🌌 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: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.8

Radius: 14.1

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.6 AU - 0.78 AU

Year: 396 Days

Day: 7.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 86,613,100 km

• M1: 175,478 km (0.112 R)
• M2: 699,520 km (0.098 R)
• M3: 1,189,602 km (0.116 R)
• M4: 1,917,097 km (0.098 R)
• M5: 2,375,315 km (0.054 R)
• M6: 2,865,398 km (0.081 R)
• M7: 3,641,811 km (0.114 R)
• M8: 5,384,626 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.2

Radius: 9.8

Gravity: 9.39 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.67 AU - 0.79 AU

Year: 431 Days

Day: 10.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 86,613,100 km

• M1: 121,922 km (0.1 R)
• M2: 480,359 km (0.065 R)
• M3: 918,232 km (0.096 R)
• M4: 1,383,032 km (0.049 R)
• M5: 1,743,264 km (0.083 R)
• M6: 2,303,209 km (0.119 R)
• M7: 2,750,806 km (0.081 R)
• M8: 3,220,244 km (0.11 R)
• M9: 3,626,103 km (0.074 R)
• M10: 3,969,579 km (0.083 R)
• M11: 4,646,360 km (0.074 R)
• M12: 5,281,254 km (0.033 R)
• M13: 5,954,893 km (0.117 R)
• M14: 6,416,103 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.4

Radius: 12.6

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.72 AU - 0.9 AU

Year: 503 Days

Day: 8.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 86,613,100 km

• M1: 157,078 km (0.115 R)
• M2: 574,905 km (0.099 R)
• M3: 1,069,475 km (0.106 R)
• M4: 2,861,209 km (0.085 R)
• M5: 3,476,655 km (0.116 R)
• M6: 4,312,607 km (0.116 R)
• M7: 5,007,340 km (0.117 R)
• M8: 5,702,671 km (0.111 R)
• M9: 6,481,178 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.4

Radius: 12.2

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.5 AU - 1.84 AU

Year: 1490 Days

Day: 8.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 86,613,100 km

• M1: 151,692 km (0.032 R)
• M2: 707,000 km (0.095 R)
• M3: 1,390,961 km (0.082 R)
• M4: 1,876,705 km (0.074 R)
• M5: 2,381,149 km (0.079 R)
• M6: 3,337,828 km (0.111 R)
• M7: 3,819,982 km (0.105 R)
• M8: 4,222,250 km (0.075 R)
• M9: 5,354,108 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.4

Radius: 12.2

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.78 AU - 2.2 AU

Year: 1938 Days

Day: 5.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 86,613,100 km

• M1: 156,479 km (0.09 R)
• M2: 546,331 km (0.114 R)
• M3: 1,629,121 km (0.096 R)
• M4: 2,141,344 km (0.098 R)
• M5: 2,760,081 km (0.093 R)
• M6: 3,910,040 km (0.115 R)
• M7: 4,948,398 km (0.102 R)
• M8: 7,863,911 km (0.116 R)
• M9: 9,930,606 km (0.051 R)
• M10: 11,692,121 km (0.116 R)
• M11: 13,963,316 km (0.094 R)
• M12: 14,368,576 km (0.112 R)
• M13: 15,922,449 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.3

Radius: 9.1

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.78 AU - 3.98 AU

Year: 5275 Days

Day: 7.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 86,613,100 km

• M1: 116,088 km (0.098 R)
• M2: 610,210 km (0.078 R)
• M3: 998,566 km (0.069 R)
• M4: 1,744,012 km (0.101 R)
• M5: 3,356,228 km (0.068 R)
• M6: 5,213,785 km (0.109 R)
• M7: 5,848,080 km (0.042 R)
• M8: 6,487,162 km (0.063 R)
• M9: 7,570,251 km (0.117 R)
• M10: 8,657,977 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 506.5

Radius: 5

Gravity: 20.26 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 7.45 AU - 8.61 AU

Year: 15707 Days

Day: 23.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 86,613,100 km

• M1: 62,831 km (0.084 R)
• M2: 288,574 km (0.115 R)
• M3: 537,206 km (0.113 R)
• M4: 1,890,767 km (0.061 R)
• M5: 2,183,830 km (0.107 R)
• M6: 3,919,913 km (0.086 R)
• M7: 5,217,675 km (0.107 R)
• M8: 5,464,810 km (0.058 R)
• M9: 6,097,609 km (0.036 R)
• M10: 8,336,042 km (0.099 R)
• M11: 8,625,065 km (0.09 R)
• M12: 8,920,970 km (0.102 R)
• M13: 10,009,893 km (0.111 R)
• M14: 12,762,494 km (0.112 R)
• M15: 14,621,546 km (0.088 R)
• M16: 15,615,475 km (0.109 R)
• M17: 16,578,137 km (0.076 R)
• M18: 17,112,500 km (0.043 R)
• M19: 23,009,050 km (0.1 R)
• M20: 23,962,437 km (0.117 R)
• M21: 28,688,832 km (0.054 R)
• M22: 29,017,050 km (0.115 R)
• M23: 35,991,453 km (0.095 R)
• M24: 47,425,218 km (0.06 R)
• M25: 48,966,225 km (0.088 R)
• M26: 50,064,423 km (0.044 R)
• M27: 50,858,938 km (0.119 R)
• M28: 52,473,248 km (0.105 R)
• M29: 52,636,460 km (0.118 R)
• M30: 57,346,997 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 816

Radius: 6.3

Gravity: 20.56 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 8.3 AU - 11.96 AU

Year: 22255 Days

Day: 24.4 Hours

Environment

Temp: -241 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 86,613,100 km

• M1: 78,389 km (0.071 R)
• M2: 370,404 km (0.115 R)
• M3: 1,037,910 km (0.061 R)
• M4: 2,582,209 km (0.104 R)
• M5: 3,131,981 km (0.058 R)
• M6: 5,172,047 km (0.095 R)
• M7: 7,201,342 km (0.107 R)
• M8: 9,411,202 km (0.105 R)
• M9: 10,384,187 km (0.073 R)
• M10: 10,830,437 km (0.115 R)
• M11: 12,105,908 km (0.093 R)
• M12: 14,475,539 km (0.069 R)
• M13: 14,791,938 km (0.119 R)
• M14: 16,188,434 km (0.09 R)
• M15: 18,676,546 km (0.089 R)
• M16: 19,336,273 km (0.112 R)
• M17: 21,613,302 km (0.067 R)
• M18: 22,869,475 km (0.108 R)
• M19: 23,083,400 km (0.076 R)
• M20: 23,298,821 km (0.068 R)
• M21: 24,843,868 km (0.117 R)
• M22: 26,221,515 km (0.088 R)
• M23: 26,810,332 km (0.109 R)
• M24: 33,465,941 km (0.093 R)
• M25: 37,172,378 km (0.062 R)
• M26: 41,938,417 km (0.086 R)
• M27: 44,218,139 km (0.057 R)
• M28: 46,066,420 km (0.109 R)
• M29: 47,442,571 km (0.118 R)
• M30: 48,316,372 km (0.062 R)
• M31: 50,457,417 km (0.081 R)
• M32: 62,116,626 km (0.109 R)
• M33: 64,007,095 km (0.049 R)
• M34: 66,152,178 km (0.059 R)
• M35: 67,902,324 km (0.106 R)
• M36: 75,448,789 km (0.046 R)
• M37: 77,841,307 km (0.088 R)
• M38: 79,791,315 km (0.117 R)
• M39: 82,023,765 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: 155 - 11,875 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit