🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.62 AU - 0.66 AU

Year: 336 Days

Day: 22.2 Hours

Environment

Temp: -134 °C

Axial Tilt: 15.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,764,286 km

• M1: 402,568 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.8

Radius: 10.3

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.72 AU - 0.98 AU

Year: 514 Days

Day: 9.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,764,286 km

• M1: 131,646 km (0.055 R)
• M2: 681,418 km (0.103 R)
• M3: 1,075,160 km (0.107 R)
• M4: 2,234,992 km (0.071 R)
• M5: 3,058,977 km (0.091 R)
• M6: 4,485,393 km (0.106 R)
• M7: 5,102,185 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.1

Radius: 9.7

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.58 AU - 1.82 AU

Year: 1454 Days

Day: 6.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,764,286 km

• M1: 120,725 km (0.035 R)
• M2: 692,489 km (0.115 R)
• M3: 994,826 km (0.117 R)
• M4: 1,609,523 km (0.095 R)
• M5: 2,029,594 km (0.053 R)
• M6: 2,424,533 km (0.064 R)
• M7: 3,602,317 km (0.087 R)
• M8: 3,961,800 km (0.097 R)
• M9: 4,545,830 km (0.078 R)
• M10: 5,166,063 km (0.117 R)
• M11: 5,496,824 km (0.118 R)
• M12: 5,885,779 km (0.117 R)
• M13: 6,646,933 km (0.073 R)
• M14: 7,815,591 km (0.084 R)
• M15: 8,141,715 km (0.101 R)
• M16: 9,056,505 km (0.032 R)
• M17: 11,123,499 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.4

Radius: 12.8

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.31 AU - 2.15 AU

Year: 1493 Days

Day: 5.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,764,286 km

• M1: 159,172 km (0.081 R)
• M2: 566,677 km (0.117 R)
• M3: 1,048,681 km (0.093 R)
• M4: 1,455,138 km (0.047 R)
• M5: 1,869,375 km (0.067 R)
• M6: 2,294,233 km (0.095 R)
• M7: 3,139,910 km (0.06 R)
• M8: 3,731,569 km (0.099 R)
• M9: 4,201,307 km (0.082 R)
• M10: 5,363,532 km (0.082 R)
• M11: 6,633,469 km (0.088 R)
• M12: 7,224,680 km (0.084 R)
• M13: 8,598,287 km (0.088 R)
• M14: 9,362,433 km (0.104 R)
• M15: 10,758,181 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.4

Radius: 14.4

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.73 AU - 2.15 AU

Year: 1773 Days

Day: 13.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,764,286 km

• M1: 188,493 km (0.054 R)
• M2: 654,640 km (0.057 R)
• M3: 1,111,363 km (0.033 R)
• M4: 1,614,311 km (0.04 R)
• M5: 2,397,605 km (0.087 R)
• M6: 6,699,741 km (0.072 R)
• M7: 8,787,977 km (0.063 R)
• M8: 12,608,258 km (0.085 R)
• M9: 14,433,651 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.9

Radius: 9.4

Gravity: 10.64 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.16 AU - 3.14 AU

Year: 2830 Days

Day: 13.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 58,764,286 km

• M1: 121,174 km (0.074 R)
• M2: 473,776 km (0.118 R)
• M3: 952,789 km (0.075 R)
• M4: 1,461,422 km (0.111 R)
• M5: 2,458,342 km (0.075 R)
• M6: 3,498,346 km (0.091 R)
• M7: 3,875,931 km (0.092 R)
• M8: 5,613,660 km (0.036 R)
• M9: 6,048,840 km (0.109 R)
• M10: 6,389,923 km (0.089 R)
• M11: 7,048,603 km (0.094 R)
• M12: 9,676,439 km (0.119 R)
• M13: 10,708,365 km (0.104 R)
• M14: 11,464,582 km (0.099 R)
• M15: 12,849,859 km (0.064 R)
• M16: 13,655,443 km (0.073 R)
• M17: 14,849,234 km (0.095 R)
• M18: 15,896,270 km (0.083 R)
• M19: 16,274,004 km (0.065 R)
• M20: 17,216,621 km (0.119 R)
• M21: 17,787,935 km (0.109 R)
• M22: 18,728,008 km (0.064 R)
• M23: 19,271,198 km (0.09 R)
• M24: 20,199,901 km (0.117 R)
• M25: 21,093,300 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.1

Radius: 12.3

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.45 AU - 3.77 AU

Year: 3598 Days

Day: 8.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 58,764,286 km

• M1: 153,039 km (0.115 R)
• M2: 626,965 km (0.107 R)
• M3: 1,089,372 km (0.053 R)
• M4: 1,844,542 km (0.08 R)
• M5: 2,407,479 km (0.083 R)
• M6: 2,976,848 km (0.12 R)
• M7: 3,695,516 km (0.119 R)
• M8: 4,645,014 km (0.1 R)
• M9: 6,380,648 km (0.081 R)
• M10: 7,812,749 km (0.12 R)
• M11: 8,954,629 km (0.118 R)
• M12: 9,487,796 km (0.114 R)
• M13: 10,123,288 km (0.095 R)
• M14: 10,914,361 km (0.053 R)
• M15: 11,926,690 km (0.067 R)
• M16: 13,536,663 km (0.093 R)
• M17: 14,497,081 km (0.102 R)
• M18: 17,770,133 km (0.048 R)
• M19: 18,736,385 km (0.095 R)
• M20: 20,315,840 km (0.033 R)
• M21: 21,372,150 km (0.073 R)
• M22: 23,237,336 km (0.117 R)
• M23: 24,465,984 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 395.7

Radius: 7

Gravity: 8.08 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 8.67 AU - 9.43 AU

Year: 17860 Days

Day: 20.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,764,286 km

• M1: 91,105 km (0.119 R)
• M2: 417,976 km (0.087 R)
• M3: 908,358 km (0.078 R)
• M4: 1,488,798 km (0.114 R)
• M5: 1,921,136 km (0.051 R)
• M6: 2,195,798 km (0.105 R)
• M7: 2,624,395 km (0.059 R)
• M8: 3,181,348 km (0.1 R)
• M9: 4,131,145 km (0.081 R)
• M10: 4,591,458 km (0.103 R)
• M11: 6,864,298 km (0.103 R)
• M12: 8,008,872 km (0.094 R)
• M13: 12,824,876 km (0.112 R)
• M14: 19,029,747 km (0.085 R)
• M15: 19,446,975 km (0.066 R)
• M16: 22,540,360 km (0.104 R)
• M17: 30,582,742 km (0.09 R)
• M18: 34,247,889 km (0.059 R)
• M19: 54,640,173 km (0.087 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: 333 - 20,038 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit