Starship Asterisk*

Given that something like 85% of high mass stars are part of binary systems, maybe the question to ask is why only 50% of WR stars are binaries? OK, so I ask: Why 85% of high mass stars are part of binary systems? One answer probably has to do with the formation process of high-mass stars. https://...

It is estimated that about 50% of Wolf-Rayet stars occur in binary systems. Proposed companions are another Wolf-Rayet star, or a compact companion such as a black hole or neutron star. There is some evidence for both of these scenarios, but conclusive observations have yet to be obtained. The only...

It is estimated that about 50% of Wolf-Rayet stars occur in binary systems. Proposed companions are another Wolf-Rayet star, or a compact companion such as a black hole or neutron star. There is some evidence for both of these scenarios, but conclusive observations have yet to be obtained. The only...

JimB wrote: ↑Tue May 28, 2024 7:55 am

Rauf wrote: ↑Tue May 28, 2024 7:18 am Is it just me, or is the main APOD link (https://apod.nasa.gov/apod/astropix.html) not working today?

It's not just you. Todays APOD is completely blank - really is "open space"

Well, it's not so blank now!

Is it just me, or is the main APOD link (https://apod.nasa.gov/apod/astropix.html) not working today?

APOD Robot wrote: ↑Sat May 25, 2024 4:07 am Orbiting 400 kilometers above Quebec, Canada, planet Earth, the International Space Station Expedition 59 crew captured this snapshot of the broad St. Lawrence River and curiously circular Lake Manicouagan on April 11.

April 11? Which one? I guess the one in 2019?

APOD Robot wrote: ↑Mon May 20, 2024 4:06 am and processed to heighten the colors and remove electrical wires.

But I can still see those wires!

Chris Peterson wrote: ↑Mon May 13, 2024 1:44 pm

Rauf wrote: ↑Mon May 13, 2024 8:10 am So is it 3664 or 6443?

AR 3664.

Yeah, I see it's now fixed

So is it 3664 or 6443?

In the big picture, no species can evolve for long if the old versions aren't eliminated. You need reproduction for adaptation and evolution, and you can't have reproduction without death in any system with limited resources. OK, let's say that hypothetically, some genetic mutations have made it po...

DNA gets damaged over time, toxins accumulate over time. Some pest, parasite, or disease will eventually win. And evolution doesn't favor organisms that don't die and make room for future generations. How can evolution favor an organism's death? In the big picture, no species can evolve for long if...

Well, they have a lifespan of a few hundred years, depending on conditions. Maybe it will be there for another 200. But not forever. Yes, but why a tree can't live forever? I mean, some have been living for more than a millennia. Why this tree can't live that long? DNA gets damaged over time, toxin...

Originally from that neck of the woods , I was curious too. :thumb_up: Thanks! Btw, it mentions that "based on its species and history, it will probably be there for another 100 years." Why 100 years? What will happen after that? Well, they have a lifespan of a few hundred years, dependin...

According to the mathematics that I learned, 36 + 31 = 67, which is 4 (four) more than 63, not 3 more. Of course, this could easily be a matter of rounding issues. But then, if the actual figures were known with greater precision, it would have been quite possible to supply those numbers instead of...

I went to a concert in Portland a couple of months ago. Walking from the parking space I walked past a large tree and noticed this plaque in front of it: PXL_20240211_205553559 (1).jpg The city has grown all around the tree; it's flourished and become quite large. Which is pretty neat...nice work, ...

I went to a concert in Portland a couple of months ago. Walking from the parking space I walked past a large tree and noticed this plaque in front of it: PXL_20240211_205553559 (1).jpg The city has grown all around the tree; it's flourished and become quite large. Which is pretty neat...nice work, ...

I fear this is another "artist's representation" that is not very connected to reality. So what needs to change in order to make it more realistic? Here's another picture that I like a lot better: https://asterisk.apod.com/download/file.php?id=49622&t=1 Tidal disruption of star near b...

Okay, cool, but... https://apod.nasa.gov/apod/image/2405/BhShredder_NASA_1080.jpg APOD 5 May 2024 annotated.png Can anyone answer my questions? Ann I fear this is another "artist's representation" that is not very connected to reality. So what needs to change in order to make it more real...

Waiting for May the fourth APOD

Thank you! 21 hours to be precise. https://www.astrobin.com/hzakye/ I see! But how many hours did the processing take? It can't be 21 hours for the entire effort, right? Data acquisition was 21 hours. Processing was done in APP and Pixinsight, not much over an hour. Wow. I thought it takes longer t...

Guest wrote: ↑Thu May 02, 2024 3:30 pm

Rauf wrote: ↑Thu May 02, 2024 11:52 am Excellent work!
Can I ask how many hours did you spend creating this picture in total?

Thank you! 21 hours to be precise.

https://www.astrobin.com/hzakye/

I see! But how many hours did the processing take? It can't be 21 hours for the entire effort, right?

DJE44 wrote: ↑Thu May 02, 2024 4:53 am Thank you very much. Extremely honored again.

I am blessed with Bortle 2 skies in Northern Arizona.

-Drew

https://www.astrobin.com/users/DrewJEvans/
https://NAZObservatory.com

Excellent work!
Can I ask how many hours did you spend creating this picture in total?

johnnydeep wrote: ↑Mon Apr 29, 2024 3:12 pm

Rauf wrote: ↑Mon Apr 29, 2024 5:24 am

johnnydeep wrote: ↑Sun Apr 28, 2024 1:18 pm

Where is this Turkish flag you’re referring to?

20240408h14crop.jpg

I think this is the Turkish flag they are referring to.

Thanks. Indeed it must be. I didn't even notice it!

I wonder if that flag is lying on the ground or is it standing.

Cassiopeia is in the picture. Look at the annotated version mentioned in the explanation. The image is a another masterpiece by Tunç Tezel. APOD should be able to spell his name correctly. Holger So is he from Turkey? That's the Turkey flag, right? Where is this Turkish flag you’re referring to? 20...

Is that Cassiopeia's W near center? Probably not near center, but Cassiopeia should be in the picture. I definitely couldn't spot the familiar W. Ann Cassiopeia is in the picture. Look at the annotated version mentioned in the explanation. The image is a another masterpiece by Tunç Tezel. APOD shou...