🌌 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: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.56 AU - 0.62 AU

Year: 169 Days

Day: 32.3 Hours

Environment

Temp: 183 °C

Axial Tilt: 0.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.72

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.62 AU - 4.5 AU

Year: 3050 Days

Day: 37 Hours

Environment

Temp: -125 °C

Axial Tilt: 28.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 18,407,012 km

• M1: 34,707 km (0.03 R)

Planet 3 - Terrestrial

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 4.01 AU - 4.23 AU

Year: 3117 Days

Day: 44.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 18,407,012 km

• M1: 2,920,300 km (0.118 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.71 AU - 4.75 AU

Year: 3243 Days

Day: 47.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 8.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 18,407,012 km

• M1: 63,579 km (0.096 R)
• M2: 3,171,624 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.1

Radius: 9.5

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 4.32 AU - 4.64 AU

Year: 3535 Days

Day: 6.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 18,407,012 km

• M1: 118,182 km (0.054 R)
• M2: 522,695 km (0.078 R)
• M3: 867,368 km (0.109 R)
• M4: 1,385,276 km (0.068 R)
• M5: 1,830,330 km (0.099 R)
• M6: 2,136,557 km (0.103 R)
• M7: 2,533,141 km (0.101 R)
• M8: 4,222,998 km (0.086 R)
• M9: 6,112,270 km (0.111 R)
• M10: 6,425,827 km (0.096 R)
• M11: 6,888,533 km (0.12 R)
• M12: 7,373,380 km (0.075 R)
• M13: 8,734,421 km (0.091 R)
• M14: 11,233,603 km (0.1 R)
• M15: 11,865,654 km (0.092 R)
• M16: 12,646,854 km (0.059 R)
• M17: 13,505,546 km (0.087 R)
• M18: 13,994,282 km (0.103 R)
• M19: 14,311,280 km (0.111 R)
• M20: 14,819,315 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.1

Radius: 10.5

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 4.2 AU - 5.48 AU

Year: 3969 Days

Day: 12 Hours

Environment

Temp: -140 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 18,407,012 km

• M1: 130,599 km (0.107 R)
• M2: 460,313 km (0.109 R)
• M3: 2,465,672 km (0.107 R)
• M4: 2,943,488 km (0.104 R)
• M5: 3,451,672 km (0.093 R)
• M6: 4,458,765 km (0.101 R)
• M7: 4,854,301 km (0.092 R)
• M8: 6,138,300 km (0.101 R)
• M9: 6,945,680 km (0.112 R)
• M10: 9,889,018 km (0.088 R)
• M11: 11,099,414 km (0.059 R)
• M12: 12,151,087 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 850.4

Radius: 12.7

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.08 AU - 9.3 AU

Year: 8737 Days

Day: 13 Hours

Environment

Temp: -163 °C

Axial Tilt: 74.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 18,407,012 km

• M1: 158,125 km (0.071 R)
• M2: 774,767 km (0.082 R)
• M3: 1,424,920 km (0.069 R)
• M4: 2,402,542 km (0.111 R)
• M5: 3,206,481 km (0.058 R)
• M6: 3,609,797 km (0.08 R)
• M7: 4,182,457 km (0.055 R)
• M8: 4,666,107 km (0.115 R)
• M9: 5,282,899 km (0.063 R)
• M10: 5,849,426 km (0.085 R)
• M11: 6,346,091 km (0.072 R)
• M12: 7,965,039 km (0.063 R)
• M13: 8,893,893 km (0.1 R)
• M14: 9,361,087 km (0.091 R)
• M15: 11,287,459 km (0.105 R)
• M16: 13,465,604 km (0.107 R)
• M17: 14,334,618 km (0.097 R)
• M18: 17,024,088 km (0.072 R)
• M19: 17,745,748 km (0.091 R)
• M20: 18,188,408 km (0.042 R)
• M21: 21,331,310 km (0.104 R)
• M22: 22,085,582 km (0.069 R)
• M23: 23,031,340 km (0.076 R)
• M24: 24,093,635 km (0.103 R)
• M25: 26,699,181 km (0.053 R)
• M26: 28,369,890 km (0.069 R)
• M27: 30,739,670 km (0.108 R)
• M28: 34,252,377 km (0.098 R)
• M29: 37,659,469 km (0.089 R)
• M30: 40,136,810 km (0.066 R)
• M31: 40,644,993 km (0.113 R)
• M32: 42,985,303 km (0.051 R)
• M33: 44,323,456 km (0.073 R)
• M34: 45,413,874 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40

Radius: 8.5

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 7.4 AU - 10.34 AU

Year: 9848 Days

Day: 9.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 18,407,012 km

• M1: 106,364 km (0.103 R)
• M2: 677,678 km (0.102 R)
• M3: 1,259,464 km (0.103 R)
• M4: 1,740,272 km (0.033 R)
• M5: 3,051,946 km (0.11 R)
• M6: 5,391,208 km (0.101 R)
• M7: 5,860,197 km (0.039 R)
• M8: 6,222,972 km (0.074 R)
• M9: 7,166,935 km (0.111 R)
• M10: 7,703,692 km (0.036 R)
• M11: 8,044,775 km (0.103 R)
• M12: 9,060,545 km (0.117 R)
• M13: 13,806,238 km (0.094 R)
• M14: 15,945,936 km (0.068 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 308 - 11,584 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit