🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.56 AU - 0.76 AU

Year: 352 Days

Day: 32.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 21.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.7

Radius: 13.8

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.72 AU - 0.82 AU

Year: 443 Days

Day: 8.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 92,310,421 km

• M1: 171,589 km (0.057 R)
• M2: 605,871 km (0.1 R)
• M3: 1,038,957 km (0.08 R)
• M4: 1,986,510 km (0.109 R)
• M5: 2,470,609 km (0.044 R)
• M6: 4,535,359 km (0.036 R)
• M7: 5,599,000 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96

Radius: 13.9

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.02 AU - 1.22 AU

Year: 778 Days

Day: 5.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 92,310,421 km

• M1: 172,935 km (0.062 R)
• M2: 705,204 km (0.1 R)
• M3: 1,217,727 km (0.09 R)
• M4: 1,688,661 km (0.106 R)
• M5: 2,348,537 km (0.094 R)
• M6: 3,217,551 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.9

Radius: 15

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.59 AU - 1.91 AU

Year: 1519 Days

Day: 7.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 92,310,421 km

• M1: 186,698 km (0.052 R)
• M2: 691,142 km (0.117 R)
• M3: 1,254,528 km (0.092 R)
• M4: 2,075,820 km (0.119 R)
• M5: 2,590,886 km (0.089 R)
• M6: 3,176,711 km (0.077 R)
• M7: 3,782,732 km (0.101 R)
• M8: 4,427,499 km (0.07 R)
• M9: 4,999,710 km (0.07 R)
• M10: 6,318,116 km (0.04 R)
• M11: 6,814,333 km (0.099 R)
• M12: 7,390,434 km (0.103 R)
• M13: 8,462,303 km (0.119 R)
• M14: 9,253,825 km (0.102 R)
• M15: 9,765,151 km (0.119 R)
• M16: 11,020,426 km (0.101 R)
• M17: 12,806,027 km (0.081 R)
• M18: 13,645,420 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.3

Radius: 8.6

Gravity: 13.02 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.47 AU - 3.43 AU

Year: 3324 Days

Day: 14.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 92,310,421 km

• M1: 164,707 km (0.111 R)
• M2: 584,479 km (0.079 R)
• M3: 1,245,402 km (0.098 R)
• M4: 1,700,479 km (0.094 R)
• M5: 2,161,540 km (0.092 R)
• M6: 2,604,649 km (0.05 R)
• M7: 3,451,223 km (0.115 R)
• M8: 3,862,767 km (0.102 R)
• M9: 5,113,854 km (0.026 R)
• M10: 10,590,033 km (0.118 R)
• M11: 11,019,678 km (0.055 R)
• M12: 11,640,510 km (0.092 R)
• M13: 12,378,476 km (0.11 R)
• M14: 13,049,422 km (0.059 R)
• M15: 15,100,259 km (0.084 R)
• M16: 20,219,648 km (0.071 R)
• M17: 21,352,852 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.9

Radius: 13.8

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 4.02 AU - 6.6 AU

Year: 8027 Days

Day: 14.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 92,310,421 km

• M1: 174,880 km (0.077 R)
• M2: 1,002,605 km (0.076 R)
• M3: 1,564,794 km (0.041 R)
• M4: 2,633,820 km (0.099 R)
• M5: 3,129,737 km (0.114 R)
• M6: 3,688,186 km (0.118 R)
• M7: 4,144,310 km (0.1 R)
• M8: 4,715,774 km (0.079 R)
• M9: 5,540,208 km (0.093 R)
• M10: 6,820,017 km (0.063 R)
• M11: 8,559,242 km (0.116 R)
• M12: 11,506,619 km (0.111 R)
• M13: 11,990,868 km (0.081 R)
• M14: 13,314,360 km (0.099 R)
• M15: 14,341,499 km (0.071 R)
• M16: 17,486,645 km (0.061 R)
• M17: 18,127,821 km (0.075 R)
• M18: 19,868,692 km (0.106 R)
• M19: 29,278,398 km (0.06 R)
• M20: 31,013,434 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 833.4

Radius: 7.6

Gravity: 14.43 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 6 AU - 7.98 AU

Year: 12123 Days

Day: 22.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 92,310,421 km

• M1: 98,286 km (0.082 R)
• M2: 427,700 km (0.079 R)
• M3: 867,817 km (0.086 R)
• M4: 1,383,332 km (0.095 R)
• M5: 2,377,559 km (0.101 R)
• M6: 3,281,728 km (0.079 R)
• M7: 3,566,712 km (0.088 R)
• M8: 3,953,124 km (0.105 R)
• M9: 4,941,966 km (0.108 R)
• M10: 8,167,894 km (0.053 R)
• M11: 9,342,836 km (0.106 R)
• M12: 10,240,722 km (0.106 R)
• M13: 14,896,956 km (0.107 R)
• M14: 19,010,598 km (0.068 R)
• M15: 22,413,202 km (0.032 R)
• M16: 22,783,606 km (0.068 R)
• M17: 35,640,346 km (0.086 R)
• M18: 39,140,637 km (0.109 R)
• M19: 43,434,395 km (0.096 R)
• M20: 46,066,121 km (0.115 R)
• M21: 52,943,434 km (0.077 R)
• M22: 54,097,133 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 326.8

Radius: 7.2

Gravity: 6.3 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 7.76 AU - 12.66 AU

Year: 21402 Days

Day: 15.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 122 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 92,310,421 km

• M1: 89,609 km (0.046 R)
• M2: 1,438,384 km (0.073 R)
• M3: 2,509,355 km (0.118 R)
• M4: 3,235,652 km (0.041 R)
• M5: 3,470,820 km (0.085 R)
• M6: 4,064,724 km (0.062 R)
• M7: 5,525,996 km (0.082 R)
• M8: 7,352,287 km (0.063 R)
• M9: 7,714,463 km (0.116 R)
• M10: 13,505,546 km (0.066 R)
• M11: 14,326,689 km (0.081 R)
• M12: 18,109,121 km (0.036 R)
• M13: 20,053,295 km (0.116 R)
• M14: 21,853,556 km (0.095 R)
• M15: 25,772,123 km (0.112 R)
• M16: 37,964,948 km (0.037 R)
• M17: 42,996,373 km (0.11 R)
• M18: 50,534,161 km (0.066 R)
• M19: 53,679,157 km (0.066 R)
• M20: 60,538,818 km (0.059 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 982.1

Radius: 7

Gravity: 20.04 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 8.42 AU - 12.58 AU

Year: 22320 Days

Day: 19 Hours

Environment

Temp: -226 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 92,310,421 km

• M1: 87,066 km (0.025 R)
• M2: 404,513 km (0.075 R)
• M3: 709,692 km (0.119 R)
• M4: 1,598,304 km (0.09 R)
• M5: 1,902,287 km (0.088 R)
• M6: 2,887,987 km (0.072 R)
• M7: 4,758,409 km (0.076 R)
• M8: 6,123,190 km (0.072 R)
• M9: 7,166,636 km (0.078 R)
• M10: 8,603,523 km (0.094 R)
• M11: 8,947,149 km (0.086 R)
• M12: 11,893,928 km (0.042 R)
• M13: 12,905,360 km (0.076 R)
• M14: 15,181,042 km (0.083 R)
• M15: 17,619,637 km (0.092 R)
• M16: 18,455,740 km (0.086 R)
• M17: 19,907,886 km (0.03 R)
• M18: 23,589,340 km (0.107 R)
• M19: 26,240,962 km (0.052 R)
• M20: 32,816,687 km (0.1 R)
• M21: 33,938,671 km (0.034 R)
• M22: 36,259,233 km (0.054 R)
• M23: 37,155,922 km (0.074 R)
• M24: 41,862,870 km (0.119 R)
• M25: 48,017,177 km (0.103 R)
• M26: 48,375,763 km (0.102 R)
• M27: 49,644,951 km (0.108 R)
• M28: 58,951,135 km (0.106 R)
• M29: 64,446,464 km (0.093 R)
• M30: 64,664,278 km (0.111 R)
• M31: 70,967,584 km (0.085 R)
• M32: 76,931,004 km (0.108 R)
• M33: 79,908,451 km (0.061 R)
• M34: 86,886,892 km (0.106 R)
• M35: 87,419,461 km (0.105 R)
• M36: 92,033,956 km (0.091 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: 263 - 15,968 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit