It has brightened since about 1940, peaking above magnitude 4.5 in 2014. Eta Carinae is circumpolar south of latitude 30°S, so it is never seen north of latitude 30°N.
This stellar system is currently one of the most massive that can be studied in detail. Until recently, Eta Carinae was thought to be the most massive single star, but in 2005 it was proved to be a binary system. The most massive star in the Eta Carinae multiple star system probably has more than 100 times the mass of the Sun. There are other massive stars which are known to be more luminous and are more massive.
Stars like Eta Carinae produce over a million times as much light as the Sun. They are quite rare — only a few dozen are present in a galaxy the size of the Milky Way. They are assumed to be near or over the Eddington limit. That means the outward pressure of their radiation is almost strong enough to counteract gravity. Stars over 120 solar masses exceed the Eddington limit, and their gravity is barely strong enough to hold in their radiation and gas.
Eta Carinae's chief significance for astrophysics is its giant eruption, which was observed around 1843. In a few years, Eta Carinae produced almost as much visible light as a supernova explosion, but it survived. It was a 'supernova impostor' or 'failed supernova'. Eta Carinae's giant eruption was the prototype for this phenomenon.
One remarkable aspect of Eta Carinae is its changing brightness. It is currently classified as a luminous blue variable (LBV) binary star due to peculiarities in its pattern of brightening and dimming.
The ionizing radiation emitted by the secondary star in Eta Carinae is the major radiation source of the system. Much of this radiation is absorbed by the primary stellar wind.
Anne Sexton
Anne Sexton (November 9, 1928 - October 4, 1974) was an American novelist, poetry and children's book writer. She wrote primarily about topics like mental illness and severe depression. She was born near Boston, Massachusetts. She later committed suicide by way of carbon monoxide poisoning. She was 45.
Leerdam
Leerdam is a city in the Netherlands, in the province of Utrecht. It has about 21,000 inhabitants (2016). Since 2019, it has been part of the new municipality of Vijfheerenlanden. Until 2019, Leerdam was a municipality in the province of South Holland.
Khmer
Khmer might mean:
Helen Twelvetrees
Helen Twelvetrees (December 25, 1908 - February 13, 1958) was an American movie and stage actress. She acted in many stage plays from the 1920s to the early 1950s. Twelvetrees was born in Brooklyn, New York. She killed herself by using sedative drugs.
Tribadism
Tribadism is a lesbian sexual act in which a woman rubs her vulva against her partner's vulva or another part of her partner's body for sexual stimulation. It is also known as scissoring, a sex position in which the women intertwine their legs and rub their vulvas together, or as tribading or tribbing.
Federal monarchy
A federal monarchy is a federation of states with a single monarch as overall head of the federation, but also having lesser monarchs, or a republican system of government, in the various states joined to the federation. An example is Malaysia.
Geniocracy
Geniocracy is a kind of government. In this system, very intelligent people, geniuses, control the country. Supporters of this kind of government believe that if the smartest people rule, it will be good for the people. Scientists and sociologists would run the country using their good ideas.
Democratic republic
A democratic republic is a country which is both a republic and a democracy. Which means that a country where the people can take part in the decisions that affect the way their community is run and one with no monarch. Countries which call themselves democratic republics do not always hold free or fair elections elections. For example, the German Democratic Republic, a socialist dictatorship.
Mob rule
Mob rule is sometimes called "ochlocracy" or "mobocracy". There is sometimes no legal government, and mobs of people decide whatever they want. It is government by a mob (crowd of people). In this system, the mob becomes the ruler or dominant force in society. Actually, it is rare for a whole country to be under mob rule. More frequent is for part of the country to overthrow its leaders and be for a time without a government. Parts of a country may try to secede (break off) from the country. That has been quite common in certain parts of the world.
Mobs do have leaders, who make speeches complaining about what is wrong, and what they want instead of the legal government. Sometimes mods succeed in taking over the whole country (Russian revolution), sometimes they fail because the government succeeds in using force to stop them. The British decision to ban the trade of slaves (William Wilberforce) was fiercely resisted by the people who made money out of the trade. Slave trade mobs attacked the homes of people known to support abolition.
Demarchy
Demarchy is a political system based on many decision-making groups that deal with specific functions in a given area (transport, parks, land use, etc.) The members that make up each group are chosen randomly every year. Democracy in Athens used this method to appoint officials.
This system is advantageous because it can not be influenced by pressure groups, media and others. In demarchy "political machines" or special preparation of candidates are not important because nobody can predict who will be in government next.
Compulsory voting
Some countries have compulsory voting, which requires citizens to register to vote and to go to their polling place or vote on election day. If the voter does not attend a polling place, they may be subject to punishment such as fines or community service.
The Mark of Athena
The Mark Of Athena is the third book of the "Heroes of Olympus" series by Rick Riordan. In this book, the perspective of the story moves between Percy Jackson, Annabeth Chase, Leo Valdez, Jason Grace, and Piper McLean. All of the seven demigods appear in this book.
In the beginning, the Argo II is approaching Rome (Camp Jupiter) when suddenly, a statue pops into existence on the ship and almost knocks Annabeth overboard. The statue is Terminus, the Roman god of boundaries. He yells that he will not accept having weapons over the Pomerian Line (the camp boundary). After being irritated by a curious Leo and a charmspeaking Piper, Terminus tells them to "surrender, then leave". Annabeth sees Percy walking down in Camp Jupiter with Hazel and Frank as if they were best friends, and knew she was too close to give up. (She also notices that Percy is a praetor now and signs that New Rome had recently been attacked by an army of monsters.) She asks if it was against the rules to hover OVER New Rome, as technically it wouldn't be on Roman soil. Terminus agrees grudgingly to this, but tells them to not harm his city.
Sarah Kane
Sarah Kane (3 February 1971 – 20 February 1999) was an English playwright. Her writings dealt with the themes of desire, pain, love, torture and death. Her five plays are "Blasted" (1995), "Phaedra's Love" (1996), "Cleansed" (1998), "Crave" (1998) and "4.48 Psychosis" (2000). In 1995, she wrote the screenplay for the short movie "Skin". She also wrote two newspaper articles for "The Guardian".
Kane was born in Brentwood, Essex. She was raised by evangelical parents. A Christian in her early life, Kane later became an atheist. She was a lesbian.
Kane was depressed for years during her life. On 20 February 1999, she killed herself at King's College Hospital in Camberwell, London, by hanging herself with her shoelaces. She was 28. She had earlier been taken to the same hospital after overdosing on prescription drugs on 17 February.
Belshazzar
Belshazzar is a king of Babylonia in the Book of Daniel. He is the son of Nebuchadnezzar and is killed by Darius the Mede.
His banquet is the subject of a painting by Rembrandt.
S. Epatha Merkerson