🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.43 AU - 0.63 AU

Year: 253 Days

Day: 15.3 Hours

Environment

Temp: -115 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.7

Radius: 14.4

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.72 AU - 0.84 AU

Year: 452 Days

Day: 7.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,200,494 km

• M1: 180,415 km (0.095 R)
• M2: 673,789 km (0.069 R)
• M3: 1,289,234 km (0.031 R)
• M4: 2,600,909 km (0.109 R)
• M5: 3,206,481 km (0.072 R)
• M6: 3,799,786 km (0.069 R)
• M7: 4,392,941 km (0.05 R)
• M8: 5,714,339 km (0.109 R)
• M9: 6,534,136 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.6

Radius: 15

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.79 AU - 0.91 AU

Year: 514 Days

Day: 6 Hours

Environment

Temp: -158 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 27,200,494 km

• M1: 186,549 km (0.077 R)
• M2: 719,117 km (0.084 R)
• M3: 2,122,794 km (0.108 R)
• M4: 2,639,355 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.1

Radius: 9.2

Gravity: 10.87 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.92 AU - 1.24 AU

Year: 736 Days

Day: 6.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,200,494 km

• M1: 114,442 km (0.079 R)
• M2: 590,612 km (0.113 R)
• M3: 984,504 km (0.031 R)
• M4: 1,442,273 km (0.113 R)
• M5: 1,787,096 km (0.083 R)
• M6: 2,126,384 km (0.057 R)
• M7: 2,812,889 km (0.098 R)
• M8: 3,743,088 km (0.119 R)
• M9: 4,485,842 km (0.084 R)
• M10: 4,901,275 km (0.082 R)
• M11: 5,248,342 km (0.114 R)
• M12: 5,769,691 km (0.116 R)
• M13: 6,282,811 km (0.118 R)
• M14: 7,167,084 km (0.085 R)
• M15: 8,283,832 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.9

Radius: 13

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.23 AU - 1.73 AU

Year: 1181 Days

Day: 10.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,200,494 km

• M1: 161,715 km (0.12 R)
• M2: 702,512 km (0.111 R)
• M3: 1,155,644 km (0.107 R)
• M4: 1,738,626 km (0.086 R)
• M5: 2,642,048 km (0.092 R)
• M6: 3,146,941 km (0.037 R)
• M7: 3,567,460 km (0.09 R)
• M8: 4,170,789 km (0.086 R)
• M9: 4,896,039 km (0.075 R)
• M10: 5,663,476 km (0.103 R)
• M11: 6,076,366 km (0.039 R)
• M12: 8,062,428 km (0.063 R)
• M13: 8,533,212 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492.6

Radius: 8.7

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.73 AU - 2.65 AU

Year: 2126 Days

Day: 13.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 27,200,494 km

• M1: 108,159 km (0.089 R)
• M2: 430,991 km (0.031 R)
• M3: 968,197 km (0.097 R)
• M4: 1,685,220 km (0.047 R)
• M5: 1,972,897 km (0.044 R)
• M6: 2,499,930 km (0.071 R)
• M7: 2,891,577 km (0.03 R)
• M8: 3,243,581 km (0.109 R)
• M9: 3,606,954 km (0.027 R)
• M10: 4,165,104 km (0.07 R)
• M11: 4,635,739 km (0.097 R)
• M12: 5,476,030 km (0.07 R)
• M13: 6,388,876 km (0.071 R)
• M14: 7,568,605 km (0.096 R)
• M15: 8,002,289 km (0.092 R)
• M16: 8,330,806 km (0.063 R)
• M17: 9,535,368 km (0.034 R)
• M18: 9,938,834 km (0.105 R)
• M19: 10,494,590 km (0.054 R)
• M20: 11,329,496 km (0.102 R)
• M21: 12,051,904 km (0.106 R)
• M22: 14,013,880 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.7

Radius: 9.2

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 4.76 AU - 4.76 AU

Year: 6813 Days

Day: 5.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 27,200,494 km

• M1: 122,969 km (0.103 R)
• M2: 414,835 km (0.109 R)
• M3: 905,815 km (0.101 R)
• M4: 1,378,096 km (0.066 R)
• M5: 1,758,523 km (0.12 R)
• M6: 2,164,532 km (0.109 R)
• M7: 2,682,739 km (0.091 R)
• M8: 4,308,867 km (0.054 R)
• M9: 4,744,945 km (0.062 R)
• M10: 5,130,609 km (0.096 R)
• M11: 6,053,179 km (0.104 R)
• M12: 6,727,267 km (0.115 R)
• M13: 8,188,239 km (0.111 R)
• M14: 8,668,748 km (0.101 R)
• M15: 9,849,823 km (0.102 R)
• M16: 10,140,192 km (0.112 R)
• M17: 11,314,386 km (0.084 R)
• M18: 13,775,570 km (0.032 R)
• M19: 15,048,798 km (0.076 R)
• M20: 15,434,611 km (0.075 R)
• M21: 18,447,213 km (0.104 R)
• M22: 19,663,294 km (0.07 R)
• M23: 20,525,725 km (0.074 R)
• M24: 21,971,589 km (0.082 R)
• M25: 22,827,737 km (0.11 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: 382 - 16,350 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit