🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.53 AU - 0.57 AU

Year: 263 Days

Day: 26.2 Hours

Environment

Temp: -121 °C

Axial Tilt: 44.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.8

Radius: 13.8

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.67 AU - 1.07 AU

Year: 524 Days

Day: 8.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 94,348,765 km

• M1: 171,589 km (0.095 R)
• M2: 690,693 km (0.096 R)
• M3: 1,307,785 km (0.091 R)
• M4: 1,919,490 km (0.088 R)
• M5: 2,400,447 km (0.087 R)
• M6: 3,306,263 km (0.064 R)
• M7: 4,339,385 km (0.065 R)
• M8: 5,793,178 km (0.08 R)
• M9: 6,773,044 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.3

Radius: 8.2

Gravity: 14.43 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.74 AU - 1.08 AU

Year: 561 Days

Day: 11 Hours

Environment

Temp: -147 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 94,348,765 km

• M1: 102,026 km (0.102 R)
• M2: 361,728 km (0.076 R)
• M3: 638,334 km (0.085 R)
• M4: 989,740 km (0.076 R)
• M5: 1,334,263 km (0.093 R)
• M6: 1,757,775 km (0.074 R)
• M7: 2,703,234 km (0.049 R)
• M8: 3,242,683 km (0.065 R)
• M9: 3,545,170 km (0.092 R)
• M10: 3,880,868 km (0.105 R)
• M11: 4,161,663 km (0.094 R)
• M12: 5,121,334 km (0.095 R)
• M13: 6,301,212 km (0.101 R)
• M14: 6,880,156 km (0.101 R)
• M15: 7,315,037 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549

Radius: 11.8

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.15 AU - 1.21 AU

Year: 828 Days

Day: 7.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 94,348,765 km

• M1: 188,344 km (0.069 R)
• M2: 955,482 km (0.084 R)
• M3: 1,376,749 km (0.087 R)
• M4: 1,844,542 km (0.095 R)
• M5: 2,817,377 km (0.085 R)
• M6: 3,486,528 km (0.084 R)
• M7: 4,014,459 km (0.046 R)
• M8: 4,611,803 km (0.105 R)
• M9: 5,177,882 km (0.106 R)
• M10: 6,616,863 km (0.088 R)
• M11: 7,004,172 km (0.036 R)
• M12: 7,730,171 km (0.054 R)
• M13: 8,331,704 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.8

Radius: 13.5

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.28 AU - 1.5 AU

Year: 1058 Days

Day: 11.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 94,348,765 km

• M1: 167,849 km (0.098 R)
• M2: 697,425 km (0.1 R)
• M3: 1,230,442 km (0.101 R)
• M4: 1,862,793 km (0.104 R)
• M5: 2,404,935 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.7

Radius: 11.5

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.61 AU - 5.43 AU

Year: 6205 Days

Day: 7.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 94,348,765 km

• M1: 143,016 km (0.103 R)
• M2: 638,484 km (0.096 R)
• M3: 1,039,406 km (0.092 R)
• M4: 1,562,400 km (0.086 R)
• M5: 1,959,882 km (0.057 R)
• M6: 2,602,853 km (0.103 R)
• M7: 3,168,483 km (0.108 R)
• M8: 4,132,192 km (0.096 R)
• M9: 4,876,741 km (0.115 R)
• M10: 5,341,093 km (0.092 R)
• M11: 6,563,457 km (0.12 R)
• M12: 7,351,688 km (0.082 R)
• M13: 9,960,226 km (0.077 R)
• M14: 11,548,058 km (0.086 R)
• M15: 12,375,933 km (0.116 R)
• M16: 17,991,388 km (0.039 R)
• M17: 19,174,707 km (0.085 R)
• M18: 20,114,032 km (0.103 R)
• M19: 27,477,838 km (0.101 R)
• M20: 28,485,529 km (0.052 R)
• M21: 29,328,214 km (0.082 R)
• M22: 31,260,420 km (0.12 R)
• M23: 31,956,349 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 918.7

Radius: 4.4

Gravity: 47.45 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 11.05 AU - 11.13 AU

Year: 23846 Days

Day: 16.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 94,348,765 km

• M1: 61,186 km (0.077 R)
• M2: 518,057 km (0.053 R)
• M3: 1,157,738 km (0.047 R)
• M4: 1,581,698 km (0.094 R)
• M5: 1,910,664 km (0.117 R)
• M6: 2,307,248 km (0.041 R)
• M7: 2,600,609 km (0.117 R)
• M8: 4,490,928 km (0.053 R)
• M9: 4,908,905 km (0.086 R)
• M10: 6,365,240 km (0.108 R)
• M11: 6,843,055 km (0.092 R)
• M12: 9,782,205 km (0.111 R)
• M13: 12,784,933 km (0.086 R)
• M14: 14,013,581 km (0.119 R)
• M15: 15,068,246 km (0.107 R)
• M16: 15,914,670 km (0.097 R)
• M17: 18,357,604 km (0.105 R)
• M18: 23,408,776 km (0.036 R)
• M19: 24,427,388 km (0.104 R)
• M20: 26,069,972 km (0.03 R)
• M21: 27,411,117 km (0.103 R)
• M22: 29,183,702 km (0.07 R)
• M23: 32,259,135 km (0.099 R)
• M24: 37,343,069 km (0.115 R)
• M25: 38,887,966 km (0.103 R)
• M26: 49,427,735 km (0.112 R)
• M27: 49,611,740 km (0.105 R)
• M28: 55,544,941 km (0.064 R)
• M29: 58,372,790 km (0.035 R)
• M30: 59,822,094 km (0.051 R)
• M31: 61,720,342 km (0.049 R)
• M32: 62,576,789 km (0.101 R)
• M33: 66,305,217 km (0.085 R)
• M34: 67,655,787 km (0.119 R)
• M35: 71,817,001 km (0.107 R)
• M36: 81,411,760 km (0.114 R)
• M37: 84,790,428 km (0.116 R)
• M38: 88,803,540 km (0.072 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 268 - 17,599 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit