Vega has a parallax of 0. 129 ", and an apparent magnitude of + 0. 03

It is an A-type main sequence star with an apparent visual magnitude of 0. 77 and is one of the vertices of the Summer Triangle ( the other two vertices are marked by Deneb and Vega ).

Vega is also a suspected variable star that may vary slightly in magnitude in a periodic manner.

To standardize the magnitude scale, astronomers chose Vega to represent magnitude zero at all wavelengths.

This star lies at a vertex of a widely spaced asterism called the Summer Triangle, which consists of the zero-magnitude stars Vega in the constellation Lyra and Altair in Aquila, plus the first magnitude star Deneb in Cygnus.

Vega will eventually become the brightest star in the sky in around 210, 000 years, will attain a peak brightness of magnitude – 0. 81 in about 290, 000 years and will be the brightest star in the sky for about 270, 000 years.

From the perspective of an observer on a hypothetical planet around Vega, the Sun would appear as a faint 4. 3 magnitude star in the Columba constellation.

Lengths with order of magnitude 1e17m: yellow Vernal Point arrow traces hundred light year radius circle with smaller ten light year circle at right ; globular cluster Messier 5 in background ; 12 light year radius Orion Nebula middle right ; 50 light year wide view of the Carina Nebula bottom left ; Pleiades cluster and Bubble nebula with similar diameters each around 10 light years bottom right ; grey arrows show distances from Sun to stars Aldebaran ( 65 light years ) and Vega ( 25 light years ).

Altair's total X-ray luminosity is at least an order of magnitude larger than the X-ray luminosity for Vega.

Bond took the first photograph of a star in 1850 ( Vega ) and of a double star in 1857 ( Mizar ); suggested photography could be used to measure a star's magnitude ; and discovered numerous comets and calculated their orbits.

The Summer Triangle of Deneb, Altair, and Vega — α Cygni, α Aquilae, and α Lyrae — is easily recognized, as its three stars are all of the 1st magnitude.

It is the brightest star in the constellation Auriga, the sixth brightest star in the night sky, the third brightest star in the northern celestial hemisphere ( after Arcturus and Vega ), and the fourth brightest star visible to the naked eye from the latitude 40 ° N. It is closer to the north celestial pole than any other first magnitude star ( Polaris is only second magnitude ).

The total operation was a construction project comparable in magnitude with the Panama Canal, but in 1917 time was in short supply ; ;

Ninety per cent of the 153 recorded impacts occurred between midnight and noon, and from day to day the variation of the rate was as much as an order of magnitude.

Because constitutional claims are of great magnitude, appellate courts might be more lenient to review the claim even if it was not preserved.

In other words, the absolute magnitude of any object equals the apparent magnitude it would have if it was 10 parsecs away.

It occurred soon before an eclipse of the Sun that was observed at Rome on 25 June 745 BC and had a magnitude of 50. 3 %.

Robert Hooke, in 1674, published his observations of γ Draconis, a star of magnitude 2 < sup > m </ sup > which passes practically overhead at the latitude of London, and whose observations are therefore free from the complex corrections due to astronomical refraction, and concluded that this star was 23 ″ more northerly in July than in October.

It was a financial relief of some magnitude when, in 1889, Henry was made Bishop of Tasmania, then still a British colony.

Another adjunct, the varying speed of light model has also been theorized by Jean-Pierre Petit in 1988, John Moffat in 1992 as well Andreas Albrecht and João Magueijo in 1999, instead of superluminal expansion the speed of light was 60 orders of magnitude faster than its current value solving the horizon and homogeneity problems in the early universe.

It has a relatively high orbital inclination, but at the time of Tombaugh's discovery of Pluto, Makemake was only a few degrees from the ecliptic near the border of Taurus and Auriga at an apparent magnitude of 16.

The inaugural Cricket World Cup was hosted in 1975 by England, the only nation able to put forward the resources to stage an event of such magnitude at that time.

The most recent large earthquake of magnitude 9. 0 or larger was a 9. 0 magnitude earthquake in Japan in 2011 ( as of March 2011 ), and it was the largest Japanese earthquake since records began.

This view was elaborated in traditional Jain cosmology and Buddhist cosmology, which depicts the cosmos as a vast, flat oceanic disk ( of the magnitude of a small planetary system ), bounded by mountains, in which the continents are set as small islands.

It was an interesting concept, although something that was also under explained considering the magnitude of such an occurrence of the creatures merging.

:" The importance of the Drake well was in the fact that it caused prompt additional drilling, thus establishing a supply of petroleum in sufficient quantity to support business enterprises of magnitude.

Likewise, the price of shot for reloading shotshells over the last several years has also risen by an order of magnitude, such that lead shot that was readily available for around $ 0. 50 / lb.

The Hagia Sophia architects innovatively combined the longitudinal structure of a Roman basilica and the central plan of a drum-supported dome, in order to withstand the high magnitude earthquakes of the Marmara Region, “ However, in May 558, little more than 20 years after the Church ’ s dedication, following the earthquakes of August 553 and December 557, parts of the central dome and its supporting structure system collapsed .” The Hagia Sophia was repeatedly cracked by earthquakes and was quickly repaired.

On March 11, 2011 the country was subject to a devastating 9. 0 magnitude earthquake and a massive tsunami as a result.

Absolute magnitude ( also known as absolute visual magnitude when measured in the standard V photometric band ) is the measure of a celestial object's intrinsic brightness.

In defining absolute magnitude one must specify the type of electromagnetic radiation being measured.

The more numerous earthquakes smaller than magnitude 5 reported by national seismological observatories are measured mostly on the local magnitude scale, also referred to as the Richter scale.

Such differences in order of magnitude can be measured on the logarithmic scale in " decades " ( i. e. factors of ten ).

The constituency or district magnitude ( DM ) of a system is therefore measured by the number of seats per constituency.

Because they are so distant, they are apparently stationary to our current technology, yet their positions can be measured with the utmost accuracy by Very Long Baseline Interferometry ( VLBI ); positions of most are known to 0. 001 arcsecond or better, orders of magnitude more precise than the best optical measurements.

: r is the displacement vector ( a vector from the point from which torque is measured to the point where force is applied ), and r is the length ( or magnitude ) of the lever arm vector,

where h is the maximum tsunami-wave amplitude ( in m ) measured by a tide gauge at a distance R from the epicenter, a, b & D are constants used to make the M < sub > t </ sub > scale match as closely as possible with the moment magnitude scale.

If multimode fiber bandwidth is measured using a laser diode directly coupled to its input, the resulting measurement can vary by as much as an order of magnitude.

The TOI, being related to the magnitude squared of the input voltage waveform, is a power quantity, typically measured in milliwatts ( mW ).

The quake's surface wave measured 7. 1 on the Richter magnitude scale, and many structures in Oakland were badly damaged.

Although lower on the moment magnitude scale than the quake of September 2010, the intensity and violence of the ground shaking was measured to be VIII on the MMI and among the strongest ever recorded globally in an urban area due to the shallowness and proximity of the epicentre.

Before the earthquake of February 27, 2010, which measured 8. 8 on the moment magnitude scale, the last catastrophic earthquake to strike Valparaíso devastated the city in August 1906, killing nearly 3, 000 people.

The magnitude was measured at 4. 5 with numerous aftershocks felt throughout the Monterey Peninsula and as far north as San Francisco.

This one measured 4. 1 in magnitude and ranks as the third largest earthquake in Minnesota of the 1900s.

Listed below are all known earthquakes measured or estimated to have a moment magnitude scale or Richter magnitude scale of 8. 5 and above.

Although the wavefunction contains information, it is a complex number valued quantity ; only its relative phase and relative magnitude can be measured.

The magnitude of a news event could be measured by whether Brokaw and his counterparts on the other two networks showed up on the scene.

Centred 15 km north of Napier, it lasted for two and a half minutes and measured magnitude 7. 8 M < sub > s </ sub > ( magnitude 7. 9 M < sub > w </ sub >).

First he measured thirteen nearby cepheid variables to find the absolute magnitude of a variable with a period of one day.