🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.1

Radius: 12.1

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.64 AU - 0.88 AU

Year: 442 Days

Day: 8.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 65,038,382 km

• M1: 150,495 km (0.097 R)
• M2: 538,253 km (0.117 R)
• M3: 919,578 km (0.095 R)
• M4: 1,782,010 km (0.067 R)
• M5: 2,312,035 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863

Radius: 8.2

Gravity: 12.83 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.32 AU - 1.66 AU

Year: 1213 Days

Day: 7.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,038,382 km

• M1: 102,325 km (0.049 R)
• M2: 435,031 km (0.118 R)
• M3: 728,990 km (0.1 R)
• M4: 1,195,885 km (0.117 R)
• M5: 1,722,470 km (0.086 R)
• M6: 2,481,679 km (0.119 R)
• M7: 3,028,758 km (0.1 R)
• M8: 3,478,300 km (0.105 R)
• M9: 3,954,620 km (0.087 R)
• M10: 4,326,071 km (0.113 R)
• M11: 4,996,868 km (0.094 R)
• M12: 5,801,705 km (0.049 R)
• M13: 6,989,063 km (0.075 R)
• M14: 7,348,696 km (0.097 R)
• M15: 8,735,319 km (0.094 R)
• M16: 9,152,996 km (0.056 R)
• M17: 9,615,254 km (0.064 R)
• M18: 9,931,952 km (0.057 R)
• M19: 10,255,682 km (0.117 R)
• M20: 10,856,018 km (0.071 R)
• M21: 11,980,994 km (0.1 R)
• M22: 12,274,056 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967.6

Radius: 9.3

Gravity: 11.19 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.41 AU - 1.73 AU

Year: 1312 Days

Day: 5.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,038,382 km

• M1: 115,639 km (0.1 R)
• M2: 554,260 km (0.103 R)
• M3: 895,343 km (0.11 R)
• M4: 1,500,167 km (0.084 R)
• M5: 2,283,911 km (0.076 R)
• M6: 2,719,689 km (0.052 R)
• M7: 3,241,038 km (0.082 R)
• M8: 4,560,940 km (0.114 R)
• M9: 6,280,268 km (0.109 R)
• M10: 7,298,731 km (0.099 R)
• M11: 7,735,556 km (0.074 R)
• M12: 8,247,779 km (0.032 R)
• M13: 9,058,450 km (0.093 R)
• M14: 9,467,301 km (0.106 R)
• M15: 10,629,527 km (0.031 R)
• M16: 11,262,924 km (0.067 R)
• M17: 12,108,751 km (0.099 R)
• M18: 12,682,758 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.4

Radius: 8.9

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 4.06 AU - 6.2 AU

Year: 7748 Days

Day: 8.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,038,382 km

• M1: 110,702 km (0.11 R)
• M2: 484,398 km (0.104 R)
• M3: 799,750 km (0.058 R)
• M4: 1,111,662 km (0.092 R)
• M5: 1,663,977 km (0.055 R)
• M6: 2,015,383 km (0.105 R)
• M7: 2,707,273 km (0.075 R)
• M8: 3,497,449 km (0.04 R)
• M9: 4,474,173 km (0.116 R)
• M10: 5,913,604 km (0.092 R)
• M11: 6,552,088 km (0.036 R)
• M12: 7,639,066 km (0.068 R)
• M13: 8,148,746 km (0.063 R)
• M14: 9,236,173 km (0.119 R)
• M15: 10,130,917 km (0.034 R)
• M16: 12,784,634 km (0.094 R)
• M17: 13,077,547 km (0.097 R)
• M18: 13,982,763 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.3

Radius: 13.8

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 4.53 AU - 5.85 AU

Year: 7885 Days

Day: 13.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,038,382 km

• M1: 326,572 km (0.03 R)
• M2: 1,551,180 km (0.05 R)
• M3: 2,373,370 km (0.078 R)
• M4: 4,539,398 km (0.115 R)
• M5: 5,767,896 km (0.097 R)
• M6: 6,980,237 km (0.102 R)
• M7: 10,787,054 km (0.057 R)
• M8: 13,480,713 km (0.105 R)
• M9: 14,889,326 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 798.1

Radius: 7.5

Gravity: 14.19 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 8.21 AU - 8.61 AU

Year: 16264 Days

Day: 18 Hours

Environment

Temp: -233 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 65,038,382 km

• M1: 93,947 km (0.097 R)
• M2: 805,136 km (0.116 R)
• M3: 1,262,008 km (0.113 R)
• M4: 2,188,766 km (0.105 R)
• M5: 2,879,759 km (0.089 R)
• M6: 4,257,406 km (0.074 R)
• M7: 4,518,155 km (0.067 R)
• M8: 5,144,521 km (0.087 R)
• M9: 6,027,298 km (0.05 R)
• M10: 9,608,372 km (0.113 R)
• M11: 12,326,865 km (0.097 R)
• M12: 13,544,890 km (0.102 R)
• M13: 14,619,602 km (0.08 R)
• M14: 17,264,193 km (0.086 R)
• M15: 19,579,369 km (0.037 R)
• M16: 25,770,477 km (0.047 R)
• M17: 28,093,433 km (0.077 R)
• M18: 29,599,285 km (0.084 R)
• M19: 34,831,620 km (0.08 R)
• M20: 36,840,420 km (0.088 R)
• M21: 37,942,807 km (0.076 R)
• M22: 38,925,216 km (0.085 R)
• M23: 43,328,480 km (0.098 R)
• M24: 44,866,945 km (0.087 R)
• M25: 48,707,272 km (0.075 R)
• M26: 57,584,110 km (0.115 R)
• M27: 58,508,475 km (0.116 R)
• M28: 59,442,564 km (0.107 R)
• M29: 59,818,953 km (0.063 R)
• M30: 62,693,027 km (0.107 R)
• M31: 64,858,157 km (0.113 R)
• M32: 66,463,791 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 486.2

Radius: 6.9

Gravity: 10.21 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 8.33 AU - 10.17 AU

Year: 18760 Days

Day: 23.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,038,382 km

• M1: 92,601 km (0.091 R)
• M2: 687,402 km (0.087 R)
• M3: 1,322,146 km (0.089 R)
• M4: 2,420,045 km (0.085 R)
• M5: 4,119,327 km (0.104 R)
• M6: 6,244,514 km (0.103 R)
• M7: 11,189,771 km (0.078 R)
• M8: 11,863,111 km (0.026 R)
• M9: 13,906,169 km (0.114 R)
• M10: 16,482,245 km (0.081 R)
• M11: 21,330,712 km (0.1 R)
• M12: 31,385,783 km (0.109 R)
• M13: 34,095,449 km (0.046 R)
• M14: 36,161,246 km (0.039 R)
• M15: 42,270,075 km (0.072 R)
• M16: 42,562,988 km (0.116 R)
• M17: 54,726,043 km (0.115 R)
• M18: 55,598,797 km (0.04 R)
• M19: 62,728,033 km (0.118 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 13,267 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit