Big Bear Valley Astronomical Society
... over the Bull, which was then placed in the heavens, but for his sacrilege the gods declared that the life of his best friend, Enkidu, should be taken as a forfeit. The chief star, Aldebaran is the 1st magnitude star referred to by Ptolemy as 'the Torch' on account of its bright, rose-colored lumin ...
... over the Bull, which was then placed in the heavens, but for his sacrilege the gods declared that the life of his best friend, Enkidu, should be taken as a forfeit. The chief star, Aldebaran is the 1st magnitude star referred to by Ptolemy as 'the Torch' on account of its bright, rose-colored lumin ...
The Kepler spacecraft has found thousands of likely extrasolar
... habitable zone. In our solar system, Earth sits within this orbit, while Venus doesn’t. (Mars actually does too, which is a major reason why scientists continue to study it with hopes of finding signs of past life. They have confirmed that the Red Planet once had flowing water.) A smaller and cooler ...
... habitable zone. In our solar system, Earth sits within this orbit, while Venus doesn’t. (Mars actually does too, which is a major reason why scientists continue to study it with hopes of finding signs of past life. They have confirmed that the Red Planet once had flowing water.) A smaller and cooler ...
1 pracovni list HR diagram I EN
... Note: You can find the needed values in the catalogues of stars. Calculate values marked by an asterisk using the formulas provided in exercise 3. What types of stars did you find? What are the characteristic features of each type? ...
... Note: You can find the needed values in the catalogues of stars. Calculate values marked by an asterisk using the formulas provided in exercise 3. What types of stars did you find? What are the characteristic features of each type? ...
The First Star at Night
... Currently, and unsurprisingly, it is Sirius, the brightest star in the night sky. Sirius is also known as Alpha Canis Majoris, being the brightest star in the constellation of Canis Major, The Great Dog. As the twilight begins in early February, Sirius becomes visible high in the north eastern sky, ...
... Currently, and unsurprisingly, it is Sirius, the brightest star in the night sky. Sirius is also known as Alpha Canis Majoris, being the brightest star in the constellation of Canis Major, The Great Dog. As the twilight begins in early February, Sirius becomes visible high in the north eastern sky, ...
Untitled - IES Bachiller Sabuco
... cube does in a glass of water. Saturn has 18 known moons (more than any other planet). There may very well be several small ones yet to be discovered (the distance to Saturn it’s very long, and the small moons are very difficult to discover). Like Jupiter, Saturn has bands. The bands of Saturn it’s ...
... cube does in a glass of water. Saturn has 18 known moons (more than any other planet). There may very well be several small ones yet to be discovered (the distance to Saturn it’s very long, and the small moons are very difficult to discover). Like Jupiter, Saturn has bands. The bands of Saturn it’s ...
SAMPLE THIRD MIDTERM
... 48. Now that you know the luminosity of this star, how do you use this information to find its distance? a) compare the luminosity with the color of the star b) ignore the luminosity and find the mass of the star c) compare the luminosity with the apparent brightness of the star ...
... 48. Now that you know the luminosity of this star, how do you use this information to find its distance? a) compare the luminosity with the color of the star b) ignore the luminosity and find the mass of the star c) compare the luminosity with the apparent brightness of the star ...
5th
... Orionids Meteor Shower. The Orionids is an average shower producing about 20 meteors per hour at their peak. The shower will peak on the 21st, but some meteors can be seen from October 15 - 29. This is a great year for the Orionids. The new moon means the darkest possible sky. Those in dark location ...
... Orionids Meteor Shower. The Orionids is an average shower producing about 20 meteors per hour at their peak. The shower will peak on the 21st, but some meteors can be seen from October 15 - 29. This is a great year for the Orionids. The new moon means the darkest possible sky. Those in dark location ...
View the presentation slides
... Fortunately, optical techniques are capable of exquisite accuracy. Let’s look at some data. This is a “Jupiter” (M ~ 0.96 MJ) orbiting a “Sol” (M = 0.88 MS). The orbital period is 9 years (Jupiter’s is 12), because the orbit is a bit smaller (4.2 AU instead of 5.2). This is how astronomers 60 light- ...
... Fortunately, optical techniques are capable of exquisite accuracy. Let’s look at some data. This is a “Jupiter” (M ~ 0.96 MJ) orbiting a “Sol” (M = 0.88 MS). The orbital period is 9 years (Jupiter’s is 12), because the orbit is a bit smaller (4.2 AU instead of 5.2). This is how astronomers 60 light- ...
Synthetic color-magnitude diagrams: the ingredients
... assume an instantaneous burst of star formation. Then the SFR function is represented by a Dirac delta function; In a CSP such as a galaxy, star formation takes place over a finite period of time; so it can be a complex function of the time… On generic ground, one can expect that the star-formation ...
... assume an instantaneous burst of star formation. Then the SFR function is represented by a Dirac delta function; In a CSP such as a galaxy, star formation takes place over a finite period of time; so it can be a complex function of the time… On generic ground, one can expect that the star-formation ...
Stars: Their Life and Afterlife
... will reach temperatures of 2000 – 3000 K. Since it is still much larger than the final star, its surface can radiate an immense amount of energy, and the protostar’s luminosity can be 100 times the Sun’s! Yet the protostar is still hidden within the dense nebula out of which it is forming, and canno ...
... will reach temperatures of 2000 – 3000 K. Since it is still much larger than the final star, its surface can radiate an immense amount of energy, and the protostar’s luminosity can be 100 times the Sun’s! Yet the protostar is still hidden within the dense nebula out of which it is forming, and canno ...
Astronomy and Space Science
... • Motion planets around epicycle centers and epicycle centers around the Earth are uniform circular motions. • Note: the centers of epicycles for Mercury and Venus always align with the Sun, which explains their maximum elongations (29° and 48°). • Ptolemy (90-168 CE) modified this model to be quant ...
... • Motion planets around epicycle centers and epicycle centers around the Earth are uniform circular motions. • Note: the centers of epicycles for Mercury and Venus always align with the Sun, which explains their maximum elongations (29° and 48°). • Ptolemy (90-168 CE) modified this model to be quant ...
Questions about the Sun:
... oddly sequenced because they were assigned long ago before we understood their relationship to temperature. O and B stars are rare but very bright; M stars are numerous but dim. The Sun is designated as a ____ star. A). G2 B). K1 C). M1 ...
... oddly sequenced because they were assigned long ago before we understood their relationship to temperature. O and B stars are rare but very bright; M stars are numerous but dim. The Sun is designated as a ____ star. A). G2 B). K1 C). M1 ...
20 pm - Starmap
... Many deep sky objects like galaxies and clusters will be within reach. Jupiter satellites and Saturn’s rings will also be visible. A spectacular experience for beginners in astronomy... ...
... Many deep sky objects like galaxies and clusters will be within reach. Jupiter satellites and Saturn’s rings will also be visible. A spectacular experience for beginners in astronomy... ...
Birth of Stars
... Each second in the Sun, about 600 million tons of hydrogen undergo fusion into helium, with about 4 million tons turning to energy in the process This rate of hydrogen use implies that eventually the Sun (and all other stars) will run out of central fuel ...
... Each second in the Sun, about 600 million tons of hydrogen undergo fusion into helium, with about 4 million tons turning to energy in the process This rate of hydrogen use implies that eventually the Sun (and all other stars) will run out of central fuel ...
Stars
... The final ingredient in determining the structure of a main sequence star is the source of heat in the interior: nuclear reactions. There are many of these events, but there is still some uncertainty about the exact rate of reactions. This is because the fundamental particles produced by nuclear rea ...
... The final ingredient in determining the structure of a main sequence star is the source of heat in the interior: nuclear reactions. There are many of these events, but there is still some uncertainty about the exact rate of reactions. This is because the fundamental particles produced by nuclear rea ...
End of the line for a star like ours
... With regard to star mass, the smallest star is about 0.08 solar mass, while the The Cat’s Eye Hubble Remix upper limit for a star is estimated to be the Sun to contract, but not back to its previous size. This around 150 solar masses. Regardless of size, stars will continues steadily during the main ...
... With regard to star mass, the smallest star is about 0.08 solar mass, while the The Cat’s Eye Hubble Remix upper limit for a star is estimated to be the Sun to contract, but not back to its previous size. This around 150 solar masses. Regardless of size, stars will continues steadily during the main ...
Perseids meteor showers are looking good
... The meteor shower that could be great this year should be visible in August. It is called the Perseids meteor showers since the meteors seem to radiate from the constellation, Perseus. We see meteor showers when the orbit of the Earth around the Sun travels through the debris trail of a comet. The E ...
... The meteor shower that could be great this year should be visible in August. It is called the Perseids meteor showers since the meteors seem to radiate from the constellation, Perseus. We see meteor showers when the orbit of the Earth around the Sun travels through the debris trail of a comet. The E ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.