🌌 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 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.54 AU - 0.58 AU

Year: 275 Days

Day: 14 Hours

Environment

Temp: -116 °C

Axial Tilt: 42.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.44 AU - 0.74 AU

Year: 297 Days

Day: 30.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.4

Radius: 14.5

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.74 AU - 0.92 AU

Year: 496 Days

Day: 5.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,856,870 km

• M1: 194,178 km (0.1 R)
• M2: 731,982 km (0.056 R)
• M3: 1,390,063 km (0.055 R)
• M4: 1,966,913 km (0.116 R)
• M5: 3,515,550 km (0.083 R)
• M6: 4,340,881 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.8

Radius: 11.8

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.56 AU - 2.52 AU

Year: 1911 Days

Day: 6.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,856,870 km

• M1: 147,803 km (0.05 R)
• M2: 541,993 km (0.085 R)
• M3: 968,048 km (0.115 R)
• M4: 1,346,231 km (0.057 R)
• M5: 1,965,417 km (0.118 R)
• M6: 3,276,792 km (0.085 R)
• M7: 3,777,197 km (0.098 R)
• M8: 4,232,722 km (0.119 R)
• M9: 5,754,282 km (0.076 R)
• M10: 6,186,022 km (0.096 R)
• M11: 7,115,024 km (0.069 R)
• M12: 7,755,752 km (0.044 R)
• M13: 10,012,885 km (0.117 R)
• M14: 10,710,609 km (0.115 R)
• M15: 12,837,891 km (0.076 R)
• M16: 13,286,834 km (0.113 R)
• M17: 14,829,487 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589

Radius: 12.6

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 4.12 AU - 4.8 AU

Year: 6179 Days

Day: 11.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 52,856,870 km

• M1: 184,005 km (0.106 R)
• M2: 634,744 km (0.062 R)
• M3: 1,045,240 km (0.068 R)
• M4: 1,654,104 km (0.093 R)
• M5: 2,665,236 km (0.089 R)
• M6: 3,297,735 km (0.069 R)
• M7: 3,957,761 km (0.091 R)
• M8: 4,837,546 km (0.1 R)
• M9: 6,315,723 km (0.088 R)
• M10: 7,265,071 km (0.085 R)
• M11: 8,864,871 km (0.101 R)
• M12: 15,298,327 km (0.076 R)
• M13: 17,006,286 km (0.117 R)
• M14: 18,434,946 km (0.107 R)
• M15: 21,382,323 km (0.101 R)
• M16: 21,977,423 km (0.115 R)
• M17: 22,431,004 km (0.091 R)
• M18: 22,890,718 km (0.115 R)
• M19: 25,120,175 km (0.059 R)
• M20: 27,753,247 km (0.095 R)
• M21: 28,194,561 km (0.112 R)
• M22: 31,036,023 km (0.059 R)
• M23: 31,607,337 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 959.3

Radius: 3.6

Gravity: 74.02 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.44 AU - 8.28 AU

Year: 11787 Days

Day: 22.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 52,856,870 km

• M1: 45,478 km (0.105 R)
• M2: 242,498 km (0.062 R)
• M3: 474,674 km (0.107 R)
• M4: 698,921 km (0.085 R)
• M5: 1,208,601 km (0.117 R)
• M6: 2,004,163 km (0.052 R)
• M7: 2,116,361 km (0.111 R)
• M8: 2,353,623 km (0.091 R)
• M9: 2,811,393 km (0.06 R)
• M10: 4,732,828 km (0.114 R)
• M11: 4,966,649 km (0.095 R)
• M12: 6,213,248 km (0.067 R)
• M13: 7,209,570 km (0.037 R)
• M14: 7,609,146 km (0.12 R)
• M15: 8,023,233 km (0.1 R)
• M16: 8,997,265 km (0.119 R)
• M17: 10,489,503 km (0.112 R)
• M18: 10,944,281 km (0.069 R)
• M19: 11,771,856 km (0.115 R)
• M20: 12,960,412 km (0.086 R)
• M21: 13,616,997 km (0.096 R)
• M22: 16,089,700 km (0.084 R)
• M23: 16,314,695 km (0.073 R)
• M24: 18,190,203 km (0.056 R)
• M25: 20,031,304 km (0.117 R)
• M26: 20,907,798 km (0.036 R)
• M27: 23,497,487 km (0.068 R)
• M28: 26,709,653 km (0.073 R)
• M29: 27,025,005 km (0.116 R)
• M30: 27,342,900 km (0.054 R)
• M31: 29,080,180 km (0.066 R)
• M32: 32,057,926 km (0.107 R)
• M33: 34,234,426 km (0.087 R)
• M34: 39,555,472 km (0.102 R)
• M35: 40,654,119 km (0.092 R)
• M36: 43,344,936 km (0.08 R)
• M37: 45,700,803 km (0.072 R)
• M38: 50,826,774 km (0.111 R)
• M39: 51,149,158 km (0.118 R)
• M40: 51,310,873 km (0.068 R)
• M41: 52,947,025 km (0.109 R)
• M42: 56,150,663 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 334.4

Radius: 4.8

Gravity: 14.51 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 7.07 AU - 10.15 AU

Year: 16573 Days

Day: 17.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 52,856,870 km

• M1: 66,721 km (0.066 R)
• M2: 264,040 km (0.111 R)
• M3: 562,787 km (0.093 R)
• M4: 826,678 km (0.098 R)
• M5: 1,256,323 km (0.063 R)
• M6: 2,342,852 km (0.044 R)
• M7: 2,734,051 km (0.096 R)
• M8: 3,049,253 km (0.104 R)
• M9: 3,413,375 km (0.08 R)
• M10: 3,593,042 km (0.098 R)
• M11: 6,120,348 km (0.085 R)
• M12: 6,463,376 km (0.096 R)
• M13: 7,483,334 km (0.073 R)
• M14: 8,796,056 km (0.094 R)
• M15: 9,282,099 km (0.103 R)
• M16: 9,734,782 km (0.116 R)
• M17: 12,043,676 km (0.12 R)
• M18: 14,425,723 km (0.087 R)
• M19: 20,514,356 km (0.103 R)
• M20: 21,023,587 km (0.096 R)
• M21: 22,244,455 km (0.063 R)
• M22: 23,789,652 km (0.119 R)
• M23: 24,163,347 km (0.101 R)
• M24: 26,090,766 km (0.103 R)
• M25: 27,807,701 km (0.097 R)
• M26: 32,141,701 km (0.083 R)
• M27: 42,254,068 km (0.087 R)
• M28: 43,077,754 km (0.117 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 11,506 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit