🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.7

Radius: 10.1

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.42 AU - 0.6 AU

Year: 247 Days

Day: 12.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,041,729 km

• M1: 125,812 km (0.107 R)
• M2: 443,258 km (0.03 R)
• M3: 1,005,896 km (0.119 R)
• M4: 1,375,552 km (0.118 R)
• M5: 2,096,614 km (0.103 R)
• M6: 2,595,523 km (0.068 R)
• M7: 2,925,985 km (0.076 R)
• M8: 3,496,701 km (0.096 R)
• M9: 3,890,143 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.4

Radius: 14.1

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.5 AU - 0.52 AU

Year: 247 Days

Day: 10.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 63,041,729 km

• M1: 175,777 km (0.088 R)
• M2: 767,886 km (0.073 R)
• M3: 1,547,590 km (0.101 R)
• M4: 2,019,272 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.2

Radius: 14.8

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.59 AU - 0.75 AU

Year: 372 Days

Day: 14.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,041,729 km

• M1: 184,155 km (0.081 R)
• M2: 669,301 km (0.066 R)
• M3: 1,141,881 km (0.115 R)
• M4: 1,829,133 km (0.099 R)
• M5: 2,804,362 km (0.083 R)
• M6: 3,467,230 km (0.098 R)
• M7: 3,990,972 km (0.041 R)
• M8: 4,650,549 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.6

Radius: 8.5

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.62 AU - 0.98 AU

Year: 485 Days

Day: 8.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,041,729 km

• M1: 105,766 km (0.117 R)
• M2: 602,879 km (0.031 R)
• M3: 908,059 km (0.105 R)
• M4: 1,394,701 km (0.101 R)
• M5: 1,868,477 km (0.09 R)
• M6: 2,513,394 km (0.058 R)
• M7: 4,012,514 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.6

Radius: 10.1

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.69 AU - 1.11 AU

Year: 579 Days

Day: 9.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,041,729 km

• M1: 125,662 km (0.112 R)
• M2: 518,656 km (0.059 R)
• M3: 1,031,777 km (0.114 R)
• M4: 1,490,444 km (0.069 R)
• M5: 1,882,988 km (0.11 R)
• M6: 2,463,727 km (0.115 R)
• M7: 2,948,574 km (0.103 R)
• M8: 3,666,793 km (0.085 R)
• M9: 4,139,672 km (0.097 R)
• M10: 4,543,736 km (0.102 R)
• M11: 4,941,367 km (0.093 R)
• M12: 6,122,891 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.5

Radius: 11.9

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.87 AU - 1.01 AU

Year: 618 Days

Day: 9.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,041,729 km

• M1: 147,952 km (0.088 R)
• M2: 578,196 km (0.088 R)
• M3: 1,055,712 km (0.089 R)
• M4: 1,432,400 km (0.081 R)
• M5: 1,927,569 km (0.104 R)
• M6: 2,514,441 km (0.115 R)
• M7: 2,909,978 km (0.057 R)
• M8: 3,295,192 km (0.029 R)
• M9: 4,154,482 km (0.09 R)
• M10: 4,879,883 km (0.082 R)
• M11: 5,390,759 km (0.048 R)
• M12: 6,520,522 km (0.081 R)
• M13: 7,825,315 km (0.109 R)
• M14: 8,280,541 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.2

Radius: 10.5

Gravity: 6.96 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2 AU - 2.74 AU

Year: 2475 Days

Day: 11.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,041,729 km

• M1: 130,749 km (0.107 R)
• M2: 473,178 km (0.099 R)
• M3: 883,226 km (0.094 R)
• M4: 1,225,506 km (0.111 R)
• M5: 1,848,132 km (0.094 R)
• M6: 2,206,269 km (0.096 R)
• M7: 3,251,061 km (0.109 R)
• M8: 3,645,850 km (0.117 R)
• M9: 4,072,652 km (0.051 R)
• M10: 4,980,861 km (0.107 R)
• M11: 5,940,232 km (0.098 R)
• M12: 6,285,953 km (0.093 R)
• M13: 7,465,981 km (0.076 R)
• M14: 8,028,469 km (0.112 R)
• M15: 8,720,060 km (0.104 R)
• M16: 9,379,637 km (0.081 R)
• M17: 12,142,261 km (0.053 R)
• M18: 13,778,113 km (0.119 R)
• M19: 14,866,288 km (0.093 R)
• M20: 16,010,712 km (0.033 R)
• M21: 16,946,746 km (0.1 R)
• M22: 18,643,485 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 812.7

Radius: 4.1

Gravity: 48.35 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 6.54 AU - 8.4 AU

Year: 13848 Days

Day: 17.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 63,041,729 km

• M1: 51,910 km (0.117 R)
• M2: 216,468 km (0.108 R)
• M3: 344,374 km (0.067 R)
• M4: 601,683 km (0.064 R)
• M5: 1,964,070 km (0.098 R)
• M6: 2,154,060 km (0.098 R)
• M7: 2,294,233 km (0.051 R)
• M8: 2,461,783 km (0.12 R)
• M9: 2,798,228 km (0.106 R)
• M10: 4,684,657 km (0.085 R)
• M11: 5,164,717 km (0.067 R)
• M12: 6,303,007 km (0.105 R)
• M13: 6,930,570 km (0.099 R)
• M14: 8,211,726 km (0.098 R)
• M15: 13,521,404 km (0.082 R)
• M16: 13,999,967 km (0.073 R)
• M17: 18,659,043 km (0.051 R)
• M18: 19,596,274 km (0.092 R)
• M19: 21,564,383 km (0.075 R)
• M20: 27,811,740 km (0.112 R)
• M21: 40,678,354 km (0.093 R)
• M22: 42,249,879 km (0.081 R)
• M23: 52,872,675 km (0.111 R)
• M24: 57,540,876 km (0.044 R)
• M25: 57,897,218 km (0.097 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 176 - 13,554 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit