🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.5

Radius: 11.7

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.53 AU - 0.85 AU

Year: 376 Days

Day: 7.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 45,427,082 km

• M1: 148,850 km (0.068 R)
• M2: 644,767 km (0.085 R)
• M3: 1,287,589 km (0.055 R)
• M4: 2,091,528 km (0.12 R)
• M5: 2,849,540 km (0.098 R)
• M6: 3,329,749 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.1

Radius: 13.5

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.57 AU - 0.91 AU

Year: 418 Days

Day: 11.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,427,082 km

• M1: 167,849 km (0.108 R)
• M2: 687,701 km (0.108 R)
• M3: 1,221,766 km (0.094 R)
• M4: 2,159,445 km (0.064 R)
• M5: 2,685,880 km (0.116 R)
• M6: 3,449,876 km (0.082 R)
• M7: 4,924,164 km (0.088 R)
• M8: 5,477,227 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.9

Radius: 10.7

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.74 AU - 0.84 AU

Year: 461 Days

Day: 6.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,427,082 km

• M1: 132,993 km (0.11 R)
• M2: 576,700 km (0.076 R)
• M3: 918,980 km (0.063 R)
• M4: 1,308,533 km (0.108 R)
• M5: 2,118,306 km (0.106 R)
• M6: 2,471,955 km (0.083 R)
• M7: 2,988,217 km (0.099 R)
• M8: 3,622,662 km (0.119 R)
• M9: 4,132,940 km (0.067 R)
• M10: 4,690,641 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.8

Radius: 8.4

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.57 AU - 1.65 AU

Year: 1340 Days

Day: 8 Hours

Environment

Temp: -177 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,427,082 km

• M1: 104,419 km (0.026 R)
• M2: 376,239 km (0.102 R)
• M3: 673,639 km (0.071 R)
• M4: 1,970,952 km (0.053 R)
• M5: 2,535,086 km (0.032 R)
• M6: 4,071,306 km (0.038 R)
• M7: 4,812,414 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.5

Radius: 12.6

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.44 AU - 2.84 AU

Year: 2814 Days

Day: 13.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,427,082 km

• M1: 157,078 km (0.08 R)
• M2: 733,778 km (0.118 R)
• M3: 1,519,166 km (0.099 R)
• M4: 2,543,613 km (0.063 R)
• M5: 3,221,441 km (0.068 R)
• M6: 4,065,472 km (0.112 R)
• M7: 5,243,705 km (0.053 R)
• M8: 5,642,532 km (0.1 R)
• M9: 7,721,195 km (0.039 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.1

Radius: 12.8

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.27 AU - 4.87 AU

Year: 5386 Days

Day: 7.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,427,082 km

• M1: 159,172 km (0.062 R)
• M2: 606,171 km (0.115 R)
• M3: 1,010,085 km (0.108 R)
• M4: 1,435,990 km (0.119 R)
• M5: 1,984,416 km (0.114 R)
• M6: 3,511,212 km (0.084 R)
• M7: 4,599,536 km (0.069 R)
• M8: 5,065,085 km (0.103 R)
• M9: 5,472,141 km (0.116 R)
• M10: 6,352,374 km (0.098 R)
• M11: 6,931,617 km (0.045 R)
• M12: 8,001,093 km (0.068 R)
• M13: 9,696,934 km (0.1 R)
• M14: 11,324,708 km (0.093 R)
• M15: 15,115,518 km (0.09 R)
• M16: 15,596,625 km (0.12 R)
• M17: 16,908,449 km (0.089 R)
• M18: 18,428,214 km (0.093 R)
• M19: 22,740,971 km (0.095 R)
• M20: 29,138,823 km (0.063 R)
• M21: 30,168,206 km (0.068 R)
• M22: 30,931,903 km (0.111 R)
• M23: 32,398,560 km (0.073 R)
• M24: 33,199,507 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 135.9

Radius: 4.8

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 8.2 AU - 11.78 AU

Year: 20714 Days

Day: 17.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,427,082 km

• M1: 59,690 km (0.119 R)
• M2: 215,870 km (0.097 R)
• M3: 536,159 km (0.072 R)
• M4: 866,321 km (0.069 R)
• M5: 1,309,281 km (0.073 R)
• M6: 2,089,433 km (0.051 R)
• M7: 2,339,112 km (0.095 R)
• M8: 2,648,630 km (0.045 R)
• M9: 3,302,223 km (0.115 R)
• M10: 6,007,252 km (0.085 R)
• M11: 9,282,697 km (0.101 R)
• M12: 9,957,384 km (0.115 R)
• M13: 12,347,060 km (0.112 R)
• M14: 16,434,822 km (0.063 R)
• M15: 19,122,647 km (0.108 R)
• M16: 24,982,396 km (0.114 R)
• M17: 34,473,184 km (0.116 R)
• M18: 38,103,026 km (0.099 R)
• M19: 39,202,720 km (0.093 R)
• M20: 39,822,804 km (0.077 R)
• M21: 43,415,995 km (0.046 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 11,795 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit