🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.47 AU - 0.61 AU

Year: 146 Days

Day: 20.6 Hours

Environment

Temp: 170 °C

Axial Tilt: 5.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.75 AU - 1.25 AU

Year: 369 Days

Day: 29.8 Hours

Environment

Temp: 26 °C

Axial Tilt: 33 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.44

Radius: 0.72

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.32 AU - 1.48 AU

Year: 611 Days

Day: 41.5 Hours

Environment

Temp: -41 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.44

Radius: 1.16

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.45 AU - 2.59 AU

Year: 1476 Days

Day: 22.8 Hours

Environment

Temp: -82 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 3.96 AU - 4.36 AU

Year: 3131 Days

Day: 33.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 5.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 116,865,285 km

• M1: 729,140 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.2

Radius: 10

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.1 AU - 7.14 AU

Year: 5586 Days

Day: 13.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 116,865,285 km

• M1: 124,615 km (0.117 R)
• M2: 436,377 km (0.117 R)
• M3: 797,656 km (0.113 R)
• M4: 1,302,249 km (0.07 R)
• M5: 1,873,115 km (0.073 R)
• M6: 2,867,642 km (0.084 R)
• M7: 3,208,725 km (0.108 R)
• M8: 4,301,537 km (0.084 R)
• M9: 5,510,886 km (0.115 R)
• M10: 5,920,635 km (0.087 R)
• M11: 6,287,898 km (0.107 R)
• M12: 6,637,957 km (0.05 R)
• M13: 7,659,261 km (0.118 R)
• M14: 8,782,143 km (0.116 R)
• M15: 9,756,773 km (0.086 R)
• M16: 10,097,258 km (0.097 R)
• M17: 10,756,984 km (0.119 R)
• M18: 11,920,108 km (0.076 R)
• M19: 12,507,429 km (0.088 R)
• M20: 17,295,608 km (0.108 R)
• M21: 17,984,806 km (0.089 R)
• M22: 18,562,253 km (0.094 R)
• M23: 18,954,050 km (0.114 R)
• M24: 23,332,630 km (0.057 R)
• M25: 24,251,760 km (0.11 R)
• M26: 25,035,952 km (0.107 R)
• M27: 26,407,615 km (0.12 R)
• M28: 28,601,467 km (0.083 R)
• M29: 29,742,749 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 456.5

Radius: 3.9

Gravity: 30.01 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 17.65 AU - 21.23 AU

Year: 31624 Days

Day: 25 Hours

Environment

Temp: -196 °C

Axial Tilt: 93 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 116,865,285 km

• M1: 56,249 km (0.077 R)
• M2: 220,358 km (0.111 R)
• M3: 377,735 km (0.116 R)
• M4: 515,365 km (0.11 R)
• M5: 748,289 km (0.034 R)
• M6: 871,557 km (0.092 R)
• M7: 1,145,471 km (0.119 R)
• M8: 2,531,794 km (0.109 R)
• M9: 3,058,528 km (0.096 R)
• M10: 5,479,172 km (0.093 R)
• M11: 6,126,781 km (0.074 R)
• M12: 6,585,897 km (0.118 R)
• M13: 7,166,636 km (0.071 R)
• M14: 7,367,695 km (0.119 R)
• M15: 7,939,757 km (0.104 R)
• M16: 11,728,623 km (0.074 R)
• M17: 14,723,422 km (0.07 R)
• M18: 15,130,329 km (0.058 R)
• M19: 18,190,652 km (0.105 R)
• M20: 18,848,733 km (0.056 R)
• M21: 21,019,698 km (0.101 R)
• M22: 21,431,541 km (0.072 R)
• M23: 21,953,936 km (0.112 R)
• M24: 25,968,246 km (0.047 R)
• M25: 27,407,826 km (0.089 R)
• M26: 28,647,543 km (0.068 R)
• M27: 29,281,090 km (0.096 R)
• M28: 29,665,707 km (0.113 R)
• M29: 29,924,062 km (0.116 R)
• M30: 30,314,363 km (0.045 R)
• M31: 42,668,155 km (0.048 R)
• M32: 44,499,233 km (0.072 R)
• M33: 44,668,279 km (0.103 R)
• M34: 48,139,099 km (0.094 R)
• M35: 48,495,740 km (0.077 R)
• M36: 58,601,824 km (0.07 R)
• M37: 61,278,579 km (0.091 R)
• M38: 69,567,797 km (0.108 R)
• M39: 85,946,520 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 939.5

Radius: 5.6

Gravity: 29.96 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 17.03 AU - 22.57 AU

Year: 32507 Days

Day: 20.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 116,865,285 km

• M1: 87,964 km (0.117 R)
• M2: 308,920 km (0.045 R)
• M3: 1,263,055 km (0.098 R)
• M4: 1,566,140 km (0.059 R)
• M5: 2,918,206 km (0.065 R)
• M6: 3,896,875 km (0.116 R)
• M7: 4,700,814 km (0.089 R)
• M8: 5,610,219 km (0.082 R)
• M9: 6,427,921 km (0.105 R)
• M10: 7,771,011 km (0.053 R)
• M11: 9,226,748 km (0.101 R)
• M12: 10,783,763 km (0.097 R)
• M13: 11,661,902 km (0.118 R)
• M14: 15,562,666 km (0.115 R)
• M15: 15,930,079 km (0.116 R)
• M16: 16,209,378 km (0.048 R)
• M17: 24,796,296 km (0.064 R)
• M18: 25,933,539 km (0.115 R)
• M19: 26,710,700 km (0.119 R)
• M20: 27,905,388 km (0.106 R)
• M21: 31,996,890 km (0.104 R)
• M22: 33,954,079 km (0.106 R)
• M23: 35,513,039 km (0.119 R)
• M24: 36,793,895 km (0.08 R)
• M25: 38,105,420 km (0.087 R)
• M26: 41,695,769 km (0.047 R)
• M27: 47,976,037 km (0.049 R)
• M28: 49,146,042 km (0.108 R)
• M29: 60,997,335 km (0.089 R)
• M30: 61,224,574 km (0.063 R)
• M31: 62,369,746 km (0.063 R)
• M32: 63,063,730 km (0.104 R)
• M33: 65,652,222 km (0.074 R)
• M34: 70,788,964 km (0.112 R)
• M35: 81,853,073 km (0.114 R)
• M36: 84,365,121 km (0.12 R)
• M37: 86,640,654 km (0.075 R)
• M38: 103,080,413 km (0.089 R)
• M39: 107,990,065 km (0.109 R)
• M40: 108,656,225 km (0.032 R)
• M41: 115,469,360 km (0.073 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: 283 - 12,007 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit