🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752.2

Radius: 8.4

Gravity: 10.66 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.46 AU - 0.66 AU

Year: 284 Days

Day: 14.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,535,922 km

• M1: 104,569 km (0.04 R)
• M2: 371,452 km (0.066 R)
• M3: 722,857 km (0.097 R)
• M4: 1,014,872 km (0.11 R)
• M5: 1,312,273 km (0.085 R)
• M6: 1,641,837 km (0.083 R)
• M7: 2,111,724 km (0.119 R)
• M8: 2,391,920 km (0.077 R)
• M9: 2,781,922 km (0.111 R)
• M10: 3,099,369 km (0.12 R)
• M11: 3,855,137 km (0.091 R)
• M12: 4,161,962 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.5

Radius: 14.9

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.53 AU - 0.83 AU

Year: 380 Days

Day: 11.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 58,535,922 km

• M1: 185,801 km (0.042 R)
• M2: 677,678 km (0.12 R)
• M3: 1,276,818 km (0.068 R)
• M4: 2,676,007 km (0.097 R)
• M5: 4,016,104 km (0.025 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.5

Radius: 9.5

Gravity: 7.65 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.24 AU - 1.74 AU

Year: 1234 Days

Day: 12.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,535,922 km

• M1: 118,482 km (0.048 R)
• M2: 452,683 km (0.072 R)
• M3: 967,001 km (0.062 R)
• M4: 1,303,745 km (0.076 R)
• M5: 1,824,496 km (0.093 R)
• M6: 2,359,906 km (0.115 R)
• M7: 2,847,595 km (0.062 R)
• M8: 3,180,301 km (0.11 R)
• M9: 4,093,746 km (0.089 R)
• M10: 4,630,353 km (0.113 R)
• M11: 4,935,234 km (0.075 R)
• M12: 5,253,578 km (0.095 R)
• M13: 5,564,592 km (0.067 R)
• M14: 7,207,476 km (0.086 R)
• M15: 8,291,612 km (0.109 R)
• M16: 9,602,837 km (0.051 R)
• M17: 11,081,013 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.5

Radius: 9.2

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.64 AU - 2.42 AU

Year: 1962 Days

Day: 12.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,535,922 km

• M1: 114,742 km (0.093 R)
• M2: 410,048 km (0.068 R)
• M3: 1,232,986 km (0.091 R)
• M4: 1,628,971 km (0.098 R)
• M5: 2,534,188 km (0.101 R)
• M6: 3,488,622 km (0.039 R)
• M7: 4,836,200 km (0.073 R)
• M8: 5,694,443 km (0.087 R)
• M9: 8,120,621 km (0.106 R)
• M10: 8,443,902 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.9

Radius: 10

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.9 AU - 2.36 AU

Year: 2108 Days

Day: 5.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,535,922 km

• M1: 127,607 km (0.119 R)
• M2: 440,715 km (0.083 R)
• M3: 977,323 km (0.051 R)
• M4: 1,598,304 km (0.099 R)
• M5: 3,289,358 km (0.103 R)
• M6: 4,528,627 km (0.071 R)
• M7: 6,479,233 km (0.096 R)
• M8: 10,090,376 km (0.114 R)
• M9: 11,555,837 km (0.111 R)
• M10: 12,734,968 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.9

Radius: 10

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 4.46 AU - 5 AU

Year: 6977 Days

Day: 8 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,535,922 km

• M1: 125,064 km (0.07 R)
• M2: 617,989 km (0.071 R)
• M3: 1,000,062 km (0.103 R)
• M4: 1,945,520 km (0.043 R)
• M5: 2,778,780 km (0.083 R)
• M6: 3,985,437 km (0.098 R)
• M7: 4,300,789 km (0.117 R)
• M8: 4,830,366 km (0.113 R)
• M9: 5,349,021 km (0.093 R)
• M10: 8,335,893 km (0.044 R)
• M11: 11,458,299 km (0.093 R)
• M12: 11,776,045 km (0.108 R)
• M13: 12,716,567 km (0.117 R)
• M14: 13,057,201 km (0.036 R)
• M15: 14,800,017 km (0.046 R)
• M16: 16,063,520 km (0.105 R)
• M17: 16,404,603 km (0.049 R)
• M18: 17,697,129 km (0.029 R)
• M19: 18,122,136 km (0.063 R)
• M20: 21,634,395 km (0.101 R)
• M21: 22,120,588 km (0.113 R)
• M22: 25,963,907 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 440.7

Radius: 5.5

Gravity: 14.57 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 5.25 AU - 6.91 AU

Year: 10168 Days

Day: 20.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 58,535,922 km

• M1: 68,516 km (0.057 R)
• M2: 583,282 km (0.065 R)
• M3: 802,593 km (0.034 R)
• M4: 995,275 km (0.035 R)
• M5: 1,185,114 km (0.04 R)
• M6: 1,515,726 km (0.092 R)
• M7: 1,695,841 km (0.116 R)
• M8: 2,133,266 km (0.102 R)
• M9: 2,721,933 km (0.062 R)
• M10: 3,097,424 km (0.097 R)
• M11: 3,275,146 km (0.082 R)
• M12: 3,578,531 km (0.108 R)
• M13: 4,983,105 km (0.054 R)
• M14: 5,908,368 km (0.076 R)
• M15: 6,609,832 km (0.085 R)
• M16: 7,326,257 km (0.079 R)
• M17: 8,560,888 km (0.111 R)
• M18: 10,218,283 km (0.09 R)
• M19: 11,225,824 km (0.066 R)
• M20: 11,593,536 km (0.076 R)
• M21: 14,091,970 km (0.096 R)
• M22: 15,856,178 km (0.102 R)
• M23: 16,252,462 km (0.113 R)
• M24: 20,900,019 km (0.053 R)
• M25: 22,849,280 km (0.112 R)
• M26: 26,824,693 km (0.088 R)
• M27: 28,439,154 km (0.045 R)
• M28: 31,860,307 km (0.052 R)
• M29: 32,280,079 km (0.061 R)
• M30: 32,809,805 km (0.1 R)
• M31: 35,546,100 km (0.098 R)
• M32: 36,224,676 km (0.109 R)
• M33: 36,681,847 km (0.085 R)
• M34: 36,911,928 km (0.062 R)
• M35: 40,971,117 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 513.4

Radius: 7.4

Gravity: 9.38 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 6.61 AU - 9.57 AU

Year: 15607 Days

Day: 23.8 Hours

Environment

Temp: -242 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 58,535,922 km

• M1: 96,341 km (0.116 R)
• M2: 345,272 km (0.091 R)
• M3: 767,138 km (0.114 R)
• M4: 1,039,256 km (0.083 R)
• M5: 3,030,703 km (0.107 R)
• M6: 3,920,212 km (0.088 R)
• M7: 5,785,249 km (0.101 R)
• M8: 9,770,387 km (0.059 R)
• M9: 11,982,939 km (0.114 R)
• M10: 12,474,817 km (0.078 R)
• M11: 19,558,276 km (0.047 R)
• M12: 20,326,611 km (0.109 R)
• M13: 23,033,135 km (0.118 R)
• M14: 23,316,324 km (0.088 R)
• M15: 23,889,733 km (0.099 R)
• M16: 31,176,047 km (0.091 R)
• M17: 37,947,594 km (0.108 R)
• M18: 49,295,790 km (0.046 R)
• M19: 52,002,165 km (0.026 R)
• M20: 53,309,351 km (0.116 R)
• M21: 56,330,480 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 323.4

Radius: 4.1

Gravity: 19.24 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 8.02 AU - 10.84 AU

Year: 19641 Days

Day: 20.8 Hours

Environment

Temp: -245 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 58,535,922 km

• M1: 58,343 km (0.086 R)
• M2: 299,645 km (0.075 R)
• M3: 471,383 km (0.095 R)
• M4: 1,189,453 km (0.107 R)
• M5: 1,362,537 km (0.113 R)
• M6: 2,601,806 km (0.085 R)
• M7: 4,231,077 km (0.111 R)
• M8: 4,766,188 km (0.048 R)
• M9: 5,416,041 km (0.066 R)
• M10: 5,596,456 km (0.095 R)
• M11: 8,039,539 km (0.117 R)
• M12: 9,518,464 km (0.08 R)
• M13: 9,941,526 km (0.028 R)
• M14: 14,057,114 km (0.105 R)
• M15: 15,671,723 km (0.109 R)
• M16: 15,817,731 km (0.067 R)
• M17: 17,250,280 km (0.109 R)
• M18: 19,431,417 km (0.118 R)
• M19: 19,854,480 km (0.107 R)
• M20: 22,709,256 km (0.101 R)
• M21: 23,558,822 km (0.116 R)
• M22: 27,169,516 km (0.06 R)
• M23: 31,945,129 km (0.094 R)
• M24: 33,250,820 km (0.113 R)
• M25: 35,715,145 km (0.098 R)
• M26: 38,166,456 km (0.059 R)
• M27: 52,770,948 km (0.101 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 364 - 10,467 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit