noun
definition
The act of ascending; an ascent.
example
The ascension of the hot-air balloon gave us a better view.
definition
That which rises, as from distillation.
Examples of ascension in a Sentence
It is held forty days after Easter, or ten days before Whitsunday, in celebration of Christ's ascension into heaven forty days after the resurrection.
If the local sidereal time of the observation is known, the right ascension of the star becomes known by adding the observed hour angle to the sidereal time if the star is west of the meridian, or subtracting it if east of the meridian.
Ascension is connected by cable with Europe and Africa, and is visited once a month by mail steamers from the Cape.
Add in the ascensional difference to find the oblique ascension.
In 1900 direct telegraph working was established between London and Genoa, and a third cable was laid to South Africa via St Helena and Ascension.
Bessel's practice was to unclamp in declination, lower and read off the head, and then restore the telescope to its former declination reading, the clockwork meanwhile following the stars in right ascension.
These shells do not retain their individuality at depths greater than 1400 or 1500 fathoms, and in fact pteropod ooze is only found in small patches on the ridges near the Azores, Antilles, Canaries, Sokotra, Nicobar, Fiji and the Paumotu islands, and on the central rise of the South Atlantic between Ascension and Tristan d'Acunha.
The word ascensio, adopted in the West, implies the ascension of Christ by his own power, in contradistinction to the assumptio, or taking up into heaven of the Virgin Mary by the power of God.
The hour circle has two toothed circles cut upon it, one acted upon by a worm screw mounted on the pier and driven by clockwork, the other by a second worm screw attached to the polar axis, which can be turned by a handle in the observer's hand and thus a slow movement can be given to the telescope in right ascension inde FIG.
The peculiar form of the tube is eminently suited for rigid preservation of the relative parallelism of the axes of the two telescopes, so that,;i the image of a certain selected star is retained on the intersection of two wires of the micrometer, by means of the driving clock, aided by small corrections given by the observer in right ascension and declination (required on account of irregularity in the clock movement, error in astronomical adjustment of the polar axis, or changes in the star's apparent place produced by refraction), the image of a star will continue on the same spot of the photographic film during the whole time of exposure.
Both the Dorpat and the Pulkovo refractors are defective in rigidity, especially in right ascension.
The slow motion in right ascension is defective, being accomplished in the Dorpat refractor by changing the.
The driving circle is also much too small, so that a very slight mechanical freedom of the screw in the teeth involves a large angular freedom of the telescope in right ascension, while its position at the lower end of a too weak polar axis tends to create instability from torsion of that axis.
The declination circle reads from the eye-end, and four handles for clamping and slow motion in right ascension and declination are situated near the observer's hands.
The observer at the eye-end can also read off the hour and declination circles and communicate quick or slow motions, to the telescope both in right ascension and declination by conveniently Pulkovo, placed handles.
Other water engines, similarly connected, with keys at the observer's hands, rotate the dome and perform the quick motions in right ascension and declination.
The combined overhanging weight of the cast-iron fork, the mirror and tube is so great, that without a very perfect relief-friction system the instrument could not be moved in right ascension with any approach to practical ease.
The telescope is moved in right ascension and declination by electric motors controlled from positions convenient for the observer.
The driving clock moves the telescope in right ascension by means of a worm-gear wheel, 10 ft.
He is provided with quick and slow motions in right ascension and declination, which can be operated from the eye-end, and he can work in a closed and comfortably heated room.
Assuming, for example, that the northern star has the smaller right ascension, the instrument is first, with the aid of the stop, placed in the meridian towards the north; the verniers of the graduated circle g are set to read to the reading 40-2(Sn+Ss) where 0 is the approximate latitude of the place and Sn, Ss the declinations of the northern and southern star respectively; then the level frame h is turned till the levels k and I are in the middle of their run, and there clamped by the screw m, aided in the final adjustment by the adjoining slow motion screw shown in the figure.
Proctor found that between Aldebaran and the Pleiades most of the stars have a motion positive in right ascension and negative in declination, a phenomenon which he designated " star-drift."
It appears to have been imported early into the Cape Verd Islands, where, as also in some of the Greater Antilles and in Ascension, it has run wild.
These crowd at certain seasons in innumerable multitude to certain islands within the tropics, where they breed, and the wonderful assemblage known as " wideawake fair" on the island of Ascension has been more or less fully described from very ancient times.
They consist of paraphrases of parts of Genesis, Exodus and Daniel, and three separate poems, the first on the lamentations of the fallen angels, the second on the "Harrowing of Hell," the resurrection, ascension and second coming of Christ, and the third (a mere fragment) on the temptation.
This, of course, symbolizes the Ascension; but meanwhile the other lamps in the church have received their light from the Paschal Candle, and so symbolize throughout the year the continued presence of the light of Christ.
Joao da Nova discovered Ascension (1501) and St Helena (1502);(1502); Tristao da Cunha was the first to sight the archipelago still known by his name (1506).
Tarata (4681) and Totora (3501) are two important trading centres, and in the department of Santa Cruz, Ascension (pop. 4784) is a large mission station in the Chiquitos hills.
Romulus after his ascension declares it to be the will of heaven that Rome should be mistress of the world; and Hannibal marches into Italy, that he may "set free the world" from Roman rule.
Besides the fairs already mentioned a third was added by Elizabeth's charter to be held on Ascension Day.
Specular iron ore occurs in the form of brilliant metallic scales on many lavas, as at Vesuvius and Etna, in the Auvergne and the Eifel, and notably in the Island of Ascension, where the mineral forms beautiful tabular crystals.
One of the two heads on this dated sheet may probably have been a study for the same St Bernard; it was used afterwards by some follower for a St Leonard in a stiff and vapid "Ascension of Christ," wrongly attributed to the master himself in the Berlin Museum.
The litaniae minores or rogations, held on the three days preceding Ascension Day, were first introduced into Gaul by Bishop Mamertus of Vienne (c. 470), and made binding for all Gaul by the ist Council of Orleans (51 I).
The authors of the Ascension of Isaiah, the Apoc. of Baruch and the Epistle of Barnabas were probably acquainted with it.
Ascension was originally destitute of vegetation save on the summit of Green Mountain, which owes its verdure to the mists which frequently enshroud it, but the lower hills have been planted with grasses and shrubs.
Ascension is noted for the number of turtles and turtle eggs found on its shores, the season lasting from December to May or June.
The island was discovered by the Portuguese navigator, Joao da Nova, on Ascension Day 1501, and was occasionally visited thereafter by ships.
Ascension remained uninhabited till after the arrival of Napoleon at St Helena (1815), when it was taken possession of by the British government, who sent a small garrison thither.
It was at Ascension that Mr, afterwards Sir, David Gill determined, in 1877, the solar parallax.
The first really adequate determinations of solar parallax were those of Sir David Gill, measured by inference from the apparent diurnal shift of Mars among the stars as the earth turned diurnally upon its axis; the observations were made at the island of Ascension in 1878.
Cables connect the colony with Europe (1) via Loanda and Bathurst, (2) via St Helena, Ascension and St Vincent; with Europe and Asia (3) via Natal, Zanzibar and Aden, and with Australia (4) via Natal, Mauritius and Cocos.
These have now to pass down the heated retort on their way to the ascension pipe, and the contact with the heated sides of the retort, and the baking from the radiant heat in the retort, set up an infinity of changes.
The gas developed by the coal near the mouth of the retort is quickly washed out into the ascension pipe by the push of the gas behind, and the period for which it has been exposed to the radiant heat from the walls of the retort is practically nil; whilst the gas evolved in the portion of the retort farthest from the mouthpiece has only its own rate of evolution to drive it forward, and has to traverse the longest run possible in tile retort, exposed during the whole of that period to radiant heat and to contact with the highly heated surface of the retort itself.
A cast iron mouthpiece and lid is bolted to the exterior end of each retort, the mouthpiece carrying a socket end to receive the ascension pipe, through which the gas passes on leaving the retort.
Condensation takes place in the ascension pipe, in the arch piece leading to the hydraulic main, and to a still greater extent in the hydraulic main itself where the gas has to pass through water.
Ascension pipes give trouble unless they are frequently cleared by an instrument called an "auger," whilst the arch pipe is fitted with hand holes through which it may be easily cleared in case of stoppage.
The Fast of the Nativity lasts for twenty-eight days before Christmas; that of the Apostles for a variable number of days from the Feast of the Ascension; and that of the Virgin for fifteen days before the Assumption.
The evens or vigils before Christmas, the Purification of the Blessed Virgin Mary, the Annunciation of the Blessed Virgin Mary, Easter day, Ascension day, Pentecost, St Matthias, the Nativity of St John Baptist, St Peter, St James, St Bartholomew, St Matthew, St Simon and St Jude, St Andrew, St Thomas, and All Saints are also recognized as " fast days."
This angle is called the Longitude, Right Ascension or Azimuth of the body, in the various systems of co-ordinates.
Considering the position of the vernal equinox, and also of a star on the celestial sphere, it will be seen that the interval between the transits of these two points across the meridian may be used to measure the right ascension of a star, since the latter amounts to FIG.