🌌 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 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.53 AU - 0.57 AU

Year: 268 Days

Day: 32.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,941,008 km

• M1: 528,679 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752.3

Radius: 14.7

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.95 AU - 1.13 AU

Year: 696 Days

Day: 7 Hours

Environment

Temp: -152 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,941,008 km

• M1: 182,809 km (0.114 R)
• M2: 1,243,009 km (0.038 R)
• M3: 1,985,912 km (0.107 R)
• M4: 2,677,203 km (0.029 R)
• M5: 3,418,760 km (0.095 R)
• M6: 4,111,099 km (0.077 R)
• M7: 4,661,769 km (0.088 R)
• M8: 5,387,618 km (0.109 R)
• M9: 6,168,070 km (0.097 R)
• M10: 7,332,390 km (0.118 R)
• M11: 8,243,591 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.7

Radius: 8.3

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.31 AU - 3.63 AU

Year: 3358 Days

Day: 11.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 45,941,008 km

• M1: 106,065 km (0.094 R)
• M2: 373,695 km (0.062 R)
• M3: 678,127 km (0.102 R)
• M4: 1,070,971 km (0.098 R)
• M5: 1,358,797 km (0.099 R)
• M6: 2,336,270 km (0.078 R)
• M7: 2,957,400 km (0.087 R)
• M8: 3,441,798 km (0.09 R)
• M9: 4,059,039 km (0.111 R)
• M10: 6,723,975 km (0.117 R)
• M11: 8,568,816 km (0.04 R)
• M12: 12,081,973 km (0.113 R)
• M13: 12,911,343 km (0.056 R)
• M14: 14,537,622 km (0.062 R)
• M15: 15,576,579 km (0.113 R)
• M16: 17,526,139 km (0.071 R)
• M17: 19,105,593 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.5

Radius: 14

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.21 AU - 3.79 AU

Year: 4295 Days

Day: 15 Hours

Environment

Temp: -216 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,941,008 km

• M1: 174,132 km (0.12 R)
• M2: 1,032,076 km (0.054 R)
• M3: 1,482,964 km (0.109 R)
• M4: 2,265,959 km (0.091 R)
• M5: 2,777,135 km (0.117 R)
• M6: 3,329,749 km (0.086 R)
• M7: 3,935,322 km (0.109 R)
• M8: 4,681,217 km (0.08 R)
• M9: 5,989,001 km (0.108 R)
• M10: 6,513,042 km (0.111 R)
• M11: 7,067,901 km (0.115 R)
• M12: 7,654,025 km (0.037 R)
• M13: 9,244,700 km (0.064 R)
• M14: 10,804,108 km (0.092 R)
• M15: 11,837,530 km (0.099 R)
• M16: 13,862,487 km (0.114 R)
• M17: 14,783,262 km (0.095 R)
• M18: 15,284,115 km (0.068 R)
• M19: 17,568,325 km (0.116 R)
• M20: 20,316,139 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.4

Radius: 10.6

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.16 AU - 5.78 AU

Year: 7268 Days

Day: 13.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,941,008 km

• M1: 131,796 km (0.074 R)
• M2: 562,937 km (0.094 R)
• M3: 918,082 km (0.075 R)
• M4: 1,592,918 km (0.116 R)
• M5: 2,488,112 km (0.099 R)
• M6: 2,952,164 km (0.106 R)
• M7: 3,389,439 km (0.073 R)
• M8: 3,801,731 km (0.092 R)
• M9: 4,198,763 km (0.1 R)
• M10: 4,780,101 km (0.082 R)
• M11: 5,888,023 km (0.119 R)
• M12: 6,293,134 km (0.098 R)
• M13: 7,767,570 km (0.072 R)
• M14: 8,255,558 km (0.116 R)
• M15: 8,884,318 km (0.057 R)
• M16: 10,596,017 km (0.084 R)
• M17: 12,619,328 km (0.053 R)
• M18: 13,400,678 km (0.035 R)
• M19: 13,776,169 km (0.044 R)
• M20: 19,869,140 km (0.107 R)
• M21: 21,432,139 km (0.118 R)
• M22: 22,999,177 km (0.099 R)
• M23: 27,635,963 km (0.099 R)
• M24: 27,983,030 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 376

Radius: 5.8

Gravity: 11.18 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 5.79 AU - 6.73 AU

Year: 10275 Days

Day: 17.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 45,941,008 km

• M1: 72,106 km (0.1 R)
• M2: 354,397 km (0.1 R)
• M3: 589,864 km (0.107 R)
• M4: 985,850 km (0.106 R)
• M5: 1,428,809 km (0.084 R)
• M6: 1,695,991 km (0.118 R)
• M7: 2,682,888 km (0.097 R)
• M8: 3,540,084 km (0.064 R)
• M9: 4,266,681 km (0.102 R)
• M10: 4,594,899 km (0.095 R)
• M11: 4,851,908 km (0.103 R)
• M12: 6,928,326 km (0.074 R)
• M13: 7,734,958 km (0.108 R)
• M14: 8,140,368 km (0.075 R)
• M15: 9,857,602 km (0.068 R)
• M16: 10,627,283 km (0.066 R)
• M17: 10,875,915 km (0.081 R)
• M18: 12,614,691 km (0.047 R)
• M19: 14,228,852 km (0.106 R)
• M20: 17,790,927 km (0.054 R)
• M21: 20,039,682 km (0.094 R)
• M22: 20,266,772 km (0.092 R)
• M23: 22,880,546 km (0.063 R)
• M24: 25,710,788 km (0.092 R)
• M25: 26,068,925 km (0.104 R)
• M26: 26,978,779 km (0.112 R)
• M27: 29,541,241 km (0.111 R)
• M28: 31,032,732 km (0.105 R)
• M29: 37,386,752 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 315.5

Radius: 6.1

Gravity: 8.48 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 6.4 AU - 8.86 AU

Year: 13826 Days

Day: 24.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 45,941,008 km

• M1: 75,846 km (0.079 R)
• M2: 285,732 km (0.052 R)
• M3: 678,726 km (0.095 R)
• M4: 1,621,491 km (0.106 R)
• M5: 1,926,671 km (0.101 R)
• M6: 3,077,827 km (0.097 R)
• M7: 3,982,894 km (0.087 R)
• M8: 4,540,146 km (0.085 R)
• M9: 6,599,510 km (0.081 R)
• M10: 7,874,383 km (0.077 R)
• M11: 8,087,410 km (0.044 R)
• M12: 8,932,489 km (0.091 R)
• M13: 9,447,854 km (0.099 R)
• M14: 9,933,299 km (0.093 R)
• M15: 11,599,071 km (0.091 R)
• M16: 11,819,578 km (0.046 R)
• M17: 13,382,128 km (0.055 R)
• M18: 13,994,282 km (0.106 R)
• M19: 15,606,199 km (0.116 R)
• M20: 16,770,520 km (0.1 R)
• M21: 17,918,235 km (0.113 R)
• M22: 18,213,092 km (0.078 R)
• M23: 23,034,332 km (0.115 R)
• M24: 23,735,348 km (0.085 R)
• M25: 25,829,868 km (0.051 R)
• M26: 27,748,610 km (0.1 R)
• M27: 29,248,628 km (0.103 R)
• M28: 31,438,292 km (0.049 R)
• M29: 31,652,366 km (0.092 R)
• M30: 36,023,915 km (0.104 R)
• M31: 37,326,015 km (0.09 R)
• M32: 38,904,871 km (0.089 R)
• M33: 43,907,873 km (0.111 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 542 - 18,612 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit