標(biāo)題: Titlebook: Exploring the Universe; A Practical Guide fo James Dire Book 2024 The Editor(s) (if applicable) and The Author(s), under exclusive license [打印本頁] 作者: dilate 時(shí)間: 2025-3-21 19:50
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書目名稱Exploring the Universe讀者反饋
書目名稱Exploring the Universe讀者反饋學(xué)科排名
作者: Cosmopolitan 時(shí)間: 2025-3-21 21:45
978-3-031-65345-2The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl作者: 噴出 時(shí)間: 2025-3-22 01:46 作者: Explosive 時(shí)間: 2025-3-22 06:58 作者: 泛濫 時(shí)間: 2025-3-22 09:29 作者: 愛哭 時(shí)間: 2025-3-22 12:57
Claudia N. Keilhauer,Fran?ois C. Delorimirrors to gather light. Catadioptric telescopes contain a combination of lenses and mirrors. Refractors with single-lens objectives suffer severely from chromatic aberration. Doublet objectives, sometimes called acromats, use two lenses to reduce some of the chromatic aberration. Using three or mor作者: 愛哭 時(shí)間: 2025-3-22 19:25
Microperimetry in Macular Disease,nd CMOS cameras. Simple astrophotography can be conducted using a camera with a wide-field lens mounted on a tripod. Exposure time must be small since the Earth’s rotation causes celestial objects to move. Longer exposures using a camera and lens can be conducted with the camera mounted on a device 作者: BROOK 時(shí)間: 2025-3-22 23:32 作者: 猜忌 時(shí)間: 2025-3-23 03:27 作者: 合唱團(tuán) 時(shí)間: 2025-3-23 06:14
https://doi.org/10.1007/978-3-030-19059-0rsely proportional to the square of its distance. The luminosity of a star depends on its temperature and surface area. Stars are primarily classified by their temperature. A Hertzsprung-Russell (HR) diagram plots luminosity versus temperature for stars. Most stars fall on a swath from upper left to作者: Needlework 時(shí)間: 2025-3-23 13:15 作者: Reverie 時(shí)間: 2025-3-23 17:16
Functionalist Perspective on Health,er called the photosphere. The photosphere has a temperature of 5780 K. The core of the Sun is at 15,000,000 K. In the core, nuclear fusion converts hydrogen into helium. The energy released transfers from the core to the photosphere through radiation and convective layers. Dark sunspots are observe作者: Heterodoxy 時(shí)間: 2025-3-23 18:42 作者: 狗窩 時(shí)間: 2025-3-24 01:53
https://doi.org/10.1007/978-981-10-1923-4ases in those stars reach escape velocity as the star increases in diameter. These gases will eventually form a nebula around the star. These nebulae are called planetary nebulae since many appear as unresolved blue disks in small telescopes similar to the planets Uranus and Neptune. Stars ten times作者: chandel 時(shí)間: 2025-3-24 04:16 作者: 遺留之物 時(shí)間: 2025-3-24 08:07 作者: 開始沒有 時(shí)間: 2025-3-24 11:34
Acta Neurochirurgica Supplementike small galactic star clusters, globular star clusters have enough mass to keep all member stars gravitationally bound to the cluster. Globular star clusters tend to be spherical in shape. They do not typically orbit the plane or our galaxy but are in randomly inclined orbits through the halo of t作者: MAG 時(shí)間: 2025-3-24 15:05 作者: 反饋 時(shí)間: 2025-3-24 22:27
LUTS/Benign Prostatic Hyperplasia,. that contribute to the gravity that holds galaxies together. The Milky Way is our home galaxy. It contains more than 100 billion stars and is approximately 100,000 light years in size. Galaxies are classified by shape as spiral, elliptical, or irregular. Spiral galaxies have a disk, galactic bulge作者: 思考才皺眉 時(shí)間: 2025-3-25 01:15
Brian P. Hinote,Jason Adam Wassermanr eclipse occurs when the Moon covers the entire Sun as viewed from the surface of the Earth. During a partial or annular eclipse, the Moon does not cover the entire Sun. During an annular solar eclipse, the center of the Moon passes over the center of the Sun, but the Moon is too far away in its elliptical orbit to obscure the entire Sun.作者: 贊成你 時(shí)間: 2025-3-25 04:46
Black Theology and Reconciliation, typically regions where stars are forming. Blue light is scattered more readily than red light, so often, reflection nebulae appear blue. Reflection nebulae often appear with emission nebulae. Dark nebulae are clouds of dust that block light from behind them. The light blocked may be from stars, or it may be from emission or reflection nebulae.作者: 龍蝦 時(shí)間: 2025-3-25 10:59
Paulette Posner,Muhammad Ali,Stephen Douglasf nuclear fuel much faster and have short lifetimes. Red dwarf stars have only 10% the mass of the Sun. They take longer to form but may live one hundred times longer than the Sun. While red dwarf stars are not as bright as yellow dwarf stars, giant stars, and supergiant stars, most of the stars in the universe may be red dwarf stars.作者: 打火石 時(shí)間: 2025-3-25 13:49
Eclipses,r eclipse occurs when the Moon covers the entire Sun as viewed from the surface of the Earth. During a partial or annular eclipse, the Moon does not cover the entire Sun. During an annular solar eclipse, the center of the Moon passes over the center of the Sun, but the Moon is too far away in its elliptical orbit to obscure the entire Sun.作者: Ophthalmoscope 時(shí)間: 2025-3-25 19:00
Emission, Reflection, and Dark Nebulae, typically regions where stars are forming. Blue light is scattered more readily than red light, so often, reflection nebulae appear blue. Reflection nebulae often appear with emission nebulae. Dark nebulae are clouds of dust that block light from behind them. The light blocked may be from stars, or it may be from emission or reflection nebulae.作者: 即席 時(shí)間: 2025-3-25 20:04
Galactic Star Clusters,f nuclear fuel much faster and have short lifetimes. Red dwarf stars have only 10% the mass of the Sun. They take longer to form but may live one hundred times longer than the Sun. While red dwarf stars are not as bright as yellow dwarf stars, giant stars, and supergiant stars, most of the stars in the universe may be red dwarf stars.作者: Generic-Drug 時(shí)間: 2025-3-26 00:47
Book 2024ght sky? Whether you are just beginning or an advanced amateur astronomer, you will want to have this book in your astronomical library. This book wraps up an entire astronomy course around the study of astronomical images, all of which have been taken by the author.?The fascinating images contained作者: 輕率看法 時(shí)間: 2025-3-26 05:39
Microperimetry in Macular Disease,ra without a lens is attached to a telescope in place of the eyepiece. Thus, the telescope becomes the lens for the camera, producing high-magnification images. Digital images must be calibrated using dark frames, flat-field frames, and bias frames.作者: Recess 時(shí)間: 2025-3-26 09:11 作者: 殺菌劑 時(shí)間: 2025-3-26 16:36
https://doi.org/10.1007/978-3-030-19059-0f all stars are double stars that are gravitationally bound to each other. These are called .. Some binary stars can be resolved with telescopes. Others are detected through spectroscopic and photometric studies.作者: 染色體 時(shí)間: 2025-3-26 19:00 作者: Abrupt 時(shí)間: 2025-3-27 00:27
Functionalist Perspective on Health,y thin layer called the chromosphere. The chromosphere is the lower atmosphere of the Sun. The upper atmosphere of the Sun is called the corona. The solar wind consists of highly energetic ions escaping the Sun’s gravity from the corona.作者: ingenue 時(shí)間: 2025-3-27 03:16 作者: 碎石頭 時(shí)間: 2025-3-27 05:57
Acta Neurochirurgica Supplementen Sawyer developed a classification scheme for globular clusters. The Shapley-Sawyer classifications are numbered with Roman numerals I to XII based on the concentration of stars in the cores of the clusters. Level I clusters have the highest concentration of stars in their cores. Level XII clusters have virtually no concentrated cores.作者: mydriatic 時(shí)間: 2025-3-27 11:22
Devising Healthcare and Society,e from Earth. The orbits of comets do not necessarily lie in or near the ecliptic. When their distant orbits are perturbed, comets can enter the inner solar system. These comets are classified as single-pass or periodic depending on whether their orbits are hyperbolic, parabolic, or elliptical.作者: 大包裹 時(shí)間: 2025-3-27 14:28
Astrophotography,ra without a lens is attached to a telescope in place of the eyepiece. Thus, the telescope becomes the lens for the camera, producing high-magnification images. Digital images must be calibrated using dark frames, flat-field frames, and bias frames.作者: Assault 時(shí)間: 2025-3-27 21:19 作者: 拘留 時(shí)間: 2025-3-28 01:25
Stars,f all stars are double stars that are gravitationally bound to each other. These are called .. Some binary stars can be resolved with telescopes. Others are detected through spectroscopic and photometric studies.作者: Incumbent 時(shí)間: 2025-3-28 03:56
The Moon,arly sized moons around Jupiter, Saturn, and Neptune, the Moon does not orbit in Earth’s equatorial plane. It orbits in a plane tilted five degrees to the ecliptic plane (the plane of the Earth’s orbit around the Sun). The Moon is composed of silicate rocks and does not have an iron core or magnetic field like the Earth.作者: chandel 時(shí)間: 2025-3-28 07:41
The Sun,y thin layer called the chromosphere. The chromosphere is the lower atmosphere of the Sun. The upper atmosphere of the Sun is called the corona. The solar wind consists of highly energetic ions escaping the Sun’s gravity from the corona.作者: 核心 時(shí)間: 2025-3-28 14:01
Planetary Nebulae and Supernovae Remnants,The supernova creates a shell of expanding gases that appears as a nebula. These nebulae are called supernovae remnants. Planetary nebulae and supernovae remnants are transient phenomena. Eventually, the gases spread out to the point where they are no longer visible.作者: Interlocking 時(shí)間: 2025-3-28 16:09
Globular Star Clusters,en Sawyer developed a classification scheme for globular clusters. The Shapley-Sawyer classifications are numbered with Roman numerals I to XII based on the concentration of stars in the cores of the clusters. Level I clusters have the highest concentration of stars in their cores. Level XII clusters have virtually no concentrated cores.作者: Lice692 時(shí)間: 2025-3-28 19:45 作者: 弄臟 時(shí)間: 2025-3-28 23:58 作者: photopsia 時(shí)間: 2025-3-29 04:42 作者: accordance 時(shí)間: 2025-3-29 08:19 作者: fabricate 時(shí)間: 2025-3-29 13:24 作者: 六個(gè)才偏離 時(shí)間: 2025-3-29 16:36 作者: ASTER 時(shí)間: 2025-3-29 19:51 作者: 自愛 時(shí)間: 2025-3-30 02:16 作者: insincerity 時(shí)間: 2025-3-30 04:32 作者: 圣人 時(shí)間: 2025-3-30 10:23
Book 2024osed to Hubble, James Webb, or multi-meter mountain top observatories, show amateur astronomers and hobbyists what can be accomplished by using modest and affordable equipment. The book begins with a primer on telescopes and the myriad types on the market today. You‘ll read about why there are so ma作者: 正面 時(shí)間: 2025-3-30 13:07 作者: Glossy 時(shí)間: 2025-3-30 16:32 作者: indecipherable 時(shí)間: 2025-3-30 23:02 作者: institute 時(shí)間: 2025-3-31 04:43
