🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.02 AU - 1.4 AU

Year: 504 Days

Day: 19.2 Hours

Environment

Temp: -19 °C

Axial Tilt: 34.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 3.09 AU - 3.87 AU

Year: 2459 Days

Day: 16.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 29.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.11 AU - 4.83 AU

Year: 2996 Days

Day: 31 Hours

Environment

Temp: -126 °C

Axial Tilt: 43.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.37 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.5

Radius: 14.7

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 5.54 AU - 7.98 AU

Year: 6657 Days

Day: 6.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 90,048,088 km

• M1: 202,705 km (0.03 R)
• M2: 736,321 km (0.065 R)
• M3: 1,422,377 km (0.043 R)
• M4: 2,084,796 km (0.12 R)
• M5: 3,644,204 km (0.079 R)
• M6: 4,829,169 km (0.066 R)
• M7: 16,737,459 km (0.103 R)
• M8: 19,391,175 km (0.072 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 615.5

Radius: 6.4

Gravity: 15.03 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 9.99 AU - 15.47 AU

Year: 17202 Days

Day: 21.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 90,048,088 km

• M1: 80,932 km (0.114 R)
• M2: 281,842 km (0.073 R)
• M3: 693,835 km (0.097 R)
• M4: 1,399,638 km (0.034 R)
• M5: 1,713,943 km (0.066 R)
• M6: 1,980,077 km (0.102 R)
• M7: 3,983,791 km (0.113 R)
• M8: 4,388,454 km (0.098 R)
• M9: 5,099,642 km (0.062 R)
• M10: 5,768,195 km (0.092 R)
• M11: 6,705,425 km (0.087 R)
• M12: 7,054,138 km (0.097 R)
• M13: 7,693,220 km (0.086 R)
• M14: 9,567,981 km (0.081 R)
• M15: 10,523,612 km (0.109 R)
• M16: 11,235,398 km (0.072 R)
• M17: 11,852,789 km (0.055 R)
• M18: 13,426,409 km (0.031 R)
• M19: 14,334,618 km (0.111 R)
• M20: 14,913,412 km (0.095 R)
• M21: 17,548,279 km (0.037 R)
• M22: 20,659,915 km (0.106 R)
• M23: 21,491,679 km (0.096 R)
• M24: 22,249,542 km (0.097 R)
• M25: 22,927,220 km (0.091 R)
• M26: 28,173,019 km (0.101 R)
• M27: 31,676,152 km (0.077 R)
• M28: 36,649,833 km (0.109 R)
• M29: 48,592,829 km (0.107 R)
• M30: 50,723,252 km (0.116 R)
• M31: 53,086,151 km (0.052 R)
• M32: 55,698,279 km (0.1 R)
• M33: 63,465,849 km (0.073 R)
• M34: 65,022,864 km (0.072 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 236.7

Radius: 5.9

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 12.86 AU - 17.15 AU

Year: 22003 Days

Day: 18.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 90,048,088 km

• M1: 79,287 km (0.068 R)
• M2: 2,468,365 km (0.104 R)
• M3: 2,702,785 km (0.101 R)
• M4: 3,367,149 km (0.062 R)
• M5: 4,018,797 km (0.098 R)
• M6: 7,479,445 km (0.08 R)
• M7: 7,700,700 km (0.084 R)
• M8: 14,487,058 km (0.027 R)
• M9: 15,181,042 km (0.054 R)
• M10: 19,565,606 km (0.102 R)
• M11: 21,373,048 km (0.085 R)
• M12: 27,668,575 km (0.105 R)
• M13: 30,498,667 km (0.118 R)
• M14: 35,096,558 km (0.108 R)
• M15: 42,897,638 km (0.062 R)
• M16: 49,105,052 km (0.098 R)
• M17: 49,881,764 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 906.9

Radius: 5.8

Gravity: 26.96 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 14.29 AU - 16.05 AU

Year: 22378 Days

Day: 15.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 90,048,088 km

• M1: 121,773 km (0.116 R)
• M2: 319,092 km (0.112 R)
• M3: 689,347 km (0.117 R)
• M4: 893,548 km (0.06 R)
• M5: 1,379,143 km (0.096 R)
• M6: 3,048,206 km (0.088 R)
• M7: 3,276,343 km (0.098 R)
• M8: 3,831,501 km (0.089 R)
• M9: 4,131,594 km (0.079 R)
• M10: 4,629,755 km (0.086 R)
• M11: 5,087,674 km (0.065 R)
• M12: 6,228,059 km (0.067 R)
• M13: 6,596,369 km (0.109 R)
• M14: 7,225,876 km (0.09 R)
• M15: 7,736,603 km (0.098 R)
• M16: 8,271,117 km (0.108 R)
• M17: 10,528,549 km (0.091 R)
• M18: 11,386,792 km (0.117 R)
• M19: 11,937,461 km (0.103 R)
• M20: 12,505,784 km (0.106 R)
• M21: 12,943,657 km (0.089 R)
• M22: 13,696,283 km (0.115 R)
• M23: 14,879,154 km (0.084 R)
• M24: 15,873,381 km (0.066 R)
• M25: 16,647,550 km (0.079 R)
• M26: 17,901,330 km (0.086 R)
• M27: 20,294,746 km (0.034 R)
• M28: 22,785,252 km (0.108 R)
• M29: 25,705,402 km (0.053 R)
• M30: 26,413,000 km (0.107 R)
• M31: 26,771,736 km (0.083 R)
• M32: 40,196,349 km (0.036 R)
• M33: 41,309,358 km (0.071 R)
• M34: 45,623,461 km (0.113 R)
• M35: 47,535,771 km (0.115 R)
• M36: 55,523,848 km (0.069 R)
• M37: 57,902,903 km (0.101 R)
• M38: 70,135,371 km (0.092 R)
• M39: 74,566,460 km (0.098 R)
• M40: 82,445,032 km (0.097 R)
• M41: 86,584,405 km (0.045 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 303 - 16,051 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit