🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.51 AU - 0.57 AU

Year: 256 Days

Day: 39.1 Hours

Environment

Temp: -112 °C

Axial Tilt: 10.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497

Radius: 8.3

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.74 AU - 0.94 AU

Year: 497 Days

Day: 9.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 85,980,857 km

• M1: 103,372 km (0.063 R)
• M2: 390,600 km (0.089 R)
• M3: 988,992 km (0.102 R)
• M4: 2,977,147 km (0.091 R)
• M5: 3,256,895 km (0.109 R)
• M6: 5,132,105 km (0.058 R)
• M7: 5,602,739 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.2

Radius: 11.5

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.9 AU - 0.9 AU

Year: 551 Days

Day: 6.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,980,857 km

• M1: 143,016 km (0.115 R)
• M2: 548,127 km (0.038 R)
• M3: 971,040 km (0.114 R)
• M4: 1,337,704 km (0.106 R)
• M5: 1,855,163 km (0.029 R)
• M6: 2,357,064 km (0.092 R)
• M7: 3,027,861 km (0.044 R)
• M8: 3,755,355 km (0.061 R)
• M9: 5,036,661 km (0.078 R)
• M10: 5,750,841 km (0.088 R)
• M11: 6,114,065 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.5

Radius: 14.3

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.04 AU - 1.62 AU

Year: 990 Days

Day: 7.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,980,857 km

• M1: 178,021 km (0.079 R)
• M2: 735,872 km (0.062 R)
• M3: 1,259,016 km (0.035 R)
• M4: 1,728,155 km (0.089 R)
• M5: 2,541,518 km (0.085 R)
• M6: 3,077,527 km (0.105 R)
• M7: 3,598,876 km (0.11 R)
• M8: 4,987,892 km (0.096 R)
• M9: 6,460,982 km (0.09 R)
• M10: 7,494,405 km (0.064 R)
• M11: 9,564,989 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.6

Radius: 13.1

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.36 AU - 1.5 AU

Year: 1104 Days

Day: 9.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,980,857 km

• M1: 164,109 km (0.103 R)
• M2: 627,264 km (0.112 R)
• M3: 1,132,157 km (0.071 R)
• M4: 1,574,817 km (0.11 R)
• M5: 2,299,918 km (0.091 R)
• M6: 2,982,383 km (0.075 R)
• M7: 3,743,238 km (0.076 R)
• M8: 4,300,191 km (0.105 R)
• M9: 5,206,305 km (0.112 R)
• M10: 5,740,669 km (0.049 R)
• M11: 6,739,534 km (0.042 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 992.4

Radius: 5.9

Gravity: 28.51 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 5.56 AU - 9.18 AU

Year: 12919 Days

Day: 22 Hours

Environment

Temp: -224 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 85,980,857 km

• M1: 73,303 km (0.109 R)
• M2: 290,220 km (0.096 R)
• M3: 579,841 km (0.108 R)
• M4: 928,853 km (0.106 R)
• M5: 1,138,889 km (0.046 R)
• M6: 1,576,612 km (0.095 R)
• M7: 2,081,954 km (0.06 R)
• M8: 2,511,000 km (0.114 R)
• M9: 4,217,014 km (0.063 R)
• M10: 4,868,364 km (0.115 R)
• M11: 5,254,176 km (0.112 R)
• M12: 6,206,666 km (0.088 R)
• M13: 7,773,405 km (0.119 R)
• M14: 8,748,932 km (0.074 R)
• M15: 9,005,193 km (0.087 R)
• M16: 9,913,701 km (0.103 R)
• M17: 10,192,103 km (0.036 R)
• M18: 11,238,091 km (0.057 R)
• M19: 11,974,113 km (0.117 R)
• M20: 13,004,692 km (0.058 R)
• M21: 15,314,633 km (0.07 R)
• M22: 19,574,283 km (0.118 R)
• M23: 20,909,594 km (0.11 R)
• M24: 22,879,349 km (0.03 R)
• M25: 25,072,005 km (0.084 R)
• M26: 28,730,121 km (0.059 R)
• M27: 29,870,207 km (0.099 R)
• M28: 31,636,359 km (0.066 R)
• M29: 45,681,505 km (0.115 R)
• M30: 46,452,682 km (0.12 R)
• M31: 48,979,091 km (0.074 R)
• M32: 54,995,319 km (0.096 R)
• M33: 61,298,924 km (0.104 R)
• M34: 63,757,715 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 167.9

Radius: 4

Gravity: 10.49 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 7.81 AU - 10.35 AU

Year: 17666 Days

Day: 21.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 85,980,857 km

• M1: 51,013 km (0.104 R)
• M2: 229,034 km (0.079 R)
• M3: 354,846 km (0.105 R)
• M4: 647,609 km (0.025 R)
• M5: 883,226 km (0.088 R)
• M6: 1,232,088 km (0.074 R)
• M7: 2,196,546 km (0.083 R)
• M8: 2,707,572 km (0.117 R)
• M9: 3,507,023 km (0.06 R)
• M10: 3,679,060 km (0.111 R)
• M11: 5,824,144 km (0.054 R)
• M12: 6,531,892 km (0.032 R)
• M13: 6,868,487 km (0.111 R)
• M14: 7,021,675 km (0.112 R)
• M15: 8,906,459 km (0.085 R)
• M16: 10,637,905 km (0.047 R)
• M17: 11,474,755 km (0.104 R)
• M18: 11,690,774 km (0.093 R)
• M19: 12,298,441 km (0.112 R)
• M20: 12,467,786 km (0.057 R)
• M21: 13,219,665 km (0.102 R)
• M22: 16,190,080 km (0.074 R)
• M23: 20,432,376 km (0.11 R)
• M24: 26,563,346 km (0.053 R)
• M25: 35,612,970 km (0.11 R)
• M26: 43,314,567 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 870.4

Radius: 3.3

Gravity: 79.93 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 8.35 AU - 12.23 AU

Year: 21313 Days

Day: 18 Hours

Environment

Temp: -236 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 85,980,857 km

• M1: 41,738 km (0.077 R)
• M2: 149,299 km (0.065 R)
• M3: 441,314 km (0.119 R)
• M4: 1,214,286 km (0.08 R)
• M5: 1,534,126 km (0.076 R)
• M6: 1,751,492 km (0.102 R)
• M7: 1,988,904 km (0.105 R)
• M8: 2,202,679 km (0.045 R)
• M9: 2,626,191 km (0.036 R)
• M10: 5,920,934 km (0.119 R)
• M11: 6,272,639 km (0.113 R)
• M12: 6,684,930 km (0.04 R)
• M13: 8,189,735 km (0.097 R)
• M14: 8,351,600 km (0.112 R)
• M15: 8,681,763 km (0.086 R)
• M16: 9,784,898 km (0.092 R)
• M17: 12,619,478 km (0.099 R)
• M18: 17,512,376 km (0.118 R)
• M19: 21,427,801 km (0.069 R)
• M20: 23,316,923 km (0.098 R)
• M21: 24,191,172 km (0.112 R)
• M22: 25,657,830 km (0.054 R)
• M23: 26,589,226 km (0.05 R)
• M24: 32,520,483 km (0.104 R)
• M25: 33,199,059 km (0.095 R)
• M26: 35,149,067 km (0.095 R)
• M27: 35,291,185 km (0.107 R)
• M28: 36,442,191 km (0.076 R)
• M29: 36,880,064 km (0.085 R)
• M30: 37,469,479 km (0.081 R)
• M31: 43,877,355 km (0.098 R)
• M32: 44,705,528 km (0.044 R)
• M33: 63,109,807 km (0.074 R)
• M34: 69,614,322 km (0.09 R)
• M35: 72,336,405 km (0.102 R)
• M36: 74,658,313 km (0.047 R)
• M37: 76,075,155 km (0.116 R)
• M38: 79,940,465 km (0.083 R)
• M39: 80,926,913 km (0.103 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 233 - 19,746 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit