🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.39 AU - 0.63 AU

Year: 239 Days

Day: 29.7 Hours

Environment

Temp: -114 °C

Axial Tilt: 17.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 22,557,908 km

• M1: 122,670 km (0.116 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.54 AU - 0.8 AU

Year: 360 Days

Day: 34.3 Hours

Environment

Temp: -141 °C

Axial Tilt: 49.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.9

Radius: 11.9

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.72 AU - 0.88 AU

Year: 469 Days

Day: 12.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 22,557,908 km

• M1: 147,952 km (0.058 R)
• M2: 604,525 km (0.099 R)
• M3: 1,143,377 km (0.097 R)
• M4: 1,806,843 km (0.101 R)
• M5: 2,188,318 km (0.118 R)
• M6: 2,614,372 km (0.064 R)
• M7: 3,106,998 km (0.092 R)
• M8: 3,537,990 km (0.103 R)
• M9: 4,211,479 km (0.076 R)
• M10: 5,219,619 km (0.052 R)
• M11: 5,611,566 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.3

Radius: 12.6

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.64 AU - 0.96 AU

Year: 469 Days

Day: 10.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 22,557,908 km

• M1: 156,779 km (0.071 R)
• M2: 567,724 km (0.07 R)
• M3: 1,085,632 km (0.11 R)
• M4: 2,450,862 km (0.061 R)
• M5: 3,410,383 km (0.113 R)
• M6: 4,480,456 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.4

Radius: 9.9

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.32 AU - 2.04 AU

Year: 1428 Days

Day: 5.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 22,557,908 km

• M1: 123,119 km (0.101 R)
• M2: 541,395 km (0.11 R)
• M3: 872,006 km (0.11 R)
• M4: 1,319,752 km (0.063 R)
• M5: 2,480,931 km (0.074 R)
• M6: 2,866,894 km (0.114 R)
• M7: 3,264,226 km (0.058 R)
• M8: 4,982,207 km (0.076 R)
• M9: 5,538,562 km (0.079 R)
• M10: 6,314,227 km (0.063 R)
• M11: 6,799,074 km (0.05 R)
• M12: 7,185,036 km (0.119 R)
• M13: 7,948,434 km (0.053 R)
• M14: 8,295,501 km (0.114 R)
• M15: 8,652,741 km (0.116 R)
• M16: 8,963,156 km (0.082 R)
• M17: 10,821,312 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.6

Radius: 13.2

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.47 AU - 2.33 AU

Year: 1718 Days

Day: 9.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 22,557,908 km

• M1: 164,109 km (0.073 R)
• M2: 826,528 km (0.111 R)
• M3: 1,462,020 km (0.075 R)
• M4: 2,127,880 km (0.071 R)
• M5: 2,948,125 km (0.026 R)
• M6: 3,409,635 km (0.105 R)
• M7: 4,370,951 km (0.068 R)
• M8: 5,379,988 km (0.118 R)
• M9: 6,562,260 km (0.113 R)
• M10: 7,177,107 km (0.109 R)
• M11: 7,857,030 km (0.101 R)
• M12: 8,810,567 km (0.103 R)
• M13: 9,529,085 km (0.099 R)
• M14: 10,221,723 km (0.117 R)
• M15: 11,151,624 km (0.082 R)
• M16: 11,849,647 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640

Radius: 14.5

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.07 AU - 2.65 AU

Year: 2378 Days

Day: 11.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 22,557,908 km

• M1: 180,415 km (0.116 R)
• M2: 656,286 km (0.106 R)
• M3: 1,345,782 km (0.085 R)
• M4: 1,993,990 km (0.103 R)
• M5: 3,426,390 km (0.104 R)
• M6: 4,848,467 km (0.078 R)
• M7: 6,004,859 km (0.053 R)
• M8: 6,526,955 km (0.081 R)
• M9: 6,994,598 km (0.115 R)
• M10: 8,663,512 km (0.079 R)
• M11: 10,584,947 km (0.07 R)
• M12: 11,349,691 km (0.051 R)
• M13: 12,028,417 km (0.09 R)
• M14: 13,075,751 km (0.092 R)
• M15: 14,046,941 km (0.109 R)
• M16: 14,782,962 km (0.058 R)
• M17: 16,232,566 km (0.069 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.6

Radius: 10.5

Gravity: 7.08 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.25 AU - 3.29 AU

Year: 3024 Days

Day: 10.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,557,908 km

• M1: 130,599 km (0.089 R)
• M2: 694,733 km (0.108 R)
• M3: 1,733,540 km (0.1 R)
• M4: 2,271,195 km (0.11 R)
• M5: 2,753,050 km (0.086 R)
• M6: 4,926,557 km (0.119 R)
• M7: 7,562,472 km (0.104 R)
• M8: 8,927,103 km (0.119 R)
• M9: 10,489,503 km (0.094 R)
• M10: 12,093,641 km (0.117 R)
• M11: 15,466,325 km (0.105 R)
• M12: 15,887,892 km (0.087 R)
• M13: 18,170,157 km (0.08 R)
• M14: 21,045,728 km (0.086 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 233 - 18,982 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit