🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.48 AU - 0.6 AU

Year: 260 Days

Day: 32.1 Hours

Environment

Temp: -120 °C

Axial Tilt: 11.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.91

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.52 AU - 0.58 AU

Year: 268 Days

Day: 30.3 Hours

Environment

Temp: -129 °C

Axial Tilt: 60.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.82

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.6 AU - 0.7 AU

Year: 344 Days

Day: 38.4 Hours

Environment

Temp: -126 °C

Axial Tilt: 43.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.9

Radius: 10.8

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.84 AU - 0.92 AU

Year: 542 Days

Day: 7 Hours

Environment

Temp: -156 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,622,037 km

• M1: 134,339 km (0.093 R)
• M2: 512,373 km (0.041 R)
• M3: 989,740 km (0.099 R)
• M4: 1,529,788 km (0.052 R)
• M5: 1,881,792 km (0.073 R)
• M6: 2,259,526 km (0.101 R)
• M7: 2,645,040 km (0.087 R)
• M8: 3,050,899 km (0.06 R)
• M9: 3,946,392 km (0.049 R)
• M10: 4,714,876 km (0.05 R)
• M11: 5,562,198 km (0.111 R)
• M12: 5,984,663 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.7

Radius: 13.1

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.1 AU - 1.78 AU

Year: 1134 Days

Day: 6.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 162.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,622,037 km

• M1: 162,912 km (0.092 R)
• M2: 573,259 km (0.112 R)
• M3: 1,110,764 km (0.114 R)
• M4: 1,620,743 km (0.119 R)
• M5: 2,062,805 km (0.079 R)
• M6: 2,775,788 km (0.034 R)
• M7: 3,238,196 km (0.118 R)
• M8: 4,092,699 km (0.042 R)
• M9: 5,610,668 km (0.096 R)
• M10: 6,399,647 km (0.044 R)
• M11: 7,050,548 km (0.109 R)
• M12: 8,020,540 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.2

Radius: 11.4

Gravity: 7.49 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.19 AU - 2.61 AU

Year: 2439 Days

Day: 9.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,622,037 km

• M1: 145,409 km (0.104 R)
• M2: 521,797 km (0.06 R)
• M3: 879,037 km (0.109 R)
• M4: 1,334,114 km (0.115 R)
• M5: 1,885,382 km (0.09 R)
• M6: 3,079,622 km (0.115 R)
• M7: 3,599,026 km (0.066 R)
• M8: 4,113,941 km (0.108 R)
• M9: 5,169,654 km (0.067 R)
• M10: 5,567,734 km (0.109 R)
• M11: 7,400,906 km (0.101 R)
• M12: 8,071,104 km (0.06 R)
• M13: 8,574,202 km (0.103 R)
• M14: 10,171,758 km (0.114 R)
• M15: 10,719,585 km (0.071 R)
• M16: 11,204,581 km (0.09 R)
• M17: 11,619,865 km (0.064 R)
• M18: 12,569,961 km (0.094 R)
• M19: 13,385,120 km (0.083 R)
• M20: 16,043,025 km (0.11 R)
• M21: 17,942,769 km (0.034 R)
• M22: 18,339,951 km (0.068 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185

Radius: 8.5

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.96 AU - 3.86 AU

Year: 4131 Days

Day: 14.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 78,622,037 km

• M1: 105,766 km (0.09 R)
• M2: 492,775 km (0.088 R)
• M3: 922,720 km (0.106 R)
• M4: 1,308,832 km (0.109 R)
• M5: 2,215,096 km (0.113 R)
• M6: 3,386,746 km (0.108 R)
• M7: 7,311,147 km (0.063 R)
• M8: 7,662,553 km (0.113 R)
• M9: 8,982,305 km (0.068 R)
• M10: 10,156,648 km (0.091 R)
• M11: 10,557,720 km (0.115 R)
• M12: 11,824,365 km (0.034 R)
• M13: 13,711,243 km (0.109 R)
• M14: 14,473,594 km (0.115 R)
• M15: 15,741,885 km (0.094 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.6

Radius: 8.7

Gravity: 9.1 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.8 AU - 5.9 AU

Year: 7007 Days

Day: 12 Hours

Environment

Temp: -217 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 78,622,037 km

• M1: 122,820 km (0.06 R)
• M2: 1,222,663 km (0.056 R)
• M3: 1,741,618 km (0.072 R)
• M4: 2,148,225 km (0.085 R)
• M5: 2,562,013 km (0.073 R)
• M6: 3,689,682 km (0.056 R)
• M7: 4,029,718 km (0.094 R)
• M8: 5,358,147 km (0.081 R)
• M9: 7,214,208 km (0.051 R)
• M10: 10,290,838 km (0.082 R)
• M11: 10,918,101 km (0.095 R)
• M12: 11,468,472 km (0.047 R)
• M13: 12,248,625 km (0.114 R)
• M14: 13,799,207 km (0.111 R)
• M15: 17,895,196 km (0.114 R)
• M16: 19,302,613 km (0.083 R)
• M17: 22,098,149 km (0.105 R)
• M18: 24,049,354 km (0.11 R)
• M19: 29,809,171 km (0.098 R)
• M20: 32,288,456 km (0.109 R)
• M21: 33,421,660 km (0.07 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691.9

Radius: 13.2

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 5.11 AU - 5.57 AU

Year: 8095 Days

Day: 8.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 78,622,037 km

• M1: 175,030 km (0.084 R)
• M2: 595,250 km (0.113 R)
• M3: 1,127,370 km (0.059 R)
• M4: 1,645,876 km (0.11 R)
• M5: 2,254,739 km (0.107 R)
• M6: 3,612,789 km (0.101 R)
• M7: 4,135,484 km (0.116 R)
• M8: 5,089,469 km (0.066 R)
• M9: 5,618,896 km (0.067 R)
• M10: 6,150,716 km (0.101 R)
• M11: 8,240,748 km (0.062 R)
• M12: 12,791,067 km (0.052 R)
• M13: 18,501,816 km (0.051 R)
• M14: 20,992,321 km (0.097 R)
• M15: 26,170,951 km (0.093 R)
• M16: 31,313,228 km (0.101 R)
• M17: 32,143,945 km (0.044 R)
• M18: 34,834,463 km (0.084 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 692

Radius: 6.1

Gravity: 18.6 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 8.15 AU - 11.95 AU

Year: 20901 Days

Day: 24.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 78,622,037 km

• M1: 76,145 km (0.102 R)
• M2: 373,995 km (0.092 R)
• M3: 597,793 km (0.067 R)
• M4: 1,288,486 km (0.098 R)
• M5: 1,504,655 km (0.115 R)
• M6: 1,837,361 km (0.116 R)
• M7: 2,112,920 km (0.074 R)
• M8: 2,601,657 km (0.097 R)
• M9: 3,990,224 km (0.119 R)
• M10: 5,895,203 km (0.066 R)
• M11: 6,105,538 km (0.05 R)
• M12: 6,904,540 km (0.106 R)
• M13: 7,671,528 km (0.067 R)
• M14: 11,376,918 km (0.116 R)
• M15: 12,239,051 km (0.085 R)
• M16: 14,698,739 km (0.084 R)
• M17: 15,008,257 km (0.091 R)
• M18: 16,621,221 km (0.104 R)
• M19: 17,642,526 km (0.085 R)
• M20: 18,080,249 km (0.084 R)
• M21: 18,346,384 km (0.119 R)
• M22: 18,705,119 km (0.07 R)
• M23: 20,282,629 km (0.103 R)
• M24: 23,699,594 km (0.083 R)
• M25: 28,666,243 km (0.057 R)
• M26: 29,638,031 km (0.043 R)
• M27: 30,132,153 km (0.088 R)
• M28: 35,240,770 km (0.117 R)
• M29: 38,508,736 km (0.107 R)
• M30: 38,802,247 km (0.06 R)
• M31: 43,383,682 km (0.089 R)
• M32: 43,860,749 km (0.062 R)
• M33: 44,825,356 km (0.093 R)
• M34: 50,912,045 km (0.104 R)
• M35: 52,876,265 km (0.081 R)
• M36: 55,448,451 km (0.103 R)
• M37: 60,049,932 km (0.068 R)
• M38: 66,783,481 km (0.103 R)
• M39: 67,206,993 km (0.057 R)
• M40: 74,911,882 km (0.108 R)
• M41: 76,289,080 km (0.11 R)
• M42: 77,216,736 km (0.096 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 444 - 14,211 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit