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When Roses Aren't Red 😍 Not all roses are red of course, but they can still be very pretty. Likewise, the beautiful Rosette Nebula and other star forming regions are often shown in astronomical images with a predominately red hue, in part because the dominant emission in the nebula is from hydrogen atoms. Hydrogen's strongest optical emission line, known as H-alpha, is in the red region of the spectrum, but the beauty of an emission nebula need not be appreciated in red light alone. Other atoms in the nebula are also excited by energetic starlight and produce narrow emission lines as well. In this gorgeous view of the Rosette Nebula, narrowband images are combined to show emission from sulfur atoms in red, hydrogen in blue, and oxygen in green. In fact, the scheme of mapping these narrow atomic emission lines into broader colors is adopted in many Hubble images of stellar nurseries. The image spans about 100 light-years in the constellation Monoceros, at the 3,000 light-year estimated distance of the Rosette Nebula. To make the Rosette red, just follow this link or slide your cursor over the image. Image Copyright: Eric Coles #Hubble #Space #Telescope #nasa #space #astronomy #nebula #science

1 0 Feb 23, 2018

Beautiful! from petrhoralek - Flamy skies above the La Silla Observatory / Ohnivé nebe nad observatiří La Silla More: www.astronom.cz/horalek/?p=2015 More photos: www.fb.com/PetrHoralekPhotography #eso #esoobservatory #lasilla #milkyway #gumnebula #orion #barnard #zodiacal #jupiter #telescope #stargazing #astronomy #astrophysics #magellanic #ntt #atacama #airglow #sirius #gegenschein #nebula #hII #hydrogen #mléčnádráha #mlhovina #canonphotography #nočníobloha #hvězdy #vesmír #observatoř #astronomie

9 0 Feb 23, 2018

City of stars. Telescope love at Griffith Observatory.

11 1 Feb 23, 2018

My girlfriend and I managed to snap a pic of the moon on our phones through the lens of her telescope. This was harder than you might think. #moon #cratersofthemoon #telescope #space #science #lunar

8 0 Feb 23, 2018

An amateur astronomer testing a new camera happens to catch a supernova as it's being born 🇦🇷 #Argentina #SuperNova #Galaxy #Space #Telescope #Nasa #UnlimitedNews #News #Science

2 0 Feb 23, 2018

Meu brother ayrlanmds, vc acertou no ângulo dessas fotos! Muito massa! 🤝 Mas não tem jeito! O crédito final sem dúvida vai para o Criador! 👌🏾 #fotosiradas #telescope #moon #luadesangue #fotografia

16 2 Feb 23, 2018

This is a 6 panel mosaic of AR2699. I don’t usually post monochrome images of the sun but this one seemed to have a lot more detail and contrast in B&W Taken on 2-11-18 Taken with a Explore scientific ar152mm, Daystar quark, asi174mm camera. #sun #solar #explorescientific #daystarfilters #daystar #space #solartelescope #solarsystem #solarprominence #solarflare #sunspot #Sunflare #sunfilter #universetoday #stars #star #telescope #telescopes #losmandy #loves_united_astrophotograph #asi174mm #astrophotography #photography #photography #pictures #nikon #sky #skyphotography #youresa #nikon_photography #canonphotography

52 1 Feb 23, 2018

"É errado pensar que a tarefa da física é descobrir como a natureza é. A física trata daquilo que dizemos sobre a natureza." Niels Bohr. Observando essa linda lua pelo telescópio e refletindo sobre sua realidade. 🌗 #somosviajantescosmicos #cosmos #ciência #lua #moon #nasa #telescope #brasil #sorocaba #universo #love #tbt #fisica #aprender #conhecimento #skywatcher

40 1 Feb 23, 2018

M51 - The Whirlpool Galaxy. One of the first pictures I took with my current setup. 1h exposure. #astronomy #astro #astrophotography #dslr #stars #nebula #space #canon #eos60d #meade #space #pixinsight #longexposure #photography #telescope #deepsky #nightsky #deepspace

18 0 Feb 23, 2018

🛰🔭🏙

66 5 Feb 23, 2018

Bulan Fase Kuarter Awal DIY refraktor #moon #moon_awards #indonesia #tegal #tegalhits #telescope #astronomitegal #astrophotography

11 0 Feb 23, 2018

The 46.8% Waxing Crescent Moon this evening. Direction: 163.45° SSE. Altitude: 60.32°. Distance: 232,508 miles. Waiting for sunset and hoping the high thin clouds move away. #moon #luna #moon_of_the_day #moon_awards #aglimpseofthemoon #moonlover #moonlovers #selenophile #moonpic #moonshot #meade #meadeinstruments #meadeetx90 #telescope #solarsystem #moonphoto #astronomy #astrophotography #nightsky #bluesky #moonphotography

27 1 Feb 23, 2018

Not all roses are red of course, but they can still be very pretty. Likewise, the beautiful Rosette Nebula and other star forming regions are often shown in astronomical images with a predominately red hue, in part because the dominant emission in the nebula is from hydrogen atoms. Hydrogen's strongest optical emission line, known as H-alpha, is in the red region of the spectrum, but the beauty of an emission nebula need not be appreciated in red light alone. Other atoms in the nebula are also excited by energetic starlight and produce narrow emission lines as well. In this gorgeous view of the Rosette Nebula, narrowband images are combined to show emission from sulfur atoms in red, hydrogen in blue, and oxygen in green. In fact, the scheme of mapping these narrow atomic emission lines into broader colors is adopted in many Hubble images of stellar nurseries. The image spans about 100 light-years in the constellation Monoceros, at the 3,000 light-year estimated distance of the Rosette Nebula. Credit & Copyright: Eric Coles and Mel Helm #astronomy #astrophysics #astrophotography #universe #cosmos #space #nebula #stars #dust #night #sky #telescope #technology #exploration #science #knowledge #nightsky #cosmology #starstuff

61 0 Feb 23, 2018
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