200.000.000 star
200.000.000 star
hello I made 3,500,000 star from the gaia catalog
- Attachments
-
-
Last edited by Daly on 23.08.2020, 03:34, edited 2 times in total.
Well.Daly wrote:hello I made 1,000,000 star from the gaia catalog
Do you know that ajtribick made one of 2,463,589 stars from the same catalog ?
Soft: Celestia 1.6.2
PC : Intel Core i9-9900K (4 GHz) , Chipset Z390 Exp, RAM 32 Go DDR4 3000 Mhz, SSD M.2 512 Go + HDD 3 To, MSI GeForce RTX 2080 8Go - W10 64b
I lost my old user, so with us: since more 12 years
=> It is by doubting everything that everybody approaches the truth !
PC : Intel Core i9-9900K (4 GHz) , Chipset Z390 Exp, RAM 32 Go DDR4 3000 Mhz, SSD M.2 512 Go + HDD 3 To, MSI GeForce RTX 2080 8Go - W10 64b
I lost my old user, so with us: since more 12 years
=> It is by doubting everything that everybody approaches the truth !
Gaia has 180 files like that, I just wanted to show how complicated it is to add the stars,
- Attachments
-
Gaia-0.rar- (37.17 MiB) Downloaded 510 times
-
Trolligi 112477
- Posts: 252
- Joined: 18.04.2020
- Age: 16
- With us: 4 years
- Location: London
-
Gurren Lagann
- Posts: 429
- Joined: 31.01.2018
- Age: 17
- With us: 6 years 3 months
- Location: State of Rio de Janeiro, Brazil
The file has a little over 1.3 million stars.
"The tomorrow we're trying to reach is not a tomorrow you had decided on!"
- Simon the Digger
"Nothing is impossible for me, as long I'm determinated to keep moving forward!"
"If other people aren't going to do it, I'm going to do it myself!"
- Me (Gurren)
Current major projects:
- Aur Cir
- Cel+
- Project Sisyphus
- Populating the Local Group
- An galaxy generator
- Simon the Digger
"Nothing is impossible for me, as long I'm determinated to keep moving forward!"
"If other people aren't going to do it, I'm going to do it myself!"
- Me (Gurren)
Current major projects:
- Aur Cir
- Cel+
- Project Sisyphus
- Populating the Local Group
- An galaxy generator
The files weigh a lot so I will upload them for part 2, it is missing 200,000 stars, there are I add them.
- Attachments
-
- Gaia-2.rar
- (28.17 MiB) Downloaded 341 times
-
- Gaia-1.rar
- (36.48 MiB) Downloaded 327 times
-
- Gaia-0.rar
- (37.18 MiB) Downloaded 305 times
Trolligi 112477 wrote:jujuapapa wrote:Do you know that ajtribick made one of 2,463,589 stars from the same catalog ?
Can you at least say congratulations and not just seemingly discourage him like that?
Jujua, I bet you can’t even do 2000 stars.
Why did not you take the entire answer ???
It was just an information following a question.
As usual, your level is under the ground...
.../...
but the most important:
Added after 12 minutes 35 seconds:
Interesting !Daly wrote:The files weigh a lot so I will upload them for part 2, it is missing 200,000 stars, there are I add them.
Can you explain us the used method ?
Soft: Celestia 1.6.2
PC : Intel Core i9-9900K (4 GHz) , Chipset Z390 Exp, RAM 32 Go DDR4 3000 Mhz, SSD M.2 512 Go + HDD 3 To, MSI GeForce RTX 2080 8Go - W10 64b
I lost my old user, so with us: since more 12 years
=> It is by doubting everything that everybody approaches the truth !
PC : Intel Core i9-9900K (4 GHz) , Chipset Z390 Exp, RAM 32 Go DDR4 3000 Mhz, SSD M.2 512 Go + HDD 3 To, MSI GeForce RTX 2080 8Go - W10 64b
I lost my old user, so with us: since more 12 years
=> It is by doubting everything that everybody approaches the truth !
the files are named by dec there are 180 in total each one contains 1,500,000 aprox stars gaia page published the catalog with the parameters, in parallax for the distance, and mag blue, green, red with excel and knowing the formulas you can do but believe me you have to know something about spectrocopy.
here are the pages
https://gea.esac.esa.int/archive/
Here they are without the apparent movement
http://www.gaia2.de/catalog.html
here are the pages
https://gea.esac.esa.int/archive/
Here they are without the apparent movement
http://www.gaia2.de/catalog.html
- Attachments
-
-
Trolligi 112477
- Posts: 252
- Joined: 18.04.2020
- Age: 16
- With us: 4 years
- Location: London
Good beginning Daly !
The work will be hard because "Gaia aims to measure the characteristics of more than a billion celestial objects (stars, asteroids, galaxies, etc.) up to magnitude 20", and there are lot of files on the given directory...
My first return:
To reduce the size of the files, can you think that some numbers can be rounded (temperature (1234), absolute magnitude (12.34),...) ?
FYI : The uncompressed catalog needs 16.4 GB space at your hard disk. It contains 1.026.562.268 stars.
The work will be hard because "Gaia aims to measure the characteristics of more than a billion celestial objects (stars, asteroids, galaxies, etc.) up to magnitude 20", and there are lot of files on the given directory...
My first return:
To reduce the size of the files, can you think that some numbers can be rounded (temperature (1234), absolute magnitude (12.34),...) ?
FYI : The uncompressed catalog needs 16.4 GB space at your hard disk. It contains 1.026.562.268 stars.
Soft: Celestia 1.6.2
PC : Intel Core i9-9900K (4 GHz) , Chipset Z390 Exp, RAM 32 Go DDR4 3000 Mhz, SSD M.2 512 Go + HDD 3 To, MSI GeForce RTX 2080 8Go - W10 64b
I lost my old user, so with us: since more 12 years
=> It is by doubting everything that everybody approaches the truth !
PC : Intel Core i9-9900K (4 GHz) , Chipset Z390 Exp, RAM 32 Go DDR4 3000 Mhz, SSD M.2 512 Go + HDD 3 To, MSI GeForce RTX 2080 8Go - W10 64b
I lost my old user, so with us: since more 12 years
=> It is by doubting everything that everybody approaches the truth !
-
Sirius_Alpha
- Posts: 213
- Joined: 21.03.2019
- With us: 5 years 1 month
A few months ago I generated a stars.dat file that contained a billion (fictional) stars to see how well it loaded in Celestia. The programme loaded up and when it got to stars.dat it just sat there. Task Manager showed it was taking up more and more memory (no doubt due to loading the .dat file) up until it reached a certain point where it seemed it could not go any further. At that point everything just sat there not really doing anything.
Exoplanet nerd. I maintain a monthly-updated exoplanet catalogue here:
https://celestia.space/forum/viewtopic.php?f=23&t=18705
https://celestia.space/forum/viewtopic.php?f=23&t=18705
-
Gurren Lagann
- Posts: 429
- Joined: 31.01.2018
- Age: 17
- With us: 6 years 3 months
- Location: State of Rio de Janeiro, Brazil
You just reached a point that you crashed Celestia using STC files. The strange sound might be your PC's fans spinning waaay quickier than normal.
"The tomorrow we're trying to reach is not a tomorrow you had decided on!"
- Simon the Digger
"Nothing is impossible for me, as long I'm determinated to keep moving forward!"
"If other people aren't going to do it, I'm going to do it myself!"
- Me (Gurren)
Current major projects:
- Aur Cir
- Cel+
- Project Sisyphus
- Populating the Local Group
- An galaxy generator
- Simon the Digger
"Nothing is impossible for me, as long I'm determinated to keep moving forward!"
"If other people aren't going to do it, I'm going to do it myself!"
- Me (Gurren)
Current major projects:
- Aur Cir
- Cel+
- Project Sisyphus
- Populating the Local Group
- An galaxy generator
OK, I had none problem with the third stc files.
Soft: Celestia 1.6.2
PC : Intel Core i9-9900K (4 GHz) , Chipset Z390 Exp, RAM 32 Go DDR4 3000 Mhz, SSD M.2 512 Go + HDD 3 To, MSI GeForce RTX 2080 8Go - W10 64b
I lost my old user, so with us: since more 12 years
=> It is by doubting everything that everybody approaches the truth !
PC : Intel Core i9-9900K (4 GHz) , Chipset Z390 Exp, RAM 32 Go DDR4 3000 Mhz, SSD M.2 512 Go + HDD 3 To, MSI GeForce RTX 2080 8Go - W10 64b
I lost my old user, so with us: since more 12 years
=> It is by doubting everything that everybody approaches the truth !
I do it with dec here are the four, also according to the data the galaxy is curved with a star path to the great Magellanic cloud.
I plan to make a collage later
I plan to make a collage later
- Attachments
-
- Gaia-26.rar
- (69.39 MiB) Downloaded 308 times
-
-
-
- Gaia+0+1+2.rar
- (123.51 MiB) Downloaded 294 times
-
Gurren Lagann
- Posts: 429
- Joined: 31.01.2018
- Age: 17
- With us: 6 years 3 months
- Location: State of Rio de Janeiro, Brazil
Actually, that path isnt actually counted as part of the Milky Way. You found the Magellanic Stream, which links the Milky Way to the LMC and SMC.
Its actually a real thing btw: https://apod.nasa.gov/apod/ap130815.html
Its actually a real thing btw: https://apod.nasa.gov/apod/ap130815.html
"The tomorrow we're trying to reach is not a tomorrow you had decided on!"
- Simon the Digger
"Nothing is impossible for me, as long I'm determinated to keep moving forward!"
"If other people aren't going to do it, I'm going to do it myself!"
- Me (Gurren)
Current major projects:
- Aur Cir
- Cel+
- Project Sisyphus
- Populating the Local Group
- An galaxy generator
- Simon the Digger
"Nothing is impossible for me, as long I'm determinated to keep moving forward!"
"If other people aren't going to do it, I'm going to do it myself!"
- Me (Gurren)
Current major projects:
- Aur Cir
- Cel+
- Project Sisyphus
- Populating the Local Group
- An galaxy generator
Downloaded, installed and tested this morning !
'my' celestia 1.6.2 is very very long to read the file (more 5'20"...)
And my PC is strong (Core I9-9900 4GHz, RAM 32 GB...)
I think that it's not a good solution for the actual celestia...
'my' celestia 1.6.2 is very very long to read the file (more 5'20"...)
And my PC is strong (Core I9-9900 4GHz, RAM 32 GB...)
I think that it's not a good solution for the actual celestia...
Soft: Celestia 1.6.2
PC : Intel Core i9-9900K (4 GHz) , Chipset Z390 Exp, RAM 32 Go DDR4 3000 Mhz, SSD M.2 512 Go + HDD 3 To, MSI GeForce RTX 2080 8Go - W10 64b
I lost my old user, so with us: since more 12 years
=> It is by doubting everything that everybody approaches the truth !
PC : Intel Core i9-9900K (4 GHz) , Chipset Z390 Exp, RAM 32 Go DDR4 3000 Mhz, SSD M.2 512 Go + HDD 3 To, MSI GeForce RTX 2080 8Go - W10 64b
I lost my old user, so with us: since more 12 years
=> It is by doubting everything that everybody approaches the truth !
Regarding the comments about loading times...
Putting the full Gaia catalogue into Celestia won't work. You need to choose some subset of it.
Celestia loads the entire star database into memory, and builds the octree at startup. This does not scale to billions of stars. (From experience, it's also extremely painful running debug builds)
This is not to say it's impossible to come up with a solution for this, but it would require fundamentally altering how Celestia handles its star database. Gaia Sky pre-builds the octree so can load relevant subsets of the star database from disc on demand.
Putting the full Gaia catalogue into Celestia won't work. You need to choose some subset of it.
Celestia loads the entire star database into memory, and builds the octree at startup. This does not scale to billions of stars. (From experience, it's also extremely painful running debug builds)
This is not to say it's impossible to come up with a solution for this, but it would require fundamentally altering how Celestia handles its star database. Gaia Sky pre-builds the octree so can load relevant subsets of the star database from disc on demand.