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The Hubble Space Telescope
... The bright orange spot in the center gathers dust and debris from the disk eventually nuclear fusion occurs and a STAR is BORN Heat and radiation create a stellar wind sweeping away lose matter, but some debris remains eventually clumping together to become ...
... The bright orange spot in the center gathers dust and debris from the disk eventually nuclear fusion occurs and a STAR is BORN Heat and radiation create a stellar wind sweeping away lose matter, but some debris remains eventually clumping together to become ...
September Evening Skies
... No planets are above the horizon at map time. Seven objects of first magnitude or brighter are visible. In order of brightness they are: Arcturus, Vega, Capella, Altair, Antares, Fomalhaut, and Deneb. In addition to stars, other objects that should be visible to the unaided eye are labeled on the ma ...
... No planets are above the horizon at map time. Seven objects of first magnitude or brighter are visible. In order of brightness they are: Arcturus, Vega, Capella, Altair, Antares, Fomalhaut, and Deneb. In addition to stars, other objects that should be visible to the unaided eye are labeled on the ma ...
A Comparison of CCD Images Taken with Different Cameras Abstract
... The Ring Nebula, also known as M57, is shown in Figure 1. It has a classic shape for planetaries, but it is far from the only shape possible. Other such objects have complicated arcs or loops of gas in emission or a gas cloud which is bipolar in shape. An example is shown in Figure 2 of NGC 6543 tak ...
... The Ring Nebula, also known as M57, is shown in Figure 1. It has a classic shape for planetaries, but it is far from the only shape possible. Other such objects have complicated arcs or loops of gas in emission or a gas cloud which is bipolar in shape. An example is shown in Figure 2 of NGC 6543 tak ...
Astronomy 20 Homework # 1
... meridian. It is a local midnight. (a) What is the local siderial time? (b) What day of the year is it? (c) What is the approximate universal time (assume that you are in California)? ...
... meridian. It is a local midnight. (a) What is the local siderial time? (b) What day of the year is it? (c) What is the approximate universal time (assume that you are in California)? ...
calibration frames - RASC Ottawa Centre
... Starfest 2000 is on the CDR and the web site. The techniques in it ...
... Starfest 2000 is on the CDR and the web site. The techniques in it ...
Test 2 Review Topics
... or lowest λ, ν, and energy. 8. Determine which star is hotter from the color. 9. What is an atmospheric window? 10. Recall whether a lens or mirror is used as the primary objective for refracting and reflecting telescopes. What is the major problem with each of these types of optical telescopes? 11. ...
... or lowest λ, ν, and energy. 8. Determine which star is hotter from the color. 9. What is an atmospheric window? 10. Recall whether a lens or mirror is used as the primary objective for refracting and reflecting telescopes. What is the major problem with each of these types of optical telescopes? 11. ...
Astrophotography
![](https://commons.wikimedia.org/wiki/Special:FilePath/Orion_Belt.jpg?width=300)
Astrophotography is a specialized type of photography for recording images of astronomical objects and large areas of the night sky. The first photograph of an astronomical object (the Moon) was taken in 1840, but it was not until the late 19th century that advances in technology allowed for detailed stellar photography. Besides being able to record the details of extended objects such as the Moon, Sun, and planets, astrophotography has the ability to image objects invisible to the human eye such as dim stars, nebulae, and galaxies. This is done by long time exposure since both film and digital cameras can accumulate and sum light photons over these long periods of time. Photography revolutionized the field of professional astronomical research, with long time exposures recording hundreds of thousands of new stars and nebulae that were invisible to the human eye, leading to specialized and ever larger optical telescopes that were essentially big cameras designed to collect light to be recorded on film. Direct astrophotography had an early role in sky surveys and star classification but over time it has given way to more sophisticated equipment and techniques designed for specific fields of scientific research, with film (and later astronomical CCD cameras) becoming just one of many forms of sensor.Astrophotography is a large sub-discipline in amateur astronomy where it is usually used to record aesthetically pleasing images, rather than for scientific research, with a whole range of equipment and techniques dedicated to the activity.