Eta Carinae
This "almost true-color" image shows material surrounding the star Eta Carinae obtained with the second-generation Wide Field and Planetary Camera installed in the Hubble Space Telescope in December 1993.
Eta Carinae (Î- Carinae or Î- Car) is a very large, very luminous star. Estimates of its mass range from 100-150 times the mass of the Sun, and its luminosity is about four million times that of the Sun.
ETA CAR (Eta Carinae). "Magnificent;" "Grandest in the Galaxy of stars"; "None like it:" so would go critical reviews were Eta Car a stage actor rather than a star. Hyperbole?
Eta Carinae is a sixth- magnitude star located between 8,000 and 10,000 light-years away in the constellation Carina (the keel) which lies in the southern hemisphere. It was first cataloged in 1677 by astronomer extraordinaire Edmund Halley.
If the star eta Carina exploded as a Gamma-Ray Burst during a Hypernova event, would it be dangerous for human beings?
The Answer
It depends where the human beings are of course! ...
Eta Carinae is associated with the Keyhole Nebula (see below) Double stars in Carina: Upsilon Carinae is easily resolved, a pleasant binary of two white stars (visual magnitudes 3.0, 6.0), 127º and separation of 5.0".
Eta Carinae
A huge, billowing pair of gas and dust clouds are captured in this stunning image of the supermassive star Eta Carinae. It is estimated to be 100 times more massive than our Sun and may be one of the most massive stars in our Galaxy.
Eta Carinae Nebula
The Carina Nebula is a large bright nebula that surrounds several open clusters of stars. Eta Carinae and HD 93129A, two of the most massive and luminous stars in our Milky Way galaxy, are among them....
Hourglass Nebula ...
Eta Carinae is the most luminous star known in the galaxy. It is 100 times as massive as the sun and over 5 million times as luminous.
The Eta Carinae emission nebula.
Emission Nebulae
Emission spectra can be observed in emission nebulae such as M42, the Great Nebula in Orion and the Eta Carinae nebula (shown at right).
This is Eta Carinae and the Keyhole Nebula. (Courtesy of the Anglo-Australian Observatory/Royal Observatory Edinburgh)
(146K GIF)
This is another image of Eta Carina. It is the largest diffuse nebula
(16K JPG) ...
INTERLUDE 19-2 Eta Carinae
At the heart of the Carina emission nebula (shown at left in the figure) lies a remarkable object called Eta Carinae (right-hand images).
An old name for Eta Carinae.
Killing vector
When it exists, the Killing vector describes symmetry properties of spacetime.
February 9 - An ETA car bomb injures 31 people at a conference centre in Madrid.
February 10 - North Korea announces that it possesses nuclear weapons as a protection against the hostility it feels from the United States.
Another interesting star is [1822] eta Carinae, a supermassive star in the Eta Carinae Nebula. Eta Carinae is also known as Foramen and Tseen She ("heaven's altar") in China.
Carina also contains Eta Carinae. A century ago, Eta Carinae abruptly brightened to an apparent magnitude of -0.8 and was, briefly, the second brightest star in the sky.
Hubble Space Telescope picture of Eta Carina - a massive, highly evolved star which is ejecting its outer atmosphere in a series of violent outbursts There are very few masses greater than five times the mass of the Sun but their evolution ends in a ...
An instrument on Hubble that had been left for dead prior to the servicing mission earlier this year has revealed some of the composition of the gas ejected by the mighty star eta Carinae during its dramatic outburst all the way back in 1843.
Stars like Eta Carinae and the ``Pistol star'' are examples of these supermassive stars. The picture of Eta Carinae below shows two dumbbell-shaped lobes of ejected material from the star in an earlier episode of mass ejection.
To the right is the unusual star Eta Carina. Actually, the star is buried in the center of the two bubbles, which are thought to be from an eruption that occurred in 1847. Follow this link to see how the bubbles formed.
[43] The existence of other stars changing in brightness gave credence to the idea that some may change in colour too; Sir John Herschel noted this in 1839, possibly influenced by witnessing Eta Carinae two years earlier.
The constellation contains a unique star, Eta Carinae, that flared up to become brighter than Canopus in 1843, but has since faded to the limit of naked-eye visibility.
The Keyhole nebula and Eta Carinae
AAT 38. NGC 3576 and NGC 3603 in Carina
UKS 6. The great nebula in Carina
UKS 41. The great nebula in Carina, narrow emission bands ...
Ia-0 (hypergiants or extremely luminous supergiants (later addition), Example: Eta Carinae (spectrum-peculiar)
Ia (luminous supergiants), Example: Deneb (spectrum is A2Ia)
Iab (intermediate luminous supergiants) ...
The largest star, Eta Carinae, is at left. The newborn stars pump vast amounts of energy into the leftover nebula, which blows away much of its remaining gas. That shuts down the process of starbirth.
Lines of [Ni II] appear in emission in one VV Cep star (Rossi et al. 1992), in the luminous blue variable eta Car (Thackeray 1953) and in the supernova 1987A (Arnett et al. 1989) Lines of [NiII] are also seen in one typical B[e] star (Swings 1973).
A: Betelgeuse, an old, red supergiant in the constellation Orion, is one of the largest in diameter; it is 500 to 750 times the size of our Sun. One of the most massive stars is Eta Carinae (a variable star); it is about 200 times the mass of our Sun.
Over 300 bright nebulae have been cataloged; prime examples are the Orion Nebula, visible to the unaided eye, the Eta Carinae Nebula, and the smaller North America Nebula.
km/h, surpass those of any other known object of its type. Though similar in appearance to another bipolar planetary, the Butterfly Nebula (M2-9), the Ant has an outflow pattern that more closely resembles that of the bizarre, unstable star Eta ...
 See also: Carina, Eta Carinae, Star, Light, Sun
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