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Take the Milkyway Galaxy and shrink it into a space small enough to fill up the stock system. Take the most extreme planets and stars you can imagine, and put them in one place. With a multitude of planets and stars to explore, the Extreme Galaxy system is the one system where you can let your curiosity guide you.

For those who want to a challenge, I suggest you design a rocket that could take off from TOI-849 B, the largest confirmed rock planet.

Scale:
- Radius 1/5 scale
- Star gravity 1/9.8 scale
- Planet gravity full scale

Features:
- 10 star systems
- 17 stars
- 23 planets and moons
- Earth and Moon launchpoints
- Real and hypothetical planets.

Warning:
Beware of the crushpoints of the stars. Pay particular attention to Sirius B and PSR J1311-3430.

GENERAL INFO

  • Created On: iOS
  • Game Version: 0.9.616.1

CELESTIAL BODIES

Name Parent Radius Surface Gravity Apoapsis Periapsis
Sagittarius A 440.0 Mm 2.50 km/s - -
PSR J1311-3430 Sagittarius A 2,800 m 186,194,623.59 km/s 89,772.3 Mm 89,592.9 Mm
PSR J1311-3430 B PSR J1311-3430 8,388 km 1.04 km/s 195.7 Mm 189.9 Mm
TOI-849 Sagittarius A 125.2 Mm 29.3 m/s 152,718.4 Mm 150,576.6 Mm
TOI-849 B TOI-849 3,892 km 42.7 m/s 349.0 Mm 344.3 Mm
Kepler-1625 Sagittarius A 130.8 Mm 30.3 m/s 223,423.3 Mm 221,181.9 Mm
Kepler-1625 B Kepler-1625 14,781 km 268.5 m/s 6,570.4 Mm 6,504.5 Mm
Kepler-1625 B I Kepler-1625 B 6,110 km 8.1 m/s 198.4 Mm 194.8 Mm
Kepler-1625 B II Kepler-1625 B 1,104 km 8.5 m/s 666.7 Mm 601.4 Mm
KOI 7235.01 Sagittarius A 126.6 Mm 18.2 m/s 300,581.9 Mm 298,771.6 Mm
KOI 7235.01 B KOI 7235.01 1,457 km 11.3 m/s 5,700.2 Mm 5,533.1 Mm
KOI 7235.01 B I KOI 7235.01 B 434 km 2.1 m/s 26,279 km 24,597 km
KOI 7235.01 C KOI 7235.01 3,664 km 8.8 m/s 13,143.9 Mm 13,012.1 Mm
Sol Sagittarius A 139.1 Mm 27.9 m/s 383,642.5 Mm 379,793.6 Mm
Earth Sol 1,274 km 9.8 m/s 7,502.4 Mm 7,337.6 Mm
Luna Earth 350 km 1.6 m/s 38,989 km 37,979 km
Jupiter Sol 13,980 km 24.8 m/s 20,533.9 Mm 20,001.8 Mm
HD 100546 Sagittarius A 264.4 Mm 18.6 m/s 490,841.5 Mm 486,182.0 Mm
HD 100546 B HD 100546 96,477 km 10.6 m/s 18,123.4 Mm 18,087.2 Mm
HD 100546 B I HD 100546 B 1,807 km 18.5 m/s 372.8 Mm 345.9 Mm
HD 100546 C HD 100546 21,178 km 18.6 m/s 37,673.4 Mm 35,837.4 Mm
EBLM J0555-57 Aa Sagittarius A 137.7 Mm 32.2 m/s 602,928.6 Mm 596,880.0 Mm
EBLM J0555-57 Ab EBLM J0555-57 Aa 11,746 km 317.4 m/s 724.6 Mm 694.9 Mm
EBLM J0555-57 B EBLM J0555-57 Aa 130.8 Mm 28.4 m/s 20,085.6 Mm 15,978.4 Mm
EBLM J0555-57 C EBLM J0555-57 B 805 km 5.9 m/s 5,072.7 Mm 4,921.3 Mm
EBLM J0555-57 D EBLM J0555-57 Aa 325 km 0.8 m/s 37,185.1 Mm 32,339.1 Mm
Sirius A Sagittarius A 238.1 Mm 19.7 m/s 722,838.6 Mm 709,826.2 Mm
Sirius B Sirius A 1,170 km 402.85 km/s 30,643.0 Mm 15,224.3 Mm
Sirius C Sirius A 2,588 km 35.1 m/s 55,634.9 Mm 46,861.6 Mm
Alpha Centauri A Sagittarius A 170.2 Mm 18.7 m/s 846,132.4 Mm 844,441.9 Mm
Alpha Centauri B Alpha Centauri A 120.1 Mm 34.0 m/s 20,230.4 Mm 13,184.1 Mm
Proxima Centauri Alpha Centauri A 21,455 km 143.3 m/s 43,607.5 Mm 36,264.8 Mm
Proxima Centauri B Proxima Centauri 1,363 km 10.0 m/s 436.8 Mm 425.4 Mm
Proxima Centauri C Proxima Centauri 2,946 km 12.6 m/s 8,730.1 Mm 8,435.5 Mm
Gliese 105 A Sagittarius A 118.2 Mm 17.4 m/s 1,009,083.1 Mm 990,916.9 Mm
Gliese 105 E Gliese 105 A 1,593 km 16.6 m/s 3,749.8 Mm 3,608.6 Mm
Gliese 105 E I Gliese 105 E 610 km 4.7 m/s 13,864 km 13,725 km
Gliese 105 C Gliese 105 A 14,680 km 203.8 m/s 11,944.8 Mm 11,174.2 Mm
Gliese 105 B Gliese 105 A 34,775 km 93.9 m/s 47,222.0 Mm 31,678.2 Mm
Gliese 105 D Gliese 105 B 2,080 km 21.4 m/s 409.6 Mm 398.9 Mm

13 Comments

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    8,944 Hyperant

    I love this so much because ever since ai joined JNO, this was the first system I downloaded and it brings so much memories

    5 months ago
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    @lordvader0219! I figured out the problem, it was a mod I downloaded thinking it would work on mobile, but my stupidity has thought me a lesson LOL

    +2 2.9 years ago
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    @lordvader0219, I’m not getting a error message, it just doesn’t appear in the planetary system menu

    2.9 years ago
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    Can anyone else please test out this system. I noticed that the game doesn't always download every celestial body.

    +1 3.0 years ago
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    @matrix501 well that’s terrifying! I never thought such a thing could happen. I uploaded this system on mobile so I have no way of knowing if the upload was currupted. The system looked fine on the website. And are you on PC or mobile? I’m not familiar with the process of how to download systems on PC. The small file might be because you already downloaded the planets so your computer is only loading the system.

    +1 3.0 years ago
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    Wow! something very wrong with this file! 1mb? When i checked inside the file it has one line of code no wonder it dont work.Can you please fix this file please I know a system this size is far larger then 1mb! It says simplerockets2://planetarysystem/SN2e8q I downloaded the other system and it works fine but this one needs to be fixed please thank you for your time!

    +1 3.0 years ago
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    @ILoveSpaceALot what error message are you getting? Are you on an old device?

    3.0 years ago
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    It won’t let me download!

    3.0 years ago
  • Profile image

    Thank you all for the upvotes. Ill be working on an update for this system and another system with the updates bases once 0.9.704 is released for mobile.

    +1 3.0 years ago
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    Aw man! I was gonna make a galaxy on iOS too!

    3.0 years ago
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    360 Mudit10x

    Looks nice

    +1 3.0 years ago
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    @TopSecret2 that may explain the popularity of the Canaan Trinary System. That system has 8 bases.

    +1 3.0 years ago
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    TRAPPIST-1 might be a really cool addition to the extreme systems here! A lot to explore, but I’d be happy to try it out. For feedback: it might be a good idea to add bases to the different terrestrial planets with habitable atmospheres instead.

    +1 3.0 years ago

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