A Search for Optical Signatures of Gamma
... Gamma-ray Burst Mystery Solved. In: CRCSS Space Industry News, No.94, 2002 (Editorial Review) Hessman F. V. Links to the Robotic Telescopes Projects (List of ASTRAL’s prototipes) ...
... Gamma-ray Burst Mystery Solved. In: CRCSS Space Industry News, No.94, 2002 (Editorial Review) Hessman F. V. Links to the Robotic Telescopes Projects (List of ASTRAL’s prototipes) ...
DSLR Photometry
... comparison stars. Normally lambda Aurigae is used, but it’s 5 degrees away. The further apart the . program and comparison stars are the more important extinction considerations. ...
... comparison stars. Normally lambda Aurigae is used, but it’s 5 degrees away. The further apart the . program and comparison stars are the more important extinction considerations. ...
AGN jets
... Several sources have been detected in the TeV range by ground-based gamma-ray telescopes. All of them, except M87, are BL Lacs at z<0.2 (more precisely, to high-frequency-peaked BL Lac – HBL). ...
... Several sources have been detected in the TeV range by ground-based gamma-ray telescopes. All of them, except M87, are BL Lacs at z<0.2 (more precisely, to high-frequency-peaked BL Lac – HBL). ...
Document
... Several sources have been detected in the TeV range by ground-based gamma-ray telescopes. All of them, except M87, are BL Lacs at z<0.2 (more precisely, to high-frequency-peaked BL Lac – HBL). ...
... Several sources have been detected in the TeV range by ground-based gamma-ray telescopes. All of them, except M87, are BL Lacs at z<0.2 (more precisely, to high-frequency-peaked BL Lac – HBL). ...
The Galactic Center with Gemini
... Near-IR Test Camera (ABU) K-band image of GGD27 star-forming region (20s exp) ...
... Near-IR Test Camera (ABU) K-band image of GGD27 star-forming region (20s exp) ...
Section 7 The Electromagnetic Spectrum
... peering out into the universe, collecting the X-ray emissions of extremely high-temperature events in space. Many high-temperature objects and events in the universe also emit ultraviolet light. Much like X-rays, this radiation does not reach Earth’s surface. It is absorbed by the ozone layer in the ...
... peering out into the universe, collecting the X-ray emissions of extremely high-temperature events in space. Many high-temperature objects and events in the universe also emit ultraviolet light. Much like X-rays, this radiation does not reach Earth’s surface. It is absorbed by the ozone layer in the ...
A billion pixels, a billion stars
... attempted, gathering data on 100 000 stars every hour. With the mission’s first major data release due this month, Gerry Gilmore and Floor van Leeuwen explain how the spacecraft works and assess its likely impact on the field of astrophysics We all know that space is big. Exactly how big, though, is ...
... attempted, gathering data on 100 000 stars every hour. With the mission’s first major data release due this month, Gerry Gilmore and Floor van Leeuwen explain how the spacecraft works and assess its likely impact on the field of astrophysics We all know that space is big. Exactly how big, though, is ...
ppt
... The 2009-2010 orbital motions of the four planets are shown in the larger plot. A square symbol denotes the first 2009 epoch. The upper-right small panel shows a zoomed version of e's astrometry including the expected motion (curved line) if it is an unrelated background object. Planet e is confirm ...
... The 2009-2010 orbital motions of the four planets are shown in the larger plot. A square symbol denotes the first 2009 epoch. The upper-right small panel shows a zoomed version of e's astrometry including the expected motion (curved line) if it is an unrelated background object. Planet e is confirm ...
SGL 9 NGC Galaxy magnitude 9/10 observing challenge Up for
... It is Friday the 4th April. It is 9.30pm and its dark and the sky is clear. Time to start. Due South, almost overhead is Lynx. Use the TAKI charts and detailed CDC charts attached to find the objects. Object 1 – NGC 2683 (Taki page 53) A lovely edge of spiral galaxy some 30 million light years away. ...
... It is Friday the 4th April. It is 9.30pm and its dark and the sky is clear. Time to start. Due South, almost overhead is Lynx. Use the TAKI charts and detailed CDC charts attached to find the objects. Object 1 – NGC 2683 (Taki page 53) A lovely edge of spiral galaxy some 30 million light years away. ...
AST1100 Lecture Notes
... where d is the physical length of an object, r is the distance to the object and θ is the apparent angular extension (length) of the object. We can often measure the angular extension of an observed object. All that we need in order to find the distance is the physical length d. There are some objec ...
... where d is the physical length of an object, r is the distance to the object and θ is the apparent angular extension (length) of the object. We can often measure the angular extension of an observed object. All that we need in order to find the distance is the physical length d. There are some objec ...
SARA Beginner Booklet - Society of Amateur Radio Astronomers
... data collections. Each image take hours, days, or even years! (One full sky image of an amateur’s back yard sky could take years!). A big advantage of professional radio astronomy imaging is angular resolution (the ability to separate two different objects). Professional radio telescopes (the VLBI – ...
... data collections. Each image take hours, days, or even years! (One full sky image of an amateur’s back yard sky could take years!). A big advantage of professional radio astronomy imaging is angular resolution (the ability to separate two different objects). Professional radio telescopes (the VLBI – ...
Chapter 1 - Pearson Education
... produced in stars that shined long ago. These elements formed Earth through the recycling role played by our galaxy. As we'll discuss shortly, telescopic observations of distant galaxies show that the entire universe is expanding. That is, average distances between galaxies are increasing with time. ...
... produced in stars that shined long ago. These elements formed Earth through the recycling role played by our galaxy. As we'll discuss shortly, telescopic observations of distant galaxies show that the entire universe is expanding. That is, average distances between galaxies are increasing with time. ...
The Science of Astronomy - Ohio Wesleyan University
... – The equator is an example of a great circle: a circle that divides a sphere into 2 equal parts (northern and southern hemisphere in this case) – For historical reasons, the exact location of the origin on the equator is due south of the former location of the Royal Observatory in Greenwich, Englan ...
... – The equator is an example of a great circle: a circle that divides a sphere into 2 equal parts (northern and southern hemisphere in this case) – For historical reasons, the exact location of the origin on the equator is due south of the former location of the Royal Observatory in Greenwich, Englan ...
The HIRES science case
... In general planets were thought to be mostly on orbits coplanar with their star's equator, something in line with predictions of disc migration. Recent results have shown that hot Jupiter planets on non-coplanar orbits are common, including some planets on retrograde orbits (Triaud et al. 2010). Tho ...
... In general planets were thought to be mostly on orbits coplanar with their star's equator, something in line with predictions of disc migration. Recent results have shown that hot Jupiter planets on non-coplanar orbits are common, including some planets on retrograde orbits (Triaud et al. 2010). Tho ...
story of telescope
... European endeavours in astronomy in the medieval era was the making of a calendar at the behest of the Spanish king Alfonso X in 1252, which was Figure 5: Russian stamp carried out according to the commemorating Ulugh Beg, with a rules of Arabic astronomers. It picture of his Samarkand was only afte ...
... European endeavours in astronomy in the medieval era was the making of a calendar at the behest of the Spanish king Alfonso X in 1252, which was Figure 5: Russian stamp carried out according to the commemorating Ulugh Beg, with a rules of Arabic astronomers. It picture of his Samarkand was only afte ...
IAU 29th General Assembly
... •FM 2 – Astronomical Heritage: Progressing the UNESCO–IAU Initiative •FM 3 – Scholarly Publication in Astronomy: Evolution or Revolution? •FM 4 – Planetary Nebulae as Probes of Galactic Structure and Evolution •FM 5 – The Legacy of Planck •FM 6 – X-ray Surveys of the Hot and Energetic Cosmos •FM 7 – ...
... •FM 2 – Astronomical Heritage: Progressing the UNESCO–IAU Initiative •FM 3 – Scholarly Publication in Astronomy: Evolution or Revolution? •FM 4 – Planetary Nebulae as Probes of Galactic Structure and Evolution •FM 5 – The Legacy of Planck •FM 6 – X-ray Surveys of the Hot and Energetic Cosmos •FM 7 – ...
Our Place in Space
... should print out the cards (preferably in color) and laminate them so that the information on each object appears on the reverse side of the image of that object. ...
... should print out the cards (preferably in color) and laminate them so that the information on each object appears on the reverse side of the image of that object. ...
After School Guide to Ology Astronomy
... Big Ideas in Astronomy Astronomy is not astrology! Astrology — the belief that the stars and planets can affect your personality and your future — is not science. It’s the science of astronomy that seeks to explain what happens in the universe. Gravity is a key force throughout the universe, and rev ...
... Big Ideas in Astronomy Astronomy is not astrology! Astrology — the belief that the stars and planets can affect your personality and your future — is not science. It’s the science of astronomy that seeks to explain what happens in the universe. Gravity is a key force throughout the universe, and rev ...
Hubble Deep Field
The Hubble Deep Field (HDF) is an image of a small region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. It covers an area 2.5 arcminutes across, about one 24-millionth of the whole sky, which is equivalent in angular size to a 65 mm tennis ball at a distance of 100 metres. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between December 18 and December 28, 1995.The field is so small that only a few foreground stars in the Milky Way lie within it; thus, almost all of the 3,000 objects in the image are galaxies, some of which are among the youngest and most distant known. By revealing such large numbers of very young galaxies, the HDF has become a landmark image in the study of the early universe, with the associated scientific paper having received over 900 citations by the end of 2014.Three years after the HDF observations were taken, a region in the south celestial hemisphere was imaged in a similar way and named the Hubble Deep Field South. The similarities between the two regions strengthened the belief that the universe is uniform over large scales and that the Earth occupies a typical region in the Universe (the cosmological principle). A wider but shallower survey was also made as part of the Great Observatories Origins Deep Survey. In 2004 a deeper image, known as the Hubble Ultra-Deep Field (HUDF), was constructed from a few months of light exposure. The HUDF image was at the time the most sensitive astronomical image ever made at visible wavelengths, and it remained so until the Hubble Extreme Deep Field (XDF) was released in 2012.