🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.48 AU - 0.58 AU

Year: 253 Days

Day: 27.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 16.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.56 AU - 0.58 AU

Year: 282 Days

Day: 30.7 Hours

Environment

Temp: -119 °C

Axial Tilt: 23.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 24,792,681 km

• M1: 37,848 km (0.098 R)
• M2: 56,398 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.9

Radius: 12.7

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.84 AU - 1.1 AU

Year: 627 Days

Day: 11.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 24,792,681 km

• M1: 157,975 km (0.1 R)
• M2: 831,315 km (0.115 R)
• M3: 1,244,056 km (0.086 R)
• M4: 1,761,365 km (0.036 R)
• M5: 2,620,356 km (0.103 R)
• M6: 3,402,454 km (0.116 R)
• M7: 3,971,674 km (0.073 R)
• M8: 4,589,363 km (0.113 R)

Asteroid Belt

Center: 1.6 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819.2

Radius: 11.6

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.15 AU - 2.31 AU

Year: 2185 Days

Day: 14.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,792,681 km

• M1: 144,212 km (0.094 R)
• M2: 896,091 km (0.118 R)
• M3: 1,342,641 km (0.1 R)
• M4: 2,033,185 km (0.067 R)
• M5: 2,460,735 km (0.119 R)
• M6: 2,995,548 km (0.112 R)
• M7: 3,680,108 km (0.06 R)
• M8: 4,722,805 km (0.094 R)
• M9: 6,344,446 km (0.116 R)
• M10: 8,118,826 km (0.12 R)
• M11: 8,634,639 km (0.086 R)
• M12: 9,379,338 km (0.069 R)
• M13: 10,020,215 km (0.103 R)
• M14: 10,766,110 km (0.041 R)
• M15: 11,913,077 km (0.096 R)
• M16: 12,327,014 km (0.032 R)
• M17: 13,897,193 km (0.109 R)
• M18: 14,263,559 km (0.076 R)
• M19: 14,824,999 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.6

Radius: 14

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.2 AU - 2.64 AU

Year: 2470 Days

Day: 14 Hours

Environment

Temp: -199 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,792,681 km

• M1: 174,581 km (0.074 R)
• M2: 690,843 km (0.113 R)
• M3: 1,150,258 km (0.066 R)
• M4: 1,628,822 km (0.069 R)
• M5: 2,385,488 km (0.085 R)
• M6: 3,226,078 km (0.073 R)
• M7: 3,708,681 km (0.102 R)
• M8: 4,427,798 km (0.064 R)
• M9: 4,970,240 km (0.093 R)
• M10: 7,326,406 km (0.043 R)
• M11: 9,243,652 km (0.097 R)
• M12: 10,195,394 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.9

Radius: 13.8

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.45 AU - 3.51 AU

Year: 3375 Days

Day: 14.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,792,681 km

• M1: 171,589 km (0.069 R)
• M2: 729,290 km (0.12 R)
• M3: 1,162,375 km (0.109 R)
• M4: 2,008,800 km (0.113 R)
• M5: 2,601,357 km (0.115 R)
• M6: 3,218,748 km (0.089 R)
• M7: 3,670,384 km (0.071 R)
• M8: 5,390,610 km (0.106 R)
• M9: 6,664,735 km (0.114 R)
• M10: 7,309,502 km (0.078 R)
• M11: 8,724,398 km (0.103 R)
• M12: 9,459,073 km (0.055 R)
• M13: 10,556,823 km (0.099 R)
• M14: 11,520,682 km (0.11 R)
• M15: 13,672,049 km (0.057 R)
• M16: 17,698,924 km (0.115 R)
• M17: 19,241,129 km (0.052 R)
• M18: 20,487,129 km (0.101 R)
• M19: 22,321,049 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.6

Radius: 8

Gravity: 10.12 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.78 AU - 3.7 AU

Year: 3826 Days

Day: 6.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 24,792,681 km

• M1: 99,931 km (0.116 R)
• M2: 351,854 km (0.118 R)
• M3: 1,176,438 km (0.053 R)
• M4: 1,443,769 km (0.11 R)
• M5: 1,703,621 km (0.057 R)
• M6: 2,231,701 km (0.082 R)
• M7: 2,503,072 km (0.1 R)
• M8: 3,433,271 km (0.111 R)
• M9: 5,787,493 km (0.082 R)
• M10: 7,198,650 km (0.099 R)
• M11: 8,071,104 km (0.074 R)
• M12: 8,353,396 km (0.103 R)
• M13: 8,605,618 km (0.066 R)
• M14: 9,087,622 km (0.093 R)
• M15: 9,745,104 km (0.085 R)
• M16: 10,600,505 km (0.056 R)
• M17: 11,372,729 km (0.1 R)
• M18: 12,980,906 km (0.079 R)
• M19: 13,516,317 km (0.097 R)
• M20: 14,269,842 km (0.109 R)
• M21: 15,533,345 km (0.09 R)
• M22: 16,812,706 km (0.044 R)
• M23: 17,215,723 km (0.095 R)
• M24: 19,015,984 km (0.073 R)
• M25: 19,961,592 km (0.052 R)
• M26: 22,151,854 km (0.092 R)
• M27: 22,845,988 km (0.093 R)
• M28: 23,269,500 km (0.053 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 503 - 17,998 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit