🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.6

Radius: 8

Gravity: 9.53 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.49 AU - 0.71 AU

Year: 327 Days

Day: 9.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,553,047 km

• M1: 99,483 km (0.052 R)
• M2: 377,286 km (0.102 R)
• M3: 704,157 km (0.093 R)
• M4: 1,013,376 km (0.106 R)
• M5: 1,360,293 km (0.088 R)
• M6: 1,621,192 km (0.115 R)
• M7: 1,871,619 km (0.099 R)
• M8: 2,532,542 km (0.063 R)
• M9: 3,012,602 km (0.103 R)
• M10: 3,598,128 km (0.09 R)
• M11: 4,016,553 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.3

Radius: 13

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.18 AU - 1.26 AU

Year: 947 Days

Day: 9.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,553,047 km

• M1: 179,069 km (0.104 R)
• M2: 610,060 km (0.107 R)
• M3: 1,188,854 km (0.084 R)
• M4: 2,126,833 km (0.025 R)
• M5: 2,618,262 km (0.099 R)
• M6: 3,174,766 km (0.089 R)
• M7: 3,871,144 km (0.113 R)
• M8: 4,810,320 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.1

Radius: 9.7

Gravity: 8.9 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.94 AU - 1.52 AU

Year: 959 Days

Day: 10.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,553,047 km

• M1: 120,725 km (0.064 R)
• M2: 740,659 km (0.105 R)
• M3: 1,361,939 km (0.06 R)
• M4: 1,925,624 km (0.112 R)
• M5: 3,761,638 km (0.057 R)
• M6: 4,404,760 km (0.072 R)
• M7: 5,100,240 km (0.102 R)
• M8: 7,604,060 km (0.1 R)
• M9: 8,015,005 km (0.099 R)
• M10: 9,868,972 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.4

Radius: 13.6

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.48 AU - 1.78 AU

Year: 1463 Days

Day: 11.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,553,047 km

• M1: 169,195 km (0.093 R)
• M2: 883,675 km (0.062 R)
• M3: 1,526,497 km (0.104 R)
• M4: 2,100,504 km (0.079 R)
• M5: 3,104,904 km (0.098 R)
• M6: 3,845,264 km (0.077 R)
• M7: 4,351,652 km (0.084 R)
• M8: 5,068,376 km (0.061 R)
• M9: 6,363,145 km (0.117 R)
• M10: 6,944,333 km (0.114 R)
• M11: 8,598,736 km (0.117 R)
• M12: 11,461,890 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.4

Radius: 13.5

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 2.93 AU - 3.49 AU

Year: 4043 Days

Day: 10.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,553,047 km

• M1: 167,849 km (0.081 R)
• M2: 719,566 km (0.083 R)
• M3: 1,471,893 km (0.107 R)
• M4: 3,002,429 km (0.076 R)
• M5: 4,300,340 km (0.053 R)
• M6: 5,662,579 km (0.12 R)
• M7: 6,565,402 km (0.097 R)
• M8: 7,427,983 km (0.077 R)
• M9: 8,843,179 km (0.057 R)
• M10: 10,389,572 km (0.08 R)
• M11: 10,899,850 km (0.106 R)
• M12: 11,382,304 km (0.078 R)
• M13: 12,722,850 km (0.091 R)
• M14: 13,556,409 km (0.036 R)
• M15: 14,166,470 km (0.052 R)
• M16: 14,688,716 km (0.117 R)
• M17: 15,606,050 km (0.115 R)
• M18: 16,965,895 km (0.106 R)
• M19: 18,774,982 km (0.088 R)
• M20: 21,044,381 km (0.102 R)
• M21: 22,140,485 km (0.094 R)
• M22: 25,047,321 km (0.052 R)
• M23: 25,734,723 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.7

Radius: 10.7

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 3.26 AU - 4.5 AU

Year: 5372 Days

Day: 6.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,553,047 km

• M1: 133,142 km (0.117 R)
• M2: 575,503 km (0.111 R)
• M3: 988,244 km (0.059 R)
• M4: 1,329,177 km (0.118 R)
• M5: 1,717,384 km (0.113 R)
• M6: 2,327,294 km (0.068 R)
• M7: 3,296,090 km (0.114 R)
• M8: 3,862,767 km (0.093 R)
• M9: 4,241,399 km (0.098 R)
• M10: 5,431,300 km (0.118 R)
• M11: 5,959,830 km (0.038 R)
• M12: 6,605,793 km (0.115 R)
• M13: 9,204,308 km (0.118 R)
• M14: 10,254,186 km (0.083 R)
• M15: 11,023,568 km (0.059 R)
• M16: 12,164,850 km (0.118 R)
• M17: 13,338,146 km (0.111 R)
• M18: 15,657,960 km (0.105 R)
• M19: 16,939,715 km (0.115 R)
• M20: 18,906,628 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.2

Radius: 8.1

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.7 AU - 5.84 AU

Year: 7323 Days

Day: 11.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 51,553,047 km

• M1: 100,829 km (0.076 R)
• M2: 392,994 km (0.09 R)
• M3: 725,998 km (0.088 R)
• M4: 1,204,263 km (0.089 R)
• M5: 1,502,860 km (0.108 R)
• M6: 1,998,628 km (0.086 R)
• M7: 2,318,767 km (0.107 R)
• M8: 2,805,259 km (0.045 R)
• M9: 3,672,777 km (0.061 R)
• M10: 4,735,670 km (0.102 R)
• M11: 7,379,813 km (0.117 R)
• M12: 8,844,974 km (0.037 R)
• M13: 10,075,566 km (0.098 R)
• M14: 10,828,193 km (0.037 R)
• M15: 11,218,195 km (0.081 R)
• M16: 11,567,207 km (0.082 R)
• M17: 13,815,214 km (0.078 R)
• M18: 14,390,567 km (0.083 R)
• M19: 17,576,403 km (0.095 R)
• M20: 19,511,302 km (0.083 R)
• M21: 19,871,235 km (0.114 R)
• M22: 22,515,676 km (0.109 R)
• M23: 23,071,432 km (0.116 R)
• M24: 24,625,904 km (0.119 R)
• M25: 25,046,424 km (0.101 R)
• M26: 30,087,872 km (0.116 R)
• M27: 32,946,537 km (0.092 R)
• M28: 34,076,749 km (0.086 R)
• M29: 34,704,013 km (0.106 R)
• M30: 35,552,233 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 502.4

Radius: 5.5

Gravity: 16.61 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 5.96 AU - 6.24 AU

Year: 10590 Days

Day: 17.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 51,553,047 km

• M1: 68,366 km (0.119 R)
• M2: 273,465 km (0.041 R)
• M3: 449,093 km (0.097 R)
• M4: 628,311 km (0.087 R)
• M5: 803,191 km (0.111 R)
• M6: 1,084,734 km (0.111 R)
• M7: 1,510,490 km (0.117 R)
• M8: 1,958,236 km (0.036 R)
• M9: 2,143,139 km (0.1 R)
• M10: 5,409,010 km (0.071 R)
• M11: 5,606,779 km (0.083 R)
• M12: 6,446,771 km (0.069 R)
• M13: 7,208,224 km (0.119 R)
• M14: 9,184,860 km (0.101 R)
• M15: 12,213,619 km (0.09 R)
• M16: 12,727,488 km (0.059 R)
• M17: 13,196,327 km (0.084 R)
• M18: 15,581,665 km (0.092 R)
• M19: 16,945,699 km (0.087 R)
• M20: 17,656,737 km (0.084 R)
• M21: 23,811,643 km (0.039 R)
• M22: 24,433,222 km (0.102 R)
• M23: 25,801,743 km (0.075 R)
• M24: 27,413,511 km (0.06 R)
• M25: 30,212,786 km (0.098 R)
• M26: 30,523,501 km (0.095 R)
• M27: 31,468,510 km (0.062 R)
• M28: 33,638,428 km (0.111 R)
• M29: 35,215,189 km (0.103 R)
• M30: 36,021,821 km (0.115 R)
• M31: 38,031,967 km (0.095 R)
• M32: 40,742,681 km (0.042 R)
• M33: 41,503,685 km (0.093 R)
• M34: 41,759,498 km (0.091 R)
• M35: 42,145,011 km (0.099 R)
• M36: 42,793,069 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 741.5

Radius: 3.2

Gravity: 72.41 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 5.79 AU - 6.51 AU

Year: 10721 Days

Day: 21.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 51,553,047 km

• M1: 39,793 km (0.069 R)
• M2: 371,302 km (0.083 R)
• M3: 544,686 km (0.1 R)
• M4: 998,416 km (0.119 R)
• M5: 1,711,998 km (0.039 R)
• M6: 2,136,706 km (0.11 R)
• M7: 2,325,050 km (0.057 R)
• M8: 2,524,165 km (0.116 R)
• M9: 3,311,947 km (0.099 R)
• M10: 3,695,067 km (0.086 R)
• M11: 3,966,438 km (0.111 R)
• M12: 6,174,802 km (0.117 R)
• M13: 7,035,139 km (0.116 R)
• M14: 8,846,171 km (0.102 R)
• M15: 8,989,785 km (0.044 R)
• M16: 9,781,906 km (0.058 R)
• M17: 10,565,798 km (0.064 R)
• M18: 14,056,366 km (0.077 R)
• M19: 15,188,821 km (0.094 R)
• M20: 15,882,507 km (0.113 R)
• M21: 17,258,358 km (0.068 R)
• M22: 19,670,325 km (0.066 R)
• M23: 20,410,535 km (0.065 R)
• M24: 23,557,326 km (0.116 R)
• M25: 26,812,127 km (0.111 R)
• M26: 28,860,272 km (0.098 R)
• M27: 30,571,970 km (0.1 R)
• M28: 31,010,143 km (0.089 R)
• M29: 37,094,438 km (0.078 R)
• M30: 38,475,974 km (0.114 R)
• M31: 40,546,259 km (0.101 R)
• M32: 41,075,087 km (0.028 R)
• M33: 45,048,108 km (0.036 R)
• M34: 46,187,445 km (0.093 R)
• M35: 49,570,002 km (0.06 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 161 - 13,812 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit