Optics and Telescopes
... Refracting telescopes (refractors) form images by bending light rays to a focus point through glass lens. They have shortcomings like chromatic aberration, glass defects, and distortion by weight. Reflecting telescopes (reflectors) form images by reflecting light rays to the focus from curves ...
... Refracting telescopes (refractors) form images by bending light rays to a focus point through glass lens. They have shortcomings like chromatic aberration, glass defects, and distortion by weight. Reflecting telescopes (reflectors) form images by reflecting light rays to the focus from curves ...
Supernova! Toledo Astronomical Association, February 2009
... ENERGETIC In just a few weeks, a supernova can give off as much energy as the sun in it’s entire lifetime RARE On average, only one every 50 years in the entire Milky Way FAST Up to 3% of the speed of light ...
... ENERGETIC In just a few weeks, a supernova can give off as much energy as the sun in it’s entire lifetime RARE On average, only one every 50 years in the entire Milky Way FAST Up to 3% of the speed of light ...
12 Comets, Kuiper Belt Objects, and Pluto
... The only records we have of P/Halley prior to modern observations are artists’ depictions. The 1301 apparition seems to have been particularly spectacular. The Florentine artist Giotto di Bondone painted an Adoration of the Magi scene in the Scrovegni Chapel in Padua, around 1303-1305, in which he u ...
... The only records we have of P/Halley prior to modern observations are artists’ depictions. The 1301 apparition seems to have been particularly spectacular. The Florentine artist Giotto di Bondone painted an Adoration of the Magi scene in the Scrovegni Chapel in Padua, around 1303-1305, in which he u ...
Sounding Rocket Roundtable Discussion
... An important aspect of the program is that the P.I. is firmly in charge of the mission -- from proposal to payload design to making the launch decision to the data analysis and publication of results. -- Very appealing aspect of SR program to scientists. -- P.I. must work within an agreed-upon scien ...
... An important aspect of the program is that the P.I. is firmly in charge of the mission -- from proposal to payload design to making the launch decision to the data analysis and publication of results. -- Very appealing aspect of SR program to scientists. -- P.I. must work within an agreed-upon scien ...
HST Payload Processing at KSC
... competition between the 2 cycles, because we use the instant of minimum to set the timing of predictions for upcoming solar cycle. Best definition would be a dynamo model. • Solar minimum is a good time to study the Sun as a Star ...
... competition between the 2 cycles, because we use the instant of minimum to set the timing of predictions for upcoming solar cycle. Best definition would be a dynamo model. • Solar minimum is a good time to study the Sun as a Star ...
Spacecraft Navigation Using X-Ray Pulsars
... or extended x-ray objects, such as active galactic nebula (AGN). These additional sources with measured x-ray flux are cataloged to consider their potential use for navigation, such as attitude determination, or with further source analysis, for time, position, and/or velocity determination. The dat ...
... or extended x-ray objects, such as active galactic nebula (AGN). These additional sources with measured x-ray flux are cataloged to consider their potential use for navigation, such as attitude determination, or with further source analysis, for time, position, and/or velocity determination. The dat ...
NJIT Physics 320: Astronomy and Astrophysics
... Statistics of sunspot number by Swiss astronomer Rudolf Wolf (1816-1893) Relative sunspot number: r = k (f + 10 g), where g is the number of sunspots groups visible on the solar disk, f is the number of individual sunspots (including those distinguishable within groups), and k is a correction factor ...
... Statistics of sunspot number by Swiss astronomer Rudolf Wolf (1816-1893) Relative sunspot number: r = k (f + 10 g), where g is the number of sunspots groups visible on the solar disk, f is the number of individual sunspots (including those distinguishable within groups), and k is a correction factor ...
Document
... light from an astronomical source and to focus that light into an image The light gathering ability of a telescope is defined by its diameter or aperture Before the 20th century, astronomer looked through the telescope with their eyes Today the images are recorded photographically and electronically ...
... light from an astronomical source and to focus that light into an image The light gathering ability of a telescope is defined by its diameter or aperture Before the 20th century, astronomer looked through the telescope with their eyes Today the images are recorded photographically and electronically ...
The Telescope - Salt Lake Astronomical Society
... For as long as man has been capable of wondering, the night sky has provided subject material to wonder about. Trying to see more clearly and to find greater detail of the objects in the sky had been a desire of all the ancient astronomers. The true beginning of telescopes is somewhat foggy in histo ...
... For as long as man has been capable of wondering, the night sky has provided subject material to wonder about. Trying to see more clearly and to find greater detail of the objects in the sky had been a desire of all the ancient astronomers. The true beginning of telescopes is somewhat foggy in histo ...
The Swift satellite lives up to its name, revealing cosmic
... panying supernova component (expected for nearby long GRBs) found nothing to stringent limits, and together with the elliptical host galaxy this provided evidence in support of an origin for short bursts which is completely different from the massive star origins of their long-duration cousins: the ...
... panying supernova component (expected for nearby long GRBs) found nothing to stringent limits, and together with the elliptical host galaxy this provided evidence in support of an origin for short bursts which is completely different from the massive star origins of their long-duration cousins: the ...
Jul y 9- 11,
... observations, we show the presence of extended dark matter halos around NGC4342 and NGC4291, thereby demonstrating that the observed low bulge masses are not due to tidal stripping. We thus conclude that the BHs and the bulges did not co-evolve, as opposed to current theoretical models. The presence ...
... observations, we show the presence of extended dark matter halos around NGC4342 and NGC4291, thereby demonstrating that the observed low bulge masses are not due to tidal stripping. We thus conclude that the BHs and the bulges did not co-evolve, as opposed to current theoretical models. The presence ...
Progress on the 1.6-meter New Solar Telescope at Big Bear Solar
... The heat stop will be designed and built in-house by the Institute for Astronomy, who developed a similar heat stop for their 0.5-meter aperture SOLAR-C telescope. The off-axis design also makes the NST ideally suited for night-time observations requiring low stray-light and a well-known telescope m ...
... The heat stop will be designed and built in-house by the Institute for Astronomy, who developed a similar heat stop for their 0.5-meter aperture SOLAR-C telescope. The off-axis design also makes the NST ideally suited for night-time observations requiring low stray-light and a well-known telescope m ...
On the nature of the stellar-mass black-hole candidate X
... is not applied and see whether there are some large deviations from the corrected spectrum where epfast is applied (epfast is to correct for calibration uncertainties, which show up in the spectrum of the source). ...
... is not applied and see whether there are some large deviations from the corrected spectrum where epfast is applied (epfast is to correct for calibration uncertainties, which show up in the spectrum of the source). ...
An approach to ground based space surveillance
... objects would appear merged in an image as the resolving power of the telescope and detector, coupled with atmospheric seeing, limits the ability to resolve the two objects. This poses an issue for obtaining orbital data for conjunction flight safety or, in matters pertaining to space security, infe ...
... objects would appear merged in an image as the resolving power of the telescope and detector, coupled with atmospheric seeing, limits the ability to resolve the two objects. This poses an issue for obtaining orbital data for conjunction flight safety or, in matters pertaining to space security, infe ...
Chandra News March 2005 Published by the Chandra X-ray Center (CXC)
... X-ray drop. Radio observations by Bob Duncan and Stephen White confirmed the presence of a minimum in radio brightness but also showed secular decreases in the radio emission. This is in contrast to the RXTE observations which showed secular increases in the 2-10 keV flux for most of the interval pr ...
... X-ray drop. Radio observations by Bob Duncan and Stephen White confirmed the presence of a minimum in radio brightness but also showed secular decreases in the radio emission. This is in contrast to the RXTE observations which showed secular increases in the 2-10 keV flux for most of the interval pr ...
Document
... Men and women have looked up at the sky and wondered about the things they see up there for as long as humans have lived on our Earth. Long ago, the Sun and Moon were mysterious objects that could be seen in the day and night. But the planets and stars were even more mysterious probably because they ...
... Men and women have looked up at the sky and wondered about the things they see up there for as long as humans have lived on our Earth. Long ago, the Sun and Moon were mysterious objects that could be seen in the day and night. But the planets and stars were even more mysterious probably because they ...