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#astronomy
Captured over many nights with 25 hours of data, this is the largest mosaic image I could capture with my Vespera II. It contains the Flame Nebula, Horse Head Nebula, Running Man Nebula and the Orion Nebula.
Painstakingly edited in PixInsight using SetiAstro and Xterminator plugins. #astronomy #astrophotography #vespera #vaonis #nebula
"Planet Definitions" by XKCD comic (mirror bots @xkcd @xkcdbot ) - All the definitions of a planet, whether they've earned representation or not. https://xkcd.com/3063/ #astronomy #planetary #asteroid #geology #oops #WTF #humor
![XKCD comic #3063 "Planet Definitions" https://xkcd.com/3063/
explanation from ExplainXKCD https://www.explainxkcd.com/wiki/index.php/3063:_Planet_Definitions
transcript truncated to fit alt-text limit:
[A table with 3 columns, labelled "Definition", "# of planets", and "Solar system". The last row is a drawing of the Solar system, with elements included in the definition of the row colored in green]
Traditionalist: Pluto is a planet
Modern: Pluto is not a planet
Expansive: Dwarf planets are planets
Ultratraditionalist: Only the classical planets are planets
Condescending: Only giant planets are planets; the rest are big asteroids.
Simplistic: Anything gravitationally round is a planet
Grounded: Only objects a spaceship has landed on are planets
Regolithic: Anything covered in dirt and ice and stuff is a planet
Lunar: You can't be a planet if you don't have a moon
Solipsitic: Earth is the only planet
Judgemental: Only the prettiest ones are planets
Empiricist: Only worlds that I, author of this table, have personally seen are planets
Marine biologist: Only objects with oceans are planets
Maritime: Only objects with surface oceans are planets
Universalist: They're all planets
Existantialist: What is space itself is a planet???
Spiteful: Only Pluto is a planet
title/mouseover text: Under the 'has cleared its orbital neighborhood' and 'fuses hydrogen into helium' definitions, thanks to human activities Earth technically no longer qualifies as a planet but DOES count as a star.](https://cdn.masto.host/spaceyspace/media_attachments/files/114/162/831/647/915/361/original/7ed60693432fd815.png "XKCD comic #3063 \"Planet Definitions\" https://xkcd.com/3063/
explanation from ExplainXKCD https://www.explainxkcd.com/wiki/index.php/3063:_Planet_Definitions
transcript truncated to fit alt-text limit:
[A table with 3 columns, labelled \"Definition\", \"# of planets\", and \"Solar system\". The last row is a drawing of the Solar system, with elements included in the definition of the row colored in green]
Traditionalist: Pluto is a planet
Modern: Pluto is not a planet
Expansive: Dwarf planets are planets
Ultratraditionalist: Only the classical planets are planets
Condescending: Only giant planets are planets; the rest are big asteroids.
Simplistic: Anything gravitationally round is a planet
Grounded: Only objects a spaceship has landed on are planets
Regolithic: Anything covered in dirt and ice and stuff is a planet
Lunar: You can't be a planet if you don't have a moon
Solipsitic: Earth is the only planet
Judgemental: Only the prettiest ones are planets
Empiricist: Only worlds that I, author of this table, have personally seen are planets
Marine biologist: Only objects with oceans are planets
Maritime: Only objects with surface oceans are planets
Universalist: They're all planets
Existantialist: What is space itself is a planet???
Spiteful: Only Pluto is a planet
title/mouseover text: Under the 'has cleared its orbital neighborhood' and 'fuses hydrogen into helium' definitions, thanks to human activities Earth technically no longer qualifies as a planet but DOES count as a star.")
And now we interrupt the live streamed horrors of this world with some hardcore astronomy.
Astrum: *Gaia Discovered Hidden Galaxies INSIDE Our Milky Way*
High resolution image of the eclipse seen from the Moon by #BlueGhost. You can also spot Mercury (left) and Venus (right) just above the eclipse! This is amazing!!!
Credit: Firefly Aerospace
Out of this world footage captured from the Moon by the #BlueGhost lander during the solar eclipse.
Credit: Firefly Aerospace
On this date in 1781, William and Caroline Herschel discovered a new “comet”, which turned out to be the planet now known as Uranus. It was the first new planet to be discovered since ancient times. And William Herschel wanted to call it Georgium Sidius (George’s Star) after his patron King George III of England. The things scientists contemplate to get funding…
Illegal in Japan (among other places); 無修正あそこ
∈(‿ • ‿)∋
‘Blood moon’: Photos capture year’s 1st total lunar eclipse
March’s full moon, also called a 'blood moon,' reached peak illumination in the early hours of Friday and was visible from Toronto to Canberra, Australia.
#astronomy #photography #moon #Toronto #Canberra #Australia
https://globalnews.ca/news/11081819/blood-moon-march-2025-photos/
