🌌 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: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.41 AU - 0.61 AU

Year: 235 Days

Day: 31.8 Hours

Environment

Temp: -116 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.49 AU - 0.75 AU

Year: 315 Days

Day: 15.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.9

Radius: 13.4

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.74 AU - 0.76 AU

Year: 419 Days

Day: 10.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 78,263,323 km

• M1: 166,652 km (0.109 R)
• M2: 640,728 km (0.087 R)
• M3: 1,096,253 km (0.088 R)
• M4: 1,581,698 km (0.082 R)
• M5: 2,268,353 km (0.111 R)
• M6: 3,168,184 km (0.111 R)
• M7: 4,069,062 km (0.097 R)
• M8: 4,513,966 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.3

Radius: 11.8

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.6 AU - 0.94 AU

Year: 436 Days

Day: 14.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 78,263,323 km

• M1: 146,756 km (0.025 R)
• M2: 773,870 km (0.111 R)
• M3: 1,835,865 km (0.108 R)
• M4: 2,429,769 km (0.077 R)
• M5: 2,932,866 km (0.104 R)
• M6: 4,231,525 km (0.069 R)
• M7: 4,784,589 km (0.077 R)
• M8: 5,321,645 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96

Radius: 15

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 4.14 AU - 5.94 AU

Year: 7306 Days

Day: 8 Hours

Environment

Temp: -221 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 78,263,323 km

• M1: 194,328 km (0.065 R)
• M2: 842,236 km (0.101 R)
• M3: 2,809,747 km (0.109 R)
• M4: 3,533,801 km (0.119 R)
• M5: 4,508,581 km (0.084 R)
• M6: 7,138,511 km (0.119 R)
• M7: 8,294,903 km (0.102 R)
• M8: 9,074,756 km (0.08 R)
• M9: 11,340,715 km (0.031 R)
• M10: 17,779,258 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.3

Radius: 8.5

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 5.54 AU - 5.66 AU

Year: 8557 Days

Day: 6.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 78,263,323 km

• M1: 105,766 km (0.029 R)
• M2: 561,441 km (0.092 R)
• M3: 913,145 km (0.083 R)
• M4: 1,296,565 km (0.099 R)
• M5: 1,637,648 km (0.111 R)
• M6: 1,915,601 km (0.035 R)
• M7: 2,330,585 km (0.118 R)
• M8: 3,501,787 km (0.083 R)
• M9: 4,356,290 km (0.117 R)
• M10: 5,425,167 km (0.086 R)
• M11: 6,349,981 km (0.076 R)
• M12: 6,850,236 km (0.114 R)
• M13: 7,443,990 km (0.114 R)
• M14: 8,962,857 km (0.078 R)
• M15: 9,353,008 km (0.092 R)
• M16: 10,808,446 km (0.084 R)
• M17: 14,266,700 km (0.116 R)
• M18: 15,566,406 km (0.103 R)
• M19: 16,302,428 km (0.082 R)
• M20: 22,048,632 km (0.045 R)
• M21: 24,682,003 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 794

Radius: 4.3

Gravity: 42.94 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 8.55 AU - 10.31 AU

Year: 18697 Days

Day: 22.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 78,263,323 km

• M1: 53,706 km (0.077 R)
• M2: 209,886 km (0.113 R)
• M3: 384,167 km (0.076 R)
• M4: 877,691 km (0.105 R)
• M5: 1,057,208 km (0.073 R)
• M6: 1,766,003 km (0.106 R)
• M7: 2,674,960 km (0.073 R)
• M8: 3,557,288 km (0.108 R)
• M9: 3,736,506 km (0.12 R)
• M10: 4,759,905 km (0.036 R)
• M11: 5,164,118 km (0.098 R)
• M12: 6,210,107 km (0.094 R)
• M13: 6,470,258 km (0.118 R)
• M14: 10,183,426 km (0.093 R)
• M15: 13,108,364 km (0.118 R)
• M16: 13,536,363 km (0.108 R)
• M17: 15,341,860 km (0.079 R)
• M18: 16,139,366 km (0.082 R)
• M19: 17,386,863 km (0.118 R)
• M20: 17,558,003 km (0.112 R)
• M21: 18,077,855 km (0.091 R)
• M22: 19,057,572 km (0.117 R)
• M23: 19,422,441 km (0.074 R)
• M24: 22,208,253 km (0.069 R)
• M25: 23,959,296 km (0.061 R)
• M26: 25,249,278 km (0.065 R)
• M27: 28,675,518 km (0.064 R)
• M28: 30,005,593 km (0.102 R)
• M29: 32,269,906 km (0.048 R)
• M30: 32,788,263 km (0.093 R)
• M31: 39,741,871 km (0.116 R)
• M32: 48,795,534 km (0.047 R)
• M33: 49,136,019 km (0.097 R)
• M34: 50,166,898 km (0.052 R)
• M35: 52,628,232 km (0.119 R)
• M36: 55,723,561 km (0.102 R)
• M37: 67,827,675 km (0.098 R)
• M38: 75,961,311 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 524.7

Radius: 6.6

Gravity: 12.05 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 9.25 AU - 10.03 AU

Year: 19326 Days

Day: 19.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 78,263,323 km

• M1: 82,428 km (0.084 R)
• M2: 316,100 km (0.074 R)
• M3: 593,754 km (0.053 R)
• M4: 877,092 km (0.09 R)
• M5: 1,262,905 km (0.093 R)
• M6: 1,526,497 km (0.106 R)
• M7: 3,414,123 km (0.062 R)
• M8: 4,630,353 km (0.117 R)
• M9: 5,447,906 km (0.099 R)
• M10: 6,483,871 km (0.064 R)
• M11: 8,126,904 km (0.087 R)
• M12: 8,628,506 km (0.042 R)
• M13: 10,431,011 km (0.107 R)
• M14: 13,618,642 km (0.084 R)
• M15: 14,111,268 km (0.082 R)
• M16: 14,470,303 km (0.095 R)
• M17: 16,995,066 km (0.04 R)
• M18: 20,158,762 km (0.109 R)
• M19: 28,297,484 km (0.09 R)
• M20: 28,525,023 km (0.115 R)
• M21: 33,973,527 km (0.066 R)
• M22: 34,359,639 km (0.107 R)
• M23: 42,560,445 km (0.098 R)
• M24: 44,068,541 km (0.117 R)
• M25: 44,374,319 km (0.114 R)
• M26: 56,350,825 km (0.093 R)
• M27: 57,984,284 km (0.101 R)
• M28: 58,905,209 km (0.107 R)
• M29: 62,109,745 km (0.038 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 700.4

Radius: 7.9

Gravity: 11.22 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 9.69 AU - 10.45 AU

Year: 20633 Days

Day: 24.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 78,263,323 km

• M1: 149,747 km (0.103 R)
• M2: 475,572 km (0.081 R)
• M3: 864,227 km (0.118 R)
• M4: 1,138,739 km (0.085 R)
• M5: 1,569,431 km (0.105 R)
• M6: 2,064,451 km (0.1 R)
• M7: 2,932,866 km (0.078 R)
• M8: 3,392,431 km (0.091 R)
• M9: 4,253,367 km (0.03 R)
• M10: 4,878,985 km (0.101 R)
• M11: 5,252,381 km (0.051 R)
• M12: 5,564,742 km (0.061 R)
• M13: 6,802,215 km (0.09 R)
• M14: 7,316,383 km (0.105 R)
• M15: 8,317,642 km (0.073 R)
• M16: 10,045,796 km (0.088 R)
• M17: 11,088,942 km (0.118 R)
• M18: 12,000,741 km (0.09 R)
• M19: 14,803,607 km (0.116 R)
• M20: 15,113,723 km (0.099 R)
• M21: 15,507,465 km (0.082 R)
• M22: 18,280,112 km (0.1 R)
• M23: 18,547,443 km (0.108 R)
• M24: 20,588,706 km (0.073 R)
• M25: 21,366,765 km (0.053 R)
• M26: 32,811,002 km (0.091 R)
• M27: 36,623,952 km (0.094 R)
• M28: 42,568,373 km (0.031 R)
• M29: 45,768,272 km (0.042 R)
• M30: 46,426,951 km (0.102 R)
• M31: 49,125,098 km (0.112 R)
• M32: 52,642,444 km (0.105 R)
• M33: 57,461,290 km (0.066 R)
• M34: 59,977,526 km (0.105 R)
• M35: 62,566,168 km (0.116 R)
• M36: 75,026,175 km (0.119 R)
• M37: 77,329,084 km (0.099 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 173 - 17,427 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit