Ultimate space simulation software

 
User avatar
AlexanderVB
Observer
Observer
Posts: 8
Joined: 13 Nov 2017
Location: Indonesia

COMMUNITY ADDON - Catalog Fixes for SE

26 Dec 2017 19:22

FW Tau is a binary star system with a gas giant orbiting both of them. The gas giant takes 11421.023 years in Space Engine.
The problem is that both stars orbit each other at wildly different orbital periods. One of them has a orbital period of 24.376 years, while the other is 11421.023 years, exactly the same as the gas giant.
Based on the mass of each star (in which both of them have the exact same mass of 0.28 solar masses, which means the total mass of both stars is 0.56 solar masses) and their distance from each other (which is 11 AU), and based on the link below...

http://hyperphysics.phy-astr.gsu.edu/hb ... istar.html

... I predict that the true value for the orbital period is 48.75228932353551 years. Please note that this is entirely based on the mass, so if the mass turned out to be wrong as well, so is my prediction.
 
User avatar
SpaceEngineer
Author of SpaceEngine
Author of SpaceEngine
Topic Author
Posts: 821
Joined: 17 May 2016
Location: Saint-Petersburg
Contact:

COMMUNITY ADDON - Catalog Fixes for SE

27 Dec 2017 00:20

Julian wrote:
Source of the post According to Wikipedia, WR 124 is another name for HIP 94289, and it's the Wolf-Rayet star at the center of the M1-67 planetary nebula. However, in SE's default catalog, HIP 94289 is 7631.78 ly closer to Earth than the nebula is. This fix gives the star the same coordinates and distance as the nebula:

You do not need to use RemoveStar, as long as the name of star does not changed. SE merges all object with the same names.

AlexanderVB wrote:
Source of the post FW Tau is a binary star system with a gas giant orbiting both of them.

Ouch, you have discovered a bug! SE computes orbital period itself, if it is not specified in the catalog. But this time it takes the planet b as secondary companion of the star B, thus computes wrong period. The bus is fixed now.

Thanks for fixes!
 
User avatar
JackDole
World Builder
World Builder
Posts: 1165
Joined: 02 Nov 2016
Location: Terra

COMMUNITY ADDON - Catalog Fixes for SE

28 Jan 2018 08:51

KIC 10001893

The star KIC 10001893 is shown as a giant star, rather than as a sub-dwarf. That's why his planets are inside the star !

Here is a slightly different script. Put it in 'addons\catalogs\stars'.
// Filename: KIC10001893.sc
// JackDole 2018.01.28 17:11:09

//------------------------------------------------------------------------------

Star "KIC 10001893"
{
    RA      19 09 33.405
    Dec     46 59 04.16
    
    Class   "sdb"
    
    AppMagn 16
    MassSol 0.47
    RadSol  0.24
    
    Teff    26700
}

//------------------------------------------------------------------------------

KIC10001893.sc
(418 Bytes) Downloaded 162 times


(Found by Notumengi at https://www.reddit.com/r/spaceengine/co ... e_planets/)
JackDole's Universe: http://forum.spaceengine.org/viewtopic.php?f=3&t=71
JackDole's Archive: http://forum.spaceengine.org/viewtopic.php?f=3&t=419
JackDole: Mega structures ... http://old.spaceengine.org/forum/17-3252-1 (Old forum)
 
User avatar
Ross 128b
Observer
Observer
Posts: 1
Joined: 07 Jun 2018
Location: Orbiting Ross 128

COMMUNITY ADDON - Catalog Fixes for SE

07 Jun 2018 12:59

Teegarden's Star is too massive, too small, and doesn't have the right spectral type in the game. It should also probably be renamed, since I think it's referred to as 'Teegarden's Star' [i]way [/i]more often than '2MASS J02530084+1652532'.

Also, Barnard's Star is an M4VI in SE, when it should be an M4V.
I heard that humans discovered me back in 2017. Very worrying!
 
User avatar
AlexanderVB
Observer
Observer
Posts: 8
Joined: 13 Nov 2017
Location: Indonesia

COMMUNITY ADDON - Catalog Fixes for SE

08 Jun 2018 04:34

In SpaceEngine, the star CHI Aqr is also called Situla. However, the name actually belongs to KAP Aqr.
 
User avatar
SpaceEngineer
Author of SpaceEngine
Author of SpaceEngine
Topic Author
Posts: 821
Joined: 17 May 2016
Location: Saint-Petersburg
Contact:

COMMUNITY ADDON - Catalog Fixes for SE

08 Jun 2018 14:06

Thanks, fixed!
 
User avatar
Starlight Glimmer
Explorer
Explorer
Posts: 284
Joined: 02 Nov 2016
Location: Somewhere

COMMUNITY ADDON - Catalog Fixes for SE

11 Jun 2018 15:19

The object of 2007OR10 should have it's moon and have a reddish color to it. In space engine it appears to be only 660 miles in diameter while it's actual size is closer to 950ish.

2002 MS4 should be around 730 kilometers while in SE it's only around 600ish? 
 
User avatar
SpaceEngineer
Author of SpaceEngine
Author of SpaceEngine
Topic Author
Posts: 821
Joined: 17 May 2016
Location: Saint-Petersburg
Contact:

COMMUNITY ADDON - Catalog Fixes for SE

12 Jun 2018 11:32

Thanks, 2007 OR10 with its satellite is already added to SE 0.990.
 
User avatar
JackDole
World Builder
World Builder
Posts: 1165
Joined: 02 Nov 2016
Location: Terra

COMMUNITY ADDON - Catalog Fixes for SE

17 Jul 2018 12:03

Some new Jupiter moons.
Astronomers discover 12 new moons orbiting Jupiter - one on collision course with the others

Here's a script with the 10 new Jupiter moons. (Two are a slightly older and already in the SpaceEngine catalog.)
NewJupiterMoons.sc
(14.71 KiB) Downloaded 122 times

I left the data I made the script with as comments in the script.
(The 11th is apparently an update for an older moon.)
JackDole's Universe: http://forum.spaceengine.org/viewtopic.php?f=3&t=71
JackDole's Archive: http://forum.spaceengine.org/viewtopic.php?f=3&t=419
JackDole: Mega structures ... http://old.spaceengine.org/forum/17-3252-1 (Old forum)
 
User avatar
Mosfet
World Builder
World Builder
Posts: 1145
Joined: 24 Oct 2016
Location: Italy
Contact:

COMMUNITY ADDON - Catalog Fixes for SE

11 Dec 2018 15:13

According recent shape model data sources (https://space.frieger.com/asteroids/moons/S18-Pan), the Saturn moon Pan could be slightly elliptical in two axes. By retouching the Z Oblateness value and thanks to the recent introduction of ridges, the procedural shape is even more similar to the calculated shape.
DwarfMoon    "Pan/Saturn XVIII/S|1981 S13"
{
    ParentBody     "Saturn"
    Albedo          0.5
    Radius          12.8
    Oblateness     (0.000, 0.400, 0.220)
    Mass            8.2E-10

    RotationModel "IAU"
    {
        Epoch            2451545        // J2000
        PoleRA          40.6        // degrees
        PoleRARate      -0.036        // degrees/century
        PoleDec         83.5        // degrees
        PoleDecRate     -0.004        // degrees/century
        PrimeMeridian    48.8        // degrees
        RotationRate    626.044        // degrees/day
    }
    
    Surface
    {
        venusFreq       0.66
        venusMagn       0.0
        eqridgeMagn     0.5
        eqridgeWidth    0.11827
        eqridgeModMagn  0.5916
        eqridgeModFreq  0.30534
    }

    Orbit
    {
        Epoch          2453177.5
        Period         0.001574434718
        SemiMajorAxis  0.0008929411764
        Eccentricity   0.00021
        Inclination    0.007
        AscendingNode  263
        LongOfPericen  209
        MeanLongitude  106.645
    }
}
"Time is illusion. Lunchtime doubly so". Douglas N. Adams
My mods | My specs: Asus x555ub - cpu i5-6200u, ram 4gb, gpu nvidia geforce 940m 2gb vram | IRC freenode.net canale ##SpaceEngineITA
 
User avatar
SpaceEngineer
Author of SpaceEngine
Author of SpaceEngine
Topic Author
Posts: 821
Joined: 17 May 2016
Location: Saint-Petersburg
Contact:

COMMUNITY ADDON - Catalog Fixes for SE

11 Dec 2018 17:18

JackDole:

I assume that the letter 'H' stands for the 'RotationPeriod' and the letter 'P' for the diameter or the radius. (I took it as radius.)

You are wrong, H is the absolute magnitude (AbsMagn in SE). I don't know what is P/d, but certainly not a size. Size can be estimated from absolute magnitude and assumed albedo.
Notice what you can use PeriodDays and SemiMajorAxisKm, to avoid manual conversion.
 
User avatar
JackDole
World Builder
World Builder
Posts: 1165
Joined: 02 Nov 2016
Location: Terra

COMMUNITY ADDON - Catalog Fixes for SE

12 Dec 2018 01:27

SpaceEngineer wrote:
Source of the post I don't know what is P/d, but certainly not a size

I have kept 'P' for the diameter or radius. 'P/d' I think is 'Period/day'

Here is a corrected version. With 'H' for 'AbsMagn'. I disabled 'Radius'. (But I still consider 'P' to be the diameter or radius (in Km) as it seems to fit very well. These new Jupiter moons are obviously very small.)
NewJupiterMoons.sc
(14.18 KiB) Downloaded 12 times
JackDole's Universe: http://forum.spaceengine.org/viewtopic.php?f=3&t=71
JackDole's Archive: http://forum.spaceengine.org/viewtopic.php?f=3&t=419
JackDole: Mega structures ... http://old.spaceengine.org/forum/17-3252-1 (Old forum)
 
User avatar
SpaceEngineer
Author of SpaceEngine
Author of SpaceEngine
Topic Author
Posts: 821
Joined: 17 May 2016
Location: Saint-Petersburg
Contact:

COMMUNITY ADDON - Catalog Fixes for SE

12 Dec 2018 03:21

Thank you, added to steam update.

Who is online

Users browsing this forum: No registered users and 1 guest