🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.5 AU - 0.68 AU

Year: 209 Days

Day: 31.3 Hours

Environment

Temp: -18 °C

Axial Tilt: 18 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 35,480,892 km

• M1: 52,958 km (0.09 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.56

Radius: 1.19

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.49 AU - 0.69 AU

Year: 209 Days

Day: 16.8 Hours

Environment

Temp: 5 °C

Axial Tilt: 0.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.96

Radius: 0.98

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.53 AU - 0.81 AU

Year: 252 Days

Day: 25.4 Hours

Environment

Temp: -32 °C

Axial Tilt: 26.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.7 AU - 1.06 AU

Year: 380 Days

Day: 33.7 Hours

Environment

Temp: -67 °C

Axial Tilt: 21.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.1

Radius: 13.7

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.09 AU - 2.67 AU

Year: 1690 Days

Day: 8.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,480,892 km

• M1: 170,392 km (0.095 R)
• M2: 771,925 km (0.101 R)
• M3: 1,228,797 km (0.105 R)
• M4: 1,674,898 km (0.106 R)
• M5: 2,568,595 km (0.09 R)
• M6: 3,415,469 km (0.116 R)
• M7: 3,904,953 km (0.078 R)
• M8: 4,897,086 km (0.109 R)
• M9: 6,639,453 km (0.102 R)
• M10: 7,209,869 km (0.107 R)
• M11: 7,783,577 km (0.12 R)
• M12: 8,325,720 km (0.106 R)
• M13: 8,764,790 km (0.09 R)
• M14: 9,965,462 km (0.079 R)
• M15: 11,084,903 km (0.102 R)
• M16: 11,655,918 km (0.025 R)
• M17: 14,271,637 km (0.036 R)
• M18: 14,947,969 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.9

Radius: 8.2

Gravity: 10.08 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.12 AU - 4.42 AU

Year: 3368 Days

Day: 14.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 35,480,892 km

• M1: 102,325 km (0.094 R)
• M2: 385,813 km (0.089 R)
• M3: 1,072,318 km (0.053 R)
• M4: 1,467,705 km (0.101 R)
• M5: 1,747,453 km (0.074 R)
• M6: 3,870,097 km (0.093 R)
• M7: 4,210,432 km (0.045 R)
• M8: 5,457,330 km (0.11 R)
• M9: 5,749,794 km (0.105 R)
• M10: 6,052,879 km (0.094 R)
• M11: 6,751,053 km (0.112 R)
• M12: 7,830,850 km (0.116 R)
• M13: 8,623,868 km (0.092 R)
• M14: 8,948,346 km (0.116 R)
• M15: 9,356,000 km (0.118 R)
• M16: 10,168,616 km (0.079 R)
• M17: 10,612,772 km (0.079 R)
• M18: 12,156,921 km (0.119 R)
• M19: 14,141,337 km (0.104 R)
• M20: 14,745,862 km (0.102 R)
• M21: 15,525,566 km (0.115 R)
• M22: 16,114,533 km (0.066 R)
• M23: 20,855,439 km (0.094 R)
• M24: 21,114,393 km (0.083 R)
• M25: 21,506,639 km (0.085 R)
• M26: 22,373,409 km (0.109 R)
• M27: 22,918,244 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 131.2

Radius: 5.4

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 8.19 AU - 11.81 AU

Year: 14552 Days

Day: 16.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 35,480,892 km

• M1: 67,169 km (0.106 R)
• M2: 329,714 km (0.11 R)
• M3: 581,637 km (0.114 R)
• M4: 779,854 km (0.043 R)
• M5: 957,875 km (0.07 R)
• M6: 1,238,521 km (0.051 R)
• M7: 1,651,560 km (0.093 R)
• M8: 2,249,653 km (0.103 R)
• M9: 2,561,864 km (0.049 R)
• M10: 2,922,245 km (0.065 R)
• M11: 4,655,187 km (0.107 R)
• M12: 5,017,961 km (0.085 R)
• M13: 5,612,613 km (0.115 R)
• M14: 6,154,008 km (0.052 R)
• M15: 7,120,709 km (0.076 R)
• M16: 7,564,566 km (0.079 R)
• M17: 9,091,960 km (0.082 R)
• M18: 11,399,956 km (0.082 R)
• M19: 11,751,511 km (0.05 R)
• M20: 12,742,148 km (0.116 R)
• M21: 14,769,499 km (0.099 R)
• M22: 16,424,350 km (0.032 R)
• M23: 17,329,417 km (0.098 R)
• M24: 17,660,477 km (0.079 R)
• M25: 20,610,398 km (0.119 R)
• M26: 23,226,715 km (0.028 R)
• M27: 29,014,357 km (0.115 R)
• M28: 31,106,184 km (0.046 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 534 - 18,045 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit