🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.5

Radius: 8.6

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.61 AU - 0.81 AU

Year: 392 Days

Day: 7.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,470,914 km

• M1: 106,962 km (0.099 R)
• M2: 452,683 km (0.057 R)
• M3: 778,507 km (0.093 R)
• M4: 1,066,483 km (0.111 R)
• M5: 1,398,740 km (0.105 R)
• M6: 1,861,147 km (0.097 R)
• M7: 2,174,854 km (0.076 R)
• M8: 2,456,098 km (0.095 R)
• M9: 2,957,251 km (0.039 R)
• M10: 3,666,943 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 359.6

Radius: 12.3

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.76 AU - 0.82 AU

Year: 461 Days

Day: 8.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,470,914 km

• M1: 153,039 km (0.049 R)
• M2: 571,613 km (0.105 R)
• M3: 954,135 km (0.085 R)
• M4: 1,357,152 km (0.075 R)
• M5: 1,762,712 km (0.094 R)
• M6: 2,152,265 km (0.037 R)
• M7: 2,837,423 km (0.116 R)
• M8: 3,302,373 km (0.064 R)
• M9: 3,687,139 km (0.079 R)
• M10: 4,101,974 km (0.11 R)
• M11: 4,494,070 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.8

Radius: 9.7

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.15 AU - 1.47 AU

Year: 984 Days

Day: 11.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 20,470,914 km

• M1: 124,615 km (0.102 R)
• M2: 466,446 km (0.069 R)
• M3: 789,428 km (0.061 R)
• M4: 1,187,807 km (0.114 R)
• M5: 1,550,582 km (0.119 R)
• M6: 2,207,317 km (0.102 R)
• M7: 3,924,251 km (0.054 R)
• M8: 4,661,918 km (0.097 R)
• M9: 5,226,202 km (0.081 R)
• M10: 5,779,863 km (0.027 R)
• M11: 6,471,305 km (0.049 R)
• M12: 6,858,015 km (0.076 R)
• M13: 7,346,602 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.8

Radius: 9.6

Gravity: 10.2 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.72 AU - 2.68 AU

Year: 2141 Days

Day: 7.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 20,470,914 km

• M1: 124,316 km (0.102 R)
• M2: 517,609 km (0.12 R)
• M3: 818,749 km (0.054 R)
• M4: 1,269,039 km (0.117 R)
• M5: 2,123,691 km (0.11 R)
• M6: 3,950,281 km (0.113 R)
• M7: 6,233,743 km (0.053 R)
• M8: 7,825,465 km (0.037 R)
• M9: 8,141,715 km (0.099 R)
• M10: 9,351,662 km (0.068 R)
• M11: 9,708,004 km (0.059 R)
• M12: 10,110,572 km (0.059 R)
• M13: 11,106,445 km (0.059 R)
• M14: 12,335,242 km (0.098 R)
• M15: 14,298,116 km (0.11 R)
• M16: 15,501,930 km (0.079 R)
• M17: 16,103,014 km (0.091 R)
• M18: 17,891,157 km (0.11 R)
• M19: 18,889,574 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.2

Radius: 15

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.96 AU - 2.7 AU

Year: 2333 Days

Day: 11.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 20,470,914 km

• M1: 186,549 km (0.049 R)
• M2: 1,225,655 km (0.069 R)
• M3: 2,250,102 km (0.094 R)
• M4: 2,772,647 km (0.092 R)
• M5: 3,773,756 km (0.076 R)
• M6: 4,853,404 km (0.078 R)
• M7: 6,055,423 km (0.063 R)
• M8: 6,998,488 km (0.114 R)
• M9: 7,827,559 km (0.084 R)
• M10: 11,047,354 km (0.088 R)
• M11: 14,605,839 km (0.095 R)
• M12: 16,106,156 km (0.043 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.9

Radius: 8.8

Gravity: 8.99 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.35 AU - 2.39 AU

Year: 2393 Days

Day: 9.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 20,470,914 km

• M1: 109,655 km (0.089 R)
• M2: 419,173 km (0.048 R)
• M3: 766,988 km (0.114 R)
• M4: 1,060,051 km (0.101 R)
• M5: 1,954,197 km (0.09 R)
• M6: 2,268,652 km (0.12 R)
• M7: 2,827,549 km (0.092 R)
• M8: 3,387,195 km (0.1 R)
• M9: 3,787,519 km (0.112 R)
• M10: 5,018,560 km (0.087 R)
• M11: 6,443,330 km (0.069 R)
• M12: 7,837,582 km (0.114 R)
• M13: 8,605,618 km (0.103 R)
• M14: 10,328,387 km (0.088 R)
• M15: 10,706,271 km (0.114 R)
• M16: 11,290,600 km (0.081 R)
• M17: 14,209,255 km (0.094 R)
• M18: 17,119,831 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.2

Radius: 9.6

Gravity: 8.95 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.09 AU - 3.27 AU

Year: 3720 Days

Day: 9.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 20,470,914 km

• M1: 119,379 km (0.103 R)
• M2: 438,920 km (0.104 R)
• M3: 759,808 km (0.102 R)
• M4: 1,274,574 km (0.12 R)
• M5: 2,221,977 km (0.087 R)
• M6: 3,285,319 km (0.085 R)
• M7: 5,164,268 km (0.042 R)
• M8: 5,651,209 km (0.097 R)
• M9: 6,438,992 km (0.062 R)
• M10: 6,843,654 km (0.078 R)
• M11: 7,166,336 km (0.08 R)
• M12: 7,465,383 km (0.119 R)
• M13: 7,807,513 km (0.109 R)
• M14: 10,377,604 km (0.066 R)
• M15: 10,934,707 km (0.034 R)
• M16: 11,738,795 km (0.087 R)
• M17: 12,871,700 km (0.094 R)
• M18: 13,972,740 km (0.1 R)
• M19: 14,865,690 km (0.114 R)
• M20: 20,435,817 km (0.049 R)
• M21: 22,281,705 km (0.108 R)
• M22: 25,678,175 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341.9

Radius: 13.9

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.67 AU - 3.95 AU

Year: 3950 Days

Day: 6.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 20,470,914 km

• M1: 172,935 km (0.076 R)
• M2: 1,541,307 km (0.045 R)
• M3: 2,200,585 km (0.103 R)
• M4: 2,977,746 km (0.072 R)
• M5: 3,624,158 km (0.083 R)
• M6: 4,320,536 km (0.11 R)
• M7: 4,917,432 km (0.07 R)
• M8: 5,747,251 km (0.095 R)
• M9: 7,686,039 km (0.09 R)
• M10: 8,701,959 km (0.085 R)
• M11: 9,842,493 km (0.103 R)
• M12: 11,323,661 km (0.084 R)
• M13: 11,905,298 km (0.082 R)
• M14: 16,605,364 km (0.072 R)
• M15: 17,194,031 km (0.065 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 490 - 18,373 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit