Galaxies - Mike Brotherton
... Measuring the Mass of the Black Hole in the Center of the Milky Way By following the orbits of individual stars near the center of the Milky Way, the mass of the central black hole could be ...
... Measuring the Mass of the Black Hole in the Center of the Milky Way By following the orbits of individual stars near the center of the Milky Way, the mass of the central black hole could be ...
The Kuiper Belt
... Technology and (Caltech) Yale University announced that they may have found the largest Edgeworth-Kuiper Belt object, designated 2004 DW, since the discovery of Pluto on February 18, 1930. Based on its current distance of around 48 AUs from Sol, brightness, and presumed albedo or ability to reflect ...
... Technology and (Caltech) Yale University announced that they may have found the largest Edgeworth-Kuiper Belt object, designated 2004 DW, since the discovery of Pluto on February 18, 1930. Based on its current distance of around 48 AUs from Sol, brightness, and presumed albedo or ability to reflect ...
Dormant black holes turn into ravenous beasts when stars wake
... stellar debris. Just two months after Sw J1644’s discovery, a team led by Bradley Cenko (UC Berkeley) detected a similar event called Sw J2058. This time, observations show evidence of a flare both from the swirling stellar debris and from a relativistic jet, so astronomers will be able to study bot ...
... stellar debris. Just two months after Sw J1644’s discovery, a team led by Bradley Cenko (UC Berkeley) detected a similar event called Sw J2058. This time, observations show evidence of a flare both from the swirling stellar debris and from a relativistic jet, so astronomers will be able to study bot ...
What units are used in astronomical photometry?
... Astrometry: Technological advances (including the Hubble Space Telescope) have improved parallax accuracy to 0.001” within a few years. Before 1990, fewer than 10,000 stellar parallaxes had been measured (and only 500 known well), but there are about 10 12 stars in our Galaxy. Space observations mad ...
... Astrometry: Technological advances (including the Hubble Space Telescope) have improved parallax accuracy to 0.001” within a few years. Before 1990, fewer than 10,000 stellar parallaxes had been measured (and only 500 known well), but there are about 10 12 stars in our Galaxy. Space observations mad ...
the magellanic clouds newsletter - Keele University Astrophysics
... We present the Planck catalogue of Galactic Cold Clumps (PGCC), an all-sky catalogue of Galactic cold clump candidates detected by Planck. This catalogue is the full version of the Early Cold Core (ECC) catalogue, which was made available in 2011 with the Early Release Compact Source Catalogue (ERCS ...
... We present the Planck catalogue of Galactic Cold Clumps (PGCC), an all-sky catalogue of Galactic cold clump candidates detected by Planck. This catalogue is the full version of the Early Cold Core (ECC) catalogue, which was made available in 2011 with the Early Release Compact Source Catalogue (ERCS ...
Space exploration improves our knowledge and gives
... United States responsible for the country’s space program. The mission of this unpiloted spacecraft was to fly past Jupiter and then continue on to the outer solar system. Pioneer 10 transmitted images of Jupiter back to Earth that revealed details humans had never been able to see before. The probe ...
... United States responsible for the country’s space program. The mission of this unpiloted spacecraft was to fly past Jupiter and then continue on to the outer solar system. Pioneer 10 transmitted images of Jupiter back to Earth that revealed details humans had never been able to see before. The probe ...
Hoag`s Object
... A nearly perfect ring of young hot blue stars circles the older yellow nucleus of this ring galaxy ~600 million light-years away in the constellation Serpens. The diameter of the 6″ (seconds of arc) inner core of the galaxy is about 17±0.7 kly (5.3±0.2 kpc) while the surrounding ring has an inner 28 ...
... A nearly perfect ring of young hot blue stars circles the older yellow nucleus of this ring galaxy ~600 million light-years away in the constellation Serpens. The diameter of the 6″ (seconds of arc) inner core of the galaxy is about 17±0.7 kly (5.3±0.2 kpc) while the surrounding ring has an inner 28 ...
Document
... Formation of Planets around Stars • Planets outside our solar system are difficult to detect • Planetary searches are done indirectly ...
... Formation of Planets around Stars • Planets outside our solar system are difficult to detect • Planetary searches are done indirectly ...
The Evening Sky Map
... Conjunction – An alignment of two celestial bodies such that they present the least angular separation as viewed from Earth. Constellation – A defined area of the sky containing a star pattern. Diffuse Nebula – A cloud of gas illuminated by nearby stars. Double Star – Two stars that appear close to ...
... Conjunction – An alignment of two celestial bodies such that they present the least angular separation as viewed from Earth. Constellation – A defined area of the sky containing a star pattern. Diffuse Nebula – A cloud of gas illuminated by nearby stars. Double Star – Two stars that appear close to ...
PLANETS
... Some stunning individual systems have been reported (Marois et al. 2010, Lagrange et al. 2010), but the surveys indicate that fewer planets are found than would be predicted by extrapolating the power-law (of Eqn. (1) – see next lecture) out to 10-100 AU ...
... Some stunning individual systems have been reported (Marois et al. 2010, Lagrange et al. 2010), but the surveys indicate that fewer planets are found than would be predicted by extrapolating the power-law (of Eqn. (1) – see next lecture) out to 10-100 AU ...
The Space-Based Visible Sensor - The Johns Hopkins University
... The telescope was developed for MIT/LL by SSG, Inc., of Waltham, Massachusetts.3 It employs a threemirror anastigmat and off-axis reimaging design, as shown in Fig. 3, to maximize stray-light rejection of bright sources such as the sunlit Earth, which may be just outside the field of view (FOV). Thi ...
... The telescope was developed for MIT/LL by SSG, Inc., of Waltham, Massachusetts.3 It employs a threemirror anastigmat and off-axis reimaging design, as shown in Fig. 3, to maximize stray-light rejection of bright sources such as the sunlit Earth, which may be just outside the field of view (FOV). Thi ...
Exploring the physical properties of the first galaxies
... The James Webb Space Telescope will revolutionise the study of the early Universe allowing us to push to much higher redshift and fainter luminosities. NIRSpec will also allow us to study optical emission lines in galaxies to z~7 (making confirmation possible for many candidates) as well as identify ...
... The James Webb Space Telescope will revolutionise the study of the early Universe allowing us to push to much higher redshift and fainter luminosities. NIRSpec will also allow us to study optical emission lines in galaxies to z~7 (making confirmation possible for many candidates) as well as identify ...
nebula - Harding University
... Similar features have been recently observe with the Hubble Space Telescope. In the slide that follows, the knobby jets of material appears to be emitted along the polar axes of the star in what is called bi-polar outflow. These small nebula are known as Herbig-Haro objects. Such young, gas-ejecting ...
... Similar features have been recently observe with the Hubble Space Telescope. In the slide that follows, the knobby jets of material appears to be emitted along the polar axes of the star in what is called bi-polar outflow. These small nebula are known as Herbig-Haro objects. Such young, gas-ejecting ...
Chapter 1 Introduction
... eye, similar clouds are numerously scattered throughout the Milky Way and some of them are close enough to Earth, so that they can be studied in great detail using telescopes. Stars are known to form inside these clouds and therefore moleclar clouds have been the subject of intense study during the ...
... eye, similar clouds are numerously scattered throughout the Milky Way and some of them are close enough to Earth, so that they can be studied in great detail using telescopes. Stars are known to form inside these clouds and therefore moleclar clouds have been the subject of intense study during the ...
INSTRUCTION MANUAL Orion® SpaceProbe 130mm EQ
... Now, look in the finder scope. Is the object visible? Ideally, it will be somewhere in the finder’s field of view. If it is not, some coarse adjustments of the two black nylon finder scope alignment thumb screws will be needed to get the finder scope roughly parallel to the main tube. The finder sco ...
... Now, look in the finder scope. Is the object visible? Ideally, it will be somewhere in the finder’s field of view. If it is not, some coarse adjustments of the two black nylon finder scope alignment thumb screws will be needed to get the finder scope roughly parallel to the main tube. The finder sco ...
Small Wonders: Cygnus
... Three degrees almost directly east of Deneb, we come across one of the most photographed nebulae in the night sky. The North American Nebula is spectacular in long exposure photographs, and unlike many objects in the sky clearly resembles its namesake. Until recently tho, its been considered a chall ...
... Three degrees almost directly east of Deneb, we come across one of the most photographed nebulae in the night sky. The North American Nebula is spectacular in long exposure photographs, and unlike many objects in the sky clearly resembles its namesake. Until recently tho, its been considered a chall ...
presentation source
... •Hole grows as dust/gas within galaxy falls into it •If large enough, the Black Hole could swallow entire stars and grow very massive, maybe millions of MO •If galaxy massive enough, or through encounters with other galaxies, could grow even more massive •As galaxy ages, available mass drops and act ...
... •Hole grows as dust/gas within galaxy falls into it •If large enough, the Black Hole could swallow entire stars and grow very massive, maybe millions of MO •If galaxy massive enough, or through encounters with other galaxies, could grow even more massive •As galaxy ages, available mass drops and act ...
Speckle Imaging through the Atmosphere
... the angular separation. orientation (with redundancy of 180°), and magnitude difference between the star pair. With more complicated objects. such as satellites, speckle interferometry is not appropriate, and considerable effort has gone into finding methods to obtain phase information for the optic ...
... the angular separation. orientation (with redundancy of 180°), and magnitude difference between the star pair. With more complicated objects. such as satellites, speckle interferometry is not appropriate, and considerable effort has gone into finding methods to obtain phase information for the optic ...
lec-galatic-observat..
... 1. To assess our Milky Way Galaxy from our location within it. 2. To use the knowledge (of only this century) that our Galaxy’s properties may be anticipated from, and compared with, properties of galaxies outside our own. 3. A final visual appreciation of our Galaxy before we rely on Observatory im ...
... 1. To assess our Milky Way Galaxy from our location within it. 2. To use the knowledge (of only this century) that our Galaxy’s properties may be anticipated from, and compared with, properties of galaxies outside our own. 3. A final visual appreciation of our Galaxy before we rely on Observatory im ...
next generation optical spectrograph for noao
... by significantly increasing the number of targets that could be realistically observed for a given astronomical study from a few to a few hundred. This increased the validity of the results by an order of magnitude, moving the science out of the regime of small number statistics. Technological advan ...
... by significantly increasing the number of targets that could be realistically observed for a given astronomical study from a few to a few hundred. This increased the validity of the results by an order of magnitude, moving the science out of the regime of small number statistics. Technological advan ...
Spitzer Space Telescope
The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003. It is the fourth and final of the NASA Great Observatories program.The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted. This occurred on 15 May 2009. Without liquid helium to cool the telescope to the very low temperatures needed to operate, most of the instruments are no longer usable. However, the two shortest-wavelength modules of the IRAC camera are still operable with the same sensitivity as before the cryogen was exhausted, and will continue to be used in the Spitzer Warm Mission. All Spitzer data, from both the primary and warm phases, are archived at the Infrared Science Archive (IRSA).In keeping with NASA tradition, the telescope was renamed after its successful demonstration of operation, on 18 December 2003. Unlike most telescopes that are named after famous deceased astronomers by a board of scientists, the new name for SIRTF was obtained from a contest open to the general public.The contest led to the telescope being named in honor of astronomer Lyman Spitzer, who had promoted the concept of space telescopes in the 1940s. Spitzer wrote a 1946 report for RAND Corporation describing the advantages of an extraterrestrial observatory and how it could be realized with available or upcoming technology. He has been cited for his pioneering contributions to rocketry and astronomy, as well as ""his vision and leadership in articulating the advantages and benefits to be realized from the Space Telescope Program.""The US$800 million Spitzer was launched from Cape Canaveral Air Force Station, on a Delta II 7920H ELV rocket, Monday, 25 August 2003 at 13:35:39 UTC-5 (EDT).It follows a heliocentric instead of geocentric orbit, trailing and drifting away from Earth's orbit at approximately 0.1 astronomical unit per year (a so-called ""earth-trailing"" orbit). The primary mirror is 85 centimeters (33 in) in diameter, f/12, made of beryllium and is cooled to 5.5 K (−449.77 °F). The satellite contains three instruments that allow it to perform astronomical imaging and photometry from 3 to 180 micrometers, spectroscopy from 5 to 40 micrometers, and spectrophotometry from 5 to 100 micrometers.