What to do with faint galaxies
We’ve received a number of questions on Talk about what to do with faint galaxies, like this one:
Galaxies like this one are not stars or artifacts, they are just veeeery faint, so faint that even a telescope as powerful as Hubble is stretched to its capabilities to image them. When you do see such a faint galaxy, please just answer the questions as best you can. In this case, I’d call this one “smooth”.
Don’t worry about the pixellation. The Wide Field Camera 3 infrared pixels are larger than those of Hubble’s optical camera, but the resolution is still very high. So, even though you see pixels in the image of the galaxy above, it’s actually well resolved. It just happens to be smooth and featureless…
So, what about this one?
Can you see features despite the noise, or is it smooth? It’s your call. Remember, most of these galaxies haven’t been seen before by humans, so there’s no right or wrong answer. Just do your best!
- RT @AstroMelina: The project @galaxyzoo 3D needs 8,000 drawings of spiral arms to reach 100,000 drawings by volunteers. You can help here… 4 days ago
- RT @vrooje: Well done fellow @galaxyzoo team members (including our awesome volunteers)! twitter.com/BadAstronomer/… 4 days ago
- RT @AstroMelina: On Sunday I did submit this object with 9 observations (other 5 are from 2015-02-19) to the MPC. A @galaxyzoo volunteer di… 5 days ago
- Results from your classifications in the news today. :) twitter.com/royalastrosoc/… 6 days ago
- RT @AstroMelina: Galaxy Zoo: 3D did reach 90,000 drawings. 🎉 Only 21,000 drawings until the project reaches 100%. Here the a very symmetri… 1 week ago