psychohistorian.org
Category: Astronomy
A list of all the free astronomy resources available for download.
| Download | Type | Description |
| Discover! | star charts | Naked-eye and binocular workbook and star charts. Deep sky observing checklist. 33 pages. 25 star charts. Version 2.0, 2008 August. High-resolution PDF file, 7.31 Meg. |
| Discover! | star charts | Naked-eye and binocular workbook and star charts. Deep sky observing checklist. 33 pages. 25 star charts. Version 1.9, 2006 January. Low-resolution PDF file, 1.31 Meg. |
| Deep Sky Observer's Companion | tutorial | Comprehensive deep sky observing tutorial. 49 pages. Updated 2007 January 04. PDF file, 0.66 Meg • Current version online |
| Deep Sky Explorer's Atlas – Charts | star charts | Star charts for the southern skies. Consists of 30 wide-field star charts, from the south pole to declination +45°, showing all stars down to 8th magnitude. 30 A3-sized star charts. Version 0.20, 2009 January. PDF file, 13.70 Meg |
| Deep Sky Explorer's Atlas – Manual | star charts | Reference manual to accompany the Atlas. 71 pages. Version 0.20, 2009 January. PDF file, 1.05 Meg |
| Southern Star Wheel | star charts | Novel planisphere with interchangeable star disks. 6 pages. 4 star disks. Version 8.1. PDF file, 1.79 Meg |
| EyePics: Volume 1 – The Moon | moon charts | Eyepiece diagrams of the Moon for outreach. Seven charts of the Moon, drawn at half-day intervals, starting with a 2.5 day old Moon. Prominent features are shown in a zoomed-in view on the facing page. 18 pages. Version 0.13, 2009 January. PDF file, 1.29 Meg |
| Top 100 Deep Sky Objects (MS-Word) | observing list | The best 100 southern deep sky objects. Text file. Word file, 0.57 Meg |
| Top 100 Deep Sky Objects (MS-Excel) | observing list | The best 100 southern deep sky objects. MS-Excel spread sheet. XLS file, 39 K |
| Top 100 Deep Sky Objects (dat file) | observing list | The best 100 southern deep sky objects. Cartes-du-Ciel data file. ZIP file, 9 K |
| Southern Sky Almanack 2009 | sky diary | The Almanack summarizes astronomica phenomena in 2009 and is intended to be used by astronomy enthusiasts, be they total novices, experienced observers, or astronomy popularizers. 26 pages. Version 2.8. PDF file, 0.71 Meg |
| IYA 2009 poster – English | poster | "The Universe. Yours to Discover" poster, text in English. Suitable for high-quality printing. One A3-sized page. PDF file, 55 K |
| IYA 2009 poster – Afrikaans | poster | "The Universe. Yours to Discover" poster, text in Afrikaans. Suitable for high-quality printing. One A3-sized page. PDF file, 55 K |
| IYA 2009 poster – Xhosa | poster | "The Universe. Yours to Discover" poster, text in Xhosa. Suitable for high-quality printing. One A3-sized page. PDF file, 58 K |
| Our Sun | poster | Four photos of the solar disk, three of the surface, table of basic facts. Poster 001.2. PDF file, 1.4 Meg |
| Earth amongst the stars | poster | Orbit of the Earth around the Sun, zodiac constellations in the background. Poster 002.6. PDF file, 0.73 Meg |
| Earth's axial tilt | poster | Earth, axial tilt, atmosphere, attentuation of sunlight vs. latitude. Poster 003.2. PDF file, 0.64 Meg |
| Moon phases | poster | Moon in orbit around the Earth, Sun. Poster 005.5. PDF file, 1.1 Meg |
| (cutouts for Moon phases poster) | poster | Four lunar phase images, Earth globe with rotation marks. Cut out these images and attach them to the "Moon phases" poster at the appropriate position as you explain the Moon's changing appearance. Poster 005.5-cutouts. PDF file, 0.71 Meg |
| Eclipses | poster | View from outer space of Earth-Moon-Sun, and shadows. Poster 007.b3. PDF file, 0.62 Meg |
| Earth satellites | poster | Earth, day/night, satellite in orbit, changing visibility. Poster 008.1. PDF file, 0.87 Meg |
| Space Exploration | poster | 11 space craft (two fictional) . Poster 008.6. PDF file, 1.8 Meg |
| Space in South Africa | poster | Space science & space technology in South Africa. (Adapted from a presentation by Dr Peter Martinez, SAAO) . Poster 008.b1. PDF file, 0.84 Meg |
| Solar System (orbits) | poster | Orbits of the planets and dwarf planets to scale; inclinations; names of known moons. Poster 009.9. PDF file, 0.10 Meg |
| Solar System (planets) | poster | Images of the planets and dwarf planets, to scale. Poster 010a.11. PDF file, 0.62 Meg |
| Solar System (Sun & planets) | poster | Images of the Sun, planets and dwarf planets, to scale. Poster 010b.11. PDF file, 0.99 Meg |
| Solar system fact sheet | poster | Table of basic information on the solar system (A3-size) . Poster 011.3. PDF file, 0.34 Meg |
| Galaxies | poster | Montage of galaxies – spirals, barred spirals, irregular, interacting, edge-on. Very pretty. Poster 103.2. PDF file, 2.1 Meg |
| Milky Way | poster | Milky Way, arms, constellations, disk/halo, etc. Lots to work with here. Poster 105.8. PDF file, 0.54 Meg |
| Nebulae | poster | Montage of bright & dark nebulae. Very pretty. Poster 107.1. PDF file, 1.2 Meg |
| Star clusters | poster | Montage of open and globular clusters. Very pretty. Poster 108.1. PDF file, 1.8 Meg |
| Star sizes | poster | Stars drawn to scale – Proxima Cen, Sun, Achernar, Canopus, gamma Crucis, VY CMa, etc. Poster 110.3. PDF file, 0.33 Meg |
| Constellations | poster | Constellations as cultural patterns in the night sky. Crux, Mensa, Orion, /Xam legend. Poster 202.8. PDF file, 0.83 Meg |
| Human solar system | poster | Nine A3-sized images of the Sun and planets, clearly labelled. The Sun poster has a table of heliocentric distances, scaled down so that 1 AU = 2 metres. Wonderful outdoor activity, ending with Neptune at 60 metres from the Sun. Diameters of a few stars are given, which can be marked out on the ground with string. Poster 766.1. PDF file, 1.3 Meg |
| Astronomy in South Africa | poster | Major astronomical facilities in southern Africa – SALT, HartRAO, HESS, meerKAT/SKA. Poster 500.5. PDF file, 1.7 Meg |
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