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JackDole
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28 Feb 2020 23:49

A-L-E-X wrote:
Source of the post are we going to have these new minimoons just discovered in the program?

If you mean '2020 CD3', probably not, because it does not have a stable earth orbit and will not remain in the Earth's sphere of influence for long.

But here it is as an asteroid:
// -*- coding: utf-8 -*-
// Filename: 2020_CD3.sc
// Comment: Temporarily captured 'moon' of Earth
// JackDole (Gerhard H. Quast) 2020.02.29 07:48:51

// https://ssd.jpl.nasa.gov/sbdb.cgi
// https://en.wikipedia.org/wiki/2020_CD3
//------------------------------------------------------------------------------

LogLevel 1

Asteroid "2020 CD3/C26FED2"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    AsterType   "NEO"           // (Apollo - Amor - NEO - temporarily captured)
    
    Radius      0.0024          // 1.9 - 3.5 meter
    
    DiscDate    "2020.02.15"
    
    AbsMagn     31.72
    
    Orbit
    {
        RefPlane        "Ecliptic"
        Epoch           2459000.5
        Eccentricity    0.01722440066805479
        SemiMajorAxis   1.022687768259784
        PericenterDist  1.005072584380959
        Inclination     0.6403091503192192
        AscendingNode   83.00207752936056
        ArgOfPericen    46.9429258501142
        MeanAnomaly     117.0320616803464
        PeriodDays      377.7574336874017
        MeanMotion      0.9529924970262897
        //aphelion distance   1.040302952138609
    }
}

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

scr00724.jpg

2020_CD3.sc
(1.22 KiB) Downloaded 37 times
(Put this file in 'addons\catalogs\planets'.)
JackDole's Universe 0.990: http://forum.spaceengine.org/viewtopic.php?f=3&t=546
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A-L-E-X
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Science and Astronomy News

04 Mar 2020 13:53

Thanks, JD!  That object is quite small!
 
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JackDole
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04 Mar 2020 22:30

But unfortunately I made a mistake. I took the average diameter as the radius. In reality, the object is only half as big as in my script!
(But somehow I think this doesn't really matter.)
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JackDole
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09 May 2020 07:46

Betelgeuze wrote:
Source of the post Astronomers discovered most nearest black hole just 1000-light years from Earth that can also seen from naked eye https://www.eso.org/public/news/eso2007/

Look here: viewtopic.php?t=45&start=1020#p33594
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A-L-E-X
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12 May 2020 13:05

 
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JackDole
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12 May 2020 22:51

A-L-E-X wrote:
Source of the post or the main star of the system can?

Only the two stars. The black hole itself cannot be seen, especially since it probably does not have an accretion disk.
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pzampella
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14 May 2020 10:27

A-L-E-X wrote:

Given the characteristics of this system, it is not even possible for the Hubble telescope to see the black hole. In this case, the system can be seen with the naked eye, but it will look like a sole weak star. Using an amateur telescope, it is possible to identify that the system is actually binary. However, using a poweful telescope during several years allows you to see that one of those stars is actually moving around something you cannot be seen. That something is the black hole we are talking about.

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