🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.9

Radius: 12.2

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.56 AU - 0.6 AU

Year: 295 Days

Day: 11.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,856,337 km

• M1: 151,692 km (0.085 R)
• M2: 607,068 km (0.093 R)
• M3: 1,031,777 km (0.081 R)
• M4: 1,442,423 km (0.059 R)
• M5: 2,342,254 km (0.101 R)
• M6: 2,847,296 km (0.041 R)
• M7: 3,268,265 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.3

Radius: 9.2

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.72 AU - 0.78 AU

Year: 433 Days

Day: 14.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,856,337 km

• M1: 114,442 km (0.085 R)
• M2: 411,843 km (0.077 R)
• M3: 734,526 km (0.062 R)
• M4: 1,123,031 km (0.076 R)
• M5: 1,866,981 km (0.086 R)
• M6: 2,359,757 km (0.088 R)
• M7: 3,033,845 km (0.092 R)
• M8: 3,442,995 km (0.059 R)
• M9: 3,877,128 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.2

Radius: 11.9

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.68 AU - 0.82 AU

Year: 433 Days

Day: 5.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,856,337 km

• M1: 147,952 km (0.114 R)
• M2: 545,583 km (0.112 R)
• M3: 970,292 km (0.112 R)
• M4: 1,409,062 km (0.111 R)
• M5: 2,278,675 km (0.092 R)
• M6: 2,909,080 km (0.055 R)
• M7: 3,339,024 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.8

Radius: 9.7

Gravity: 9.73 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.85 AU - 0.93 AU

Year: 560 Days

Day: 12 Hours

Environment

Temp: -169 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,856,337 km

• M1: 120,576 km (0.033 R)
• M2: 422,315 km (0.088 R)
• M3: 733,927 km (0.062 R)
• M4: 1,060,200 km (0.063 R)
• M5: 1,500,018 km (0.109 R)
• M6: 2,041,113 km (0.112 R)
• M7: 2,641,599 km (0.114 R)
• M8: 3,394,675 km (0.083 R)
• M9: 3,703,146 km (0.069 R)
• M10: 4,104,068 km (0.076 R)
• M11: 4,842,333 km (0.094 R)
• M12: 6,122,143 km (0.089 R)
• M13: 6,459,636 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.6

Radius: 8.6

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.37 AU - 1.43 AU

Year: 1105 Days

Day: 9.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,856,337 km

• M1: 107,411 km (0.079 R)
• M2: 409,749 km (0.105 R)
• M3: 834,457 km (0.104 R)
• M4: 1,122,582 km (0.091 R)
• M5: 1,547,291 km (0.114 R)
• M6: 1,863,840 km (0.057 R)
• M7: 2,144,186 km (0.06 R)
• M8: 2,431,414 km (0.068 R)
• M9: 3,059,127 km (0.092 R)
• M10: 3,938,314 km (0.097 R)
• M11: 4,752,276 km (0.118 R)
• M12: 5,154,245 km (0.095 R)
• M13: 5,751,141 km (0.107 R)
• M14: 6,026,401 km (0.047 R)
• M15: 6,561,063 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.2

Radius: 11.9

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.79 AU - 2.79 AU

Year: 3108 Days

Day: 12 Hours

Environment

Temp: -214 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,856,337 km

• M1: 147,952 km (0.111 R)
• M2: 568,771 km (0.091 R)
• M3: 1,225,955 km (0.12 R)
• M4: 1,625,381 km (0.115 R)
• M5: 2,125,935 km (0.111 R)
• M6: 2,964,282 km (0.104 R)
• M7: 3,406,344 km (0.093 R)
• M8: 3,795,448 km (0.069 R)
• M9: 4,642,172 km (0.07 R)
• M10: 5,314,016 km (0.08 R)
• M11: 6,624,044 km (0.102 R)
• M12: 7,724,486 km (0.089 R)
• M13: 8,467,539 km (0.086 R)
• M14: 9,947,062 km (0.095 R)
• M15: 12,307,417 km (0.086 R)
• M16: 16,125,454 km (0.08 R)
• M17: 17,610,811 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.8

Radius: 10.4

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 3.41 AU - 4.31 AU

Year: 5057 Days

Day: 5.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,856,337 km

• M1: 129,552 km (0.059 R)
• M2: 457,321 km (0.107 R)
• M3: 1,035,217 km (0.105 R)
• M4: 1,566,140 km (0.046 R)
• M5: 2,126,085 km (0.033 R)
• M6: 2,752,601 km (0.116 R)
• M7: 4,224,793 km (0.119 R)
• M8: 4,613,299 km (0.116 R)
• M9: 5,715,835 km (0.067 R)
• M10: 9,664,621 km (0.1 R)
• M11: 10,496,535 km (0.088 R)
• M12: 13,189,147 km (0.092 R)
• M13: 15,388,086 km (0.118 R)
• M14: 20,317,186 km (0.074 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.7

Radius: 9.4

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 3.93 AU - 4.53 AU

Year: 5801 Days

Day: 8.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,856,337 km

• M1: 140,622 km (0.114 R)
• M2: 867,967 km (0.077 R)
• M3: 1,248,993 km (0.098 R)
• M4: 1,829,133 km (0.111 R)
• M5: 2,291,690 km (0.103 R)
• M6: 3,383,006 km (0.054 R)
• M7: 5,598,252 km (0.064 R)
• M8: 11,732,363 km (0.119 R)
• M9: 14,177,241 km (0.095 R)
• M10: 16,333,096 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 400.9

Radius: 3.7

Gravity: 29.28 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 5.32 AU - 7.68 AU

Year: 11051 Days

Day: 16.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 42,856,337 km

• M1: 46,226 km (0.118 R)
• M2: 163,510 km (0.084 R)
• M3: 287,527 km (0.087 R)
• M4: 436,826 km (0.102 R)
• M5: 1,260,661 km (0.067 R)
• M6: 1,384,079 km (0.096 R)
• M7: 1,542,952 km (0.119 R)
• M8: 1,961,228 km (0.071 R)
• M9: 2,376,661 km (0.116 R)
• M10: 2,566,052 km (0.081 R)
• M11: 2,953,511 km (0.097 R)
• M12: 3,286,216 km (0.08 R)
• M13: 4,212,975 km (0.118 R)
• M14: 5,113,554 km (0.087 R)
• M15: 5,494,281 km (0.11 R)
• M16: 6,100,302 km (0.07 R)
• M17: 6,347,587 km (0.085 R)
• M18: 6,749,706 km (0.11 R)
• M19: 7,325,060 km (0.1 R)
• M20: 7,564,117 km (0.083 R)
• M21: 9,339,395 km (0.091 R)
• M22: 9,715,484 km (0.071 R)
• M23: 10,199,583 km (0.091 R)
• M24: 10,852,877 km (0.053 R)
• M25: 13,566,433 km (0.057 R)
• M26: 13,685,961 km (0.092 R)
• M27: 15,433,115 km (0.119 R)
• M28: 16,360,023 km (0.086 R)
• M29: 17,393,744 km (0.11 R)
• M30: 17,676,634 km (0.113 R)
• M31: 20,518,395 km (0.074 R)
• M32: 22,047,136 km (0.104 R)
• M33: 22,712,996 km (0.103 R)
• M34: 33,273,259 km (0.119 R)
• M35: 34,369,812 km (0.108 R)
• M36: 34,927,064 km (0.04 R)
• M37: 36,059,370 km (0.098 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: 496 - 19,702 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit