The Hyades (also known as Caldwell 41, Melotte 25, or Collinder 50) is the nearest open cluster and one of the best-studied star clusters.
Located about 153 light-years (47 parsecs) away from the Sun, it consists of a roughly spherical group of hundreds of stars sharing the same age, place of origin, chemical characteristics, and motion through space.
From the perspective of observers on Earth, the Hyades Cluster appears in the constellation Taurus, where its brightest stars form a "V" shape along with the still-brighter Aldebaran.
However, Aldebaran is unrelated to the Hyades, as it is located much closer to Earth and merely happens to lie along the same line of sight.
The five brightest member stars of the Hyades have consumed the hydrogen fuel at their cores and are now evolving into giant stars.
Four of these stars, with Bayer designations Gamma, Delta 1, Epsilon, and Theta Tauri, form an asterism that is traditionally identified as the head of Taurus the Bull.
The age of the Hyades is estimated to be about 625 million years.
The core of the cluster, where stars are the most densely packed, has a radius of 8.8 light-years (2.7 parsecs), and the cluster's tidal radius, is 33 light-years (10 parsecs). In Greek mythology, the Hyades were the five daughters of Atlas and half-sisters to the Pleiades.
After the death of their brother, Hyas, the weeping sisters were transformed into a cluster of stars that was afterwards associated with rain.
Surveys indicate that 90% of open clusters dissolve less than 1 billion years after formation, while only a tiny fraction survive for the present age of the Solar System (about 4.6 billion years). 201.
Astrônomos que usaram o Telescópio Espacial Hubble da NASA para pesquisar Orion, encontraram em choque um arco em torno de uma estrela muito jovem na nebulosa em uma região intensa de formação de estrelas de gás e poeira, essa imagem foi tratada em 1999🔭🎆
Créditos: NASA and the Hubble Heritage Team STScI/AURA
The Martian (2015)
Dir. by Ridley Scott
Despite being nominated for 7 academy awards (including Best Picture) and winning the Golden Globe for Best Motion Picture, ‘The Martian’ did not win any Oscars.
Has your performance ever been plagued by decreased mental acuity, fatigue, dehydration, etc.? As we approach the 24 hours of Daytona @disupdates , we’re witnessing many of the top-notch endurance athletes in the world compete under pressure. You know what they need in order to perform their best? Fuel.
Performance athletes require increased glycogen stores just as their cars require fuel. What is Glycogen?
Have you heard of carbohydrates? I’m sure you have. Carbohydrates are stored in our muscles and liver in the form of glycogen. They are our bodies main source of fuel during higher intensity exercise.
Athletes can store ~1.800 to 2,000 calories of fuel as glycogen in the muscles and liver. This can fuel about 90-120 minutes of vigorous activity! You know what else glycogen fuels? Our brain.
Carbohydrate loading isn’t a bad idea when leading up to race day. Get those glycogen stores high and ready for race day. If you’re an endurance racer, replenishing them throughout through use of gels and liquids such as Gu, Maple Syrup, Gatorade or electrolyte replacement tabs. Remember 15 grams of carbohydrates for every 15 minutes is recommended for marathon runners, so why not racers too!
Without the moon, you might not be here. Its gravitational tug creates tides (with the help of the sun), and one theory holds that life originated in tidal regions. Another suggests tides may have set up conditions for sea creatures to transition and become the first land animals
Photo by @A_Guy_Named_Eric:
“This was done in two shots with my 100-400mm lens.” Follow for more @nowspacetime🌌