🌌 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: 2.67

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.44 AU - 0.68 AU

Year: 271 Days

Day: 22.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 25 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.6

Radius: 10.3

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.7 AU - 0.92 AU

Year: 471 Days

Day: 6.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 92,499,083 km

• M1: 133,292 km (0.043 R)
• M2: 462,407 km (0.103 R)
• M3: 865,124 km (0.092 R)
• M4: 1,250,189 km (0.103 R)
• M5: 1,690,306 km (0.112 R)
• M6: 2,065,498 km (0.102 R)
• M7: 2,457,295 km (0.096 R)
• M8: 3,098,920 km (0.108 R)
• M9: 3,743,986 km (0.115 R)
• M10: 4,274,011 km (0.069 R)
• M11: 4,837,995 km (0.069 R)
• M12: 5,724,063 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.4

Radius: 15

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.45 AU - 1.57 AU

Year: 1198 Days

Day: 10.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 92,499,083 km

• M1: 186,549 km (0.04 R)
• M2: 736,470 km (0.108 R)
• M3: 1,316,611 km (0.052 R)
• M4: 1,833,920 km (0.111 R)
• M5: 2,500,528 km (0.062 R)
• M6: 3,229,220 km (0.117 R)
• M7: 3,705,090 km (0.12 R)
• M8: 4,586,521 km (0.092 R)
• M9: 5,404,971 km (0.043 R)
• M10: 6,059,911 km (0.094 R)
• M11: 6,540,569 km (0.081 R)
• M12: 7,579,376 km (0.049 R)
• M13: 9,001,453 km (0.119 R)
• M14: 9,629,465 km (0.069 R)
• M15: 10,195,394 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.5

Radius: 12.9

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.92 AU - 2.74 AU

Year: 2296 Days

Day: 6.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 92,499,083 km

• M1: 161,416 km (0.069 R)
• M2: 746,493 km (0.093 R)
• M3: 1,764,507 km (0.083 R)
• M4: 2,605,247 km (0.1 R)
• M5: 3,324,513 km (0.056 R)
• M6: 4,648,305 km (0.083 R)
• M7: 6,200,981 km (0.096 R)
• M8: 9,317,105 km (0.116 R)
• M9: 9,768,891 km (0.065 R)
• M10: 11,986,529 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.5

Radius: 12.9

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.37 AU - 3.61 AU

Year: 4210 Days

Day: 10.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 92,499,083 km

• M1: 178,919 km (0.091 R)
• M2: 686,205 km (0.084 R)
• M3: 2,361,402 km (0.032 R)
• M4: 3,677,116 km (0.119 R)
• M5: 5,433,993 km (0.091 R)
• M6: 6,098,058 km (0.12 R)
• M7: 7,272,551 km (0.086 R)
• M8: 8,946,401 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.5

Radius: 10

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 4.46 AU - 5.56 AU

Year: 7241 Days

Day: 11.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 92,499,083 km

• M1: 124,465 km (0.111 R)
• M2: 440,267 km (0.1 R)
• M3: 1,086,978 km (0.12 R)
• M4: 2,473,152 km (0.084 R)
• M5: 4,700,515 km (0.114 R)
• M6: 5,927,068 km (0.084 R)
• M7: 8,149,793 km (0.082 R)
• M8: 9,320,845 km (0.12 R)
• M9: 10,098,155 km (0.096 R)
• M10: 12,036,645 km (0.072 R)
• M11: 14,211,199 km (0.093 R)
• M12: 16,057,387 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.4

Radius: 14.4

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 4.42 AU - 5.92 AU

Year: 7590 Days

Day: 8.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 92,499,083 km

• M1: 179,069 km (0.057 R)
• M2: 659,278 km (0.118 R)
• M3: 1,266,496 km (0.098 R)
• M4: 1,981,573 km (0.112 R)
• M5: 2,434,107 km (0.109 R)
• M6: 4,941,367 km (0.119 R)
• M7: 6,697,048 km (0.115 R)
• M8: 8,680,566 km (0.1 R)
• M9: 12,427,245 km (0.116 R)
• M10: 13,939,230 km (0.098 R)
• M11: 17,201,362 km (0.069 R)
• M12: 17,833,263 km (0.11 R)
• M13: 23,154,459 km (0.098 R)
• M14: 26,341,193 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 693.3

Radius: 6.7

Gravity: 15.44 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.69 AU - 8.47 AU

Year: 12164 Days

Day: 19.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 92,499,083 km

• M1: 90,208 km (0.111 R)
• M2: 311,762 km (0.102 R)
• M3: 740,809 km (0.117 R)
• M4: 969,993 km (0.071 R)
• M5: 1,606,532 km (0.113 R)
• M6: 1,894,358 km (0.06 R)
• M7: 2,471,506 km (0.102 R)
• M8: 3,613,985 km (0.061 R)
• M9: 3,940,558 km (0.101 R)
• M10: 4,467,142 km (0.117 R)
• M11: 5,106,224 km (0.068 R)
• M12: 6,101,050 km (0.118 R)
• M13: 7,693,818 km (0.067 R)
• M14: 10,117,304 km (0.104 R)
• M15: 15,329,743 km (0.096 R)
• M16: 17,528,981 km (0.085 R)
• M17: 18,544,302 km (0.116 R)
• M18: 23,183,182 km (0.106 R)
• M19: 23,554,783 km (0.111 R)
• M20: 28,540,731 km (0.085 R)
• M21: 28,967,533 km (0.112 R)
• M22: 29,834,004 km (0.049 R)
• M23: 32,653,026 km (0.111 R)
• M24: 34,547,534 km (0.074 R)
• M25: 36,139,854 km (0.09 R)
• M26: 39,075,861 km (0.096 R)
• M27: 39,734,541 km (0.054 R)
• M28: 45,562,275 km (0.117 R)
• M29: 48,225,267 km (0.088 R)
• M30: 54,838,690 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 969.3

Radius: 7.4

Gravity: 17.7 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 10.45 AU - 10.91 AU

Year: 22536 Days

Day: 18.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 92,499,083 km

• M1: 94,546 km (0.052 R)
• M2: 436,078 km (0.105 R)
• M3: 696,228 km (0.108 R)
• M4: 1,089,521 km (0.062 R)
• M5: 1,501,514 km (0.12 R)
• M6: 2,440,240 km (0.083 R)
• M7: 3,566,114 km (0.12 R)
• M8: 4,331,906 km (0.115 R)
• M9: 4,849,065 km (0.095 R)
• M10: 6,230,602 km (0.089 R)
• M11: 8,345,317 km (0.113 R)
• M12: 9,624,828 km (0.078 R)
• M13: 15,050,743 km (0.074 R)
• M14: 15,466,325 km (0.102 R)
• M15: 15,889,388 km (0.077 R)
• M16: 18,782,461 km (0.088 R)
• M17: 19,952,317 km (0.12 R)
• M18: 24,089,596 km (0.097 R)
• M19: 24,543,775 km (0.088 R)
• M20: 31,247,405 km (0.035 R)
• M21: 41,624,860 km (0.096 R)
• M22: 42,773,921 km (0.066 R)
• M23: 44,963,734 km (0.115 R)
• M24: 49,019,333 km (0.103 R)
• M25: 53,120,409 km (0.102 R)
• M26: 56,641,494 km (0.107 R)
• M27: 58,868,109 km (0.097 R)
• M28: 61,152,468 km (0.118 R)
• M29: 61,997,546 km (0.089 R)
• M30: 69,957,051 km (0.095 R)
• M31: 73,703,281 km (0.117 R)
• M32: 76,355,052 km (0.087 R)
• M33: 81,847,837 km (0.101 R)
• M34: 82,359,911 km (0.111 R)
• M35: 89,212,241 km (0.117 R)
• M36: 92,499,056 km (0.093 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 362 - 12,530 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit