Red Lagoon

Bad Astronomy
The entire universe in blog form
April 22 2010 7:40 AM

Red Lagoon

When I was a kid, I used to haul my 25 cm 'scope out to the end of the driveway every clear night to observe. In the summer, one of my favorite targets was the Lagoon Nebula: it's bright, easy to find, and even with the frakkin' streetlight I had to peer past, details in the vast gas cloud were easy to spot.

But I kinda wish I had access to a 1.5 meter telescope. Their view is a wee bit better:

Phil Plait Phil Plait

Phil Plait writes Slate’s Bad Astronomy blog and is an astronomer, public speaker, science evangelizer, and author of Death From the Skies!  

Advertisement

eso_lagoon

Wow! Click to embiggen, or grab yourself a ginormous 2000x2000 pixel image if your current desktop is boring. Compared to this, I bet it is. This image of the Lagoon was taken using the European Southern Observatory 1.5 meter Danish telescope in La Silla, Chile. It's actually kinda sorta true color, using filters that mimic the sensitivity of the human eye.

If you could find a nice dark spot away from city lights, the Lagoon is actually bright enough to spot with your unaided eye, which is quite a feat considering it's 40 quadrillion kilometers away -- that's 40,000,000,000,000,000 if you like your zeroes. Even from moderately light-polluted skies it's easy in binoculars.

The Lagoon is one of those giant star-forming regions I've written so much about. And it's big: a hundred light years across, and busily forming lots and lots of stars.

A wider view of it shows why it's such a great target for small telescopes. It's bright, colorful, and has lots of cool swirls and shock waves that accentuate its shape. It's also located between us and the center of the galaxy -- think of it like being towards downtown of a big city when you live in the suburbs -- so that whole area of the sky is lousy with gorgeous, interesting things to see.

That also makes these objects great targets for large telescopes, because then we can see all kinds of incredible details. The more of these we study, the better we understand the environment where stars are born, including the Sun. There's lots of science here... but when I look at images like this, I can't help but think of that poor dorky teenager (me!) struggling mightily to get that giant, heavy telescope positioned just right so he could see a few wisps of gas gazillions of kilometers away.

All I can do is mentally smile and give him a virtual decades-later pat on the back. Keep at it, kid. It'll pay off. I promise.

Image credit: ESO/IDA/Danish 1.5 m/ R. Gendler, U.G. Jørgensen, K. Harpsøe

TODAY IN SLATE

Technocracy

Forget Oculus Rift

This $25 cardboard box turns your phone into an incredibly fun virtual reality experience.

Stop Panicking. America Is Now in Very Good Shape to Respond to the Ebola Crisis.

The 2014 Kansas City Royals Show the Value of Building a Mediocre Baseball Team

The GOP Won’t Win Any Black Votes With Its New “Willie Horton” Ad

Sleater-Kinney Was Once America’s Best Rock Band

Can it be again?

Politics

Smash and Grab

Will competitive Senate contests in Kansas and South Dakota lead to more late-breaking races in future elections?

I Am 25. I Don’t Work at Facebook. My Doctors Want Me to Freeze My Eggs.

These Companies in Japan Are More Than 1,000 Years Old

  News & Politics
The World
Oct. 21 2014 11:40 AM The U.S. Has Spent $7 Billion Fighting the War on Drugs in Afghanistan. It Hasn’t Worked. 
  Business
Business Insider
Oct. 21 2014 11:27 AM There Is Now a Real-life Hoverboard You Can Preorder for $10,000
  Life
Quora
Oct. 21 2014 11:37 AM What Was It Like to Work at the Original Napster?
  Double X
The XX Factor
Oct. 20 2014 6:17 PM I Am 25. I Don't Work at Facebook. My Doctors Want Me to Freeze My Eggs.
  Slate Plus
Tv Club
Oct. 20 2014 7:15 AM The Slate Doctor Who Podcast: Episode 9 A spoiler-filled discussion of "Flatline."
  Arts
Brow Beat
Oct. 21 2014 11:34 AM Germans Really Are More Punctual. Just Ask Angela Merkel.
  Technology
Technology
Oct. 21 2014 10:43 AM Social Networking Didn’t Start at Harvard It really began at a girls’ reform school.
  Health & Science
Climate Desk
Oct. 21 2014 11:53 AM Taking Research for Granted Texas Republican Lamar Smith continues his crusade against independence in science.
  Sports
Sports Nut
Oct. 20 2014 5:09 PM Keepaway, on Three. Ready—Break! On his record-breaking touchdown pass, Peyton Manning couldn’t even leave the celebration to chance.