🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.7

Radius: 12.4

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.05 AU - 1.13 AU

Year: 735 Days

Day: 6.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,855,876 km

• M1: 154,235 km (0.071 R)
• M2: 662,270 km (0.119 R)
• M3: 1,239,867 km (0.099 R)
• M4: 1,686,267 km (0.106 R)
• M5: 2,160,642 km (0.106 R)
• M6: 2,622,002 km (0.045 R)
• M7: 3,277,091 km (0.115 R)
• M8: 4,107,359 km (0.11 R)
• M9: 4,639,928 km (0.056 R)
• M10: 5,201,967 km (0.077 R)
• M11: 5,809,185 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987.4

Radius: 11

Gravity: 8.16 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.99 AU - 2.23 AU

Year: 1979 Days

Day: 11.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 29,855,876 km

• M1: 137,181 km (0.082 R)
• M2: 680,521 km (0.062 R)
• M3: 1,227,750 km (0.104 R)
• M4: 1,766,900 km (0.088 R)
• M5: 2,994,650 km (0.102 R)
• M6: 3,570,452 km (0.102 R)
• M7: 5,799,909 km (0.107 R)
• M8: 6,210,855 km (0.043 R)
• M9: 8,999,210 km (0.071 R)
• M10: 9,836,060 km (0.117 R)
• M11: 10,199,732 km (0.089 R)
• M12: 10,724,073 km (0.087 R)
• M13: 11,226,871 km (0.113 R)
• M14: 12,659,271 km (0.039 R)
• M15: 14,210,003 km (0.091 R)
• M16: 14,817,071 km (0.117 R)
• M17: 17,631,755 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.1

Radius: 9.8

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.81 AU - 2.79 AU

Year: 2252 Days

Day: 15 Hours

Environment

Temp: -199 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,855,876 km

• M1: 128,505 km (0.086 R)
• M2: 1,405,322 km (0.098 R)
• M3: 2,236,339 km (0.105 R)
• M4: 2,921,048 km (0.104 R)
• M5: 3,788,566 km (0.072 R)
• M6: 4,444,403 km (0.117 R)
• M7: 5,153,946 km (0.032 R)
• M8: 6,821,962 km (0.091 R)
• M9: 9,973,690 km (0.057 R)
• M10: 11,290,002 km (0.093 R)
• M11: 11,706,632 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.2

Radius: 10.8

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.99 AU - 2.85 AU

Year: 2431 Days

Day: 10.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,855,876 km

• M1: 134,339 km (0.111 R)
• M2: 1,036,264 km (0.052 R)
• M3: 1,485,806 km (0.068 R)
• M4: 2,087,189 km (0.08 R)
• M5: 2,582,658 km (0.113 R)
• M6: 3,170,876 km (0.103 R)
• M7: 4,595,647 km (0.033 R)
• M8: 4,984,152 km (0.113 R)
• M9: 5,711,647 km (0.082 R)
• M10: 6,920,697 km (0.059 R)
• M11: 7,712,369 km (0.092 R)
• M12: 9,905,473 km (0.049 R)
• M13: 11,346,101 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.8

Radius: 14.9

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.33 AU - 3.03 AU

Year: 2833 Days

Day: 6.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 29,855,876 km

• M1: 185,352 km (0.097 R)
• M2: 790,774 km (0.059 R)
• M3: 1,519,166 km (0.119 R)
• M4: 2,123,093 km (0.059 R)
• M5: 2,635,615 km (0.082 R)
• M6: 3,215,606 km (0.077 R)
• M7: 4,079,384 km (0.113 R)
• M8: 4,656,832 km (0.106 R)
• M9: 5,399,436 km (0.088 R)
• M10: 5,929,760 km (0.09 R)
• M11: 7,877,225 km (0.045 R)
• M12: 9,646,071 km (0.092 R)
• M13: 10,892,071 km (0.102 R)
• M14: 12,243,090 km (0.1 R)
• M15: 12,918,674 km (0.057 R)
• M16: 14,650,867 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.3

Radius: 11.8

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.74 AU - 2.86 AU

Year: 3025 Days

Day: 12.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 29,855,876 km

• M1: 147,055 km (0.065 R)
• M2: 687,253 km (0.083 R)
• M3: 1,147,715 km (0.048 R)
• M4: 1,913,806 km (0.104 R)
• M5: 2,680,644 km (0.083 R)
• M6: 3,100,266 km (0.08 R)
• M7: 3,563,870 km (0.118 R)
• M8: 4,137,877 km (0.096 R)
• M9: 4,516,061 km (0.093 R)
• M10: 4,990,585 km (0.087 R)
• M11: 5,472,141 km (0.101 R)
• M12: 6,707,370 km (0.116 R)
• M13: 7,263,276 km (0.11 R)
• M14: 8,154,580 km (0.101 R)
• M15: 8,752,373 km (0.089 R)
• M16: 9,154,492 km (0.096 R)
• M17: 9,684,218 km (0.079 R)
• M18: 11,745,228 km (0.116 R)
• M19: 14,687,818 km (0.101 R)
• M20: 15,573,737 km (0.098 R)
• M21: 17,856,301 km (0.068 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.3

Radius: 12.2

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 3.01 AU - 3.93 AU

Year: 4174 Days

Day: 10.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 67.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 29,855,876 km

• M1: 153,039 km (0.07 R)
• M2: 632,799 km (0.07 R)
• M3: 1,371,513 km (0.109 R)
• M4: 1,768,845 km (0.069 R)
• M5: 2,630,679 km (0.035 R)
• M6: 3,395,872 km (0.103 R)
• M7: 4,751,528 km (0.039 R)
• M8: 5,368,320 km (0.037 R)
• M9: 6,283,410 km (0.096 R)
• M10: 6,860,858 km (0.058 R)
• M11: 7,508,616 km (0.109 R)
• M12: 8,346,963 km (0.049 R)
• M13: 8,808,472 km (0.053 R)
• M14: 9,206,103 km (0.111 R)
• M15: 10,123,438 km (0.111 R)
• M16: 11,612,385 km (0.11 R)
• M17: 12,286,473 km (0.082 R)
• M18: 13,450,195 km (0.082 R)
• M19: 16,291,059 km (0.119 R)
• M20: 17,507,140 km (0.102 R)
• M21: 18,393,806 km (0.109 R)
• M22: 18,782,761 km (0.091 R)
• M23: 22,388,668 km (0.083 R)
• M24: 27,178,193 km (0.073 R)
• M25: 28,799,236 km (0.1 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 552 - 20,260 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit