XV. Account of the changes that have happened, during the last twenty-five years, in the relative situation of double-stars; with an investigation of the cause to which they are owing

1803 ◽  
Vol 93 ◽  
pp. 339-382 ◽  
Keyword(s):  
Solar System ◽  
The Other ◽  
The Sun ◽  
Double Stars ◽  
Celestial Bodies ◽  
Planets And Satellites ◽  
The Subject ◽  
Elliptical Orbits ◽  
Asteroids And Comets

In the Remarks on the Construction of the Heavens, contained in my last Paper on this subject, I have divided the various objects which astronomy has hitherto brought to our view, into twelve classes. The first comprehends insulated stars. As the solar system presents us with all the particulars that may be known, respecting the arrangement of the various su­bordinate celestial bodies that are under the influence of stars which I have called insulated, such as planets and satellites, asteroids and comets, I shall here say but little on that subject. It will, however, not be amiss to remark, that the late addition of two new celestial bodies, has undoubtedly enlarged our know­ledge of the construction of the system of insulated stars. Whatever may be the nature of these two new bodies, we know that they move in regular elliptical orbits round the sun. It is not in the least material whether we call them asteroids, as I have proposed; or planetoids, as an eminent astronomer, in a letter to me, suggested; or whether we admit them at once into the class of our old seven large planets. In the latter case, however, we must recollect, that if we would speak with precision, they should be called very small, and exzodiacal; for, the great inclination of the orbit of one of them to the ecliptic, amounting to 35 degrees, is certainly remarkable. That of the other is also considerable; its latitude, the last time I saw it, being more than 15 degrees north. These circumstances, added to their smallness, show that there exists a greater variety of arrange­ment and size among the bodies which our sun holds in subor­dination, than we had formerly been acquainted with, and extend our knowledge of the construction of the solar, or insulated sidereal system. It will not be required that I should add any thing farther on the subject of this first article of my clas­sification; I may therefore immediately go to the second, which treats of binary sidereal systems, or real double stars.

Things at the Edge of the World

2019 ◽  
pp. 105-120
Author(s):  
David Wood
Keyword(s):  
Nonhuman Animal ◽  
The Other ◽  
The Sun ◽  
Entire Domain ◽  
The World ◽  
Combined Operation ◽  
The Subject ◽  
The Stranger

This chapter describes things at the edge of the world as sites at which events of reversal and transformation take place. It looks at three examples of reversals: people's experience of the sun; the nonhuman animal; and that of the other human, which is divided into three—the sexual other, the stranger, and the enemy. In each case, a thing that begins as an object of experience becomes the site of an event of reversal and transformation in which not only the subject is implicated in an unexpected way but the world, or a part of it, is poised for restructuration and for the proliferation of new chains of possibility. The chapter then suggests that the entire domain marked by these events of reversal and transformation is generated by the combined operation of three different phenomena. These include (1) the primordial constitution of selfhood, (2) variable modes of identification with that self, and (3) the projection of modes of otherness consistent with one's manner of self-relatedness.

A search for ‘frozen optical messages’ from extraterrestrial civilizations

2002 ◽  
Vol 1 (1) ◽  
pp. 71-73 ◽  
Author(s):  
R. Weinberger ◽  
H. Hartl
Keyword(s):  
Solar System ◽  
The Other ◽  
Physical Processes ◽  
High Quality ◽  
Sky Surveys ◽  
Systematic Examination ◽  
Other Hand ◽  
Celestial Bodies ◽  
The One

For a quarter of a century we have been engaged in a systematic examination of high-quality photographic (optical) sky surveys in the search for new celestial bodies of various kinds. It took about 5000 hours to cover the whole northern celestial hemisphere and half of the southern one. In total, about 12000 new objects were discovered. From the very beginning of our programme we also searched for objects (or groupings of them) of rather peculiar morphology. The motivation was to detect objects revealing exceptional physical processes, on the one hand, but also to discover constructions possibly created by advanced extraterrestrial civilizations (ETCs), on the other hand. A number of very peculiar objects were indeed found (these were mostly studied in detail later), but none of these appeared likely to be the product of alien masterminds. We may conclude that at least within about 10000–20000 light-years around the Solar system no highly advanced ETCs intend to reveal themselves through such objects.

Atmospheres as a clue to the early Solar System

1988 ◽  
Vol 325 (1587) ◽  
pp. 569-582 ◽  
Keyword(s):  
Solar System ◽  
Observational Data ◽  
Terrestrial Planets ◽  
The Sun ◽  
Early Solar System ◽  
Secondary Formation ◽  
Planets And Satellites

Conditions that could have applied in the environments of the major planets when they were forming make it possible that the present icy mantles of the larger satellites were then oceans and vapour atmospheres encasing silicate—ferrous cores. The major constituents are explored by comparison with the present atmospheres of the terrestrial planets. It is further suggested that the primary condensations during the formation of the Solar System were the Sun and the major planets, and that the terrestrial planets and satellites were a secondary formation. Some observational data are offered in support of the arguments and future tests are suggested.

scholarly journals Planets in Double Stars: The ϒ Cephei System

2004 ◽  
Vol 191 ◽  
pp. 222-226 ◽  
Author(s):  
R. Dvorak ◽  
E. Pilat-Lohinger ◽  
E. Bois ◽  
B. Funk ◽  
F. Freistetter ◽  
...  
Keyword(s):  
Solar System ◽  
The Sun ◽  
Stable Orbit ◽  
Orbital Parameters ◽  
Double Stars ◽  
The Stability

AbstractUp to now we have evidence for some 15 planets moving in double stars. They are all of the so-called S-type, which means that they are orbiting one of the primaries. Only two of the binaries have separations in the order of the distances where the planets in our Solar system orbit the Sun, namely Gliese 86 and ϒ Cep. In this study we investigate the stability of the recently discovered planet in ϒ Cep with respect to the orbital parameters of the binary and of the planet. Additionally we check the region inside and outside the planet’s orbit (a = 2.1 AU). Even when the mass of an additional planet in 1 AU would be in the order of that of Jupiter, the discovered planet would be in a stable orbit.

scholarly journals XII. Radiation in the solar system: its effect on temperature and its pressure on small bodies

1904 ◽  
Vol 202 (346-358) ◽  
pp. 525-552 ◽  
Keyword(s):  
Solar System ◽  
Power Law ◽  
Effective Temperature ◽  
Interplanetary Space ◽  
The Other ◽  
Fourth Power ◽  
The Sun ◽  
Planetary Surfaces ◽  
Solar Constant ◽  
Small Bodies

When a surface is a full radiator and absorber its temperature can be determined at once by the fourth-power law if we know the rate at which it is radiating energy. If it is radiating what it receives from the sun, then a knowledge of the solar constant enables us to find the temperature. We can thus make estimates of the highest temperature which a surface can reach when it is only receiving heat from the sun. We can also make more or less approximate estimates of the temperatures of the planetary surfaces by assuming conditions under which the radiation takes place, and we can determine, fairly exactly, the temperatures of very small bodies in interplanetary space. These determinations require a knowledge of the constant of radiation and of either the solar constant or the effective temperature of the sun, either of which, as is well known, can be found from the other by means of the radiation constant. It will be convenient to give here the values of these quantities before proceeding to apply them to our special problems.

scholarly journals The Antikythera Mechanism: The oldest mechanical universe in its scientific milieu

2009 ◽  
Vol 5 (S260) ◽  
pp. 135-148 ◽  
Author(s):  
Xenophon Moussas
Keyword(s):  
Main Part ◽  
Accurate Prediction ◽  
The Other ◽  
Stationary Points ◽  
Analogue Computer ◽  
The Sun ◽  
The Moon ◽  
Celestial Bodies ◽  
Celestial Sphere ◽  
Astronomical Instrument

AbstractIn this review the oldest known advanced astronomical instrument and dedicated analogue computer is presented, in context. The Antikythera Mechanism a mysterious device, assumed to be ahead of its time, probably made around 150 to 100 BCE, has been found in a 1st century BCE shipwreck near the island of Antikythera in a huge ship full of Greek treasures that were on their way to Rome. The Antikythera Mechanism is a clock-like device made of bronze gears, which looks much more advanced than its contemporary technological achievements. It is based on mathematics attributed to the Hipparchus and possibly carries knowledge and tradition that goes back to Archimedes, who according to ancient texts constructed several automata, including astronomical devices, a mechanical planetarium and a celestial sphere. The Antikythera Mechanism probably had a beautiful and expensive box; looking possibly like a very elaborate miniature Greek Temple, perhaps decorated with golden ornaments, of an elegant Hellenistic style, even perhaps with automatic statuettes, ‘daemons’, functioning as pointers that performed some of its operations. Made out of appropriately tailored trains of gears that enable to perform specialised calculations, the mechanism carries concentric scales and pointers, in one side showing the position of the Sun in the ecliptic and the sky, possibly giving the time, hour of the day or night, like a clock. The position of the Moon and its phase is also shown during the month. On the other side of the Mechanism, having probably the size of a box (main part 32×20×6 cm), are two large spiral scales with two pointers showing the time in two different very long calendars, the first one concerning the eclipses, and lasting 18 years 11 days and 8 hours, the Saros period, repeating the solar and lunar eclipses, and enabling their prediction, and the 19 year cycle of Meton, that is the period the Moon reappears in the same place of the sky, with the same phase. An additional four-year dial shows the year of all Greek Festivities, the so-called ‘games’ (Olympic, Pythian, Isthmian etc). Two additional dials give the Exeligmos, the 54 year and 34 day cycle, which provides a more accurate prediction of eclipses. It is possible that the Mechanism was also equipped with a planetary show display, as three of the planets and their motion (stationary points) are mentioned many times in the manual of the instrument, so it was also a planetarium. From the manual we have hints that the mechanism was probably also an observational instrument, as having instructions concerning a viewfinder and possibly how to orient the viewfinder to pass a sunbeam through it, probably measuring the altitude of the Sun. There are fragmented sentences that probably give instructions on how to move the pointers to set the position of the Sun, the Moon and the planets in their initial places in the ecliptic, on a specific day, or how to measure angular distances between two celestial bodies or their coordinates. This mechanism is definitely not the first one of its kind. The fact that it is accompanied with instructions means that the constructor had in its mind to be used by somebody else and one posits that he made at least another similar instrument.

