×
INDI Library v1.8.5 Released (19 Apr 2020)

April 2020 release of INDI Library v1.8.5 introduces new drivers while providing fixes and improvements to existing devices and core framework.

Real Black Hole

1 year 1 month ago 1 year 1 month ago by Kaczorek.
Kaczorek
Moderator
Moderator
Posts: 896
Karma: 6
More
Topic Author
Real Black Hole #37565
The image of the central black hole in Virgo Galaxy A (M87) has been just released!


--
Radek Kaczorek
Astroberry Server | NEQ6 | Atik 460EX | Atik EFW2 | ASI 120MM
Attachments:
The following user(s) said Thank You pcxz, pentaxian23, CygnusX1

Please Log in or Create an account to join the conversation.

1 year 1 month ago
CygnusX1
Fresh Boarder
Fresh Boarder
Posts: 8
More
Real Black Hole #37567
That is a very nice image. Thanks for sharing!

Regards,
Richard

Orion Atlas EQ-G | KSON 80mm Triplet Refractor | Orion SSAG | Lumicon 50mm Guide Scope | Canon EOS T6i | Stellarmate on RPI 3B+ | KSTARS on MacBook Air

Please Log in or Create an account to join the conversation.

1 year 1 month ago 1 year 1 month ago by Gonzothegreat.
Gonzothegreat
Administrator
Administrator
Posts: 1722
Karma: 6
More
Real Black Hole #37605
To put the size in perspective...


source: xkcd.com/2135/

Kstars Mac osx
Odroid C1 running indiserver (kept up-to-date with apt-get update/upgrade)
HEQ5 pro / QHY5L-II-M (OAG) / Atik 314L+ / Gerd Neumann drawer
Attachments:
The following user(s) said Thank You pcxz, pentaxian23

Please Log in or Create an account to join the conversation.

1 year 1 month ago
stash
Platinum Boarder
Platinum Boarder
Posts: 400
Karma: 4
More
Real Black Hole #37662
I Quote someone from Sky At Night who says - "Technically they haven’t imaged the black hole as it is a singularity, what they’ve done is clearly image the event horizon just as material is super heated then falls in and disappears"

RPI3 Ubuntu 16.04 / AMD desktop Kstars under Ubuntu 16.04 Mounts :azeq6 ,SWAZGoTo

RPI3 Fedora testing out on AMD desktop Fedpra 28 - running kstars 2.9.4 , Indilib 1.7.4 ?????
The following user(s) said Thank You Ron Kramer

Please Log in or Create an account to join the conversation.

1 year 1 month ago
Kaczorek
Moderator
Moderator
Posts: 896
Karma: 6
More
Topic Author
Real Black Hole #37668
This actually true. It's like imaging silhouette of a man in a backlight. Still it is a picture of a man ;-)

--
Radek Kaczorek
Astroberry Server | NEQ6 | Atik 460EX | Atik EFW2 | ASI 120MM

Please Log in or Create an account to join the conversation.

1 year 1 month ago
wvreeven
Platinum Boarder
Platinum Boarder
Posts: 1475
Karma: 7
More
Real Black Hole #37669
Also, the term black hole commonly refers to anything within the even horizon and not just the singularity.

ASI1600MM-Pro Cooled and filter wheel with a SkyWatcher Esprit 80 ED on a SkyWatcher HEQ5-Pro
ASI1600MM-Pro Cooled and filter wheel with an 8" TS Ritchey-Chrétien on a SkyWatcher EQ6-R

Please Log in or Create an account to join the conversation.

1 year 1 month ago
Kaczorek
Moderator
Moderator
Posts: 896
Karma: 6
More
Topic Author
Real Black Hole #37671

wvreeven wrote: Also, the term black hole commonly refers to anything within the even horizon and not just the singularity.

Is even horizon part of a black hole? I think it is, as it is specific to this object, also as Schwarzschild's solution to Einstein's field equations.

--
Radek Kaczorek
Astroberry Server | NEQ6 | Atik 460EX | Atik EFW2 | ASI 120MM

Please Log in or Create an account to join the conversation.

1 year 1 month ago
wvreeven
Platinum Boarder
Platinum Boarder
Posts: 1475
Karma: 7
More
Real Black Hole #37672
Well, I guess that depends on your definition. Simply put, a black hole is a region in space from which nothing can escape, not even light. The event horizon is the boundary between normal space and the black hole. Does that make it part of the black hole? It probably is. And I’d say the even horizon is an infinitesimally thin line but I may be, and probably am, wrong about that.

ASI1600MM-Pro Cooled and filter wheel with a SkyWatcher Esprit 80 ED on a SkyWatcher HEQ5-Pro
ASI1600MM-Pro Cooled and filter wheel with an 8" TS Ritchey-Chrétien on a SkyWatcher EQ6-R

Please Log in or Create an account to join the conversation.

1 year 1 month ago 1 year 1 month ago by Kaczorek.
Kaczorek
Moderator
Moderator
Posts: 896
Karma: 6
More
Topic Author
Real Black Hole #37674
I think you're absolutely right. In this view it's not even an image of even horizon, but particles sliding on it.
There's quite nice explanation of the topic in this video.

--
Radek Kaczorek
Astroberry Server | NEQ6 | Atik 460EX | Atik EFW2 | ASI 120MM

Please Log in or Create an account to join the conversation.

Moderators: oleglupinixGonzothegreat
Time to create page: 0.888 seconds