🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.2

Radius: 12.8

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.58 AU - 0.82 AU

Year: 372 Days

Day: 9.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 79,848,895 km

• M1: 159,172 km (0.059 R)
• M2: 629,209 km (0.041 R)
• M3: 1,321,996 km (0.082 R)
• M4: 1,941,631 km (0.098 R)
• M5: 2,713,705 km (0.052 R)
• M6: 4,155,230 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.3

Radius: 11.4

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.63 AU - 0.79 AU

Year: 380 Days

Day: 5.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 79,848,895 km

• M1: 141,819 km (0.035 R)
• M2: 521,947 km (0.064 R)
• M3: 997,070 km (0.085 R)
• M4: 1,896,901 km (0.026 R)
• M5: 2,459,987 km (0.054 R)
• M6: 3,052,993 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.4

Radius: 14.2

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.25 AU - 2.41 AU

Year: 2261 Days

Day: 8 Hours

Environment

Temp: -202 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 79,848,895 km

• M1: 176,525 km (0.098 R)
• M2: 688,001 km (0.062 R)
• M3: 1,449,753 km (0.096 R)
• M4: 2,018,823 km (0.117 R)
• M5: 2,706,824 km (0.111 R)
• M6: 4,030,615 km (0.09 R)
• M7: 4,494,369 km (0.093 R)
• M8: 6,157,000 km (0.105 R)
• M9: 7,404,945 km (0.084 R)
• M10: 7,856,731 km (0.11 R)
• M11: 12,540,341 km (0.092 R)
• M12: 13,227,743 km (0.075 R)
• M13: 14,214,042 km (0.101 R)
• M14: 15,345,301 km (0.104 R)
• M15: 16,082,369 km (0.097 R)
• M16: 17,894,149 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483

Radius: 11.3

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.91 AU - 3.07 AU

Year: 2498 Days

Day: 5.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 79,848,895 km

• M1: 140,921 km (0.039 R)
• M2: 566,976 km (0.108 R)
• M3: 1,493,585 km (0.039 R)
• M4: 2,541,369 km (0.047 R)
• M5: 4,179,017 km (0.034 R)
• M6: 4,685,854 km (0.091 R)
• M7: 5,629,667 km (0.074 R)
• M8: 6,046,148 km (0.115 R)
• M9: 7,536,741 km (0.027 R)
• M10: 8,320,933 km (0.028 R)
• M11: 10,927,077 km (0.06 R)
• M12: 12,954,727 km (0.101 R)
• M13: 14,079,703 km (0.071 R)
• M14: 14,438,588 km (0.093 R)
• M15: 14,803,607 km (0.102 R)
• M16: 16,130,091 km (0.053 R)
• M17: 16,722,349 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.5

Radius: 11.2

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.4 AU - 2.88 AU

Year: 2727 Days

Day: 7.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 79,848,895 km

• M1: 145,110 km (0.118 R)
• M2: 720,164 km (0.118 R)
• M3: 1,148,014 km (0.093 R)
• M4: 1,712,447 km (0.062 R)
• M5: 2,173,059 km (0.102 R)
• M6: 3,991,122 km (0.042 R)
• M7: 4,354,046 km (0.098 R)
• M8: 5,097,697 km (0.071 R)
• M9: 5,604,086 km (0.115 R)
• M10: 6,005,756 km (0.091 R)
• M11: 7,202,988 km (0.06 R)
• M12: 7,743,635 km (0.073 R)
• M13: 9,605,081 km (0.111 R)
• M14: 10,459,135 km (0.085 R)
• M15: 12,861,827 km (0.089 R)
• M16: 13,468,296 km (0.059 R)
• M17: 15,042,515 km (0.088 R)
• M18: 15,611,136 km (0.078 R)
• M19: 17,122,972 km (0.096 R)
• M20: 17,629,062 km (0.106 R)
• M21: 18,553,577 km (0.079 R)
• M22: 19,087,492 km (0.06 R)
• M23: 20,000,338 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.3

Radius: 10.1

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 4.47 AU - 4.89 AU

Year: 6437 Days

Day: 8.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 79,848,895 km

• M1: 125,812 km (0.108 R)
• M2: 528,828 km (0.113 R)
• M3: 1,137,393 km (0.047 R)
• M4: 2,028,846 km (0.053 R)
• M5: 2,599,413 km (0.077 R)
• M6: 4,173,781 km (0.057 R)
• M7: 5,472,739 km (0.036 R)
• M8: 7,795,246 km (0.09 R)
• M9: 10,283,507 km (0.08 R)
• M10: 11,961,098 km (0.087 R)
• M11: 13,308,825 km (0.119 R)
• M12: 14,701,731 km (0.081 R)
• M13: 19,014,937 km (0.065 R)
• M14: 20,113,135 km (0.103 R)
• M15: 21,321,437 km (0.09 R)
• M16: 22,223,661 km (0.093 R)
• M17: 23,734,749 km (0.072 R)
• M18: 25,390,199 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 151.2

Radius: 7.8

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 5.99 AU - 7.05 AU

Year: 10585 Days

Day: 22.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 79,848,895 km

• M1: 96,939 km (0.06 R)
• M2: 399,277 km (0.118 R)
• M3: 674,238 km (0.088 R)
• M4: 1,531,583 km (0.093 R)
• M5: 2,256,085 km (0.095 R)
• M6: 2,565,603 km (0.094 R)
• M7: 2,811,692 km (0.099 R)
• M8: 3,372,385 km (0.082 R)
• M9: 4,689,444 km (0.098 R)
• M10: 5,420,529 km (0.07 R)
• M11: 7,922,105 km (0.109 R)
• M12: 8,219,655 km (0.088 R)
• M13: 9,157,634 km (0.107 R)
• M14: 14,165,572 km (0.118 R)
• M15: 15,109,385 km (0.113 R)
• M16: 16,153,728 km (0.072 R)
• M17: 18,580,205 km (0.113 R)
• M18: 20,604,713 km (0.09 R)
• M19: 21,742,405 km (0.05 R)
• M20: 22,106,377 km (0.061 R)
• M21: 26,054,713 km (0.076 R)
• M22: 27,299,816 km (0.096 R)
• M23: 27,808,748 km (0.116 R)
• M24: 28,237,795 km (0.09 R)
• M25: 28,584,114 km (0.086 R)
• M26: 28,933,275 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 571.2

Radius: 3.2

Gravity: 55.78 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 10.65 AU - 11.57 AU

Year: 23545 Days

Day: 22.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 79,848,895 km

• M1: 39,793 km (0.114 R)
• M2: 215,122 km (0.081 R)
• M3: 578,645 km (0.089 R)
• M4: 687,851 km (0.088 R)
• M5: 1,442,572 km (0.095 R)
• M6: 4,282,239 km (0.11 R)
• M7: 4,995,821 km (0.1 R)
• M8: 10,688,917 km (0.095 R)
• M9: 10,940,990 km (0.094 R)
• M10: 11,391,579 km (0.037 R)
• M11: 12,398,522 km (0.098 R)
• M12: 12,676,774 km (0.109 R)
• M13: 12,959,215 km (0.084 R)
• M14: 14,434,399 km (0.092 R)
• M15: 16,682,257 km (0.083 R)
• M16: 24,259,090 km (0.043 R)
• M17: 30,453,339 km (0.085 R)
• M18: 31,086,886 km (0.073 R)
• M19: 31,471,203 km (0.096 R)
• M20: 33,574,699 km (0.095 R)
• M21: 33,979,361 km (0.071 R)
• M22: 39,688,465 km (0.116 R)
• M23: 39,989,605 km (0.06 R)
• M24: 43,085,084 km (0.039 R)
• M25: 47,174,193 km (0.117 R)
• M26: 51,514,476 km (0.109 R)
• M27: 54,057,490 km (0.12 R)
• M28: 65,275,834 km (0.097 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 470 - 10,925 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit