Autumn Asterisms for binoculars 2013
... constellations, but the Cascade is one of its showpiece objects, with the open cluster NGC 1502 to its end. It is an easy object in binoculars and a favourite of mine. You can find it by taking a line from Capella in ...
... constellations, but the Cascade is one of its showpiece objects, with the open cluster NGC 1502 to its end. It is an easy object in binoculars and a favourite of mine. You can find it by taking a line from Capella in ...
Exoplanet
... Instuments detect this periodic dip in brightness. Period and depth of the transits, orbit and size of the planets can be calculated. ...
... Instuments detect this periodic dip in brightness. Period and depth of the transits, orbit and size of the planets can be calculated. ...
Stellar Evolution of Single Stars
... The HB is like a He main sequence, but its not exactly that due to the extra luminosity from the H burning shell. How much mass is lost up to this point??? From now on the calculations get more uncertain due to this and other factors. The position of a star on the HB depends on the composition (“bra ...
... The HB is like a He main sequence, but its not exactly that due to the extra luminosity from the H burning shell. How much mass is lost up to this point??? From now on the calculations get more uncertain due to this and other factors. The position of a star on the HB depends on the composition (“bra ...
Cosmic Distance Ladder
... determined, the distances of all planets can be found from Kepler’s third law. • Actually not a law, an emprical relation that has to be explained by the underlying physics. ...
... determined, the distances of all planets can be found from Kepler’s third law. • Actually not a law, an emprical relation that has to be explained by the underlying physics. ...
The Big Dipper Constellation
... resembled. Many of the names are associated with Greek myths. There are now more than 80 constellations that can be seen form the Northern and Southern Hemispheres. The Big Dipper One of the most recognized groups of stars is the Big Dipper. It has also been called the plow and a wagon or cart. It i ...
... resembled. Many of the names are associated with Greek myths. There are now more than 80 constellations that can be seen form the Northern and Southern Hemispheres. The Big Dipper One of the most recognized groups of stars is the Big Dipper. It has also been called the plow and a wagon or cart. It i ...
Part 2 - MGNet
... Microquasars • Accreting binary systems which produce jets in addition to x-ray emmisions • These jets are highly collimated outflows • Accreting object is either black hole or neutron star never white dwarf • Most well studied microquasar is SS433 ...
... Microquasars • Accreting binary systems which produce jets in addition to x-ray emmisions • These jets are highly collimated outflows • Accreting object is either black hole or neutron star never white dwarf • Most well studied microquasar is SS433 ...
Order of Magnitude Icebreaker
... ★ Use your physical intuition, not google! ★ Remember: Multiple approaches possible! ...
... ★ Use your physical intuition, not google! ★ Remember: Multiple approaches possible! ...
Stellar Evolution – Life of a Star
... temperature and energy needed to ignite He fusion is greater than H. Thus, the energy released by He fusion in the core is greater than needed to support the weight of the outer layer. The excess energy expands the outer layers beyond its previous radius and star’s volume and mass increases. This ex ...
... temperature and energy needed to ignite He fusion is greater than H. Thus, the energy released by He fusion in the core is greater than needed to support the weight of the outer layer. The excess energy expands the outer layers beyond its previous radius and star’s volume and mass increases. This ex ...
Stellar Distances - Red Hook Central School District
... Beyond 10 Mpc, it’s hard to distinguish a bright far star from a dimmer closer star. A “standard candle” is a star of known L in a cluster. We can then compare it with other stars in the same galaxy or cluster to determine the luminosity of other stars. ...
... Beyond 10 Mpc, it’s hard to distinguish a bright far star from a dimmer closer star. A “standard candle” is a star of known L in a cluster. We can then compare it with other stars in the same galaxy or cluster to determine the luminosity of other stars. ...
18 are exactly the same ones as for galactic star clusters of early
... very much older generation of stars. This observation seems to support Herbig's (1962) proposal of a spread in ages within one cluster. It is planned to extend work on NGC 6067 and also to study a neighbouring field in the Norma Cloud. IC 2944 (originally a nebula discovered near A Cen) has come to ...
... very much older generation of stars. This observation seems to support Herbig's (1962) proposal of a spread in ages within one cluster. It is planned to extend work on NGC 6067 and also to study a neighbouring field in the Norma Cloud. IC 2944 (originally a nebula discovered near A Cen) has come to ...
The Galaxy Presentation 2011
... - Within 33 l.y. (10 pc) are over 300 stars - Most are dim, red type M - A few (Sirius, Vega, Altair, Fomalhaut) are bright, white stars younger than Sun - No very massive, short-lived stars (type O or B) - We are in a quiet “suburb,” but it was not always that way. - Hot X-Ray emitting gas coming f ...
... - Within 33 l.y. (10 pc) are over 300 stars - Most are dim, red type M - A few (Sirius, Vega, Altair, Fomalhaut) are bright, white stars younger than Sun - No very massive, short-lived stars (type O or B) - We are in a quiet “suburb,” but it was not always that way. - Hot X-Ray emitting gas coming f ...
Open Houses at the Campus Observatory Astronomical Horizons Lecture
... Pressure in a degenerate gas • What is pressure? • Think of gas particles in a balloon as baseballs in the balloon. • Baseballs move and hit walls of balloon • Baseballs push on the balloon ...
... Pressure in a degenerate gas • What is pressure? • Think of gas particles in a balloon as baseballs in the balloon. • Baseballs move and hit walls of balloon • Baseballs push on the balloon ...
Stellar Explosions
... mass of the star Nothing stopping the star from collapsing further; it does so very rapidly, in a giant ...
... mass of the star Nothing stopping the star from collapsing further; it does so very rapidly, in a giant ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.