you try to set a measure of their effectiveness on productivity??

When sufficiently accurate and complete measurements are available, it will be possible to set limits on the thermal and electrical characteristics of the surface and subsurface materials of the moon.

When some thirteen records of newly and recently born individuals are collated, little or no correlation between length and distribution can be detected.

When three dice are tossed repeatedly, what is the probability that the number of aces is 0 ( or 1, or 2, or 3 )??