🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.55 AU - 0.71 AU

Year: 328 Days

Day: 12.9 Hours

Environment

Temp: -141 °C

Axial Tilt: 30 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.4

Radius: 10.4

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.67 AU - 0.79 AU

Year: 409 Days

Day: 6.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,678,618 km

• M1: 129,402 km (0.116 R)
• M2: 583,282 km (0.107 R)
• M3: 1,029,981 km (0.109 R)
• M4: 1,443,619 km (0.085 R)
• M5: 1,769,593 km (0.09 R)
• M6: 2,145,533 km (0.1 R)
• M7: 2,594,925 km (0.045 R)
• M8: 2,939,748 km (0.046 R)
• M9: 3,558,335 km (0.05 R)
• M10: 3,945,644 km (0.036 R)
• M11: 5,378,941 km (0.065 R)
• M12: 5,821,003 km (0.117 R)
• M13: 6,213,847 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.6

Radius: 9.8

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.58 AU - 0.96 AU

Year: 443 Days

Day: 7.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,678,618 km

• M1: 121,922 km (0.057 R)
• M2: 498,610 km (0.052 R)
• M3: 864,825 km (0.117 R)
• M4: 1,367,474 km (0.066 R)
• M5: 1,793,080 km (0.096 R)
• M6: 2,158,996 km (0.089 R)
• M7: 2,924,040 km (0.102 R)
• M8: 3,457,356 km (0.1 R)
• M9: 3,788,716 km (0.087 R)
• M10: 4,141,318 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.6

Radius: 9.1

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.04 AU - 1.36 AU

Year: 862 Days

Day: 8.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,678,618 km

• M1: 113,395 km (0.066 R)
• M2: 411,095 km (0.049 R)
• M3: 724,951 km (0.073 R)
• M4: 1,252,733 km (0.11 R)
• M5: 1,653,056 km (0.109 R)
• M6: 1,991,447 km (0.081 R)
• M7: 2,408,675 km (0.108 R)
• M8: 2,702,785 km (0.117 R)
• M9: 3,033,695 km (0.096 R)
• M10: 3,531,557 km (0.072 R)
• M11: 3,913,181 km (0.089 R)
• M12: 4,322,182 km (0.063 R)
• M13: 5,115,948 km (0.06 R)
• M14: 5,683,971 km (0.112 R)
• M15: 6,614,171 km (0.119 R)
• M16: 7,058,776 km (0.066 R)
• M17: 8,410,542 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764

Radius: 11.3

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.98 AU - 2.1 AU

Year: 1911 Days

Day: 5.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,678,618 km

• M1: 140,622 km (0.065 R)
• M2: 495,767 km (0.098 R)
• M3: 859,889 km (0.103 R)
• M4: 1,459,028 km (0.08 R)
• M5: 1,849,329 km (0.039 R)
• M6: 2,493,497 km (0.077 R)
• M7: 3,153,224 km (0.102 R)
• M8: 3,602,766 km (0.088 R)
• M9: 3,963,147 km (0.111 R)
• M10: 5,237,421 km (0.089 R)
• M11: 5,749,944 km (0.092 R)
• M12: 6,902,745 km (0.081 R)
• M13: 7,262,977 km (0.117 R)
• M14: 7,991,219 km (0.102 R)
• M15: 8,993,674 km (0.067 R)
• M16: 10,946,824 km (0.061 R)
• M17: 11,592,040 km (0.11 R)
• M18: 12,342,872 km (0.095 R)
• M19: 13,125,867 km (0.12 R)
• M20: 13,723,809 km (0.093 R)
• M21: 14,474,192 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664

Radius: 13.1

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.78 AU - 2.48 AU

Year: 2039 Days

Day: 12.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,678,618 km

• M1: 167,998 km (0.11 R)
• M2: 676,332 km (0.119 R)
• M3: 1,188,854 km (0.059 R)
• M4: 1,996,533 km (0.081 R)
• M5: 2,437,697 km (0.061 R)
• M6: 3,129,139 km (0.084 R)
• M7: 4,097,635 km (0.087 R)
• M8: 4,862,529 km (0.086 R)
• M9: 6,110,923 km (0.038 R)
• M10: 6,837,371 km (0.094 R)
• M11: 14,026,596 km (0.068 R)
• M12: 15,952,070 km (0.047 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.6

Radius: 10.8

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.4 AU - 3.38 AU

Year: 3223 Days

Day: 5.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,678,618 km

• M1: 134,638 km (0.074 R)
• M2: 742,155 km (0.062 R)
• M3: 1,188,106 km (0.092 R)
• M4: 2,172,460 km (0.119 R)
• M5: 2,551,990 km (0.101 R)
• M6: 3,059,426 km (0.067 R)
• M7: 5,140,332 km (0.065 R)
• M8: 5,953,546 km (0.061 R)
• M9: 6,307,495 km (0.096 R)
• M10: 8,094,741 km (0.1 R)
• M11: 11,354,478 km (0.11 R)
• M12: 12,508,476 km (0.091 R)
• M13: 12,909,997 km (0.072 R)
• M14: 14,166,619 km (0.117 R)
• M15: 15,048,349 km (0.117 R)
• M16: 16,813,454 km (0.117 R)
• M17: 20,812,804 km (0.087 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.3

Radius: 9.1

Gravity: 11.38 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 3.6 AU - 4.86 AU

Year: 5707 Days

Day: 14.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 36,678,618 km

• M1: 114,442 km (0.095 R)
• M2: 451,786 km (0.048 R)
• M3: 785,987 km (0.098 R)
• M4: 1,171,202 km (0.097 R)
• M5: 1,562,999 km (0.088 R)
• M6: 1,950,307 km (0.112 R)
• M7: 2,633,371 km (0.075 R)
• M8: 2,940,047 km (0.083 R)
• M9: 3,249,266 km (0.113 R)
• M10: 3,672,329 km (0.065 R)
• M11: 4,056,795 km (0.092 R)
• M12: 6,992,354 km (0.094 R)
• M13: 7,358,869 km (0.088 R)
• M14: 9,925,071 km (0.087 R)
• M15: 12,547,970 km (0.111 R)
• M16: 13,932,498 km (0.11 R)
• M17: 15,662,897 km (0.046 R)
• M18: 16,227,928 km (0.113 R)
• M19: 19,834,882 km (0.118 R)
• M20: 20,720,053 km (0.039 R)
• M21: 21,172,287 km (0.073 R)
• M22: 23,615,071 km (0.095 R)
• M23: 23,943,438 km (0.07 R)
• M24: 25,544,734 km (0.073 R)
• M25: 27,758,782 km (0.05 R)
• M26: 29,430,090 km (0.117 R)
• M27: 30,873,261 km (0.066 R)
• M28: 31,661,941 km (0.059 R)
• M29: 32,565,212 km (0.1 R)
• M30: 33,074,294 km (0.105 R)
• M31: 35,808,046 km (0.094 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: 343 - 10,993 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit