🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.63 AU - 0.71 AU

Year: 349 Days

Day: 36.3 Hours

Environment

Temp: -135 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.1

Radius: 10.6

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.77 AU - 1.03 AU

Year: 543 Days

Day: 5.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 75,732,011 km

• M1: 131,796 km (0.103 R)
• M2: 471,383 km (0.086 R)
• M3: 1,361,041 km (0.058 R)
• M4: 1,699,282 km (0.105 R)
• M5: 2,276,132 km (0.065 R)
• M6: 2,838,320 km (0.095 R)
• M7: 4,240,800 km (0.112 R)
• M8: 5,005,994 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.6

Radius: 9.7

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.95 AU - 2.51 AU

Year: 2117 Days

Day: 14.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 75,732,011 km

• M1: 121,473 km (0.111 R)
• M2: 496,515 km (0.117 R)
• M3: 820,245 km (0.091 R)
• M4: 1,346,530 km (0.111 R)
• M5: 4,210,582 km (0.106 R)
• M6: 4,549,870 km (0.087 R)
• M7: 5,084,233 km (0.091 R)
• M8: 5,973,892 km (0.049 R)
• M9: 6,320,061 km (0.082 R)
• M10: 6,744,620 km (0.1 R)
• M11: 7,165,439 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796.3

Radius: 8.6

Gravity: 10.77 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 4.73 AU - 5.65 AU

Year: 7518 Days

Day: 5.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 75,732,011 km

• M1: 111,600 km (0.12 R)
• M2: 653,294 km (0.114 R)
• M3: 1,240,466 km (0.064 R)
• M4: 2,929,725 km (0.063 R)
• M5: 4,258,902 km (0.054 R)
• M6: 4,732,229 km (0.099 R)
• M7: 5,428,009 km (0.117 R)
• M8: 7,683,197 km (0.069 R)
• M9: 9,310,822 km (0.11 R)
• M10: 11,786,517 km (0.049 R)
• M11: 12,889,353 km (0.08 R)
• M12: 16,408,792 km (0.119 R)
• M13: 16,745,088 km (0.069 R)
• M14: 17,501,305 km (0.103 R)
• M15: 30,204,558 km (0.085 R)
• M16: 32,895,225 km (0.083 R)
• M17: 33,215,664 km (0.083 R)
• M18: 36,763,976 km (0.104 R)
• M19: 39,585,691 km (0.076 R)
• M20: 40,925,789 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946.6

Radius: 11.3

Gravity: 7.41 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 4.91 AU - 5.59 AU

Year: 7648 Days

Day: 9.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 75,732,011 km

• M1: 147,952 km (0.081 R)
• M2: 546,930 km (0.059 R)
• M3: 1,006,943 km (0.1 R)
• M4: 2,217,190 km (0.104 R)
• M5: 3,804,423 km (0.09 R)
• M6: 4,169,592 km (0.072 R)
• M7: 4,910,849 km (0.096 R)
• M8: 6,471,753 km (0.118 R)
• M9: 7,465,682 km (0.072 R)
• M10: 8,825,227 km (0.09 R)
• M11: 9,516,669 km (0.067 R)
• M12: 10,194,197 km (0.11 R)
• M13: 11,645,596 km (0.102 R)
• M14: 12,251,916 km (0.066 R)
• M15: 12,706,095 km (0.101 R)
• M16: 14,573,077 km (0.109 R)
• M17: 20,859,927 km (0.08 R)
• M18: 22,003,154 km (0.09 R)
• M19: 23,708,271 km (0.06 R)
• M20: 26,054,264 km (0.096 R)
• M21: 26,616,902 km (0.107 R)
• M22: 28,059,025 km (0.082 R)
• M23: 31,944,681 km (0.089 R)
• M24: 32,589,298 km (0.05 R)
• M25: 34,127,313 km (0.085 R)
• M26: 35,943,581 km (0.119 R)
• M27: 37,466,039 km (0.102 R)
• M28: 38,062,934 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 595.5

Radius: 10.2

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 5.89 AU - 6.17 AU

Year: 9415 Days

Day: 7 Hours

Environment

Temp: -222 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 75,732,011 km

• M1: 134,189 km (0.117 R)
• M2: 526,884 km (0.055 R)
• M3: 1,130,511 km (0.087 R)
• M4: 1,522,607 km (0.064 R)
• M5: 2,240,079 km (0.089 R)
• M6: 2,627,387 km (0.111 R)
• M7: 3,016,192 km (0.1 R)
• M8: 3,373,133 km (0.102 R)
• M9: 3,783,629 km (0.032 R)
• M10: 4,504,093 km (0.101 R)
• M11: 4,852,506 km (0.104 R)
• M12: 6,395,159 km (0.081 R)
• M13: 6,761,674 km (0.105 R)
• M14: 7,904,602 km (0.028 R)
• M15: 9,080,441 km (0.116 R)
• M16: 12,215,863 km (0.083 R)
• M17: 14,396,551 km (0.065 R)
• M18: 17,525,241 km (0.118 R)
• M19: 18,538,467 km (0.105 R)
• M20: 19,820,820 km (0.091 R)
• M21: 20,365,656 km (0.105 R)
• M22: 21,566,927 km (0.103 R)
• M23: 23,327,095 km (0.034 R)
• M24: 23,934,612 km (0.092 R)
• M25: 32,713,015 km (0.087 R)
• M26: 33,364,664 km (0.099 R)
• M27: 33,693,779 km (0.094 R)
• M28: 34,024,989 km (0.105 R)
• M29: 35,144,878 km (0.108 R)
• M30: 35,943,282 km (0.101 R)
• M31: 42,771,976 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 652.5

Radius: 7.8

Gravity: 10.72 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 8.54 AU - 11.62 AU

Year: 20348 Days

Day: 23 Hours

Environment

Temp: -240 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 75,732,011 km

• M1: 96,939 km (0.028 R)
• M2: 516,412 km (0.117 R)
• M3: 1,999,525 km (0.046 R)
• M4: 2,483,624 km (0.072 R)
• M5: 3,043,569 km (0.038 R)
• M6: 4,480,905 km (0.1 R)
• M7: 4,901,425 km (0.096 R)
• M8: 6,409,072 km (0.099 R)
• M9: 7,604,060 km (0.114 R)
• M10: 8,151,887 km (0.099 R)
• M11: 10,548,894 km (0.112 R)
• M12: 13,167,455 km (0.074 R)
• M13: 13,957,182 km (0.07 R)
• M14: 20,677,118 km (0.082 R)
• M15: 24,835,939 km (0.106 R)
• M16: 28,327,554 km (0.108 R)
• M17: 32,261,529 km (0.077 R)
• M18: 33,298,990 km (0.048 R)
• M19: 37,246,579 km (0.091 R)
• M20: 37,671,885 km (0.065 R)
• M21: 41,952,479 km (0.066 R)
• M22: 46,546,330 km (0.116 R)
• M23: 53,597,327 km (0.085 R)
• M24: 54,321,081 km (0.096 R)
• M25: 73,708,217 km (0.063 R)
• M26: 75,053,401 km (0.113 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 310 - 11,407 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit