22 Maret 2017

Pesona Cantik Galaksi di alam semsesta

Messier 78 (a reflection nebula in Orion)
This new image of the reflection nebula Messier 78 was captured using the Wide Field Imager camera on the MPG/ESO 2.2-metre telescope at the La Silla Observatory, Chile. This colour picture was created from many monochrome exposures taken through blue, yellow/green and red filters, supplemented by exposures through a filter that isolates light from glowing hydrogen gas. The total exposure times were 9, 9, 17.5 and 15.5 minutes per filter, respectively.

ESO’s VLT reveals the Carina Nebula's hidden secrets
This broad image of the Carina Nebula, a region of massive star formation in the southern skies, was taken in infrared light using the HAWK-I camera on ESO’s Very Large Telescope. Many previously hidden features, scattered across a spectacular celestial landscape of gas, dust and young stars, have emerged.

The Eagle Nebula
Three-colour composite mosaic image of the Eagle Nebula (Messier 16, or NGC 6611), based on images obtained with the Wide-Field Imager camera on the MPG/ESO 2.2-metre telescope at the La Silla Observatory. At the centre, the so-called “Pillars of Creation” can be seen. This wide-field image shows not only the central pillars, but also several others in the same star-forming region, as well as a huge number of stars in front of, in, or behind the Eagle Nebula. The cluster of bright stars to the upper right is NGC 6611, home to the massive and hot stars that illuminate the pillars. The “Spire” — another large pillar — is in the middle left of the image.
This image is a composite of 3 filters in the visible range: B (blue), V (green) and R (red).

The Eagle's EGGs
Messier 16 (M16), also known as the Eagle Nebula, is located in the southern constellation of Serpens (the Snake).
Using the infrared multi-mode ISAAC instrument on the 8.2-m VLT ANTU telescope, European astronomers were able to image the Eagle Nebula at near-infrared wavelength. The ISAAC near-infrared images cover a 9 x 9 arcminutes region, in three broad-band colours and with sufficient sensitivity to detect young stars of all masses and — most importantly — with an image sharpness as good as 0.35 arcseconds.
The wide-field view of M16 shows that there is much happening in the region. The first impression one gets is of an enormous number of stars. Those which are blue in the infrared image are either members of the young NGC 6611 cluster — whose massive stars are concentrated in the upper right (north west) part of the field — or foreground stars which happen to lie along the line of sight towards M16.
Most of the stars are fainter and more yellow. They are ordinary stars behind M16, along the line of sight through the galactic bulge, and are seen through the molecular clouds out of which NGC 6611 formed. Some very red stars are also seen: these are either very young and embedded in gas and dust clouds, or just brighter stars in the background shining through them.
This photo is the result of a three-colour composite mosaic image of the Eagle Nebula (Messier 16), based on 144 individual images obtained with the infrared multi-mode instrument ISAAC on the ESO Very Large Telescope (VLT) at the Paranal Observatory. At the centre, the so-called "Pillars of Creation" can be seen. This wide-field infrared image shows not only the central three pillars but also several others in the same star-forming region, as well as a huge number of stars in front of, in, or behind the Eagle Nebula. The cluster of bright blue stars to the upper right is NGC 6611, home to the massive and hot stars that illuminate the pillars.
Technical information: This image was made using the near-infrared camera ISAAC on the ESO 8.2-m VLT ANTU telescope on April 8 and May 8 - 10, 2001. The full field measures approximately 9.1 x 9.1 arcmin, covering roughly 17 x 17 light-years (5.3 x 5.3 pc) at the distance to the region (about 6,500 light-years or 2 kpc). This required a 16-position mosaic (4 x 4 grid) of ISAAC pointings : at each pointing, a series of images were taken in each of the near-infrared J s - (centred at 1.24 µm wavelength), H- (1.65µm), and K s - (2.16 µm) bands. North is up and East left.
The total integration time for each pixel in the mosaic was 1200, 300, and 300 seconds in the central 4.5 x 4.5 arcmin region, and 200, 50, and 50 seconds in the outer part, in J s -, H-, and K s - bands, respectively. The seeing FWHM (full width at half maximum) was excellent, at 0.38, 0.36, and 0.33 arcsec in J s, H, and K s, respectively. Point sources are detected in the central region at the 3-sigma level (brightest pixel above background noise) at 22.6, 21.3, and 20.4 magnitudes in J s, H, and K s, respectively. These limits imply that a 1 million year old, 0.075 solar-mass object on the star/brown dwarf boundary could be detected in M16 through roughly 15, 20, and 30 magnitudes of visual extinction at J s, H, and K s, respectively.
After removal of instrumental signatures and the bright infrared sky background, all frames in a given band were carefully aligned and adjusted to form a seamless mosaic. The three monochromatic mosaics were then scaled to the cube root of their intensities to reduce the enormous dynamic range and enhance faint nebular features. The mosaics were then combined to create the colour-coded image, with the J s -band being rendered as blue, the H-band as green, and the K s -band as red. A total of 144 individual 1024 x 1024 pixel ISAAC images were merged to form this mosaic.

The Crab Nebula in Taurus
This photo shows a three colour composite of the well-known Crab Nebula (also known as Messier 1), as observed with the FORS2 instrument in imaging mode in the morning of November 10, 1999. It is the remnant of a supernova explosion at a distance of about 6,000 light-years, observed almost 1,000 years ago, in the year 1054. It contains a neutron star near its center that spins 30 times per second around its axis (see below).
In this picture, the green light is predominantly produced by hydrogen emission from material ejected by the star that exploded. The blue light is predominantly emitted by very high-energy ("relativistic") electrons that spiral in a large-scale magnetic field (so-called synchrotron emission). It is believed that these electrons are continuously accelerated and ejected by the rapidly spinning neutron star at the centre of the nebula and which is the remnant core of the exploded star. This pulsar has been identified with the lower/right of the two close stars near the geometric center of the nebula, immediately left of the small arc-like feature, best seen in ESO Press Photo eso9948. Technical information: ESO Press Photo eso9948 is based on a composite of three images taken through three different optical filters: B (429 nm; FWHM 88 nm; 5 min; here rendered as blue), R (657 nm; FWHM 150 nm; 1 min; green) and S II (673 nm; FWHM 6 nm; 5 min; red) during periods of 0.65 arcsec (R, S II) and 0.80 (B) seeing, respectively. The field shown measures 6.8 x 6.8 arcminutes and the images were recorded in frames of 2048 x 2048 pixels, each measuring 0.2 arcseconds. North is up; East is left.
Sumber : ESO


15 Maret 2017

Unduh : Multimedia Fisika

Multimedia fisika merupakan media TIK fisika dalam pembahasan fisika dalam pokok materi pokok seperti flashusaha dan energi, flash teori kinetik gas, flash termodinamika, flash hukum Newton dan masih banyak lagi, dengan tujuan untuk memudahkan pemahaman materi secara keseluruhan. Dibuat dengan peristiwa yang sebenarnya seperti peristiwa sehari-hari. Berikut model-model flash media tersebut, berikut preview pada :
Efek Doppler

  • Alat Ukur Listrik <> Arus dan Tegangan AC
  • Dinamika Gerak <> Energi Mekanik
  • Gerak Lurus Berubah Beraturan(GLBB)
  • Gerak Melingkar <> Jangka Sorong
  • Kapasitor <> Kesetimbangan Benda Tegar
  • Listrik Statis <> Listrik Statis
  • Model Atom Bohr <> Momentum Linier
  • Momentum Sudut <> Pemuaian
  • Perambatan Kalor <> Radiasi Benda Hitam
  • Radio Aktif <> Reaksi Inti
  • Teori Kinetik Gas <> Teropong
  • Titik Berat <> Transistor <> Tumbukan
  • 14 Maret 2017

    Unduh : Media Flash Optik

    Dalam Kegiatan belajar mengajar dibutuhkan berbagai macam perangkat untuk mencapai tujuan pembelajaran, baik buku penunjang pembelajaran, media pembelajaran juga perangkat lain yang langsung dikerjakan oleh bapak/ibu guru, atau evaluasi penilaian hasil kerja siswa. Dalam proses pembelajaran, dibutuhkan pembuktian fakta sehingga media yang sangat besar dapat diganti dengan media yang sesuai termasuk media flash. Dibawah ini adalah media Flash Optika Geometrik, semoga bermanfaat dan mudah cara penggunaannnya :
     Hyperopia
  • Model 1 <> Model 2 <> Model 3 <> Model 4
  • Myopia
  • Model 1 <> Model 2 <> Model 3 <> Model 4
  • Mikroskop
  • Model 1 <> Model 2 <> Model 3
  • Kamera
  • Model 1 <> Model 2 <> Model 3 
  • Model 4 <> Model 5
  • Anatomi mata <> Cacat mata <> Kondisi Mata
  • Mata usia <> Lensa mata <> Mata normal
  • Mata akomodasi <> Mata punctum proksimum
  • Astiguimaus <> Presbyopia <> Titik dekat mata
  • Hukum snellius
  • Model 1 <> Model 2 
  • Pemantulan dan pembiasan
  • Model 1 <> Model 2 <> Model 3 <> Model 4
  • Model 5 <> Model 6 <> Model 6 <> Model 7
  • Model 8
  • Prisma
  • Model 1 <> Model 2 <> Model 3
  • Lensa Cembung dan Cekung
  • Model 1 <> Model 2 <> Model 3 
  • Model 4 <> Model 5 <> Model 6
  • Model 6 <> Model 7 <> Model 8
  • Cermin Cekung dan Cembung
  • Model 1 <> Model 2 <> Model 3
  • Model 4 <> Model 5
  • Cermin Datar
  • Model 1 <> Model 2 <> Model 3
  • Model 4 <> Model 5
  • Percobaan cermin dan lensa <> Sudut kritis
  • Fokus lensa bekonfak <> Fokus lensa bikonvek
  • Percobaan lensa <> Simulasi lensa
  • Unduh : Media Flash Listrik AC dan DC

    Dalam Kegiatan belajar mengajar dibutuhkan berbagai macam perangkat untuk mencapai tujuan pembelajaran, baik buku penunjang pembelajaran, media pembelajaran juga perangkat lain yang langsung dikerjakan oleh bapak/ibu guru, atau evaluasi penilaian hasil kerja siswa. Dalam proses pembelajaran, dibutuhkan pembuktian fakta sehingga media yang sangat besar dapat diganti dengan media yang sesuai termasuk media flash. Dibawah ini adalah media Flash Listrik Arus Bolak Balik (AC), semoga bermanfaat dan mudah cara penggunaannnya : 
    Listrik arus bolak balik (AC)

  • Arus Dan Tegangan Sefase (R)
  • Grafik Gaya Gerak Listrik(Ggl)Terhadap Waktu
  • Grafik V Dan I Pada Induktor <> Grafik V Dan I Pada Kapasitor
  • Grafik V Dan I Pada Rangkaian Rc 
  • Grafik V Dan I Pada Rangkaian Rl
  • Rangkaian Hambatan AC <> Rangkaian Hambatan Dan Induktor
  • Rangkaian Hambatan Dan Kapasitor <> Rangkaian Induktor 
  • Rangkaian Kapasitor <> Simulasi Diagram Fasor
  • Simulasi Osiloskop <> Skala Osiloskop
  • Listrik arus searah(DC)
  • Arah Arus Listrik <> Arus Listrik Dc <> Arus Pada Baterai
  • Battery Player <> Energi Dan Daya Listrik <> Gambar Arus Analogi
  • Grafik Tegangan Dan Arus <> Hambatan Pararel
  • Hambatan Seri Dan Parelel <> Hambatan Seri <> Hukum I Kirchoff
  • Hukum I Kirchoff <> Insulator Charge <> Jembatan Weatstone
  • Jembatan Weatstone <> Jembatan Weatstone
  • Jembatan Weatstone <> Jembatan Weatstone
  • Kuat Arus Rangkaian Paralel <> Kuat Arus Rangkaian Seri
  • Parallel Waterflow <> Rangkaian Loop <> Rangkaian Paralel
  • Rangkaian Seri Dan Paralel Resistor <> Rangkaian Seri Dan Paralel
  • Rangkaian Seri <> Resistor Seri Dan Paralel <> Saklar
  • Sel Solar <> Seri Waterflow <> Simulasi Jembatan-Weatstone
  • Simulasi Rangkaian Parallel <> Simulasi Rangkaian Parallel
  • Simulasi Rangkaian Parallel <> Simulasi Rangkaian Seri
  • Simulasi Rangkaian Seri <> Tegangan Paralel <> Tegangan Seri
  • Unduh : Flash Gelombang

    Gelombang adalah energi yang merambat pada suatu medium baik pada zat cair, zat padat dan gas. Untuk memudahkan kita dalam menerima suatu konsep dibutuhkan media salah satunya media TIK yaitu flash sebagai media objek bergerak dengan tujuan objek-objek besar dapat dilakukan dikelas dengan media tersebut, berikut media yang berkaitan dengan gelombang.
    Gelombang Dua Simpul


  • Arah gelombang <> Dentuman
  • Efek Doppler
  • model 1 <> model 2 <> model 3 <> model 4
  • model 5 <> model 6 <> model 7
  • Gelombang dua simpul
  • model 1 <> model 2 <> Gelombang elektromagnetik
  • Gelombang Longitudinal
  • model 1 <> model 2 <> model 3 <> model 4
  • Gelombang Stasioner
  • model 1 <> model 2 <> model 3 <> model 4
  • model 5 <> model 6 <> model 7
  • Gelombang tranversal
  • model 1 <> model 2 <> model 3 <> model 4
  • model 5 <> model 6 <> model 7 <> model 8
  • Gerak Gelombang
  • model 1 <> model 2 <> model 3
  • model 4 <> Model 5
  • Interferensi gelombang
  • model 1 <> model 2 <> model 3 <> model 4
  • model 5 <> model 6 <> model 7
  • Karakteristik gelombang <> Kecepatan gelombang bunyi
  • Panjang gelombang
  • model 1 <> model 2 <> model 3
  • Persamaan gelombang berjalan
  • Rambatan gelombang dua medium
  • Simulasi gel transversal dan longitudinal
  • Spektrum gel. elektromagnetik
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