Celestia Forums

where did that purple background come from?
(ik i am late)

Hi Trappist, the purple background is the Planck's CMB customized with Gimp since the official red version of Planck web page to be more friendly to view in my program and avoid an annoying visual disturb, lol

Happy New Year to all users of Celestia, I hope that during 2021 the humanity can solve the hard problem of Covid-19. Here the list of my adds during 2020: 1 Clouds for habitable exoplanets around red dwarf stars 2 6k Planck's Cosmic Microwave Background in Celestia 3 Trappist-1 system textures by N...

New update with scripts to turn OFF/ON lines and grids (can download corrected file in the chief post)

GN-Z11 is a galaxy with a radius of 2000ly. GN-z11 is currently the oldest and most distant known galaxy in the observable universe (near to universe bubble border) about the redshift z=11,1 (13,4 gigayears ago) or just 400 million years after the Big Bang. I've created this addon based in Pablo Car...

Corrected fail with Z=4 (can download corrected file in the chief post)

Hi people: This addon is because a request of Art Blos in post of Ajtribick stars addon. Is a custom adaptation of the original addon of Graticules and Redshift of Selden Ball to see ecuatorial, galactic, ecliptic and local sheet lines since the sky of the earth and to see distances out of the solar...

Art Blos wrote:Can you share your version?

of course, I'll create a new post: viewtopic.php?f=23&t=20629

DrJMOS < What are these red marks in the screenshot? Hi Art Blos, red marks is a custom adaptation of the original addon Graticules of Selden Ball to see distances inside the Milky way in light years in galactic plane (graticule of 1 ly to 200000 ly). Beyond the galaxy continue the distances with c...

I've released a new version v1.0.4 which uses relative parallax error to choose between Gaia DR2 and XHIP parallaxes (this affects the cases of Alpha Cas and Delta Sgr mentioned by DrJMOS, they should be back at more reasonable distances). This affects 1787 stars out of a total 2499574. There's als...

No, but this should be fairly straightforward to implement. I leave it as an exercise for the reader

Yep! very helpful to fix arms of the Milky Way viewtopic.php?f=5&t=20576

Hi Ajtribick You will see a result with 1 row. There is a small icon which looks like a table, which shows a tooltip "Display top 2000 results". Click it. Take a look at the value in the r_est column, which contains the estimated distance in parsecs. ventana2.png ventana1.png ...is done me...

Hi, i am confused, in 2005 Grant Hutchison expanded version Shedir is to 228 light years away but in this version is 1,3737 kpc away

New adjust based in star distribution and density points:

1. Magallanes gravity effect in branch of Sagittarius arm
2. Bridges and spikes between Perseus, Orion and Sagittarius arms
3. Branch of Centaurus arm



Star distribution and density points:

New update based in https://celestia.space/forum/viewtopic.php?f=23&t=17678&p=136209&hilit=milkyway.png#p136209 1. Orion arm as branch of Perseus arm based in density points 2. Branch of Sagittarum arm 3. Adjust Norma and Sagittarum arms based in density points MilkyWay.png Results: bran...

Updates respect to 1.61. version: 1. Resizing the center bar to connect to Perseus arm and Scutum-Centauros arm. 2. Increasing thickness of the Perseus and Scutum-Centaurus arms. 3. Attenuation of the Sagittarius and Norma arms. Steps: 1. Download the next image titled MilkyWay.png: MilkyWay.png 2. ...

If you find an error in my code, or that the orbit parameters I am using for a particular extrasolar planet are incorrect. Definitely let me know. Another potential source of error would be a bad value for the luminosity of the star -- likely due to an incorrect radius or temperature input. The lat...

Council of giants is a group of the 14 giant galaxies, included Andromeda and Milky Way, embedded in a dark matter disk of the 34-million light years across and only 1.5-million light years thick Addon based in A Council of Giants Marshall L. McCall Monthly Notices of the Royal Astronomical Society,...

Other big version here:



...to get same apparence that the splash edge of Budassi (cosmic background) inside of the Celestia sofware can download the planck's CMB red version and follow the steps of viewtopic.php?f=5&t=20412

Save the next code as EridanusSupervoid.dsc in the same folder: Nebula "Eridanus supervoid" { RA 3.3278 Dec -19.4114 Distance 1.38e10 Radius 6e8 } The Eridanus Supervoid is the largest supervoid (an area of the universe devoid of galaxies) discovered as of 2007. At a diameter of about one ...