🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.46 AU - 0.56 AU

Year: 235 Days

Day: 36.4 Hours

Environment

Temp: -108 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.53 AU - 0.75 AU

Year: 331 Days

Day: 36.9 Hours

Environment

Temp: -141 °C

Axial Tilt: 1.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.1

Radius: 14.1

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.74 AU - 1.12 AU

Year: 579 Days

Day: 12.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 89,081,764 km

• M1: 175,927 km (0.106 R)
• M2: 733,778 km (0.116 R)
• M3: 1,316,760 km (0.074 R)
• M4: 1,844,542 km (0.078 R)
• M5: 2,303,209 km (0.052 R)
• M6: 3,471,119 km (0.048 R)
• M7: 4,196,071 km (0.117 R)
• M8: 5,003,301 km (0.118 R)
• M9: 6,336,667 km (0.094 R)
• M10: 7,012,251 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.6

Radius: 15

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.84 AU - 2.02 AU

Year: 1731 Days

Day: 15 Hours

Environment

Temp: -191 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 89,081,764 km

• M1: 186,549 km (0.086 R)
• M2: 1,011,282 km (0.073 R)
• M3: 1,789,639 km (0.1 R)
• M4: 3,052,395 km (0.052 R)
• M5: 4,442,010 km (0.107 R)
• M6: 4,953,784 km (0.107 R)
• M7: 5,620,093 km (0.093 R)
• M8: 6,549,694 km (0.079 R)
• M9: 8,314,650 km (0.097 R)
• M10: 12,049,809 km (0.102 R)
• M11: 13,011,125 km (0.115 R)
• M12: 14,415,999 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529

Radius: 12.6

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.44 AU - 3.36 AU

Year: 3189 Days

Day: 14.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 89,081,764 km

• M1: 156,629 km (0.093 R)
• M2: 706,700 km (0.055 R)
• M3: 1,099,096 km (0.087 R)
• M4: 1,644,380 km (0.097 R)
• M5: 2,139,399 km (0.117 R)
• M6: 2,612,278 km (0.119 R)
• M7: 3,527,069 km (0.096 R)
• M8: 4,425,703 km (0.118 R)
• M9: 5,177,433 km (0.111 R)
• M10: 5,647,918 km (0.104 R)
• M11: 6,255,585 km (0.085 R)
• M12: 6,703,630 km (0.09 R)
• M13: 7,633,381 km (0.103 R)
• M14: 8,080,529 km (0.119 R)
• M15: 8,784,237 km (0.118 R)
• M16: 10,585,545 km (0.114 R)
• M17: 11,761,385 km (0.093 R)
• M18: 12,798,696 km (0.07 R)
• M19: 14,084,939 km (0.071 R)
• M20: 15,055,231 km (0.114 R)
• M21: 17,400,776 km (0.101 R)
• M22: 17,953,540 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 337.7

Radius: 3.5

Gravity: 27.57 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 4.61 AU - 7.55 AU

Year: 9680 Days

Day: 23.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 89,081,764 km

• M1: 43,533 km (0.093 R)
• M2: 161,117 km (0.081 R)
• M3: 274,063 km (0.073 R)
• M4: 530,025 km (0.103 R)
• M5: 1,267,692 km (0.099 R)
• M6: 1,784,703 km (0.109 R)
• M7: 1,903,035 km (0.037 R)
• M8: 2,502,024 km (0.066 R)
• M9: 2,904,742 km (0.07 R)
• M10: 3,483,985 km (0.076 R)
• M11: 3,861,570 km (0.095 R)
• M12: 4,009,971 km (0.087 R)
• M13: 5,010,930 km (0.118 R)
• M14: 7,567,558 km (0.106 R)
• M15: 8,444,052 km (0.107 R)
• M16: 10,160,538 km (0.069 R)
• M17: 10,976,594 km (0.112 R)
• M18: 12,043,676 km (0.118 R)
• M19: 13,233,876 km (0.079 R)
• M20: 13,345,776 km (0.113 R)
• M21: 15,101,606 km (0.044 R)
• M22: 15,594,680 km (0.115 R)
• M23: 15,719,595 km (0.096 R)
• M24: 16,354,189 km (0.085 R)
• M25: 17,404,665 km (0.096 R)
• M26: 24,837,136 km (0.061 R)
• M27: 27,933,064 km (0.104 R)
• M28: 32,685,190 km (0.094 R)
• M29: 33,612,846 km (0.104 R)
• M30: 35,736,837 km (0.11 R)
• M31: 36,172,167 km (0.073 R)
• M32: 36,281,523 km (0.083 R)
• M33: 36,831,744 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 448

Radius: 5.6

Gravity: 14.29 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 5.57 AU - 6.77 AU

Year: 9896 Days

Day: 21.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 89,081,764 km

• M1: 93,199 km (0.108 R)
• M2: 279,598 km (0.037 R)
• M3: 462,706 km (0.048 R)
• M4: 769,831 km (0.031 R)
• M5: 955,781 km (0.09 R)
• M6: 1,172,249 km (0.117 R)
• M7: 2,244,716 km (0.098 R)
• M8: 2,516,386 km (0.037 R)
• M9: 2,789,402 km (0.093 R)
• M10: 3,191,521 km (0.111 R)
• M11: 4,952,138 km (0.073 R)
• M12: 5,605,731 km (0.101 R)
• M13: 5,869,323 km (0.113 R)
• M14: 6,456,943 km (0.114 R)
• M15: 6,857,566 km (0.054 R)
• M16: 7,548,559 km (0.102 R)
• M17: 7,870,194 km (0.103 R)
• M18: 9,158,382 km (0.105 R)
• M19: 9,524,298 km (0.098 R)
• M20: 12,755,014 km (0.027 R)
• M21: 13,560,748 km (0.094 R)
• M22: 16,380,668 km (0.104 R)
• M23: 25,489,981 km (0.084 R)
• M24: 27,324,649 km (0.096 R)
• M25: 27,987,069 km (0.087 R)
• M26: 28,563,320 km (0.113 R)
• M27: 31,357,509 km (0.12 R)
• M28: 31,979,088 km (0.089 R)
• M29: 34,767,892 km (0.084 R)
• M30: 37,135,427 km (0.04 R)
• M31: 40,578,572 km (0.034 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 788.1

Radius: 4.6

Gravity: 37.24 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 8.3 AU - 13.74 AU

Year: 23620 Days

Day: 17.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 89,081,764 km

• M1: 57,146 km (0.09 R)
• M2: 239,506 km (0.119 R)
• M3: 824,135 km (0.102 R)
• M4: 1,168,808 km (0.118 R)
• M5: 1,828,984 km (0.092 R)
• M6: 2,032,437 km (0.078 R)
• M7: 3,227,424 km (0.035 R)
• M8: 3,434,169 km (0.107 R)
• M9: 3,649,739 km (0.098 R)
• M10: 4,176,174 km (0.095 R)
• M11: 5,137,490 km (0.118 R)
• M12: 6,374,216 km (0.066 R)
• M13: 6,605,793 km (0.079 R)
• M14: 6,891,226 km (0.1 R)
• M15: 8,278,148 km (0.075 R)
• M16: 11,319,323 km (0.101 R)
• M17: 13,386,017 km (0.087 R)
• M18: 14,075,364 km (0.061 R)
• M19: 15,775,245 km (0.088 R)
• M20: 19,382,798 km (0.069 R)
• M21: 20,563,723 km (0.093 R)
• M22: 25,304,031 km (0.1 R)
• M23: 28,173,019 km (0.11 R)
• M24: 29,942,911 km (0.089 R)
• M25: 31,251,594 km (0.12 R)
• M26: 35,261,714 km (0.047 R)
• M27: 38,829,175 km (0.096 R)
• M28: 39,446,116 km (0.086 R)
• M29: 39,601,399 km (0.1 R)
• M30: 44,116,711 km (0.063 R)
• M31: 50,776,509 km (0.098 R)
• M32: 54,536,652 km (0.077 R)
• M33: 58,882,470 km (0.033 R)
• M34: 82,063,707 km (0.057 R)
• M35: 82,570,395 km (0.062 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 15,081 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit