Andromeda Nebula Lies Outside Milky Way Galaxy
... In 1912, Miss Leavitt was the first to recognize the importance of Cepheid variables. They are giant stars, and each varies in brightness over time. Cepheids are named after the first such star of its type found: Delta Cephei in the constellation Cepheus. While studying Cepheids in the Small Magella ...
... In 1912, Miss Leavitt was the first to recognize the importance of Cepheid variables. They are giant stars, and each varies in brightness over time. Cepheids are named after the first such star of its type found: Delta Cephei in the constellation Cepheus. While studying Cepheids in the Small Magella ...
Manual - Scientifics
... No matter which eyepiece you intend to use, always start by using the lowest-power (longest focal length) eyepiece to locate and center the object. Lower magnification means a wider field of view, making it easier to find an object. Once you’ve centered the desired object using your lowest-power eye ...
... No matter which eyepiece you intend to use, always start by using the lowest-power (longest focal length) eyepiece to locate and center the object. Lower magnification means a wider field of view, making it easier to find an object. Once you’ve centered the desired object using your lowest-power eye ...
From Inner Earth to Outer Space
... Soviet satellite Sputnik in 1957, NASA placed two orbital astronomical observatories (OAO) into Earth orbit. The OAOs made a number of ultraviolet observations and established the basic principles for the design, manufacture and launch of future space observatories.8 Scientific, governmental and ind ...
... Soviet satellite Sputnik in 1957, NASA placed two orbital astronomical observatories (OAO) into Earth orbit. The OAOs made a number of ultraviolet observations and established the basic principles for the design, manufacture and launch of future space observatories.8 Scientific, governmental and ind ...
SkyFi Quick Start
... SkyFi’s network, or when you try to connect to your telescope, then you probably joined the wrong WiFi network, or entered the wrong WEP key. Make sure there are no nearby WiFi devices with conflicting network names (like other SkyFi units, or computers/iPhones which were previously joined to SkyFi’ ...
... SkyFi’s network, or when you try to connect to your telescope, then you probably joined the wrong WiFi network, or entered the wrong WEP key. Make sure there are no nearby WiFi devices with conflicting network names (like other SkyFi units, or computers/iPhones which were previously joined to SkyFi’ ...
Radio Telescopes
... The twin Keck telescopes on Mauna Kea in Hawaii can be used together, more than doubling their ability to distinguish objects. A Keck reflector is shown in the inset photo. Currently, plans include using these telescopes, along with four others to obtain images that will help answer questions about ...
... The twin Keck telescopes on Mauna Kea in Hawaii can be used together, more than doubling their ability to distinguish objects. A Keck reflector is shown in the inset photo. Currently, plans include using these telescopes, along with four others to obtain images that will help answer questions about ...
Collimating Orion StarMax and Apex Maksutov
... differ from Figure 2a, but the diagram will give you the general idea of how things will look. Note there are six alignment screws on the back of the optical tube, three large and three small. You will need 3mm and 2mm Allen wrenches to turn these screws. These alignment screws push and pull the mir ...
... differ from Figure 2a, but the diagram will give you the general idea of how things will look. Note there are six alignment screws on the back of the optical tube, three large and three small. You will need 3mm and 2mm Allen wrenches to turn these screws. These alignment screws push and pull the mir ...
UCO Focus - Lick Observatory
... up all night searching star to star. But the idea of letting a computer take the graveyard shift was more appealing after months of little sleep. So we wrote software to replace ourselves with a robot,” said University of Hawaii graduate student Benjamin “BJ” Fulton. The Keck Observatory found the f ...
... up all night searching star to star. But the idea of letting a computer take the graveyard shift was more appealing after months of little sleep. So we wrote software to replace ourselves with a robot,” said University of Hawaii graduate student Benjamin “BJ” Fulton. The Keck Observatory found the f ...
September 2013 - astronomy for beginners
... For those who had prepared early enough and had checked predictions on the web, there was a pass of the International Space Station (ISS) at about 21:30. This was followed about an hour and a half later by another pass. The first meteors began to be seen soon after 10 o’clock when the sky was dark e ...
... For those who had prepared early enough and had checked predictions on the web, there was a pass of the International Space Station (ISS) at about 21:30. This was followed about an hour and a half later by another pass. The first meteors began to be seen soon after 10 o’clock when the sky was dark e ...
December 2015
... horizon would be directly proportional to the mass of the black hole. A black hole the mass of Earth would have an event horizon less than a centimeter in radius; a black hole the mass of the sun would have an event horizon just a few kilometers in radius; and a supermassive black hole would have an ...
... horizon would be directly proportional to the mass of the black hole. A black hole the mass of Earth would have an event horizon less than a centimeter in radius; a black hole the mass of the sun would have an event horizon just a few kilometers in radius; and a supermassive black hole would have an ...
For Me? You Shouldn`t Have! - Robert Ferguson Observatory
... (You might want to make a note of the date for next year.) According to the mission’s website, “SDO is designed to help us understand the Sun’s influence on Earth and Near-Earth space by studying the solar atmosphere on small scales of space and time and in many wavelengths simultaneously”. I guess ...
... (You might want to make a note of the date for next year.) According to the mission’s website, “SDO is designed to help us understand the Sun’s influence on Earth and Near-Earth space by studying the solar atmosphere on small scales of space and time and in many wavelengths simultaneously”. I guess ...
Chapter 3
... The magnification of a telescope is how many times bigger an object looks through a telescope compared to how it looks with the naked eye. The focal length of a telescope (Ft) is the equivalent distance from the lens or mirror to the plane where the image forms. The focal length of an eyepiece (Fe) ...
... The magnification of a telescope is how many times bigger an object looks through a telescope compared to how it looks with the naked eye. The focal length of a telescope (Ft) is the equivalent distance from the lens or mirror to the plane where the image forms. The focal length of an eyepiece (Fe) ...
The Tools of Astronomy
... 4. A lens has two surfaces that must be accurately machined and polished—a task that can be very difficult indeed—but a mirror has only one. For these reasons, all large modern telescopes use mirrors as their primary light gatherers. The largest refractor ever built, installed in 1897 at the Yerkes ...
... 4. A lens has two surfaces that must be accurately machined and polished—a task that can be very difficult indeed—but a mirror has only one. For these reasons, all large modern telescopes use mirrors as their primary light gatherers. The largest refractor ever built, installed in 1897 at the Yerkes ...
Raytracing the Chandra PSF Try this at Home! D. Jerius T.J. Gaetz
... Precision metrology of the optics’ surfaces Accurate measurements of optical constants of the Ir coating As-built support and baffle dimensions As-built optic positions and alignment, augmented by XRCF ...
... Precision metrology of the optics’ surfaces Accurate measurements of optical constants of the Ir coating As-built support and baffle dimensions As-built optic positions and alignment, augmented by XRCF ...
Chapter 26
... • Even using active and adaptive optics, the atmosphere limits what Earth-based telescopes can achieve. • For this reason, astronomers use space telescopes, such as the Hubble Space Telescope. • Large distances in space are measured in a unit called a light-year, the distance that light travels i ...
... • Even using active and adaptive optics, the atmosphere limits what Earth-based telescopes can achieve. • For this reason, astronomers use space telescopes, such as the Hubble Space Telescope. • Large distances in space are measured in a unit called a light-year, the distance that light travels i ...
Schmidt-Cassegrain Optical Tube Assembly
... clockwise to focus on a closer object and counterclockwise for a more distant object. A single turn of the focusing knob moves the primary mirror only slightly. Therefore, it will take many turns (about 30) to go from close focus to infinity. For astronomical viewing, out of focus star images are ve ...
... clockwise to focus on a closer object and counterclockwise for a more distant object. A single turn of the focusing knob moves the primary mirror only slightly. Therefore, it will take many turns (about 30) to go from close focus to infinity. For astronomical viewing, out of focus star images are ve ...
ICSO_NIRSpec optics development_v2
... The European contribution to the James Webb Space Telescope (JWST) program includes the launch service by Ariane V and the Near InfraRed Spectrograph (NIRSpec). The prime contractor of this instrument is EADS Astrium in Ottobrunn, Germany and, thanks to its 10 years experience in SiC mirrors manufac ...
... The European contribution to the James Webb Space Telescope (JWST) program includes the launch service by Ariane V and the Near InfraRed Spectrograph (NIRSpec). The prime contractor of this instrument is EADS Astrium in Ottobrunn, Germany and, thanks to its 10 years experience in SiC mirrors manufac ...
Controlling a Three Meter Mirror Array Reflector to Track Stars
... The University of Utah Gamma Ray Group and the Department of Physics and Astronomy acquired a number of mirror array reflecting telescopes that will be used for a wide range of astronomical research. Two of these 3 meter antennas have been assembled in the Grantsville desert to begin this work. The ...
... The University of Utah Gamma Ray Group and the Department of Physics and Astronomy acquired a number of mirror array reflecting telescopes that will be used for a wide range of astronomical research. Two of these 3 meter antennas have been assembled in the Grantsville desert to begin this work. The ...
The Large Binocular Telescope`s ARGOS ground
... deliver high resolution near infrared images over a field of 4 arc minute diameter. ARGOS is motivated by a successful prototype multi-laser guide star system on the 6.5 m MMT telescope, results from which are presented in this paper. At the LBT, each side of the twin 8.4 m aperture is being equippe ...
... deliver high resolution near infrared images over a field of 4 arc minute diameter. ARGOS is motivated by a successful prototype multi-laser guide star system on the 6.5 m MMT telescope, results from which are presented in this paper. At the LBT, each side of the twin 8.4 m aperture is being equippe ...
104-cm Sampurnanand Telescope
... Observing with the telescope We describe below the operation of the 104-cm telescope and the back-end instruments with special reference to the Wrights 2k CCD camera. It should be noted that the 40-inch telescope has been in operation since last 30 years and as a result its operation is becoming cri ...
... Observing with the telescope We describe below the operation of the 104-cm telescope and the back-end instruments with special reference to the Wrights 2k CCD camera. It should be noted that the 40-inch telescope has been in operation since last 30 years and as a result its operation is becoming cri ...
Driving with Bioptic Telescopes
... Driving with a bioptic telescope requires extensive training in the ...
... Driving with a bioptic telescope requires extensive training in the ...
FIRSTSCOPE 60 - MODELS #21055 and #21055-DX
... even on a modest budget. Newtonian Reflector telescopes do require more care and maintenance because the primary mirror is exposed to air and dust. However, this small drawback does not hamper this type of telescope’s popularity with those who want an economical telescope that can still resolve fain ...
... even on a modest budget. Newtonian Reflector telescopes do require more care and maintenance because the primary mirror is exposed to air and dust. However, this small drawback does not hamper this type of telescope’s popularity with those who want an economical telescope that can still resolve fain ...
James Webb Space Telescope
The James Webb Space Telescope (JWST), previously known as Next Generation Space Telescope (NGST), is a space observatory under construction and scheduled to launch in October 2018. The JWST will offer unprecedented resolution and sensitivity from long-wavelength visible to the mid-infrared, and is a successor instrument to the Hubble Space Telescope and the Spitzer Space Telescope. The telescope features a segmented 6.5-meter (21 ft) diameter primary mirror and will be located near the Earth–Sun L2 point. A large sunshield will keep its mirror and four science instruments below 50 K (−220 °C; −370 °F).JWST's capabilities will enable a broad range of investigations across the fields of astronomy and cosmology. One particular goal involves observing some of the most distant objects in the Universe, beyond the reach of current ground and space based instruments. This includes the very first stars, the epoch of reionization, and the formation of the first galaxies. Another goal is understanding the formation of stars and planets. This will include imaging molecular clouds and star-forming clusters, studying the debris disks around stars, direct imaging of planets, and spectroscopic examination of planetary transits.In gestation since 1996, the project represents an international collaboration of about 17 countries led by NASA, and with significant contributions from the European Space Agency and the Canadian Space Agency. It is named after James E. Webb, the second administrator of NASA, who played an integral role in the Apollo program.The JWST has a history of major cost overruns and delays. The first realistic budget estimates were that the observatory would cost $1.6 billion and launch in 2011. NASA has now scheduled the telescope for a 2018 launch. In 2011, the United States House of Representatives voted to terminate funding, after about $3 billion had been spent and 75 percent of its hardware was in production. Funding was restored in compromise legislation with the US Senate, and spending on the program was capped at $8 billion. As of December 2014, the telescope remained on schedule and within budget, but at risk of further delays.