Firefly Planisphere pdf epub mobi txt 电子书下载 2024

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Firefly Books

Firefly Books Ltd

2009-8

$ 22.54

Pap

9781552978535

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发表于2024-07-21

Firefly Planisphere epub 下载 mobi 下载 pdf 下载 txt 电子书下载 2024

Firefly Planisphere pdf epub mobi txt 电子书下载 2024

图书描述

"A valuable tool for novice and advanced stargazers." The 11 3/8 inch Firefly Planisphere is an affordable, practical tool for accurately locating night sky phenomena in the Northern Hemisphere at any time of the year -- and is now updated to include planetary tables from 2007 up to and including 2014 Charted by the month, day, hour and minute, it gives quick help on locating celestial wonders such as: Planets Stars Constellations Globular clusters Nebulae Galaxies The easy to use Firefly Planisphere features: Icons that describe star magnitudes from O to 1 (large) to 4(small). The larger the symbol, the brighter the star -making it easy to locate specific stars. Updated planetary tables with at-a-glance coordinates for locating the brightest objects in the sky until 2014. Times of sunrise and sunset for each day. An easy-to-read instructional guide describes how to use the planisphere. Both the planisphere and the guide are packaged in a protective plastic envelope.

Firefly Planisphere 下载 mobi epub pdf txt 电子书