🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.9 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.72 AU - 1.86 AU

Year: 1085 Days

Day: 27.3 Hours

Environment

Temp: -116 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.2

Radius: 12.4

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.76 AU - 2.74 AU

Year: 1529 Days

Day: 8.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,973,309 km

• M1: 154,235 km (0.095 R)
• M2: 545,883 km (0.047 R)
• M3: 1,008,888 km (0.07 R)
• M4: 1,792,930 km (0.091 R)
• M5: 2,394,912 km (0.034 R)
• M6: 4,307,970 km (0.101 R)
• M7: 5,190,448 km (0.11 R)
• M8: 5,783,454 km (0.07 R)
• M9: 6,169,117 km (0.092 R)
• M10: 6,812,986 km (0.104 R)
• M11: 7,740,792 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.3

Radius: 11.6

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.16 AU - 2.7 AU

Year: 1716 Days

Day: 14.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,973,309 km

• M1: 144,362 km (0.08 R)
• M2: 548,575 km (0.108 R)
• M3: 928,404 km (0.093 R)
• M4: 1,722,171 km (0.079 R)
• M5: 2,160,044 km (0.093 R)
• M6: 2,551,840 km (0.088 R)
• M7: 3,112,234 km (0.089 R)
• M8: 3,895,080 km (0.034 R)
• M9: 4,841,735 km (0.119 R)
• M10: 6,690,166 km (0.116 R)
• M11: 9,025,688 km (0.088 R)
• M12: 9,398,935 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.3

Radius: 8.5

Gravity: 9.94 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 6.06 AU - 7.36 AU

Year: 7874 Days

Day: 9.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 71,973,309 km

• M1: 122,521 km (0.044 R)
• M2: 505,940 km (0.06 R)
• M3: 1,136,944 km (0.118 R)
• M4: 1,594,265 km (0.069 R)
• M5: 2,022,114 km (0.114 R)
• M6: 2,378,457 km (0.074 R)
• M7: 2,836,974 km (0.047 R)
• M8: 3,109,093 km (0.065 R)
• M9: 4,831,114 km (0.042 R)
• M10: 5,600,047 km (0.047 R)
• M11: 7,979,999 km (0.118 R)
• M12: 8,313,303 km (0.104 R)
• M13: 8,874,744 km (0.096 R)
• M14: 9,415,092 km (0.109 R)
• M15: 10,512,093 km (0.053 R)
• M16: 11,065,754 km (0.09 R)
• M17: 13,014,865 km (0.115 R)
• M18: 14,070,577 km (0.097 R)
• M19: 16,552,107 km (0.059 R)
• M20: 17,026,482 km (0.119 R)
• M21: 18,073,667 km (0.052 R)
• M22: 18,431,954 km (0.109 R)
• M23: 20,065,562 km (0.113 R)
• M24: 21,632,450 km (0.081 R)
• M25: 21,955,283 km (0.078 R)
• M26: 22,693,548 km (0.095 R)
• M27: 23,363,597 km (0.091 R)
• M28: 23,703,633 km (0.084 R)
• M29: 25,007,827 km (0.071 R)
• M30: 30,603,835 km (0.109 R)
• M31: 30,908,865 km (0.093 R)
• M32: 34,398,834 km (0.068 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 710.9

Radius: 6.1

Gravity: 19.11 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 11.87 AU - 13.73 AU

Year: 20747 Days

Day: 15.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 71,973,309 km

• M1: 81,232 km (0.102 R)
• M2: 398,828 km (0.114 R)
• M3: 678,875 km (0.105 R)
• M4: 1,099,395 km (0.112 R)
• M5: 1,323,044 km (0.109 R)
• M6: 1,999,376 km (0.101 R)
• M7: 2,226,615 km (0.099 R)
• M8: 2,684,384 km (0.098 R)
• M9: 4,754,071 km (0.072 R)
• M10: 6,702,733 km (0.062 R)
• M11: 8,263,936 km (0.088 R)
• M12: 8,907,207 km (0.113 R)
• M13: 10,232,794 km (0.112 R)
• M14: 11,293,442 km (0.115 R)
• M15: 11,618,818 km (0.061 R)
• M16: 12,220,351 km (0.099 R)
• M17: 14,375,907 km (0.107 R)
• M18: 16,108,998 km (0.083 R)
• M19: 16,856,538 km (0.113 R)
• M20: 17,626,968 km (0.044 R)
• M21: 18,064,990 km (0.081 R)
• M22: 21,634,545 km (0.098 R)
• M23: 22,749,348 km (0.114 R)
• M24: 24,764,432 km (0.12 R)
• M25: 29,024,380 km (0.113 R)
• M26: 32,555,189 km (0.077 R)
• M27: 33,614,193 km (0.074 R)
• M28: 38,225,996 km (0.112 R)
• M29: 39,702,676 km (0.1 R)
• M30: 40,303,761 km (0.089 R)
• M31: 44,521,374 km (0.094 R)
• M32: 47,659,488 km (0.114 R)
• M33: 58,532,411 km (0.062 R)
• M34: 70,288,111 km (0.086 R)
• M35: 74,076,527 km (0.048 R)
• M36: 74,531,006 km (0.045 R)
• M37: 76,136,191 km (0.066 R)
• M38: 76,599,047 km (0.052 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 712.4

Radius: 6.2

Gravity: 18.53 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 13.4 AU - 15.02 AU

Year: 24267 Days

Day: 17.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 71,973,309 km

• M1: 88,113 km (0.117 R)
• M2: 538,702 km (0.06 R)
• M3: 1,022,950 km (0.067 R)
• M4: 2,662,244 km (0.032 R)
• M5: 3,002,429 km (0.103 R)
• M6: 3,490,717 km (0.045 R)
• M7: 3,738,152 km (0.088 R)
• M8: 4,408,350 km (0.074 R)
• M9: 4,847,270 km (0.096 R)
• M10: 5,274,671 km (0.07 R)
• M11: 6,385,136 km (0.049 R)
• M12: 7,694,866 km (0.067 R)
• M13: 8,168,642 km (0.101 R)
• M14: 8,717,666 km (0.089 R)
• M15: 8,944,008 km (0.066 R)
• M16: 9,232,433 km (0.058 R)
• M17: 10,964,178 km (0.109 R)
• M18: 11,631,982 km (0.045 R)
• M19: 13,048,225 km (0.117 R)
• M20: 13,645,719 km (0.107 R)
• M21: 14,895,011 km (0.085 R)
• M22: 15,630,434 km (0.119 R)
• M23: 18,348,628 km (0.099 R)
• M24: 20,458,706 km (0.086 R)
• M25: 22,512,535 km (0.057 R)
• M26: 26,548,685 km (0.045 R)
• M27: 30,131,405 km (0.086 R)
• M28: 31,570,686 km (0.113 R)
• M29: 41,818,290 km (0.075 R)
• M30: 44,269,899 km (0.073 R)
• M31: 47,162,225 km (0.087 R)
• M32: 49,278,137 km (0.032 R)
• M33: 49,997,254 km (0.041 R)
• M34: 51,640,886 km (0.1 R)
• M35: 53,131,778 km (0.095 R)
• M36: 55,421,523 km (0.098 R)
• M37: 55,615,252 km (0.108 R)
• M38: 56,199,282 km (0.111 R)
• M39: 56,590,780 km (0.12 R)
• M40: 57,776,343 km (0.084 R)
• M41: 65,671,969 km (0.111 R)
• M42: 71,012,015 km (0.092 R)
• M43: 77,357,358 km (0.09 R)
• M44: 82,042,165 km (0.088 R)
• M45: 82,546,011 km (0.097 R)
• M46: 83,814,750 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 336.8

Radius: 3.6

Gravity: 25.99 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 14.87 AU - 15.07 AU

Year: 26240 Days

Day: 22 Hours

Environment

Temp: -220 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,973,309 km

• M1: 287,527 km (0.053 R)
• M2: 492,775 km (0.099 R)
• M3: 2,146,430 km (0.108 R)
• M4: 2,468,664 km (0.104 R)
• M5: 3,345,008 km (0.059 R)
• M6: 3,898,820 km (0.077 R)
• M7: 5,884,133 km (0.078 R)
• M8: 6,047,494 km (0.103 R)
• M9: 6,909,926 km (0.096 R)
• M10: 7,417,661 km (0.117 R)
• M11: 8,352,648 km (0.056 R)
• M12: 16,694,524 km (0.079 R)
• M13: 18,988,907 km (0.055 R)
• M14: 22,962,076 km (0.104 R)
• M15: 29,786,731 km (0.099 R)
• M16: 32,754,753 km (0.089 R)
• M17: 47,246,748 km (0.096 R)
• M18: 48,728,664 km (0.097 R)
• M19: 53,182,941 km (0.12 R)
• M20: 60,361,245 km (0.1 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 297 - 15,707 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit