MESSIER - EarthLink
... After me, the celebrated Herschel published a catalog of 2000 which he has observed. This unveiling the heavens, made with instruments of great aperture, does not help in the perusal of the sky for faint comets. Thus my object is different from his, and I need only nebulae visible in a telescope of ...
... After me, the celebrated Herschel published a catalog of 2000 which he has observed. This unveiling the heavens, made with instruments of great aperture, does not help in the perusal of the sky for faint comets. Thus my object is different from his, and I need only nebulae visible in a telescope of ...
Protostellar/PMS Mass Infall Luminosity Problem
... Dunham et al. (2013) extended the c2D sample from 112 to 230 protostars, but 100 of the new sources lacks sub-mm detections, so their totoal luminosity is underestimated by a factor of 2.6 on average (could be up to 10). The low luminosity tail of the PLF is very uncertain ...
... Dunham et al. (2013) extended the c2D sample from 112 to 230 protostars, but 100 of the new sources lacks sub-mm detections, so their totoal luminosity is underestimated by a factor of 2.6 on average (could be up to 10). The low luminosity tail of the PLF is very uncertain ...
PPT presentation
... • Many extended sources, presumably star formation regions at low redshift. Those pose no confusion problem because of their extended nature. • Two point sources bright in the on-band and fainter but visible in the offband. Could be high-z quasars or star forming regions or even a PN within a globul ...
... • Many extended sources, presumably star formation regions at low redshift. Those pose no confusion problem because of their extended nature. • Two point sources bright in the on-band and fainter but visible in the offband. Could be high-z quasars or star forming regions or even a PN within a globul ...
Cepheid
... It would look much fainter than the ones she has been observing in the nearby LMC. This tells us the relative distance. [For example, if it looks 100x fainter, it must be 10x as far away, by the inversesquare law.] ...
... It would look much fainter than the ones she has been observing in the nearby LMC. This tells us the relative distance. [For example, if it looks 100x fainter, it must be 10x as far away, by the inversesquare law.] ...
Asteroids, Comets & Meteors Teacher's Guide
... 23. Most scientists believe the asteroids were once a planet that was destroyed. (F – the fact that stony-iron asteroids are congregated mainly along the inside half of the asteroid belt (Mars side) and carbon asteroids are congregated mainly along the outside half of the asteroid belt (Jupiter side ...
... 23. Most scientists believe the asteroids were once a planet that was destroyed. (F – the fact that stony-iron asteroids are congregated mainly along the inside half of the asteroid belt (Mars side) and carbon asteroids are congregated mainly along the outside half of the asteroid belt (Jupiter side ...
Sample pages 1 PDF
... M110 is a bit farther out, about 36 arcminutes from the core of the Andromeda Galaxy. It is a reasonably bright elliptical blob, and while still classified as a dwarf elliptical galaxy, it’s about twice the size of M32. Both M110 and M32 can be mistaken for each other. What else is there to see in t ...
... M110 is a bit farther out, about 36 arcminutes from the core of the Andromeda Galaxy. It is a reasonably bright elliptical blob, and while still classified as a dwarf elliptical galaxy, it’s about twice the size of M32. Both M110 and M32 can be mistaken for each other. What else is there to see in t ...
Polaris
... The North Star or Pole Star – aka Polaris – is famous for holding nearly still in our sky while the entire northern sky moves around it. That’s because it’s located nearly at the north celestial pole, the point around which the entire northern sky turns. Polaris marks the way due north. As you face ...
... The North Star or Pole Star – aka Polaris – is famous for holding nearly still in our sky while the entire northern sky moves around it. That’s because it’s located nearly at the north celestial pole, the point around which the entire northern sky turns. Polaris marks the way due north. As you face ...
SRMP Stars Curriculum - American Museum of Natural History
... For this activity, the brighter the light, the better. Hand out one diffraction grating per student. Explain that these act like prisms and break up light into its constituent parts. Turn the dimmable light on low, and turn off the classroom lights. Ask students to view the light through the diffrac ...
... For this activity, the brighter the light, the better. Hand out one diffraction grating per student. Explain that these act like prisms and break up light into its constituent parts. Turn the dimmable light on low, and turn off the classroom lights. Ask students to view the light through the diffrac ...
Galaxies - cloudfront.net
... billions of stars. Galaxies are divided into three types according to shape: spiral, elliptical, and irregular galaxies. • Spiral galaxies spin and appear as a rotating disk of stars and dust, with a bulge in the middle. Several spiral arms reach outward from the central bulge like the arms of a pin ...
... billions of stars. Galaxies are divided into three types according to shape: spiral, elliptical, and irregular galaxies. • Spiral galaxies spin and appear as a rotating disk of stars and dust, with a bulge in the middle. Several spiral arms reach outward from the central bulge like the arms of a pin ...
Common Envelope Evolution Leading to Supernovae with Dense
... a red supergiant companion, this is . 100 km s−1 which is low for a Type IIn circumstellar medium, but this evolution channel is expected to lead to a He star/compact object binary and not directly to a supernova. The lifetime of the He star is . 105 yr, so that the radius of the H envelope at the t ...
... a red supergiant companion, this is . 100 km s−1 which is low for a Type IIn circumstellar medium, but this evolution channel is expected to lead to a He star/compact object binary and not directly to a supernova. The lifetime of the He star is . 105 yr, so that the radius of the H envelope at the t ...
September - Rose City Astronomers
... home, and I’ve had a blast with it. The little scope is so portable that it requires almost no thought for setting it up – it stays assembled to its mount – so all I have to do is find a chair and a decent place to plunk it down. ...
... home, and I’ve had a blast with it. The little scope is so portable that it requires almost no thought for setting it up – it stays assembled to its mount – so all I have to do is find a chair and a decent place to plunk it down. ...
PowerPoint
... What else does our consensus tell us? • Well, we can guess that there might be some relationship between temperature and luminosity. • Also, as a star evolves from birth to death, the star will change its temperature (hotter or cooler) and ...
... What else does our consensus tell us? • Well, we can guess that there might be some relationship between temperature and luminosity. • Also, as a star evolves from birth to death, the star will change its temperature (hotter or cooler) and ...
Thu th surf c
... The velocity curve shows the radial velocity changes due to pulsation alone, and since the star itself is moving toward the sun with a velocity of - 10 miles per second, its radial velocity relative to the sun is also given. ...
... The velocity curve shows the radial velocity changes due to pulsation alone, and since the star itself is moving toward the sun with a velocity of - 10 miles per second, its radial velocity relative to the sun is also given. ...
Meteor Shower Observations
... simply white, but some meteors exhibit color. A few are orange or yellow. Others appear red, green, or blue. A great many do, in fact appear as simply white. The colors are due in part to the composition of the meteor, but also due to the speed at which they enter the atmosphere. In addition to colo ...
... simply white, but some meteors exhibit color. A few are orange or yellow. Others appear red, green, or blue. A great many do, in fact appear as simply white. The colors are due in part to the composition of the meteor, but also due to the speed at which they enter the atmosphere. In addition to colo ...
Table of Contents - Shawnee State University
... The constellation, Canis Minor; another dog that is not so lucky: - The little dog is indeed ‘little’, only two stars. - The brighter one of these is Procyon. - It can be found by following an imaginary line through Orion’s shoulders and approximately straight up from Sirius. ...
... The constellation, Canis Minor; another dog that is not so lucky: - The little dog is indeed ‘little’, only two stars. - The brighter one of these is Procyon. - It can be found by following an imaginary line through Orion’s shoulders and approximately straight up from Sirius. ...
Chromospherically young, kinematically old stars
... attention to them, but interpret them as possible runaway stars. Rocha-Pinto et al. (2002) have increased the number of active stars with spatial velocities to 145. Several of these stars, show velocities which are inconsistent with their presumed age. The term CYKOS (acronym for chromospherically y ...
... attention to them, but interpret them as possible runaway stars. Rocha-Pinto et al. (2002) have increased the number of active stars with spatial velocities to 145. Several of these stars, show velocities which are inconsistent with their presumed age. The term CYKOS (acronym for chromospherically y ...
Astronomy Astrophysics NGC 7419 as a template for red supergiant clusters &
... NGC 7419 using ALFOSC on the Nordic Optical Telescope at the Roque de los Muchachos Observatory (La Palma, Spain) on the night of October 3, 2005. ALFOSC allows observations in different modes. In imaging mode the camera covers a field of 6. 5 × 6. 5 and has a pixel scale of 0. 19/pixel. For each ...
... NGC 7419 using ALFOSC on the Nordic Optical Telescope at the Roque de los Muchachos Observatory (La Palma, Spain) on the night of October 3, 2005. ALFOSC allows observations in different modes. In imaging mode the camera covers a field of 6. 5 × 6. 5 and has a pixel scale of 0. 19/pixel. For each ...
CELESTIAL MANUAL:CELESTIAL MANUAL
... the point on the dials right ascension scale opposite 11.40 is in line with the point on the date scale corresponding to June 11. ...
... the point on the dials right ascension scale opposite 11.40 is in line with the point on the date scale corresponding to June 11. ...
The Pleiades in the Salle des Taureaux", Grotte de Lascaux
... the oldest traditions, for example from the nomenclature in the Almanac of Fig. 4 The copperplate engraving VII from Bode, 1805. The figure of the Klaudios Ptolemaios2 (ERREN, 1967: constellation looks like the rock picture of the aurochs no. 18 in the "Salle des 320; KUNITZSCH, 1974: 268-269, 271); ...
... the oldest traditions, for example from the nomenclature in the Almanac of Fig. 4 The copperplate engraving VII from Bode, 1805. The figure of the Klaudios Ptolemaios2 (ERREN, 1967: constellation looks like the rock picture of the aurochs no. 18 in the "Salle des 320; KUNITZSCH, 1974: 268-269, 271); ...
Bluffer`s Guide to Sirius
... is about 5500°C). Bizarrely, some historical accounts report Sirius as being red, and it is extremely hard to explain how this could have been. Any recent stellar transformation this complete and would have been so drastic it would have left some trace we could observe today. We have to assume that ...
... is about 5500°C). Bizarrely, some historical accounts report Sirius as being red, and it is extremely hard to explain how this could have been. Any recent stellar transformation this complete and would have been so drastic it would have left some trace we could observe today. We have to assume that ...
Astronomy 10 Measuring Stars
... sun, and Sirius B is a little less than the mass of the sun. Sirius A turns out to be more massive, larger, hotter, and brighter than the sun. Sirius B, however, is about the same mass, much smaller, much hotter, and much less bright than the sun. This little star contains about as much mass as the ...
... sun, and Sirius B is a little less than the mass of the sun. Sirius A turns out to be more massive, larger, hotter, and brighter than the sun. Sirius B, however, is about the same mass, much smaller, much hotter, and much less bright than the sun. This little star contains about as much mass as the ...
Long-term monitoring of the short period SU UMa
... Key words: accretion, accretion disks — stars: dwarf novae — stars: individual (V844 Herculis) — stars: novae, cataclysmic variables — stars: oscillations ...
... Key words: accretion, accretion disks — stars: dwarf novae — stars: individual (V844 Herculis) — stars: novae, cataclysmic variables — stars: oscillations ...
The 2006 RBSE Journal - National Optical Astronomy Observatory
... Significant variation was detected; and there were a couple of microvariability events in the graph. The time scale if the change is such that something exceptionally small must have interfered with the flux to cause it. With changes happening over the course of just a few minutes could be caused by ...
... Significant variation was detected; and there were a couple of microvariability events in the graph. The time scale if the change is such that something exceptionally small must have interfered with the flux to cause it. With changes happening over the course of just a few minutes could be caused by ...
the article as PDF - Project VS
... VV Cephei eclipsing binary systems offer the most detailed method of studying mass loss from cool supergiant stars. The long-period of VV Cephei gives it a unique place among eclipsing binaries, but 20.4 years between eclipses make it really hard for scientists to study the system. Such a long inter ...
... VV Cephei eclipsing binary systems offer the most detailed method of studying mass loss from cool supergiant stars. The long-period of VV Cephei gives it a unique place among eclipsing binaries, but 20.4 years between eclipses make it really hard for scientists to study the system. Such a long inter ...
Boötes
Boötes /boʊˈoʊtiːz/ is a constellation in the northern sky, located between 0° and +60° declination, and 13 and 16 hours of right ascension on the celestial sphere. The name comes from the Greek Βοώτης, Boōtēs, meaning herdsman or plowman (literally, ox-driver; from βοῦς bous “cow”). The ""ö"" in the name is a diaeresis, not an umlaut, meaning that each 'o' is to be pronounced separately.One of the 48 constellations described by the 2nd century astronomer Ptolemy, Boötes is now one of the 88 modern constellations. It contains the fourth brightest star in the night sky, the orange-hued Arcturus. Boötes is home to many other bright stars, including eight above the fourth magnitude and an additional 21 above the fifth magnitude, making a total of 29 stars easily visible to the naked eye.