🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.7

Radius: 12.8

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.53 AU - 0.57 AU

Year: 277 Days

Day: 13.3 Hours

Environment

Temp: -136 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,418,706 km

• M1: 159,172 km (0.079 R)
• M2: 702,960 km (0.094 R)
• M3: 1,105,678 km (0.087 R)
• M4: 1,611,169 km (0.098 R)
• M5: 2,213,450 km (0.067 R)
• M6: 2,739,287 km (0.08 R)
• M7: 3,230,117 km (0.115 R)
• M8: 3,708,830 km (0.067 R)
• M9: 4,838,743 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.1

Radius: 14.2

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.65 AU - 1.01 AU

Year: 513 Days

Day: 14.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 21,418,706 km

• M1: 176,525 km (0.12 R)
• M2: 771,327 km (0.112 R)
• M3: 1,276,369 km (0.089 R)
• M4: 1,911,412 km (0.032 R)
• M5: 2,460,436 km (0.113 R)
• M6: 2,947,078 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.2

Radius: 9

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.02 AU - 1.04 AU

Year: 709 Days

Day: 6.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,418,706 km

• M1: 112,946 km (0.082 R)
• M2: 486,343 km (0.116 R)
• M3: 1,837,959 km (0.086 R)
• M4: 2,505,016 km (0.102 R)
• M5: 4,039,890 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.3

Radius: 12.2

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.64 AU - 3.22 AU

Year: 3402 Days

Day: 13.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,418,706 km

• M1: 153,039 km (0.081 R)
• M2: 600,187 km (0.093 R)
• M3: 1,387,371 km (0.067 R)
• M4: 1,823,748 km (0.111 R)
• M5: 2,490,505 km (0.053 R)
• M6: 3,221,590 km (0.119 R)
• M7: 3,604,860 km (0.059 R)
• M8: 4,127,256 km (0.119 R)
• M9: 4,561,538 km (0.085 R)
• M10: 5,545,294 km (0.076 R)
• M11: 6,099,554 km (0.063 R)
• M12: 6,792,940 km (0.104 R)
• M13: 7,760,689 km (0.094 R)
• M14: 9,254,573 km (0.077 R)
• M15: 10,791,093 km (0.103 R)
• M16: 12,069,407 km (0.106 R)
• M17: 13,283,842 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.8

Radius: 9.2

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 4.11 AU - 4.33 AU

Year: 5880 Days

Day: 11.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 21,418,706 km

• M1: 114,442 km (0.065 R)
• M2: 438,920 km (0.077 R)
• M3: 735,872 km (0.051 R)
• M4: 1,266,496 km (0.088 R)
• M5: 2,315,625 km (0.116 R)
• M6: 2,801,968 km (0.116 R)
• M7: 3,355,031 km (0.107 R)
• M8: 3,862,318 km (0.094 R)
• M9: 4,445,450 km (0.103 R)
• M10: 6,451,857 km (0.075 R)
• M11: 6,991,905 km (0.101 R)
• M12: 7,344,507 km (0.111 R)
• M13: 8,239,552 km (0.097 R)
• M14: 9,672,849 km (0.094 R)
• M15: 10,933,660 km (0.119 R)
• M16: 11,361,360 km (0.046 R)
• M17: 11,849,498 km (0.118 R)
• M18: 12,711,630 km (0.069 R)
• M19: 15,489,513 km (0.041 R)
• M20: 17,273,767 km (0.113 R)
• M21: 18,986,214 km (0.058 R)
• M22: 23,757,787 km (0.111 R)
• M23: 25,538,301 km (0.104 R)
• M24: 26,546,292 km (0.091 R)
• M25: 31,127,128 km (0.082 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 444.2

Radius: 7.7

Gravity: 7.49 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.51 AU - 8.29 AU

Year: 12293 Days

Day: 19 Hours

Environment

Temp: -235 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 21,418,706 km

• M1: 96,790 km (0.111 R)
• M2: 346,020 km (0.084 R)
• M3: 658,979 km (0.105 R)
• M4: 1,552,826 km (0.077 R)
• M5: 2,621,553 km (0.116 R)
• M6: 7,872,438 km (0.096 R)
• M7: 8,218,608 km (0.092 R)
• M8: 8,849,013 km (0.097 R)
• M9: 10,880,852 km (0.047 R)
• M10: 11,256,342 km (0.104 R)
• M11: 11,585,158 km (0.036 R)
• M12: 12,319,534 km (0.103 R)
• M13: 14,904,585 km (0.106 R)
• M14: 15,168,177 km (0.055 R)
• M15: 20,061,074 km (0.114 R)
• M16: 20,707,786 km (0.058 R)
• M17: 22,905,379 km (0.106 R)
• M18: 25,440,913 km (0.049 R)
• M19: 31,384,586 km (0.066 R)
• M20: 33,254,859 km (0.102 R)
• M21: 33,818,693 km (0.081 R)
• M22: 36,614,677 km (0.102 R)
• M23: 40,321,563 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 85.8

Radius: 7.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 5.55 AU - 8.99 AU

Year: 13295 Days

Day: 18.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 21,418,706 km

• M1: 99,632 km (0.081 R)
• M2: 594,502 km (0.088 R)
• M3: 1,284,896 km (0.11 R)
• M4: 1,892,862 km (0.076 R)
• M5: 3,022,625 km (0.111 R)
• M6: 4,802,241 km (0.034 R)
• M7: 5,973,443 km (0.114 R)
• M8: 10,224,566 km (0.073 R)
• M9: 13,189,147 km (0.12 R)
• M10: 14,292,730 km (0.11 R)
• M11: 15,286,509 km (0.112 R)
• M12: 17,165,907 km (0.118 R)
• M13: 17,971,641 km (0.047 R)
• M14: 19,326,100 km (0.043 R)
• M15: 19,725,227 km (0.077 R)
• M16: 20,129,889 km (0.076 R)
• M17: 23,268,752 km (0.116 R)
• M18: 27,548,597 km (0.037 R)
• M19: 28,054,238 km (0.025 R)
• M20: 28,652,181 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 19.9

Radius: 3.8

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 8.26 AU - 9.22 AU

Year: 17525 Days

Day: 17 Hours

Environment

Temp: -230 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,418,706 km

• M1: 66,721 km (0.103 R)
• M2: 671,694 km (0.063 R)
• M3: 1,334,563 km (0.081 R)
• M4: 1,806,394 km (0.063 R)
• M5: 2,395,959 km (0.081 R)
• M6: 3,000,484 km (0.102 R)
• M7: 4,025,978 km (0.119 R)
• M8: 11,071,738 km (0.055 R)
• M9: 17,798,107 km (0.08 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 200 - 11,420 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit