🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.43 AU - 0.59 AU

Year: 239 Days

Day: 14.2 Hours

Environment

Temp: -122 °C

Axial Tilt: 37.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.2

Radius: 9

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.63 AU - 0.73 AU

Year: 368 Days

Day: 9.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,754,569 km

• M1: 114,442 km (0.078 R)
• M2: 417,228 km (0.066 R)
• M3: 860,487 km (0.102 R)
• M4: 1,192,445 km (0.118 R)
• M5: 1,532,032 km (0.092 R)
• M6: 1,943,875 km (0.069 R)
• M7: 2,264,164 km (0.096 R)
• M8: 2,554,832 km (0.12 R)
• M9: 3,043,419 km (0.108 R)
• M10: 4,181,709 km (0.083 R)
• M11: 4,734,174 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236

Radius: 11

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.67 AU - 0.99 AU

Year: 496 Days

Day: 6.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 78,754,569 km

• M1: 136,732 km (0.085 R)
• M2: 559,496 km (0.065 R)
• M3: 951,592 km (0.096 R)
• M4: 1,345,034 km (0.082 R)
• M5: 1,963,472 km (0.091 R)
• M6: 2,716,697 km (0.099 R)
• M7: 3,135,123 km (0.12 R)
• M8: 3,733,215 km (0.111 R)
• M9: 4,152,388 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.4

Radius: 10.4

Gravity: 6.9 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.84 AU - 1.38 AU

Year: 767 Days

Day: 5.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,754,569 km

• M1: 138,378 km (0.109 R)
• M2: 812,616 km (0.05 R)
• M3: 1,850,526 km (0.115 R)
• M4: 2,251,448 km (0.075 R)
• M5: 2,828,447 km (0.117 R)
• M6: 3,178,356 km (0.076 R)
• M7: 3,557,437 km (0.067 R)
• M8: 4,043,032 km (0.095 R)
• M9: 5,968,357 km (0.112 R)
• M10: 6,316,172 km (0.082 R)
• M11: 6,985,473 km (0.11 R)
• M12: 7,893,831 km (0.039 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.5

Radius: 13.5

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.27 AU - 1.57 AU

Year: 1110 Days

Day: 14.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 78,754,569 km

• M1: 167,849 km (0.065 R)
• M2: 616,792 km (0.114 R)
• M3: 1,236,726 km (0.102 R)
• M4: 2,315,027 km (0.032 R)
• M5: 3,445,089 km (0.08 R)
• M6: 3,884,458 km (0.112 R)
• M7: 4,327,418 km (0.117 R)
• M8: 4,840,837 km (0.052 R)
• M9: 5,276,915 km (0.03 R)
• M10: 5,698,033 km (0.092 R)
• M11: 6,360,901 km (0.045 R)
• M12: 7,689,031 km (0.096 R)
• M13: 8,285,179 km (0.111 R)
• M14: 9,337,899 km (0.058 R)
• M15: 9,777,268 km (0.068 R)
• M16: 10,415,752 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.2

Radius: 14.6

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 3.43 AU - 3.63 AU

Year: 4351 Days

Day: 11.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,754,569 km

• M1: 181,612 km (0.075 R)
• M2: 667,655 km (0.078 R)
• M3: 1,517,072 km (0.117 R)
• M4: 2,273,140 km (0.113 R)
• M5: 3,362,511 km (0.085 R)
• M6: 4,212,377 km (0.105 R)
• M7: 4,855,648 km (0.114 R)
• M8: 5,762,660 km (0.088 R)
• M9: 6,755,241 km (0.084 R)
• M10: 10,524,509 km (0.109 R)
• M11: 11,319,772 km (0.116 R)
• M12: 12,080,626 km (0.12 R)
• M13: 13,069,618 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 483.5

Radius: 7.2

Gravity: 9.33 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.69 AU - 7.75 AU

Year: 10176 Days

Day: 21.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 78,754,569 km

• M1: 150,047 km (0.046 R)
• M2: 627,563 km (0.057 R)
• M3: 1,015,321 km (0.107 R)
• M4: 1,423,573 km (0.097 R)
• M5: 1,680,582 km (0.12 R)
• M6: 2,510,402 km (0.087 R)
• M7: 3,191,521 km (0.111 R)
• M8: 3,710,177 km (0.065 R)
• M9: 7,180,548 km (0.104 R)
• M10: 7,455,659 km (0.069 R)
• M11: 7,737,950 km (0.066 R)
• M12: 8,409,943 km (0.094 R)
• M13: 10,659,895 km (0.063 R)
• M14: 13,757,918 km (0.068 R)
• M15: 14,060,704 km (0.11 R)
• M16: 15,707,776 km (0.086 R)
• M17: 19,914,618 km (0.056 R)
• M18: 22,904,032 km (0.082 R)
• M19: 26,087,176 km (0.063 R)
• M20: 30,159,679 km (0.069 R)
• M21: 30,877,150 km (0.087 R)
• M22: 34,525,094 km (0.057 R)
• M23: 37,383,909 km (0.111 R)
• M24: 40,768,561 km (0.12 R)
• M25: 41,393,731 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 718.4

Radius: 6.2

Gravity: 18.69 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 8.38 AU - 12.68 AU

Year: 22416 Days

Day: 17.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 78,754,569 km

• M1: 90,956 km (0.099 R)
• M2: 604,675 km (0.105 R)
• M3: 826,977 km (0.118 R)
• M4: 1,200,523 km (0.094 R)
• M5: 1,525,001 km (0.105 R)
• M6: 2,216,442 km (0.033 R)
• M7: 4,471,630 km (0.075 R)
• M8: 5,695,490 km (0.077 R)
• M9: 6,610,730 km (0.096 R)
• M10: 6,842,457 km (0.09 R)
• M11: 10,062,551 km (0.082 R)
• M12: 10,369,376 km (0.106 R)
• M13: 11,262,027 km (0.077 R)
• M14: 12,067,163 km (0.095 R)
• M15: 14,712,053 km (0.094 R)
• M16: 15,510,008 km (0.075 R)
• M17: 17,631,156 km (0.1 R)
• M18: 18,714,694 km (0.056 R)
• M19: 19,179,195 km (0.077 R)
• M20: 27,932,166 km (0.107 R)
• M21: 31,965,624 km (0.058 R)
• M22: 35,515,881 km (0.096 R)
• M23: 39,018,416 km (0.1 R)
• M24: 42,266,186 km (0.058 R)
• M25: 49,469,772 km (0.113 R)
• M26: 54,953,132 km (0.075 R)
• M27: 57,645,146 km (0.056 R)
• M28: 66,032,500 km (0.094 R)
• M29: 66,676,369 km (0.111 R)
• M30: 67,758,560 km (0.107 R)
• M31: 69,736,244 km (0.098 R)
• M32: 71,300,589 km (0.047 R)
• M33: 73,806,204 km (0.117 R)
• M34: 81,673,855 km (0.069 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 551.2

Radius: 6.2

Gravity: 14.34 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 10.68 AU - 11.04 AU

Year: 23478 Days

Day: 20.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 78,754,569 km

• M1: 77,492 km (0.113 R)
• M2: 283,937 km (0.101 R)
• M3: 575,204 km (0.112 R)
• M4: 816,206 km (0.056 R)
• M5: 1,444,068 km (0.114 R)
• M6: 1,695,542 km (0.111 R)
• M7: 2,420,942 km (0.048 R)
• M8: 2,655,213 km (0.103 R)
• M9: 3,251,959 km (0.09 R)
• M10: 3,508,519 km (0.045 R)
• M11: 4,708,294 km (0.081 R)
• M12: 7,390,883 km (0.081 R)
• M13: 12,397,325 km (0.115 R)
• M14: 14,267,598 km (0.079 R)
• M15: 15,269,754 km (0.116 R)
• M16: 18,023,402 km (0.1 R)
• M17: 18,289,088 km (0.109 R)
• M18: 19,938,105 km (0.077 R)
• M19: 20,993,368 km (0.056 R)
• M20: 31,189,810 km (0.077 R)
• M21: 35,995,940 km (0.088 R)
• M22: 37,846,167 km (0.046 R)
• M23: 39,460,328 km (0.066 R)
• M24: 42,825,532 km (0.106 R)
• M25: 45,389,789 km (0.085 R)
• M26: 51,708,055 km (0.105 R)
• M27: 54,060,033 km (0.109 R)
• M28: 62,144,900 km (0.06 R)
• M29: 64,181,974 km (0.114 R)
• M30: 64,801,609 km (0.085 R)
• M31: 65,425,282 km (0.085 R)
• M32: 67,320,388 km (0.078 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 523 - 15,987 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit