Calculating Parallax Lab
... What is the total shift for each star over this time period: ______________ What is the parallax for the star? ______________ What is the distance to the star (in parsecs)? _______________ 12. Parallax is only one method (known as “standard candles”) to determine the distance to nearby stars. There ...
... What is the total shift for each star over this time period: ______________ What is the parallax for the star? ______________ What is the distance to the star (in parsecs)? _______________ 12. Parallax is only one method (known as “standard candles”) to determine the distance to nearby stars. There ...
16. Magnitude Systems
... measure the “flux” (the total amount of energy per unit area arriving at the telescope’s detector per second) • To create a standard system of how relatively bright sources appear to be, astronomers created a system of magnitudes. For magnitude (m) and flux (f) – m - m0 = -2.5log10(f/f0) – where the ...
... measure the “flux” (the total amount of energy per unit area arriving at the telescope’s detector per second) • To create a standard system of how relatively bright sources appear to be, astronomers created a system of magnitudes. For magnitude (m) and flux (f) – m - m0 = -2.5log10(f/f0) – where the ...
The phenomena of the satellites of the giant planets
... the profile of the standard filters used at Haute Provence Observatory (OHP). ...
... the profile of the standard filters used at Haute Provence Observatory (OHP). ...
Globular Clusters
... blue stars, fusing helium. They are considerably dimmer than the brightest red giants, but they can still be visible in photographs or with large telescopes. Blue Stragglers Dimmer yet, but still brighter than the sun-like yellow stars, are the "Blue Stragglers". These are large "main sequence" star ...
... blue stars, fusing helium. They are considerably dimmer than the brightest red giants, but they can still be visible in photographs or with large telescopes. Blue Stragglers Dimmer yet, but still brighter than the sun-like yellow stars, are the "Blue Stragglers". These are large "main sequence" star ...
Abstracts of Oral Papers
... Stefan Maeder, Kokugakuin University, Faculty of Letters, 4-10-28 Higashi, Shibuya-ku, 150-8440 Tokyo, Japan ([email protected]) The “Big Dipper” in Ursa Major was and is the most conspicuous asterism in the northern sky. Furthermore it is circumpolar and could be used as a means for identifying the ...
... Stefan Maeder, Kokugakuin University, Faculty of Letters, 4-10-28 Higashi, Shibuya-ku, 150-8440 Tokyo, Japan ([email protected]) The “Big Dipper” in Ursa Major was and is the most conspicuous asterism in the northern sky. Furthermore it is circumpolar and could be used as a means for identifying the ...
Photonic Astronomy and Quantum Optics
... otherwise identical spectrum, polarization, intensity, etc., and studies of such nonclassical properties of light are actively pursued in laboratory optics. Since almost all astronomy is based upon the interpretation of subtleties in the light from astronomical sources, quantum optics appears to hav ...
... otherwise identical spectrum, polarization, intensity, etc., and studies of such nonclassical properties of light are actively pursued in laboratory optics. Since almost all astronomy is based upon the interpretation of subtleties in the light from astronomical sources, quantum optics appears to hav ...
Astrophotography
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.