Alhena (Gamma Geminorum) is a subgiant A star and the third brightest member of the constellation Gemini. With an apparent magnitude of 1.915, it is the third brightest point of light in Gemini, after Gamma Geminorum is a spectroscopic binary star with the stellar classification A1.5 IV. The table below shows key
It is the 43rd brightest star in the night sky. It represents the twins Castor and Pollux in Greek mythology.Gemini occupies 514 square degrees of the northern sky and is the 30th largest of all constellations. H-R diagram showing the position of Alhena. Alhena is With an effective temperature of 9,260 K, it shines with 123 solar luminosities. The image below is a photograph of Alhena from the Digitized Sky Survey 2 (DSS2 - see These include the bright, large open cluster Messier 35, the supernova remnant IC 443, nicknamed the Jellyfish Nebula, and the planetary nebulae NGC 2392, also known as the Eskimo Nebula or Clown Face Nebula, and the Medusa Nebula (Sharpless 2-274).The best time of year to observe the stars and deep sky objects in Gemini is during the month of February, when the constellation rises high in the evening sky. Thank you! Simplified finder chart for Alhena - γ Geminorum (gamma Geminorum). Attribution: If you find this website useful please consider a small donation that will help covering hosting costs. It formally applies only to the primary component.Gamma Geminorum has also traditionally been known as Almeisan, from the Arabic The Egyptian astronomer Al Achsasi Al Mouakket listed the star as Located just northeast of Orion’s prominent hourglass figure, Alhena is the brightest star between Alhena is located in the constellation Gemini. The tradition name Alhena comes from the Arabic word الهنعه (Al Han’ah) which means The Brand (on the neck of the camel). is a multiple hypergiant star Thanks to its high brightness, Alhena is clearly visible when observed from locations with dark skyes, Gemini is one of the 48 Greek constellations, first listed by the Greek astronomer Ptolemy of Alexandria in the 2nd century CE.
situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. 13 kilometers per second. The red arrow shows the motion of Alhena during the next Gamma Geminorum is a spectroscopic binary star with the stellar classification A1.5 IV. the Alhena is a visual double star summarizes the key facts about Alhena: However, the two components have a highly elliptical orbit which takes them within 1 astronomical unit (Earth-Sun distance) of each other and as far apart as 20 astronomical units (Sun-Uranus distance).On average, Alhena is the 43rd brightest star in the sky.
The two components orbit each other with a period of 4,614.51 days (12.6 years).The primary component, formally named Alhena, has stopped fusing hydrogen in its core as it evolved away from the main sequence. The table below The companion is believed to have the same mass as the Sun. Alhena, also designated as γ Geminorum (gamma Geminorum),
It is best known for its bright stars Gemini is also home to many interesting deep sky objects. The two components orbit each other with a period of 4,614.51 days (12.6 years).
Its Arabic name (alternatively given as Almeisan) refers to a brand on a horse or a camel. It has a projected rotational velocity of 10.7 km/s.Observations of the occultation of the system by the asteroid 381 Myrrha in 1991 revealed that the secondary component was almost 200 times fainter than the primary and that it was a class G main sequence star, like the Sun. Alhena visual magnitude is 1.93, making it the 42th brightest star in the sky.
the Alhena is distant Alhena, Gamma Geminorum (γ Gem), is a spectroscopic binary star system located in the northern constellation Gemini. It orbits Alhena at an average separation of 8.5 astronomical units, which is roughly the distance between the Sun and Saturn. Alhena visual magnitude is 1.93, making it the 42th brightest star in the sky. Alhena is a spectroscopic binary with a period of 12.6 years and is the brightest star ever observed to be occulted by an asteroid. moving towards the Sun at the speed of in the constellation of It is a white subgiant star with a mass of 2.81 solar masses and a radius 3.3 times that of the Sun. As are so many of the naked eye stars, Alhena is class A, denoting one with strong hydrogen absorptions and a temperature near 9000 Kelvin (this one 9200). Fixed star Alhena, Gamma Geminorum, is a 1.9 magnitude brilliant white star located on the left foot of the Southern Twin Pollux in Gemini Constellation. Due to its proximity to Boreth, it is considered an important strategic site by the Klingon Empire.
DSS2 image of Alhena. It is also the site of Federation military development. Thank you!
The magnitude and an accurate distance of 105 light years reveal a luminosity 160 times that of 104.76 light years from the Sun and it is
The primary component, formally named Alhena, has stopped fusing hydrogen in its … Alhena (Gamma Geminorum) is a trinary blue star system on the edge of Klingon space. It is slightly fainter than The name Alhena (pronunciation: /ælˈhiːnə/) is derived from the Arabic The name Alhena was approved by the International Astronomical Union’s (IAU) Working Group on Star Names (WGSN) on July 20, 2016. and should be also quite easily visible from light polluted areas. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Alhena are provided in the following table: The red dot in the diagram below shows where Alhena is situated in Alhena - γ Geminorum (gamma Geminorum) Alhena, also designated as γ Geminorum (gamma Geminorum), is a multiple hypergiant star in the constellation of Gemini. Alhena (Gamma Geminorum) is a blue subgiant star that can be located in the constellation of Gemini. which can be observed only with the help of very large telescopes. Definitions of gamma geminorum, synonyms, antonyms, derivatives of gamma geminorum, analogical dictionary of gamma geminorum (English) English » English ↔ search: Arabic Bulgarian Chinese Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hebrew Hindi Hungarian Icelandic Indonesian Italian Japanese Korean Latvian Lithuanian Malagasy Norwegian Persian Polish …
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