Astronomy 15 - Problem Set Number 4 1) Suppose one were to
... b) A star is found to have a displacement on the plates of almost half a pixel - 10 microns due to parallax, and simultaneously has a yearly displacement of 20 microns due to proper motion. Find its annual proper motion, its distance, and its transverse velocity. c) For this same star, a heliocentri ...
... b) A star is found to have a displacement on the plates of almost half a pixel - 10 microns due to parallax, and simultaneously has a yearly displacement of 20 microns due to proper motion. Find its annual proper motion, its distance, and its transverse velocity. c) For this same star, a heliocentri ...
KOI-54 Claude Plymate There is a star system about 45 light years
... turns out, the system is anything but typical or uninteresting. KOI-54 has been found to be a close binary system, consisting of nearly twin A stars in highly eccentric (e = 0.83) 41.8 day orbits about their mutual center of mass. These main sequence stars reside right at the bottom of the instabili ...
... turns out, the system is anything but typical or uninteresting. KOI-54 has been found to be a close binary system, consisting of nearly twin A stars in highly eccentric (e = 0.83) 41.8 day orbits about their mutual center of mass. These main sequence stars reside right at the bottom of the instabili ...
Galileo & the Telescope— Sept 20
... stars, but especially about the four planets flying around the star of Jupiter at unequal intervals and periods with wonderful swiftness; which unknown by anyone until this day, the first author detected recently and decided to name Midicean Stars. Venice ...
... stars, but especially about the four planets flying around the star of Jupiter at unequal intervals and periods with wonderful swiftness; which unknown by anyone until this day, the first author detected recently and decided to name Midicean Stars. Venice ...
$doc.title
... happened to the photons at those wavelengths? A. They were absorbed permanently by a medium. B. They were re-‐emitted after some length of time in a different direction after being absorbed by a medium. ...
... happened to the photons at those wavelengths? A. They were absorbed permanently by a medium. B. They were re-‐emitted after some length of time in a different direction after being absorbed by a medium. ...
Index to issues
... This general index covers topics in feature articles and the columns Astronomical Teachniques, Teachers' Challenge, and Photons Focused on: but does not index the seasonal Teachers Sky Planning Calendar, most RAP Sheets, the editor's My View of the Classroom Universe. Each listing consists of the Is ...
... This general index covers topics in feature articles and the columns Astronomical Teachniques, Teachers' Challenge, and Photons Focused on: but does not index the seasonal Teachers Sky Planning Calendar, most RAP Sheets, the editor's My View of the Classroom Universe. Each listing consists of the Is ...
The Quest for Object X - Department of Physics and Astronomy
... Most of the things in the sky look like dots or smudges of light. Even through the biggest telescopes only a few objects, like the large planets, a few galaxies and nebulae, show distinguishing details. It takes careful observation—with spectrometers, photometers, imaging cameras at a wide range of ...
... Most of the things in the sky look like dots or smudges of light. Even through the biggest telescopes only a few objects, like the large planets, a few galaxies and nebulae, show distinguishing details. It takes careful observation—with spectrometers, photometers, imaging cameras at a wide range of ...
If you wish to a copy of this months Night Sky News
... On the morning of the 7th the Moon rises at around 07:00, and with Mercury and Venus present a photo opportunity in the south-east. Saturn, Mars and Jupiter can be found at this time too, hugging the line of the ecliptic traced towards the west. Take an opportunity to observe them during the first t ...
... On the morning of the 7th the Moon rises at around 07:00, and with Mercury and Venus present a photo opportunity in the south-east. Saturn, Mars and Jupiter can be found at this time too, hugging the line of the ecliptic traced towards the west. Take an opportunity to observe them during the first t ...
the search for object x
... Most of the things in the sky look like dots or smudges of light. Even through the biggest telescopes only a few objects, like the large planets, a few galaxies and nebulae, show distinguishing details. It takes careful observation—with spectrometers, photometers, imaging cameras at a wide range of ...
... Most of the things in the sky look like dots or smudges of light. Even through the biggest telescopes only a few objects, like the large planets, a few galaxies and nebulae, show distinguishing details. It takes careful observation—with spectrometers, photometers, imaging cameras at a wide range of ...
DSSI at DCT: Superearth Validation with High
... use the publically available J-Band images covering the Kepler field. The vertical black line and all the region to its right (shaded yellow) shows the area one can eliminate based on Kepler difference images and Kepler centroiding of the exoplanet host star based on Kepler images taken in-and-out o ...
... use the publically available J-Band images covering the Kepler field. The vertical black line and all the region to its right (shaded yellow) shows the area one can eliminate based on Kepler difference images and Kepler centroiding of the exoplanet host star based on Kepler images taken in-and-out o ...
The thopograpy of Venus revealed at 1 micron
... recombination of the oxygen atoms (Slanger & al. 2001-2005), while the brighter Ashen light is more elusive and controversial (Russel & Philips, 1990). I imaged the planet’s dark hemisphere for a week, from March 12 th to March 18th 2009 from my backyard observatory near Perugia, Italy (lat = 43°05’ ...
... recombination of the oxygen atoms (Slanger & al. 2001-2005), while the brighter Ashen light is more elusive and controversial (Russel & Philips, 1990). I imaged the planet’s dark hemisphere for a week, from March 12 th to March 18th 2009 from my backyard observatory near Perugia, Italy (lat = 43°05’ ...
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.