Search found 77 matches

by Hofi
Thu May 13, 2010 5:32 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Magnificent Horsehead Nebula (2010 May 13)
Replies: 23
Views: 3413

Re: APOD: The Magnificent Horsehead Nebula (2010 May 13)

A really great picture!

I wonder why and how it is that the area bottom-left of the horsehead is sharper than the rest. Does anyone of you have any ideas?
by Hofi
Wed May 12, 2010 3:21 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: M72: A Globular Cluster of Stars (2010 May 12)
Replies: 21
Views: 4232

Re: APOD: M72: A Globular Cluster of Stars (2010 May 12)

owlice wrote:
Hofi wrote:Great image! I like the background galaxies most! There are really nice edge-on ones!
There are also some lovely spirals!
You are right! If you have a close look, you can even see some background nebulae! ... Really great stuff!
by Hofi
Wed May 12, 2010 1:41 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: M72: A Globular Cluster of Stars (2010 May 12)
Replies: 21
Views: 4232

Re: APOD: M72: A Globular Cluster of Stars (2010 May 12)

I was wondering some of the same things that tesla (above) mentioned. What is different in the gravitational forces that cause some globular clusters to apparently resolve themselves into a disk-like galaxy as our galaxy but others still remain as globular clusters? What kind of rotational motions ...
by Hofi
Wed May 12, 2010 12:53 pm
Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
Topic: SD: Home Computers Unite to Map the Milky Way
Replies: 9
Views: 3758

Re: MilkyWay@Home

MilkyWay@home sounds a good idea. But I cannot remember to have heard any results from SETI@home and EINSTEIN@home. Does anyone of you know whether there have been results, yet? If the amount of computing power is really so great, there should have been some nice finds.
by Hofi
Wed May 12, 2010 12:49 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: M72: A Globular Cluster of Stars (2010 May 12)
Replies: 21
Views: 4232

Re: APOD: M72: A Globular Cluster of Stars (2010 May 12)

Great image! I like the background galaxies most! There are really nice edge-on ones!

Does anyone of you know what these orange to red dots are that appear all over the image?
by Hofi
Sun May 09, 2010 1:24 pm
Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
Topic: ROG: Join the hunt for solar storms
Replies: 7
Views: 2932

Re: Solar Stormwatch

I love it, I feel like im working for NASA or something and doing my little bit to help the heroes in space. Many people do so. ... And you are! ... I like the Galaxy Zoo Hubble images best. Something curious: When they started Galaxy Zoo some years ago, they got three minutes on BBC to present the...
by Hofi
Sun May 09, 2010 1:16 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Moons of our Solar System
Replies: 102
Views: 18235

Re: Moons of our Solar System

I like this images of Saturn's moons and the gravitational influenced turbulences of the rings. I would be glad to see such an image as an APOD! :D
by Hofi
Sun May 09, 2010 1:10 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Halo of the Cats Eye (2010 May 09)
Replies: 21
Views: 3895

Re: APOD: Halo of the Cats Eye (2010 May 09)

gravi wrote:if those are false colors what true colors it would be?
You cannot say exactly! Humans would see it gray because the colors are so faint that our eyes would not recognize it.
Just have a look at this website here. It probably will answer your question.
by Hofi
Sun May 09, 2010 6:00 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Halo of the Cats Eye (2010 May 09)
Replies: 21
Views: 3895

Re: APOD: Halo of the Cats Eye (2010 May 09)

Congratulations to this beautiful immage! I really like it.
Currently, I have the Cat's Eye Nebular by Hubble hanging in my room. But I deliberate to change it into this one!
by Hofi
Sat May 08, 2010 5:02 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: ESA: Herschel reveals the hidden side of star birth
Replies: 9
Views: 1134

Re: ESA: Herschel reveals the hidden side of star birth

Great find, neufer! There are several such objects. Just look at the "North America Nebula" (NGC 7000)! I really like this similarities!
by Hofi
Sat May 08, 2010 4:58 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Atlantis Lift Off (2010 May 08)
Replies: 10
Views: 2095

Re: APOD: Atlantis Lift Off (2010 May 08)

Hi! We all know that there are financial problems nearly all over the world. The shuttle was thought to be cheap because it's reuseable. Indeed, it did not work as planed. That's the reason why the USAF joined the project - because NASA had not the money to pay the expenses. In my opinion, the shutt...
by Hofi
Sat May 08, 2010 12:20 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: HiRISE: New Spotlighted Captioned Images (2010 May 05)
Replies: 2
Views: 243

Re: HiRISE: New Spotlighted Captioned Images (2010 May 05)

WOW!
I like all of these images! They could have been taken on earth.

Viscous Flow in Protonilus Mensae look like there was plate tectonic forming canyons.
by Hofi
Sat May 08, 2010 6:18 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Atlantis Lift Off (2010 May 08)
Replies: 10
Views: 2095

Re: APOD: Atlantis Lift Off (2010 May 08)

I like this photo. It shows the great height difference between the orbiter and the great fuel tank in the background.

I have one question: What are the dark spots left of the yellow retrainer? I don't think they are windows^^
by Hofi
Fri May 07, 2010 6:21 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Antennae (2010 May 07)
Replies: 35
Views: 3213

Re: APOD: The Antennae (2010 May 07)

Last year, there was an eppisode of "Hubble's Universe Unfiltered" which discussed the topic of merging galaxies. There was also an animation which, in my opinion, was quite good.
You can find it here. Hope it helps.
by Hofi
Fri May 07, 2010 1:04 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Antennae (2010 May 07)
Replies: 35
Views: 3213

Re: APOD: The Antennae (2010 May 07)

If this really is the photo of 2 galaxies that have collided, why do the curvatures in the tails become sharper as they collide? It seems the opposite would happen. Since we suppose that the galaxies are attracted to each other due to gravitational forces, the curvature lines should become more str...
by Hofi
Fri May 07, 2010 12:59 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Antennae (2010 May 07)
Replies: 35
Views: 3213

Re: APOD: The Antennae (2010 May 07)

Astronut wrote:Antennae? - not really.
I cannot agree with you. If you rotate the image 180°, the tidal tales look like old TV-antennas (although one is bend a little bit). Of course you need a little bit of creativity to see it.
by Hofi
Fri May 07, 2010 6:56 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Antennae (2010 May 07)
Replies: 35
Views: 3213

Re: APOD: The Antennae (2010 May 07)

I really love this image! It's a great example for how galaxies merge.!!!
How is it that the inner structure is not as blurred as the outher edge?
by Hofi
Thu May 06, 2010 3:26 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Sunset on a Golden Sea (2010 Apr 28)
Replies: 8
Views: 1816

Re: APOD: Sunset on a Golden Sea (2010 Apr 28)

Were the colours made more intense by volcanic dust ? Maybe not. Normally, sunset (and sunrise) colours can be still be very dramatic, especially when the atmosphere is clear and the Sun is viewed very near the horizon, as in this scene. Nonetheless, I would not agree with APOD Robot. I'm living in...
by Hofi
Thu May 06, 2010 3:20 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Faces of Mars (2010 May 05)
Replies: 9
Views: 1852

Re: APOD: The Faces of Mars (2010 May 05)

When I saw the APOD title I thought the subject would be about the landforms on Mars that look a bit like faces. Nice thought! Such an APOD would be great! I have looked up in google and found some astonishing images: klick here . It fascinates me how shaddows and mountain formations can create suc...
by Hofi
Thu May 06, 2010 2:49 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Phobos from Mars Express (2010 Mar 17)
Replies: 53
Views: 23328

Re: APOD: Phobos from Mars Express (2010 Mar 17)

Is it actually better known why the axial tilt is 177.3°? I just have heard that Venus possibly was hit by a huger object. How sure do "we" know that?


(Just because of the discussion on page 1 and 2)
by Hofi
Thu May 06, 2010 2:20 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Northern and Southern Owls (2010 May 06)
Replies: 27
Views: 3766

Re: APOD: Northern and Southern Owls (2010 May 06)

Chris Peterson wrote:from our viewpoint we are looking through more material at the edge
Thanks for the information!

... but why is it that the density at the outer edge are denser? Shouldn't it be that the density decreases to the outside?
by Hofi
Thu May 06, 2010 1:37 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Northern and Southern Owls (2010 May 06)
Replies: 27
Views: 3766

Re: APOD: Northern and Southern Owls (2010 May 06)

The similarity of this nebulae is really astonishing!

While looking at them, a question penetrated into my mind: Why and How is it that the colors at the edge of the nebulae are stronger than in the inner side? Is it because of the higher density of material/gas?
by Hofi
Wed May 05, 2010 2:33 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Favorite APOD
Replies: 208
Views: 3020784

Re: Favorite APOD

Hi!

I will add today's APOD to the list of favourites. The Faces of Mars. I really like the idea of letting children paint the planets. It helps increasing the fascination on the universe. The children of today are the (possible) astronomers of tomorrow!
by Hofi
Wed May 05, 2010 12:53 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Faces of Mars (2010 May 05)
Replies: 9
Views: 1852

Re: APOD: The Faces of Mars (2010 May 05)

I like this idea! And Mars is definitely the best object for such paintings through a telescope. My favourite image is the one by Pierre Desvaux. In my opinion, he got the colors as you would see them through a telescope. There has to be more to Mars than meets the eye when 24 different people look ...
by Hofi
Sun May 02, 2010 10:54 am
Forum: The Library: Information Desk and Educational Resources
Topic: Astronomy Websites
Replies: 51
Views: 1215855

Re: Astronomy Websites

Amir wrote:Thanks a lot Hofi, i was thinking about such a list for a while & i was gonna ask others to write about the website they know & use.
you've collected a great list!
Thanks!