🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.54 AU - 0.64 AU

Year: 293 Days

Day: 38.3 Hours

Environment

Temp: -127 °C

Axial Tilt: 4.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,045,581 km

• M1: 33,211 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.9

Radius: 11

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.81 AU - 1.21 AU

Year: 655 Days

Day: 6.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,045,581 km

• M1: 137,630 km (0.061 R)
• M2: 747,541 km (0.072 R)
• M3: 1,222,813 km (0.106 R)
• M4: 1,569,581 km (0.087 R)
• M5: 1,913,806 km (0.084 R)
• M6: 2,480,183 km (0.061 R)
• M7: 3,095,030 km (0.059 R)
• M8: 3,879,073 km (0.038 R)
• M9: 4,725,797 km (0.051 R)
• M10: 5,280,057 km (0.092 R)
• M11: 6,163,133 km (0.087 R)
• M12: 7,249,513 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.9

Radius: 13

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.7 AU - 1.8 AU

Year: 1495 Days

Day: 14.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,045,581 km

• M1: 162,014 km (0.084 R)
• M2: 647,310 km (0.067 R)
• M3: 1,326,335 km (0.11 R)
• M4: 2,232,599 km (0.037 R)
• M5: 2,713,705 km (0.115 R)
• M6: 3,733,364 km (0.065 R)
• M7: 5,014,820 km (0.106 R)
• M8: 6,012,189 km (0.029 R)
• M9: 7,433,219 km (0.111 R)
• M10: 7,934,521 km (0.12 R)
• M11: 8,458,413 km (0.094 R)
• M12: 13,560,449 km (0.089 R)
• M13: 14,099,599 km (0.032 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.4

Radius: 10.7

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 3.76 AU - 3.76 AU

Year: 4708 Days

Day: 11.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,045,581 km

• M1: 146,008 km (0.093 R)
• M2: 556,504 km (0.065 R)
• M3: 897,288 km (0.073 R)
• M4: 1,455,587 km (0.11 R)
• M5: 2,097,661 km (0.116 R)
• M6: 2,530,598 km (0.053 R)
• M7: 2,988,217 km (0.063 R)
• M8: 3,481,442 km (0.083 R)
• M9: 4,424,207 km (0.067 R)
• M10: 5,268,987 km (0.079 R)
• M11: 6,075,618 km (0.118 R)
• M12: 8,993,076 km (0.076 R)
• M13: 9,480,316 km (0.068 R)
• M14: 9,985,209 km (0.09 R)
• M15: 11,304,513 km (0.066 R)
• M16: 12,459,259 km (0.104 R)
• M17: 13,593,510 km (0.104 R)
• M18: 13,936,837 km (0.055 R)
• M19: 17,990,042 km (0.104 R)
• M20: 19,068,343 km (0.114 R)
• M21: 22,086,779 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432

Radius: 9.4

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 3.66 AU - 5 AU

Year: 5818 Days

Day: 10.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,045,581 km

• M1: 146,307 km (0.076 R)
• M2: 578,944 km (0.104 R)
• M3: 926,310 km (0.095 R)
• M4: 1,538,614 km (0.094 R)
• M5: 2,497,686 km (0.097 R)
• M6: 3,041,175 km (0.12 R)
• M7: 4,510,077 km (0.04 R)
• M8: 7,318,627 km (0.107 R)
• M9: 10,156,199 km (0.12 R)
• M10: 11,078,919 km (0.115 R)
• M11: 13,243,152 km (0.102 R)
• M12: 14,289,888 km (0.1 R)
• M13: 16,429,437 km (0.107 R)
• M14: 17,513,872 km (0.059 R)
• M15: 19,033,187 km (0.082 R)
• M16: 27,132,865 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234

Radius: 13.3

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 5.33 AU - 5.57 AU

Year: 8215 Days

Day: 6.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,045,581 km

• M1: 165,455 km (0.067 R)
• M2: 655,687 km (0.088 R)
• M3: 1,334,413 km (0.111 R)
• M4: 1,794,576 km (0.028 R)
• M5: 2,793,291 km (0.084 R)
• M6: 3,297,586 km (0.055 R)
• M7: 6,605,195 km (0.097 R)
• M8: 8,415,778 km (0.051 R)
• M9: 9,849,973 km (0.072 R)
• M10: 14,520,119 km (0.109 R)
• M11: 15,128,982 km (0.08 R)
• M12: 24,054,440 km (0.076 R)
• M13: 26,265,497 km (0.081 R)
• M14: 29,216,015 km (0.058 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 935.7

Radius: 5.2

Gravity: 34.6 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 6.72 AU - 9.88 AU

Year: 15439 Days

Day: 23.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,045,581 km

• M1: 71,209 km (0.063 R)
• M2: 1,214,136 km (0.117 R)
• M3: 1,777,971 km (0.095 R)
• M4: 3,376,424 km (0.119 R)
• M5: 3,660,062 km (0.076 R)
• M6: 4,083,872 km (0.103 R)
• M7: 5,028,732 km (0.116 R)
• M8: 5,552,175 km (0.113 R)
• M9: 5,747,550 km (0.071 R)
• M10: 6,069,934 km (0.118 R)
• M11: 6,973,654 km (0.053 R)
• M12: 7,914,625 km (0.119 R)
• M13: 8,937,276 km (0.106 R)
• M14: 10,512,841 km (0.038 R)
• M15: 12,596,889 km (0.042 R)
• M16: 13,348,618 km (0.04 R)
• M17: 19,289,149 km (0.12 R)
• M18: 22,680,084 km (0.112 R)
• M19: 33,748,831 km (0.12 R)
• M20: 39,776,727 km (0.111 R)
• M21: 40,944,788 km (0.092 R)
• M22: 56,607,984 km (0.058 R)
• M23: 68,105,927 km (0.118 R)
• M24: 69,986,222 km (0.119 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: 492 - 15,015 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit