Showing posts with label stars. Show all posts
Showing posts with label stars. Show all posts

Friday, 24 January 2020

DESKTOP 2367 - SOUTHERN CROSS

Crux is a constellation centred on four stars in the southern sky in a bright portion of the Milky Way. It is among the most easily distinguished constellations as its hallmark stars each have an apparent visual magnitude brighter than +2.8, even though it is the smallest of all 88 modern constellations. Its name is Latin for cross, and it is dominated by a cross-shaped or kite-like asterism that is commonly known as the Southern Cross.

This post is part of the Skywatch Friday meme.

Wednesday, 29 May 2019

DESKTOP 2127 - UNIVERSE

Universe | ˈjuːnɪvəːs | noun
1 (The universe) all existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.
2 A particular sphere of activity or experience: The front parlour was the hub of her universe.
3 (Logic also universe of discourse) another term for universal set.
ORIGIN 
Late Middle English: from Old French univers or Latin universum, neuter of universus ‘combined into one, whole’, from uni- ‘one’ + versus ‘turned’ (past participle of vertere).

This post is part of the Wordless Wednesday meme,
and also part of the ABC Wednesday meme,
and also part of the Nature Notes meme.

Friday, 8 June 2018

DESKTOP 1773 - EVENING STAR

Venus is the second planet from the Sun, orbiting it every 224.7 Earth days. It has the longest rotation period (243 days) of any planet in the Solar System and rotates in the opposite direction to most other planets (meaning the Sun would rise in the west and set in the east). It does not have any natural satellites. It is named after the Roman goddess of love and beauty. It is the second-brightest natural object in the night sky after the Moon, reaching an apparent magnitude of −4.6, bright enough to cast shadows at night and, rarely, visible to the naked eye in broad daylight. Orbiting within Earth's orbit, Venus is an inferior planet and never appears to venture far from the Sun; its maximum angular distance from the Sun (elongation) is 47.8°.

As one of the brightest objects in the sky, Venus has been a major fixture in human culture for as long as records have existed. It has been made sacred to gods of many cultures, and has been a prime inspiration for writers and poets as the morning star and evening star. Venus was the first planet to have its motions plotted across the sky, as early as the second millennium BC.

This post is part of the Skywatch Friday meme,
and also part of the Friday Photo Journal meme.