scholarly journals Verbal and Non-Verbal Communication in Product Placement “Descendants of the Sun”

K ta Kita ◽  
2018 ◽  
Vol 5 (2) ◽  
pp. 72-76
Author(s):  
Jonatan Alexander
Keyword(s):  
Interpersonal Relations ◽  
Product Placement ◽  
Verbal Communication ◽  
The Other ◽  
Emotional Communication ◽  
The Sun ◽  
Verbal Cues ◽  
Other Hand ◽  
The Subject ◽  
Formal Relationship

This study is intended to find out the meaning behind verbal and non-verbal communication in product placement in Korean drama, Descendant of the Sun. Conducting this study, I apply the theory process of signification proposed by Saussure (1974) and Chandler (2007) and Kinesics proposed by Birdwhistell (1970). The subject of this study is verbal and non-verbal communication in product placement in Korean drama Descendants of the Sun. The data was collected through video media from AsianNet.com and several resources. The findings of this study showed that verbal and non-verbal communication in drama DOTS creates the meaningful messages to its viewers. The findings also show that almost everything in the product placement, possibly have communicative purpose to its viewers. This study also found that non-verbal expressions are generally used to support the verbal communication and it is central to interpersonal relations because non-verbal cues are generally important in emotional communication. On the other hand, verbal communication is central to official or formal relationship. Moreover, the verbal and non-verbal communication in product placement mainly have communicative purpose to encourage, inform, persuade even change the opinion to its viewers to buy, use and know more about the products and services.

XVI. On the direction and velocity of the motion of the sun, and solar system

1805 ◽  
Vol 95 ◽  
pp. 233-256 ◽  
Keyword(s):  
Solar System ◽  
Relative Position ◽  
The Sun ◽  
Proper Motions ◽  
Double Stars ◽  
Solar Motion ◽  
High Degree

Our attention has lately been directed again to the construc­tion of the heavens, on which I have already delivered several detached papers. The changes which have taken place in the relative position of double stars, have ascertained motions in many of them, which are probably of the same nature with those that have hitherto been called proper motions. It is well known that many of the principal stars have been found to have changed their situation, and we have lately had a most valuable acquisition in Dr. Maskelyne's Table of proper motions of six and thirty of them. If this Table affords us a proof of the motion of the stars of the first brightness, such as are probably in our immediate neighbourhood, the changes of the position of minute double stars that I have ascertained, many of which can only be seen by the best telescopes, likewise prove that motions are equally carried on in the remotest parts of space which hitherto we have been able to penetrate. The proper motions of the stars have long engaged the attention of astronomers, and in the year 1783, I deduced from them, with a high degree of probability, a motion of the sun and solar system towards λ Herculis. The reasons which were then pointed out for introducing a solar motion, will now be much strengthened by additional considerations; and the above mentioned Table of well ascertained proper motions will also enable us to enter rigorously into the necessary calculations for ascertaining its direction, and discovering its velocity. When these points are established, we shall be prepared to draw some consequences from them that will account for many phenomena which otherwise cannot be explained.

scholarly journals IX. On the tidal friction of a planet attended by several satellites, and on the evolution of the solar system

1881 ◽  
Vol 172 ◽  
pp. 491-535 ◽  
Keyword(s):  
Solar System ◽  
Central Body ◽  
The Sun ◽  
Tidal Friction ◽  
The Earth ◽  
History Of ◽  
The Subject ◽  
Complete Investigation

In previous papers on the subject of tidal friction I have confined my attention principally to the case of a planet attended by a single satellite. But in order to make the investigation applicable to the history of the earth and moon it was necessary to take notice of the perturbation of the sun. In consequence of the largeness of the sun’s mass it was not there requisite to make a complete investigation of the theory of a planet attended by a pair of satellites. In the first part of this paper the theory of the tidal friction of a central body attended by any number of satellites is considered.

scholarly journals Dowsing the ‘Vital Energy’ of the Planets and their Moons

2020 ◽  
pp. 59-64
Author(s):  
John F. Caddy
Keyword(s):  
Solar System ◽  
Volcanic Activity ◽  
Energy Production ◽  
The Other ◽  
The Sun ◽  
Short Discussion ◽  
Gravitational Forces ◽  
The Earth ◽  
High Production

An experimental dowsing of the planetary and lunar bodies of the solar system suggests that all planetary and lunar names evoke some degree of energetic excitation reflecting that of the bodies themselves. The highest values of pranic energy were found for Jupiter and the other large distant planets, and for moons close to their planet which are subject to gravitational forces and show volcanic activity. The Earth, Venus and Mars show similar moderate-high levels of pranic energy, but the low-moderate scores for pranic energy shown by Mercury and the Sun seem to verify that subtle energy production is incompatible with high production or high levels of conventional photonic radiation. A short discussion of the implications of these observations follows.

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