Starship Asterisk*

orin stepanek wrote: ↑Sun Aug 23, 2020 12:18 pm helix_blancoHubble_1080.jpg


Frank Sinatra 'Ol Blue Eyes

<sigh> Nothing about this looks like a helix to me, unless we're looking end-on, in which case the helix nature would be obscured. An Eye? Sure! But no helix.

I'm trying but all I get is a headache. Is the goal to have the two images merge visually? Focus off in the distance first? Does it matter what size the images are? How far away should the images be? (I can view Magic Eye images just fine.) Magic Eye images give me a headache The presented image ar...

Not my preferred way of viewing 3D images, either. Here's the image decomposed into stereo pairs. _ Cross eyed: mars10_st_path_crossed.jpg _ Parallel eyed: mars10_st_path_straight.jpg So are these supposed to be viewable in 3D somehow with or without special glasses? I can't manage to do it (though...

I won't mince words here. I used to have red/blue glasses. I didn't like looking through them. They gave me a bit of a headache. I've lost my red/blue glasses, and I don't miss them. I'm unhappy with APODs that require red/blue glasses. Not my preferred way of viewing 3D images, either. Here's the ...

Hi all, I did also some unwinding of different other galaxies. I posted it a year ago here: https://asterisk.apod.com/viewtopic.php?f=8&t=39558&p=293173#p293173 And here is my collection of unwinded spiral galaxies and also some planetary nebulae: https://drive.google.com/drive/folders/1IS1...

BDanielMayfield wrote: ↑Fri Aug 21, 2020 10:30 pm The above post was great johnnydeep, except for, GASP,

Also, who are Robert Nemiroff and Jerry Bonnell?

Look at the third line below each and every day's APOD explanation.

Ah. I never look down there!

Consensus speaks. The "whys?" have it. FWIW, I emailed Paul Howell <phowell@bowdoin.edu> from the Unwinding attribution on the image and he replied as follows: I suppose at a certain level your question would be better answered by Robert Nemiroff and Jerry Bonnell. Taking a stab at it, I ...

I am sorry, but I don't understand this... how does duplicating parts of the spiral arms, in a straight pattern... alternating the "brushes" like in a paint program to show 6-7 pointed "arms"... "unwind" a galaxy with only 2 spiral arms....yet is overlayed on a 2nd gal...

https://upload.wikimedia.org/wikipedia/commons/thumb/2/23/Blue_Marble_2002.png/1280px-Blue_Marble_2002.png Why are parts of the image of "unwinding M51" so blurry (in the lower part of the image)? I don't think that the original Hubble image was so blurry. Think of an equirectangular proj...

<<The total number of particles carried away from the Sun by the solar wind is about 1.3×10 36 per second. Thus, the total mass loss each year is about (2–3)×10 −14 solar masses, or about 1.3–1.9 Mt/s . This is equivalent to losing a mass equal to the Earth every 150 million years.>> <<Coronal mass...

This is a fantastic image, which I think will be regarded as an historic accomplishment in astronomy. Way to go, ESO! Thanks for posting it. Also, there is so much good information in the linked articles, I hope I have enough time to go read them in the next few days. Thanks, RJN ! I'm always amuse...

The system orbiting TYC 8998-760-1 is very different than ours. There are two giant exoplanets orbiting the star. The ESO Very Large Telescope photographed the two planets using its SPHERE instrument, producing the first direct image of multiple planets orbiting a Sun-like star.[1][6] TYC 8998-760-...

Our civilization has recently detected the Higgs boson, and determined its mass to be 125 GeV. My question: in our Galaxy, how many other civilizations have ever done the same? (Anyone care to speculate ? ) Maybe those guys who keep visiting???.... um... SINCE we are speculating....and it is not &q...

TYC8998_ESO_960.jpg To travel between stars? I'm horrified by the distance! I'm not ready to believe in interstellar travel! Nice to dream about though. 8-) I agree wholeheartedly, Orin! Ann With which part(s)? Being horrified by the distance; not yet believing in the possibility of interstellar tr...

I see two apparent trails that don't point like the others: in fact, they are almost perpendicular to the other trails. Are they also Perseids, or perhaps something else, like satellites? Perseid Trails or Something Else. On my peak night, the camera caught 150 meteors total. 116 Perseids 21 Alpha ...

https://apod.nasa.gov/apod/calendar/S_200817.jpg Perseids Around the Milky Way Explanation: Why would meteor trails appear curved? The arcing effect arises only because the image artificially compresses (nearly) the whole sky into a rectangle . The meteors are from the Perseid Meteor Shower that pe...

https://apod.nasa.gov/apod/calendar/S_200816.jpg NGC 6814: Grand Design Spiral Galaxy from Hubble Explanation: In the center of this serene stellar swirl is likely a harrowing black-hole beast. The surrounding swirl sweeps around billions of stars which are highlighted by the brightest and bluest. ...

A random question on today's Grand Design Galaxy is this: How far into the yellow color of this black hole would a normal star survive? And could that star be such that it still maintained planets -- if it had any to begin with? it is easy to imagine those stars in the arms as normal, but once a st...

Chris Peterson wrote: ↑Sat Aug 15, 2020 3:01 pm

Cousin Ricky wrote: ↑Sat Aug 15, 2020 2:59 pm An alliterative osculation!

Mars Meets the Moon's Margin.

Yes - nice!

Also, Minuscule Mars Meets the Mighty Moon's Margin.

https://apod.nasa.gov/apod/calendar/S_200814.jpg NGC 5189: An Unusually Complex Planetary Nebula Explanation: Why is this nebula so complex? When a star like our Sun is dying, it will cast off its outer layers, usually into a simple overall shape. Sometimes this shape is a sphere , sometimes a doub...

https://apod.nasa.gov/apod/calendar/S_200814.jpg NGC 5189: An Unusually Complex Planetary Nebula Explanation: Why is this nebula so complex? When a star like our Sun is dying, it will cast off its outer layers, usually into a simple overall shape. Sometimes this shape is a sphere , sometimes a doub...

Tszabeau wrote: ↑Wed Aug 12, 2020 1:22 pm Very interesting and informative. I wonder what the point at which those lines, if extended, would cross might be called or signify?

Hmm. My first thought is that all the lines would intersect at the sun itself. But I'm not very sure of that.

You're looking at about 12,000 km of the surface. Think a coin on a soccer ball. I don't understand. The diameter of Jupiter is 140,000 km. The pic seems to shows the full width of Jupiter, that is, we see both "sides". Oh, wait - light brightening as I write this - is it because we are s...

Is that a nearly polar view? Those clouds look nothing like bands you see near the equator. You're looking at about 12,000 km of the surface. Think a coin on a soccer ball. I don't understand. The diameter of Jupiter is 140,000 km. The pic seems to shows the full width of Jupiter, that is, we see b...

Is that a nearly polar view? Those clouds look nothing like bands you see near the equator. You're looking at about 12,000 km of the surface. Think a coin on a soccer ball. I don't understand. The diameter of Jupiter is 140,000 km. The pic seems to shows the full width of Jupiter, that is, we see b...