🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191

Radius: 13

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.65 AU - 0.71 AU

Year: 380 Days

Day: 10.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 48,723,019 km

• M1: 165,904 km (0.061 R)
• M2: 579,093 km (0.09 R)
• M3: 1,072,766 km (0.061 R)
• M4: 1,722,769 km (0.11 R)
• M5: 2,259,377 km (0.112 R)
• M6: 2,725,374 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.7

Radius: 8.3

Gravity: 13.12 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.13 AU - 2.31 AU

Year: 2243 Days

Day: 7 Hours

Environment

Temp: -210 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,723,019 km

• M1: 103,223 km (0.031 R)
• M2: 363,523 km (0.116 R)
• M3: 765,941 km (0.079 R)
• M4: 1,179,430 km (0.089 R)
• M5: 1,670,559 km (0.079 R)
• M6: 2,374,567 km (0.092 R)
• M7: 2,945,133 km (0.077 R)
• M8: 3,511,960 km (0.098 R)
• M9: 5,755,329 km (0.086 R)
• M10: 8,379,276 km (0.059 R)
• M11: 9,300,500 km (0.1 R)
• M12: 13,215,476 km (0.027 R)
• M13: 13,759,863 km (0.098 R)
• M14: 14,177,839 km (0.118 R)
• M15: 14,652,214 km (0.11 R)
• M16: 15,284,714 km (0.117 R)
• M17: 19,179,195 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.9

Radius: 10.5

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.14 AU - 2.78 AU

Year: 2617 Days

Day: 13.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 48,723,019 km

• M1: 131,347 km (0.092 R)
• M2: 582,085 km (0.082 R)
• M3: 920,177 km (0.11 R)
• M4: 1,304,194 km (0.094 R)
• M5: 1,864,289 km (0.107 R)
• M6: 3,344,111 km (0.112 R)
• M7: 3,799,038 km (0.082 R)
• M8: 4,969,641 km (0.09 R)
• M9: 5,713,591 km (0.052 R)
• M10: 7,302,919 km (0.119 R)
• M11: 8,426,848 km (0.106 R)
• M12: 9,342,836 km (0.052 R)
• M13: 10,436,995 km (0.049 R)
• M14: 11,133,373 km (0.114 R)
• M15: 11,778,140 km (0.111 R)
• M16: 13,816,411 km (0.034 R)
• M17: 15,039,972 km (0.111 R)
• M18: 16,851,452 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.3

Radius: 12.6

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.87 AU - 3.07 AU

Year: 2633 Days

Day: 7.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,723,019 km

• M1: 156,779 km (0.079 R)
• M2: 838,945 km (0.078 R)
• M3: 1,390,063 km (0.066 R)
• M4: 1,921,585 km (0.092 R)
• M5: 2,826,203 km (0.074 R)
• M6: 4,769,479 km (0.098 R)
• M7: 6,724,574 km (0.106 R)
• M8: 7,695,015 km (0.099 R)
• M9: 10,171,608 km (0.083 R)
• M10: 12,190,132 km (0.038 R)
• M11: 12,875,141 km (0.111 R)
• M12: 13,450,494 km (0.059 R)
• M13: 15,875,027 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.9

Radius: 11.2

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.03 AU - 3.29 AU

Year: 2942 Days

Day: 7.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,723,019 km

• M1: 140,323 km (0.117 R)
• M2: 1,990,250 km (0.063 R)
• M3: 2,397,904 km (0.1 R)
• M4: 2,816,928 km (0.113 R)
• M5: 3,537,840 km (0.117 R)
• M6: 4,643,967 km (0.106 R)
• M7: 6,117,356 km (0.048 R)
• M8: 6,689,568 km (0.099 R)
• M9: 7,184,139 km (0.065 R)
• M10: 8,062,428 km (0.096 R)
• M11: 12,023,181 km (0.057 R)
• M12: 15,937,559 km (0.108 R)
• M13: 16,424,649 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563.9

Radius: 11.5

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 2.58 AU - 3.34 AU

Year: 3454 Days

Day: 11.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,723,019 km

• M1: 147,952 km (0.084 R)
• M2: 533,616 km (0.11 R)
• M3: 1,076,955 km (0.095 R)
• M4: 1,581,100 km (0.119 R)
• M5: 1,939,088 km (0.086 R)
• M6: 2,512,646 km (0.075 R)
• M7: 3,680,257 km (0.077 R)
• M8: 4,043,182 km (0.111 R)
• M9: 5,689,506 km (0.072 R)
• M10: 6,517,530 km (0.115 R)
• M11: 7,907,893 km (0.065 R)
• M12: 11,605,055 km (0.111 R)
• M13: 12,037,542 km (0.047 R)
• M14: 13,447,053 km (0.084 R)
• M15: 14,711,754 km (0.045 R)
• M16: 16,054,095 km (0.117 R)
• M17: 22,049,230 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.8

Radius: 13

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.57 AU - 5.31 AU

Year: 6345 Days

Day: 9.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,723,019 km

• M1: 161,715 km (0.107 R)
• M2: 809,324 km (0.093 R)
• M3: 1,257,520 km (0.099 R)
• M4: 1,833,172 km (0.038 R)
• M5: 2,654,016 km (0.098 R)
• M6: 3,307,310 km (0.081 R)
• M7: 4,395,335 km (0.088 R)
• M8: 5,108,618 km (0.1 R)
• M9: 6,355,815 km (0.079 R)
• M10: 7,159,754 km (0.071 R)
• M11: 7,643,554 km (0.101 R)
• M12: 8,109,401 km (0.101 R)
• M13: 9,012,973 km (0.119 R)
• M14: 11,415,215 km (0.111 R)
• M15: 13,090,262 km (0.099 R)
• M16: 13,929,507 km (0.084 R)
• M17: 16,216,409 km (0.081 R)
• M18: 17,184,607 km (0.108 R)
• M19: 20,028,013 km (0.114 R)
• M20: 23,010,995 km (0.059 R)
• M21: 24,399,562 km (0.03 R)
• M22: 28,621,364 km (0.106 R)
• M23: 32,391,978 km (0.101 R)
• M24: 34,870,216 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 314.8

Radius: 5.2

Gravity: 11.64 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 6.34 AU - 9.5 AU

Year: 15117 Days

Day: 21.6 Hours

Environment

Temp: -242 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 48,723,019 km

• M1: 64,776 km (0.031 R)
• M2: 279,299 km (0.087 R)
• M3: 919,877 km (0.057 R)
• M4: 1,167,462 km (0.075 R)
• M5: 1,910,365 km (0.095 R)
• M6: 3,593,042 km (0.111 R)
• M7: 4,528,328 km (0.069 R)
• M8: 5,859,599 km (0.087 R)
• M9: 6,368,531 km (0.115 R)
• M10: 8,655,733 km (0.064 R)
• M11: 9,509,488 km (0.069 R)
• M12: 9,906,371 km (0.051 R)
• M13: 12,582,527 km (0.091 R)
• M14: 14,053,822 km (0.117 R)
• M15: 16,399,367 km (0.032 R)
• M16: 17,480,062 km (0.048 R)
• M17: 17,925,266 km (0.11 R)
• M18: 22,890,120 km (0.045 R)
• M19: 27,786,458 km (0.069 R)
• M20: 29,946,951 km (0.06 R)
• M21: 45,164,046 km (0.115 R)
• M22: 45,861,471 km (0.053 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 17,419 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit