Curiosities of the Sky
... found by photography in Sagittarius. One of Barnard's earliest and most excellent photographs includes two of them, both in the star-cluster M8. The larger, which is roughly rectangular in outline, contains one little star, and its smaller neighbor is lune-shaped -surely a most singular form for su ...
... found by photography in Sagittarius. One of Barnard's earliest and most excellent photographs includes two of them, both in the star-cluster M8. The larger, which is roughly rectangular in outline, contains one little star, and its smaller neighbor is lune-shaped -surely a most singular form for su ...
A Collection of Curricula for the STARLAB Polynesian Voyaging
... these are just "space fillers" between more prominent groups. Others are groups of stars in the Southern sky, too far south to be seen to advantage by these ancient astronomers, most of whom lived in Greece, Egypt, Persia, India and China. Some of the new constellations are named for modern mechanic ...
... these are just "space fillers" between more prominent groups. Others are groups of stars in the Southern sky, too far south to be seen to advantage by these ancient astronomers, most of whom lived in Greece, Egypt, Persia, India and China. Some of the new constellations are named for modern mechanic ...
BSA Astronomy Merit Badge
... Share body heat. To warm the person's body, remove your clothing and lie next to the person, making skin-to-skin contact. Then cover both of your bodies with blankets. Provide warm beverages. If the affected person is alert and able to swallow, provide a warm, nonalcoholic, non-caffeinated beverage ...
... Share body heat. To warm the person's body, remove your clothing and lie next to the person, making skin-to-skin contact. Then cover both of your bodies with blankets. Provide warm beverages. If the affected person is alert and able to swallow, provide a warm, nonalcoholic, non-caffeinated beverage ...
STELLAR CLASSIFICATIONS: TYPE “O” STARS
... there’s plenty of time for life to evolve around a star such as this. Color: These stars appear orange-red in the visible spectrum, but emit most of their light in the infrared. Even in the infrared, though, they’re still quite dim. Barnard’s star is shown in the picture to the side and the only rea ...
... there’s plenty of time for life to evolve around a star such as this. Color: These stars appear orange-red in the visible spectrum, but emit most of their light in the infrared. Even in the infrared, though, they’re still quite dim. Barnard’s star is shown in the picture to the side and the only rea ...
norfolk skies - Norfolk Astronomical Society
... take another look at it. And, as I moved around in the general area of where it was supposed to be, I ran across this very pretty double star! Now double stars are not unusual, but the colors of these two were. One was bright red, while the other appeared to be light blue! Thinking that this must be ...
... take another look at it. And, as I moved around in the general area of where it was supposed to be, I ran across this very pretty double star! Now double stars are not unusual, but the colors of these two were. One was bright red, while the other appeared to be light blue! Thinking that this must be ...
March 15 Newsletter
... accumulate a lethal dose within seconds. It produces a noticeable heating effect. Light years away, the pulsar at the nebula’s core is a stroboscope. Its light comes in bursts, a brilliant flash and then a fainter one: Sixty pulses a second in a steady rhythm. From the outskirts of the nebula the ob ...
... accumulate a lethal dose within seconds. It produces a noticeable heating effect. Light years away, the pulsar at the nebula’s core is a stroboscope. Its light comes in bursts, a brilliant flash and then a fainter one: Sixty pulses a second in a steady rhythm. From the outskirts of the nebula the ob ...
Foundations of Harappan Astronomy:
... The affect of these on the seasons is complex since the weather pattern in the Subcontinent is driven by the following parameters: 1) the evaporation in the southern hemisphere while it is winter in the north (around January in the present Epoch) 2) The movement of the moisture to the equatorial lat ...
... The affect of these on the seasons is complex since the weather pattern in the Subcontinent is driven by the following parameters: 1) the evaporation in the southern hemisphere while it is winter in the north (around January in the present Epoch) 2) The movement of the moisture to the equatorial lat ...
The Milky Way`s Restless Swarms of Stars
... almost never collide once they form,” Portegies Zwart says. “They kick each other out of the cluster rather than merge into something bigger.” The debate is far from over. Gebhardt SCIENCE ...
... almost never collide once they form,” Portegies Zwart says. “They kick each other out of the cluster rather than merge into something bigger.” The debate is far from over. Gebhardt SCIENCE ...
100 Binocular Deep Sky Objects
... in a group, but usually 2 objects in a group. Seeing DSOs in groups makes observing that much more enjoyable. Many of these objects are challenging and may not be seen unless observing with large binoculars or in very dark skies. In some cases I discuss what can be seen in various sizes of binocular ...
... in a group, but usually 2 objects in a group. Seeing DSOs in groups makes observing that much more enjoyable. Many of these objects are challenging and may not be seen unless observing with large binoculars or in very dark skies. In some cases I discuss what can be seen in various sizes of binocular ...
Star Location, Constellations and Intro to Solar System 1
... What to Remember - EW • What time during the day a star rises, is overhead, and sets changes with the seasons • look up on Star Chart (right ascension is the East-West location) • Changes 2 hours/month • Only on the Equator can all stars be viewed from a single location Hawaii or northern Chile a ...
... What to Remember - EW • What time during the day a star rises, is overhead, and sets changes with the seasons • look up on Star Chart (right ascension is the East-West location) • Changes 2 hours/month • Only on the Equator can all stars be viewed from a single location Hawaii or northern Chile a ...
Time From the Perspective of a Particle Physicist
... What to Remember - EW • What time during the day a star rises, is overhead, and sets changes with the seasons • look up on Star Chart (right ascension is the East-West location) • Changes 2 hours/month • Only on the Equator can all stars be viewed from a single location Hawaii or northern Chile a ...
... What to Remember - EW • What time during the day a star rises, is overhead, and sets changes with the seasons • look up on Star Chart (right ascension is the East-West location) • Changes 2 hours/month • Only on the Equator can all stars be viewed from a single location Hawaii or northern Chile a ...
The Magnitude System
... The Magnitude System The magnitude system is invented by Hipparchus in 120 BC, and is still used today, although the magnitude scale itself is not a meaningful “physical quantity” (it is just a scale). Initially this system was arbitrary because Hipparchus decided that all the brightest and most bea ...
... The Magnitude System The magnitude system is invented by Hipparchus in 120 BC, and is still used today, although the magnitude scale itself is not a meaningful “physical quantity” (it is just a scale). Initially this system was arbitrary because Hipparchus decided that all the brightest and most bea ...
A near IR adaptive optics search for faint companions to early
... We suspect that it is a highly reddened (J − K = 2.4) background star. In this region of sky there are other multiple systems with similar proper motions and radial velocities (e.g. HR 3283, 3322, 3359). Therefore, NO Pup belongs to an association. HD 108248/49/50 = α1,2 Cru. The coronographic image ...
... We suspect that it is a highly reddened (J − K = 2.4) background star. In this region of sky there are other multiple systems with similar proper motions and radial velocities (e.g. HR 3283, 3322, 3359). Therefore, NO Pup belongs to an association. HD 108248/49/50 = α1,2 Cru. The coronographic image ...
How Many Stars in the Sky?
... the number of stars, you should have a whole class discussion about possible ways to solve the problem. One possible method of solving the problem is to use small squares of paper to randomly choose which sections of the picture to count. Cut out about five or six 2 cm x 2 cm squares of paper for ea ...
... the number of stars, you should have a whole class discussion about possible ways to solve the problem. One possible method of solving the problem is to use small squares of paper to randomly choose which sections of the picture to count. Cut out about five or six 2 cm x 2 cm squares of paper for ea ...
General Astronomy - Stockton University
... The following example is from Richard Feynman, "What do we mean when we claim to 'understand' the Universe? We may imagine the enormously complicated situation of changing things we call the physical universe is a chess game played by the gods; we are not permitted to play, but we can watch. Our pro ...
... The following example is from Richard Feynman, "What do we mean when we claim to 'understand' the Universe? We may imagine the enormously complicated situation of changing things we call the physical universe is a chess game played by the gods; we are not permitted to play, but we can watch. Our pro ...
My Constellation
... glitters with an unusual metallic red while the entire region is bathed in a pale red nebula, lit from the same star. This red supergiant has a visual binary that just might be visible, depending on local conditions and the size of one's scope (see below). The star is estimated to be between 285 sun ...
... glitters with an unusual metallic red while the entire region is bathed in a pale red nebula, lit from the same star. This red supergiant has a visual binary that just might be visible, depending on local conditions and the size of one's scope (see below). The star is estimated to be between 285 sun ...
Chapter 15
... Gamma Hydra marks the tail of the water snake -- the longest constellation in the sky. The star climbs into view in the southeast by around 10 o'clock, and stands highest in the sky a few hours later. Gamma Hydra is about 130 light-years away. The fact that it's visible to the unaided eye across suc ...
... Gamma Hydra marks the tail of the water snake -- the longest constellation in the sky. The star climbs into view in the southeast by around 10 o'clock, and stands highest in the sky a few hours later. Gamma Hydra is about 130 light-years away. The fact that it's visible to the unaided eye across suc ...
5. cosmic distance ladder ii: standard candles
... these special types, you know its luminosity. Then you only have to measure its brightness to be able to compute its distance. Instead of brightness and luminosity, astronomers use apparent magnitude, m, for brightness and absolute magnitude, M, for luminosity. The above equation giving D as a funct ...
... these special types, you know its luminosity. Then you only have to measure its brightness to be able to compute its distance. Instead of brightness and luminosity, astronomers use apparent magnitude, m, for brightness and absolute magnitude, M, for luminosity. The above equation giving D as a funct ...
Learning Objectives
... these special types, you know its luminosity. Then you only have to measure its brightness to be able to compute its distance. Instead of brightness and luminosity, astronomers use apparent magnitude, m, for brightness and absolute magnitude, M, for luminosity. The above equation giving D as a funct ...
... these special types, you know its luminosity. Then you only have to measure its brightness to be able to compute its distance. Instead of brightness and luminosity, astronomers use apparent magnitude, m, for brightness and absolute magnitude, M, for luminosity. The above equation giving D as a funct ...
in BRIGHTEST STARS
... northernmost and dimmest of the three Triangle stars, but its association with the other bright stars makes it easy to identify. Deneb is circumpolar as seen from locations of about 45 degrees north latitude, roughly the northern tier of US states. In other words, from the northern U.S. and similar ...
... northernmost and dimmest of the three Triangle stars, but its association with the other bright stars makes it easy to identify. Deneb is circumpolar as seen from locations of about 45 degrees north latitude, roughly the northern tier of US states. In other words, from the northern U.S. and similar ...
Star-D_Teacher_Guide - The University of Texas at Dallas
... If your students don't use metric units on a regular basis, converting kilometers to miles or meters to feet might help them to understand the distances in the model. A mile is equal to about 1.6 kilometers, and a meter is equal to about 3.3 feet, so the distance between Alpha Centauri A and B is ro ...
... If your students don't use metric units on a regular basis, converting kilometers to miles or meters to feet might help them to understand the distances in the model. A mile is equal to about 1.6 kilometers, and a meter is equal to about 3.3 feet, so the distance between Alpha Centauri A and B is ro ...
Orion – The Hunter - Guild of Students
... called the Trapezium; it is located in the heart of the Orion nebula. This group of stars has been formed from the gas of the nebula, which now glows in their light. Zeta Ori (Alnitak), it is a tight double consisting of a 2.02 and 4th magnitude star. Eta Ori is a difficult pair to see as therse sta ...
... called the Trapezium; it is located in the heart of the Orion nebula. This group of stars has been formed from the gas of the nebula, which now glows in their light. Zeta Ori (Alnitak), it is a tight double consisting of a 2.02 and 4th magnitude star. Eta Ori is a difficult pair to see as therse sta ...
Stories in the Stars
... Polaris, the North Star. (See “Seasons and the Sun,” page 10). There is some variation in this, but it will be several thousand years before Polaris loses its place as a constant for celestial navigators. Because the northern point of our axis is constantly pointed at Polaris, that star seems to sta ...
... Polaris, the North Star. (See “Seasons and the Sun,” page 10). There is some variation in this, but it will be several thousand years before Polaris loses its place as a constant for celestial navigators. Because the northern point of our axis is constantly pointed at Polaris, that star seems to sta ...
Measuring the Stars Section 29.2
... Temperature is also related to luminosity and absolute magnitude. Hotter stars put out more light than stars with lower temperatures. Because the temperature of a star is not affected by its distance, by measuring the temperature and luminosity, distance is known. ...
... Temperature is also related to luminosity and absolute magnitude. Hotter stars put out more light than stars with lower temperatures. Because the temperature of a star is not affected by its distance, by measuring the temperature and luminosity, distance is known. ...
Crux
Crux /ˈkrʌks/, located in the deep southern sky, is the smallest yet one of the most distinctive of the 88 modern constellations. Its name is Latin for cross, and it is dominated by a cross-shaped asterism that is commonly known as the Southern Cross. Although visible to the Ancient Greeks, it was seen as part of the constellation Centaurus, and not defined or accurately mapped till the 16th century.Known as Acrux, blue-white Alpha Crucis is the constellation's brightest star and the bottom star of the cross. Nearly as bright are Beta and Gamma, while Delta and Epsilon make up the asterism. Many of the constellation's brighter stars are members of the Scorpius–Centaurus Association, a loose group of hot blue-white stars that appear to share a common origin and motion across the Milky Way. Two star systems have been found to have planets. The constellation also contains four Cepheid variables visible to the naked eye under optimum conditions. Crux also contains the Jewel Box, a bright open cluster, and the Coalsack Nebula, the most prominent dark nebula in the sky.