🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.8

Radius: 10

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.76 AU - 0.86 AU

Year: 512 Days

Day: 5.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 165.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,576,912 km

• M1: 124,914 km (0.113 R)
• M2: 483,052 km (0.083 R)
• M3: 1,041,500 km (0.089 R)
• M4: 1,684,771 km (0.057 R)
• M5: 2,092,276 km (0.118 R)
• M6: 2,915,214 km (0.09 R)
• M7: 3,634,779 km (0.114 R)
• M8: 4,726,694 km (0.069 R)
• M9: 6,134,709 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53.8

Radius: 9.3

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.15 AU - 1.45 AU

Year: 1042 Days

Day: 9.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,576,912 km

• M1: 115,938 km (0.072 R)
• M2: 767,736 km (0.096 R)
• M3: 1,135,897 km (0.069 R)
• M4: 1,453,792 km (0.1 R)
• M5: 1,910,514 km (0.095 R)
• M6: 2,611,979 km (0.065 R)
• M7: 3,248,817 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.9

Radius: 13.7

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.49 AU - 1.85 AU

Year: 1517 Days

Day: 7.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,576,912 km

• M1: 170,392 km (0.101 R)
• M2: 822,040 km (0.114 R)
• M3: 1,625,381 km (0.073 R)
• M4: 2,171,563 km (0.1 R)
• M5: 2,968,471 km (0.103 R)
• M6: 3,726,483 km (0.103 R)
• M7: 4,570,813 km (0.116 R)
• M8: 5,405,569 km (0.085 R)
• M9: 6,217,437 km (0.086 R)
• M10: 7,684,095 km (0.087 R)
• M11: 9,894,852 km (0.084 R)
• M12: 10,753,394 km (0.114 R)
• M13: 13,712,290 km (0.078 R)
• M14: 14,217,931 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.3

Radius: 11.5

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.09 AU - 2.95 AU

Year: 2812 Days

Day: 12.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,576,912 km

• M1: 143,614 km (0.074 R)
• M2: 575,503 km (0.1 R)
• M3: 1,282,353 km (0.099 R)
• M4: 1,655,600 km (0.077 R)
• M5: 2,149,123 km (0.1 R)
• M6: 3,244,179 km (0.064 R)
• M7: 3,898,371 km (0.108 R)
• M8: 4,801,493 km (0.111 R)
• M9: 5,204,211 km (0.096 R)
• M10: 5,862,591 km (0.118 R)
• M11: 6,601,305 km (0.107 R)
• M12: 7,484,531 km (0.046 R)
• M13: 7,998,549 km (0.05 R)
• M14: 9,783,402 km (0.095 R)
• M15: 11,332,637 km (0.046 R)
• M16: 12,478,706 km (0.12 R)
• M17: 13,243,600 km (0.064 R)
• M18: 13,784,845 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.3

Radius: 12.3

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.23 AU - 3.17 AU

Year: 3119 Days

Day: 12.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,576,912 km

• M1: 154,086 km (0.103 R)
• M2: 651,499 km (0.091 R)
• M3: 1,152,352 km (0.102 R)
• M4: 1,688,212 km (0.101 R)
• M5: 2,612,577 km (0.068 R)
• M6: 3,025,168 km (0.101 R)
• M7: 3,517,046 km (0.084 R)
• M8: 4,101,674 km (0.096 R)
• M9: 4,684,807 km (0.053 R)
• M10: 6,716,496 km (0.115 R)
• M11: 7,114,725 km (0.11 R)
• M12: 7,589,250 km (0.104 R)
• M13: 8,569,116 km (0.118 R)
• M14: 9,106,770 km (0.116 R)
• M15: 10,138,996 km (0.092 R)
• M16: 10,895,213 km (0.054 R)
• M17: 11,851,891 km (0.117 R)
• M18: 12,994,221 km (0.084 R)
• M19: 15,993,658 km (0.07 R)
• M20: 17,334,504 km (0.088 R)
• M21: 17,923,919 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.8

Radius: 13.9

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.88 AU - 3.08 AU

Year: 3616 Days

Day: 6.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 37,576,912 km

• M1: 173,833 km (0.115 R)
• M2: 867,817 km (0.115 R)
• M3: 1,504,805 km (0.101 R)
• M4: 2,090,181 km (0.076 R)
• M5: 3,463,789 km (0.112 R)
• M6: 3,927,692 km (0.08 R)
• M7: 4,566,475 km (0.091 R)
• M8: 5,918,391 km (0.073 R)
• M9: 6,614,919 km (0.104 R)
• M10: 7,585,809 km (0.086 R)
• M11: 8,039,539 km (0.065 R)
• M12: 8,614,893 km (0.11 R)
• M13: 9,548,084 km (0.114 R)
• M14: 11,196,802 km (0.103 R)
• M15: 12,045,471 km (0.071 R)
• M16: 12,530,318 km (0.115 R)
• M17: 13,166,258 km (0.103 R)
• M18: 13,633,602 km (0.077 R)
• M19: 14,112,016 km (0.12 R)
• M20: 16,837,839 km (0.096 R)
• M21: 18,937,445 km (0.093 R)
• M22: 20,081,121 km (0.1 R)
• M23: 21,079,537 km (0.116 R)

Asteroid Belt

Center: 3.7 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.1

Radius: 11.4

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 3.84 AU - 4.98 AU

Year: 6510 Days

Day: 9.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,576,912 km

• M1: 141,819 km (0.09 R)
• M2: 770,279 km (0.038 R)
• M3: 1,721,273 km (0.074 R)
• M4: 2,442,036 km (0.028 R)
• M5: 3,569,704 km (0.11 R)
• M6: 4,007,278 km (0.079 R)
• M7: 5,486,053 km (0.111 R)
• M8: 6,574,826 km (0.11 R)
• M9: 7,632,483 km (0.107 R)
• M10: 9,100,487 km (0.089 R)
• M11: 9,961,872 km (0.074 R)
• M12: 14,890,822 km (0.084 R)
• M13: 15,264,518 km (0.107 R)
• M14: 20,643,459 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 120.7

Radius: 4.4

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 8.1 AU - 8.32 AU

Year: 16536 Days

Day: 18.7 Hours

Environment

Temp: -240 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 37,576,912 km

• M1: 54,753 km (0.101 R)
• M2: 505,342 km (0.083 R)
• M3: 826,528 km (0.118 R)
• M4: 1,129,763 km (0.095 R)
• M5: 1,705,266 km (0.12 R)
• M6: 2,438,146 km (0.052 R)
• M7: 4,000,397 km (0.119 R)
• M8: 4,887,063 km (0.114 R)
• M9: 7,413,622 km (0.076 R)
• M10: 9,571,721 km (0.076 R)
• M11: 10,598,860 km (0.092 R)
• M12: 12,274,206 km (0.108 R)
• M13: 12,924,807 km (0.094 R)
• M14: 14,118,299 km (0.086 R)
• M15: 14,651,466 km (0.089 R)
• M16: 24,678,114 km (0.114 R)
• M17: 27,774,789 km (0.085 R)
• M18: 29,751,725 km (0.041 R)
• M19: 33,564,077 km (0.027 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: 537 - 18,897 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit