Search found 548 matches
- Sat May 11, 2024 5:58 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: AR 3664: Giant Sunspot Group (2024 May 11)
- Replies: 24
- Views: 660
Re: APOD: AR 3664: Giant Sunspot Group (2024 May 11)
https://apod.nasa.gov/apod/calendar/S_240511.jpg AR 3664: Giant Sunspot Group Explanation: Right now, one of the largest sunspot groups in recent history is crossing the Sun. Active Region 3664 is not only big -- it's violent, throwing off clouds of particles into the Solar System . Some of these C...
- Sat May 11, 2024 4:47 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: What did you see in the sky tonight?
- Replies: 1303
- Views: 1058935
Re: What did you see in the sky tonight?
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Northern lights over the Lago di Lugano
...Located in the Italian-speaking south (Ticino) of Switzerland. ...or holiday greetings from the boathouse last night (10.05.2024 - 23:30 MEZ) jac berne (flickr)
Northern lights over the Lago di Lugano
...Located in the Italian-speaking south (Ticino) of Switzerland. ...or holiday greetings from the boathouse last night (10.05.2024 - 23:30 MEZ) jac berne (flickr)
- Wed May 08, 2024 8:53 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Visualization: A Black Hole Disk... (2024 May 08)
- Replies: 12
- Views: 697
Re: APOD: Visualization: A Black Hole Disk... (2024 May 08)
https://apod.nasa.gov/apod/calendar/S_240508.jpg Visualization: A Black Hole Accretion Disk << Previous APOD This Day in APOD Next APOD >> https://live.staticflickr.com/65535/53114452768_8cc57474f8_b.jpg jac berne (flickr) NGC 383 Superb images, Jac! I love your contributions to this forum. You mad...
- Wed May 08, 2024 7:14 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Visualization: A Black Hole Disk... (2024 May 08)
- Replies: 12
- Views: 697
Re: APOD: Visualization: A Black Hole Disk... (2024 May 08)
If one assumes that, according to theory, every black hole also has an accretion disk... What theory is that? I think the overwhelming majority of black holes in the Universe have no accretion disk. This simulation shows the appearance of a black hole with an accretion disk. Simulations have also b...
- Wed May 08, 2024 6:53 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Visualization: A Black Hole Disk... (2024 May 08)
- Replies: 12
- Views: 697
Re: APOD: Visualization: A Black Hole Disk... (2024 May 08)
On the topic of visualizations, Jean-Pierre Luminet is a French astrophysicist who made this image of a black hole 45 YEARS AGO! The first one ever apparently. Using maths, and a 1970’s computer… He’s still alive and still studying black holes today, he deserves a mention on this black hole week! (...
- Wed May 08, 2024 5:44 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Visualization: A Black Hole Disk... (2024 May 08)
- Replies: 12
- Views: 697
Re: APOD: Visualization: A Black Hole Disk... (2024 May 08)
https://apod.nasa.gov/apod/calendar/S_240508.jpg Visualization: A Black Hole Accretion Disk Explanation: What would it look like to circle a black hole? If the black hole was surrounded by a swirling disk of glowing and accreting gas , then the great gravity of the black hole would deflect light em...
- Tue May 07, 2024 5:04 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Black Hole Accreting with Jet (2024 May 07)
- Replies: 17
- Views: 666
Re: APOD: Black Hole Accreting with Jet (2024 May 07)
https://apod.nasa.gov/apod/calendar/S_240507.jpg Black Hole Accreting with Jet Explanation: What happens when a black hole devours a star? Many details remain unknown, but observations are providing new clues. In 2014, a powerful explosion was recorded by the ground-based robotic telescopes of the ...
- Sun May 05, 2024 7:46 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Black Hole Disrupts a Passing Star (2024 May 05)
- Replies: 29
- Views: 876
Re: APOD: A Black Hole Disrupts a Passing Star (2024 May 05)
https://apod.nasa.gov/apod/calendar/S_240505.jpg A Black Hole Disrupts a Passing Star Explanation: What happens to a star that goes near a black hole? If the star directly impacts a massive black hole , then the star falls in completely -- and everything vanishes. More likely , though, the star goe...
- Sat May 04, 2024 4:54 am
- Forum: The Communications Center: Breaking Science News
- Topic: MAUVE survey: Giant galactic explosion in NGC 4383
- Replies: 2
- Views: 531
Re: MAUVE survey: Giant galactic explosion in NGC 4383
MAUVE survey: Giant galactic explosion in NGC 4383 exposes galaxy pollution in action phys.org | 2024 April 21 TY4YA Jac Phys.org wrote about NGC 4383: Galaxy NGC 4383 evolving strangely. Gas is flowing from its core at a rate of over 200 km/s. This mysterious gas eruption has a unique cause: star ...
- Sat May 04, 2024 3:20 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: M100: A Grand Design Spiral Galaxy (2024 May 02)
- Replies: 34
- Views: 1595
Re: APOD: M100: A Grand Design Spiral Galaxy (2024 May 02)
Is there even a definition of a "bar" based on something other than mere appearance? Is it simply dust/gas that is apparently concentrated more or less predominantly along a line through the galaxy core? Well. When I look at the galaxy in IR, it doesn't remind me much of a bar either. ......
- Sat May 04, 2024 2:55 am
- Forum: The Communications Center: Breaking Science News
- Topic: WEBB: Insanely Detailed Image of the Horsehead Nebula
- Replies: 5
- Views: 370
Re: WEBB: Insanely Detailed Image of the Horsehead Nebula
Insanely Detailed Webb Image of the Horsehead Nebula universetoday.com | 2024 April 30 https://www.universetoday.com/wp-content/uploads/2024/04/Webb_captures_iconic_Horsehead_Nebula_in_unprecedented_detail.jpg tunnel rush The leading image shows JWST’s view of the Horsehead Nebula alongside two oth...
- Sat May 04, 2024 2:50 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: IC 1795: The Fishhead Nebula (2024 May 01)
- Replies: 24
- Views: 1065
Re: APOD: IC 1795: The Fishhead Nebula (2024 May 01)
I wonder why does SSDS fish have a collar (just like APOD fish does) and neither GLIMPSE nor SPITZER fish do? Good point. Well I think that since both work in the IR range, the view changes from dark dust clouds to bright warm gas clouds which appear practically equally bright in the front and back...
- Sat May 04, 2024 2:27 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: GK Per: Nova and Planetary Nebula (2024 Apr 30)
- Replies: 16
- Views: 875
Re: APOD: GK Per: Nova and Planetary Nebula (2024 Apr 30)
Once again a masterpiece! Congratulations to the Deep Sky Collective team. Be sure to click twice on the image to see the Nova up close, gorgeous object! I like cosmic dandelions too! ...and when you overlay older images (e.g. from Hubble) you can clearly see how the nova is developing... https://l...
- Fri May 03, 2024 4:48 pm
- Forum: The Communications Center: Breaking Science News
- Topic: WEBB: Insanely Detailed Image of the Horsehead Nebula
- Replies: 5
- Views: 370
Re: WEBB: Insanely Detailed Image of the Horsehead Nebula
Insanely Detailed Webb Image of the Horsehead Nebula universetoday.com | 2024 April 30 https://www.universetoday.com/wp-content/uploads/2024/04/Webb_captures_iconic_Horsehead_Nebula_in_unprecedented_detail.jpg tunnel rush The leading image shows JWST’s view of the Horsehead Nebula alongside two oth...
- Fri May 03, 2024 4:06 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: M100: A Grand Design Spiral Galaxy (2024 May 02)
- Replies: 34
- Views: 1595
Re: APOD: M100: A Grand Design Spiral Galaxy (2024 May 02)
Still not much of a definitive bar in M61 at all compared to your other examples. And I'm not convinced of the "inner" bar in NGC 1365 either! "A bar is in the eye of the beholder" it seems. I just told you that I don't necessarily always trust Wikipedia, but now I'm going to qu...
- Thu May 02, 2024 5:46 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: IC 1795: The Fishhead Nebula (2024 May 01)
- Replies: 24
- Views: 1065
Re: APOD: IC 1795: The Fishhead Nebula (2024 May 01)
In context from a wider field of view image at one of the links in the text: fish head, heart, and soul nebulas.jpg I still find the area very exciting even in IR. https://live.staticflickr.com/65535/53692377213_263792ee09_b.jpg jac berne (SSDS/GLIMPSE) https://live.staticflickr.com/65535/536912714...
- Wed May 01, 2024 7:03 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: IC 1795: The Fishhead Nebula (2024 May 01)
- Replies: 24
- Views: 1065
Re: APOD: IC 1795: The Fishhead Nebula (2024 May 01)
In context from a wider field of view image at one of the links in the text: fish head, heart, and soul nebulas.jpg I still find the area very exciting even in IR. https://live.staticflickr.com/65535/53692377213_263792ee09_b.jpg jac berne (SSDS/GLIMPSE) https://live.staticflickr.com/65535/536912714...
- Wed May 01, 2024 9:57 am
- Forum: The Communications Center: Breaking Science News
- Topic: WEBB: Insanely Detailed Image of the Horsehead Nebula
- Replies: 5
- Views: 370
WEBB: Insanely Detailed Image of the Horsehead Nebula
Insanely Detailed Webb Image of the Horsehead Nebula universetoday.com | 2024 April 30 https://www.universetoday.com/wp-content/uploads/2024/04/Webb_captures_iconic_Horsehead_Nebula_in_unprecedented_detail.jpg The leading image shows JWST’s view of the Horsehead Nebula alongside two other views. Th...
- Wed May 01, 2024 2:52 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: GK Per: Nova and Planetary Nebula (2024 Apr 30)
- Replies: 16
- Views: 875
Re: APOD: GK Per: Nova and Planetary Nebula (2024 Apr 30)
Once again a masterpiece! Congratulations to the Deep Sky Collective team. Be sure to click twice on the image to see the Nova up close, gorgeous object! I like cosmic dandelions too! ...and when you overlay older images (e.g. from Hubble) you can clearly see how the nova is developing... https://li...
- Mon Apr 29, 2024 8:25 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Regulus and the Dwarf Galaxy (2024 Apr 26)
- Replies: 18
- Views: 1067
Re: APOD: Regulus and the Dwarf Galaxy (2024 Apr 26)
Cool! Nice work. Well I am not sure. Maybe fitting the temperature scales is better The HR diagram of the Milky Way-3.jpgThe HR diagram of the Milky Way-4.jpg https://asterisk.apod.com/download/file.php?id=49561&mode=view What stays the same is Bright Giant branch fitting of the globular cluste...
- Mon Apr 29, 2024 7:24 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: NewJWST: New Pictures from JWST
- Replies: 21
- Views: 15107
Re: NewJWST: New Pictures from JWST
NGC 2775 https://live.staticflickr.com/65535/53684201177_568179eac3_b.jpg https://live.staticflickr.com/65535/53685293768_3dd15e8fed_b.jpg jac berne (flickr) Original data: NASA/ESA/CSA Have you yourself processed the NASA/ESA/CSA data to produce this image, Jac? It's glorious! And NGC 2775 is such...
- Sun Apr 28, 2024 7:41 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: NewJWST: New Pictures from JWST
- Replies: 21
- Views: 15107
- Thu Apr 25, 2024 5:19 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 604: Giant Stellar Nursery (2024 Apr 25)
- Replies: 7
- Views: 726
Re: APOD: NGC 604: Giant Stellar Nursery (2024 Apr 25)
Where did you find the Tarantula image? (And to me, it looks like both the images you provided are using the same palette.) I found it here: https://www.nasa.gov/universe/a-cosmic-tarantula-caught-by-nasas-webb/ It's unclear what mapping was used in either image, or indeed, which filters. As a rule...
- Tue Apr 23, 2024 5:46 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: GOTD: Galaxy Of The Day
- Replies: 53
- Views: 305627
Re: GOTD: Galaxy Of The Day
Hubble captures a bright galactic and stellar duo phys.org | Original release 2024 April 22 https://scx1.b-cdn.net/csz/news/800a/2024/hubble-captures-a-brig.jpg While the focus of this image is the spiral galaxy NGC 3783, the eye is equally drawn to the very bright object in the lower right part of...
- Mon Apr 22, 2024 7:16 pm
- Forum: The Communications Center: Breaking Science News
- Topic: MAUVE survey: Giant galactic explosion in NGC 4383
- Replies: 2
- Views: 531
MAUVE survey: Giant galactic explosion in NGC 4383
MAUVE survey: Giant galactic explosion in NGC 4383 exposes galaxy pollution in action phys.org | 2024 April 21 https://scx1.b-cdn.net/csz/news/800a/2024/giant-galactic-explosi.jpg A team of international researchers studied galaxy NGC 4383, in the nearby Virgo cluster, revealing a gas outflow so la...