🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.6

Radius: 9.3

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.64 AU - 0.96 AU

Year: 462 Days

Day: 10.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,285,780 km

• M1: 115,639 km (0.102 R)
• M2: 412,890 km (0.118 R)
• M3: 1,072,018 km (0.114 R)
• M4: 1,999,824 km (0.044 R)
• M5: 2,312,484 km (0.102 R)
• M6: 2,885,294 km (0.035 R)
• M7: 3,369,542 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.2

Radius: 11.9

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.77 AU - 1.23 AU

Year: 646 Days

Day: 7.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,285,780 km

• M1: 147,952 km (0.087 R)
• M2: 592,557 km (0.047 R)
• M3: 973,284 km (0.035 R)
• M4: 1,816,866 km (0.097 R)
• M5: 2,535,534 km (0.065 R)
• M6: 3,075,433 km (0.116 R)
• M7: 3,498,346 km (0.082 R)
• M8: 4,402,665 km (0.1 R)
• M9: 5,137,191 km (0.045 R)
• M10: 5,577,757 km (0.083 R)
• M11: 6,210,556 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358.6

Radius: 9.5

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.15 AU - 1.19 AU

Year: 817 Days

Day: 9.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,285,780 km

• M1: 118,332 km (0.093 R)
• M2: 449,242 km (0.12 R)
• M3: 774,618 km (0.059 R)
• M4: 1,171,501 km (0.063 R)
• M5: 1,471,594 km (0.099 R)
• M6: 2,138,352 km (0.102 R)
• M7: 2,593,877 km (0.119 R)
• M8: 3,161,452 km (0.103 R)
• M9: 3,462,293 km (0.107 R)
• M10: 3,837,485 km (0.085 R)
• M11: 4,435,876 km (0.111 R)
• M12: 5,163,221 km (0.118 R)
• M13: 5,475,432 km (0.066 R)
• M14: 5,855,859 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222

Radius: 10.5

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.27 AU - 2.83 AU

Year: 2629 Days

Day: 11.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,285,780 km

• M1: 130,599 km (0.083 R)
• M2: 577,298 km (0.076 R)
• M3: 1,165,068 km (0.11 R)
• M4: 1,803,402 km (0.027 R)
• M5: 2,249,503 km (0.113 R)
• M6: 2,661,346 km (0.084 R)
• M7: 5,400,782 km (0.111 R)
• M8: 7,059,524 km (0.119 R)
• M9: 12,230,972 km (0.116 R)
• M10: 12,572,055 km (0.105 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 729.9

Radius: 3.1

Gravity: 75.95 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.76 AU - 7.54 AU

Year: 11073 Days

Day: 23.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 71.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 21,285,780 km

• M1: 38,596 km (0.064 R)
• M2: 164,558 km (0.102 R)
• M3: 278,102 km (0.093 R)
• M4: 386,411 km (0.11 R)
• M5: 558,898 km (0.057 R)
• M6: 709,393 km (0.066 R)
• M7: 827,575 km (0.056 R)
• M8: 1,369,120 km (0.031 R)
• M9: 1,706,463 km (0.074 R)
• M10: 1,819,409 km (0.111 R)
• M11: 2,245,314 km (0.09 R)
• M12: 4,559,893 km (0.101 R)
• M13: 5,101,886 km (0.035 R)
• M14: 5,579,552 km (0.085 R)
• M15: 6,086,240 km (0.07 R)
• M16: 7,400,906 km (0.047 R)
• M17: 9,735,381 km (0.025 R)
• M18: 11,179,598 km (0.112 R)
• M19: 19,097,515 km (0.116 R)
• M20: 19,258,033 km (0.047 R)
• M21: 20,829,110 km (0.12 R)
• M22: 21,951,842 km (0.091 R)
• M23: 22,662,581 km (0.069 R)
• M24: 23,942,840 km (0.072 R)
• M25: 25,464,101 km (0.089 R)
• M26: 25,854,252 km (0.038 R)
• M27: 30,851,718 km (0.117 R)
• M28: 32,765,225 km (0.116 R)
• M29: 33,575,597 km (0.092 R)
• M30: 34,875,901 km (0.077 R)
• M31: 39,236,230 km (0.044 R)
• M32: 45,072,941 km (0.052 R)
• M33: 47,091,315 km (0.088 R)
• M34: 48,420,193 km (0.057 R)
• M35: 52,242,120 km (0.081 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 933.7

Radius: 3.5

Gravity: 76.22 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 5.7 AU - 8.28 AU

Year: 11932 Days

Day: 24 Hours

Environment

Temp: -223 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 21,285,780 km

• M1: 50,115 km (0.112 R)
• M2: 197,170 km (0.089 R)
• M3: 369,208 km (0.075 R)
• M4: 799,301 km (0.097 R)
• M5: 999,613 km (0.102 R)
• M6: 1,355,058 km (0.064 R)
• M7: 1,500,616 km (0.088 R)
• M8: 1,964,818 km (0.106 R)
• M9: 2,229,906 km (0.12 R)
• M10: 2,739,137 km (0.085 R)
• M11: 2,996,894 km (0.05 R)
• M12: 3,244,927 km (0.069 R)
• M13: 3,697,760 km (0.051 R)
• M14: 5,098,295 km (0.089 R)
• M15: 5,343,935 km (0.095 R)
• M16: 5,560,852 km (0.109 R)
• M17: 5,821,152 km (0.036 R)
• M18: 6,128,576 km (0.086 R)
• M19: 7,738,099 km (0.095 R)
• M20: 8,156,824 km (0.089 R)
• M21: 8,395,881 km (0.11 R)
• M22: 10,479,780 km (0.035 R)
• M23: 13,405,615 km (0.098 R)
• M24: 14,560,062 km (0.065 R)
• M25: 15,779,135 km (0.103 R)
• M26: 16,300,334 km (0.116 R)
• M27: 18,500,021 km (0.09 R)
• M28: 24,058,330 km (0.103 R)
• M29: 24,947,689 km (0.076 R)
• M30: 30,863,537 km (0.104 R)
• M31: 31,443,677 km (0.087 R)
• M32: 37,124,956 km (0.095 R)
• M33: 42,590,065 km (0.085 R)
• M34: 43,743,764 km (0.114 R)
• M35: 45,215,059 km (0.085 R)
• M36: 50,303,930 km (0.101 R)
• M37: 52,738,037 km (0.114 R)
• M38: 57,489,714 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 20.9

Radius: 6.7

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 6.81 AU - 10.85 AU

Year: 16942 Days

Day: 19.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,285,780 km

• M1: 87,216 km (0.082 R)
• M2: 797,805 km (0.11 R)
• M3: 1,852,770 km (0.107 R)
• M4: 2,067,443 km (0.059 R)
• M5: 3,222,039 km (0.085 R)
• M6: 4,220,156 km (0.116 R)
• M7: 4,460,111 km (0.054 R)
• M8: 5,015,119 km (0.112 R)
• M9: 7,544,370 km (0.108 R)
• M10: 10,857,813 km (0.106 R)
• M11: 12,695,025 km (0.072 R)
• M12: 16,325,765 km (0.081 R)
• M13: 20,531,560 km (0.098 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 190 - 17,856 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit