🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.1

Radius: 9.5

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.45 AU - 0.63 AU

Year: 265 Days

Day: 6.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 154 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,400,328 km

• M1: 126,709 km (0.09 R)
• M2: 452,085 km (0.1 R)
• M3: 771,177 km (0.101 R)
• M4: 1,422,676 km (0.071 R)
• M5: 1,807,441 km (0.114 R)
• M6: 2,289,745 km (0.068 R)
• M7: 2,628,435 km (0.068 R)
• M8: 3,000,784 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.6

Radius: 11.8

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.7 AU - 1.04 AU

Year: 541 Days

Day: 6.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,400,328 km

• M1: 155,432 km (0.1 R)
• M2: 597,793 km (0.081 R)
• M3: 1,159,383 km (0.063 R)
• M4: 1,939,088 km (0.091 R)
• M5: 2,709,367 km (0.09 R)
• M6: 3,113,730 km (0.084 R)
• M7: 3,685,194 km (0.066 R)
• M8: 4,209,684 km (0.094 R)
• M9: 4,783,542 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.7

Radius: 9.8

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.99 AU - 2.91 AU

Year: 2557 Days

Day: 9.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,400,328 km

• M1: 121,922 km (0.069 R)
• M2: 447,597 km (0.101 R)
• M3: 771,626 km (0.111 R)
• M4: 1,146,368 km (0.04 R)
• M5: 1,451,099 km (0.112 R)
• M6: 1,947,615 km (0.118 R)
• M7: 2,438,894 km (0.099 R)
• M8: 3,345,457 km (0.035 R)
• M9: 3,789,763 km (0.046 R)
• M10: 4,143,861 km (0.079 R)
• M11: 5,973,593 km (0.051 R)
• M12: 6,454,999 km (0.092 R)
• M13: 7,278,984 km (0.096 R)
• M14: 7,800,482 km (0.098 R)
• M15: 9,906,521 km (0.109 R)
• M16: 10,240,423 km (0.082 R)
• M17: 11,541,925 km (0.064 R)
• M18: 12,597,786 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.5

Radius: 9.1

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.27 AU - 2.71 AU

Year: 2620 Days

Day: 7.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,400,328 km

• M1: 113,096 km (0.08 R)
• M2: 526,136 km (0.113 R)
• M3: 842,086 km (0.12 R)
• M4: 1,136,944 km (0.04 R)
• M5: 2,631,277 km (0.097 R)
• M6: 3,798,888 km (0.1 R)
• M7: 4,208,786 km (0.074 R)
• M8: 5,304,591 km (0.051 R)
• M9: 5,717,481 km (0.108 R)
• M10: 6,047,494 km (0.098 R)
• M11: 6,552,836 km (0.111 R)
• M12: 7,172,919 km (0.053 R)
• M13: 11,225,226 km (0.071 R)
• M14: 12,959,514 km (0.106 R)
• M15: 13,264,993 km (0.071 R)
• M16: 13,935,790 km (0.117 R)
• M17: 14,302,753 km (0.109 R)
• M18: 15,056,128 km (0.049 R)
• M19: 17,054,905 km (0.072 R)
• M20: 18,172,102 km (0.057 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.4

Radius: 11.8

Gravity: 7.13 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.19 AU - 3.89 AU

Year: 4442 Days

Day: 9.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 71,400,328 km

• M1: 146,756 km (0.1 R)
• M2: 586,573 km (0.09 R)
• M3: 1,482,664 km (0.066 R)
• M4: 1,940,135 km (0.093 R)
• M5: 2,860,461 km (0.05 R)
• M6: 3,493,559 km (0.096 R)
• M7: 4,028,072 km (0.098 R)
• M8: 7,492,609 km (0.057 R)
• M9: 7,967,583 km (0.034 R)
• M10: 9,347,025 km (0.088 R)
• M11: 9,984,760 km (0.098 R)
• M12: 10,560,712 km (0.105 R)
• M13: 12,523,586 km (0.118 R)
• M14: 13,193,934 km (0.061 R)
• M15: 13,996,826 km (0.052 R)
• M16: 14,550,039 km (0.096 R)
• M17: 18,311,677 km (0.055 R)
• M18: 19,175,455 km (0.091 R)
• M19: 21,856,548 km (0.032 R)
• M20: 22,301,602 km (0.104 R)
• M21: 24,538,688 km (0.1 R)
• M22: 27,951,016 km (0.064 R)
• M23: 28,829,006 km (0.118 R)
• M24: 29,364,566 km (0.117 R)
• M25: 29,997,814 km (0.09 R)
• M26: 30,918,140 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.2

Radius: 13.7

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 3.89 AU - 5.43 AU

Year: 6708 Days

Day: 12.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 71,400,328 km

• M1: 170,392 km (0.102 R)
• M2: 762,052 km (0.088 R)
• M3: 1,344,586 km (0.057 R)
• M4: 2,099,157 km (0.087 R)
• M5: 2,600,759 km (0.119 R)
• M6: 3,083,063 km (0.041 R)
• M7: 4,380,076 km (0.096 R)
• M8: 5,439,528 km (0.116 R)
• M9: 6,562,859 km (0.113 R)
• M10: 7,286,613 km (0.111 R)
• M11: 8,024,729 km (0.065 R)
• M12: 8,610,554 km (0.116 R)
• M13: 9,351,363 km (0.114 R)
• M14: 11,102,107 km (0.059 R)
• M15: 12,539,294 km (0.105 R)
• M16: 15,780,481 km (0.081 R)
• M17: 16,827,666 km (0.067 R)
• M18: 18,317,661 km (0.089 R)
• M19: 19,683,190 km (0.076 R)
• M20: 21,336,396 km (0.085 R)
• M21: 22,539,911 km (0.101 R)
• M22: 23,314,679 km (0.108 R)
• M23: 32,458,998 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 573.3

Radius: 5.5

Gravity: 18.95 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 7 AU - 7.06 AU

Year: 12430 Days

Day: 17.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 71,400,328 km

• M1: 68,965 km (0.042 R)
• M2: 398,678 km (0.101 R)
• M3: 662,419 km (0.114 R)
• M4: 912,996 km (0.116 R)
• M5: 1,504,805 km (0.089 R)
• M6: 1,842,148 km (0.092 R)
• M7: 2,840,714 km (0.116 R)
• M8: 3,406,044 km (0.108 R)
• M9: 3,662,754 km (0.041 R)
• M10: 3,987,681 km (0.06 R)
• M11: 5,177,882 km (0.089 R)
• M12: 5,379,988 km (0.091 R)
• M13: 6,203,973 km (0.092 R)
• M14: 6,393,813 km (0.093 R)
• M15: 6,865,046 km (0.09 R)
• M16: 8,326,169 km (0.111 R)
• M17: 9,032,271 km (0.072 R)
• M18: 11,109,437 km (0.107 R)
• M19: 12,739,755 km (0.083 R)
• M20: 15,061,813 km (0.111 R)
• M21: 17,803,643 km (0.046 R)
• M22: 18,187,511 km (0.108 R)
• M23: 19,615,123 km (0.091 R)
• M24: 20,691,629 km (0.114 R)
• M25: 21,807,031 km (0.118 R)
• M26: 29,246,085 km (0.096 R)
• M27: 32,779,137 km (0.107 R)
• M28: 36,095,273 km (0.063 R)
• M29: 39,628,177 km (0.092 R)
• M30: 42,152,641 km (0.064 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 239.8

Radius: 7.7

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 9.08 AU - 11.04 AU

Year: 21278 Days

Day: 23.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,400,328 km

• M1: 95,743 km (0.09 R)
• M2: 967,449 km (0.105 R)
• M3: 1,243,458 km (0.094 R)
• M4: 2,446,972 km (0.071 R)
• M5: 2,898,908 km (0.054 R)
• M6: 4,408,799 km (0.107 R)
• M7: 8,076,939 km (0.108 R)
• M8: 12,884,117 km (0.069 R)
• M9: 19,150,023 km (0.075 R)
• M10: 21,444,406 km (0.051 R)
• M11: 22,979,430 km (0.063 R)
• M12: 26,877,801 km (0.082 R)
• M13: 27,498,333 km (0.041 R)
• M14: 28,660,409 km (0.058 R)
• M15: 30,632,258 km (0.117 R)
• M16: 31,995,993 km (0.107 R)
• M17: 34,357,993 km (0.063 R)
• M18: 37,727,835 km (0.119 R)
• M19: 40,631,530 km (0.063 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 443.6

Radius: 4.9

Gravity: 18.48 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 8.43 AU - 12.51 AU

Year: 22592 Days

Day: 20.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 71,400,328 km

• M1: 60,886 km (0.116 R)
• M2: 430,243 km (0.081 R)
• M3: 702,960 km (0.101 R)
• M4: 1,660,836 km (0.11 R)
• M5: 2,045,452 km (0.112 R)
• M6: 2,791,347 km (0.116 R)
• M7: 3,067,504 km (0.11 R)
• M8: 3,306,861 km (0.084 R)
• M9: 4,006,530 km (0.067 R)
• M10: 4,491,078 km (0.1 R)
• M11: 5,460,472 km (0.106 R)
• M12: 11,170,024 km (0.084 R)
• M13: 13,765,248 km (0.105 R)
• M14: 14,343,145 km (0.09 R)
• M15: 15,937,110 km (0.063 R)
• M16: 17,311,166 km (0.062 R)
• M17: 17,729,741 km (0.101 R)
• M18: 19,562,166 km (0.115 R)
• M19: 20,384,804 km (0.074 R)
• M20: 21,230,331 km (0.1 R)
• M21: 24,217,053 km (0.094 R)
• M22: 26,577,408 km (0.094 R)
• M23: 29,204,347 km (0.084 R)
• M24: 36,313,387 km (0.086 R)
• M25: 40,119,157 km (0.076 R)
• M26: 40,411,172 km (0.114 R)
• M27: 45,913,232 km (0.114 R)
• M28: 46,553,810 km (0.106 R)
• M29: 49,175,662 km (0.045 R)
• M30: 53,290,352 km (0.095 R)
• M31: 58,936,924 km (0.08 R)
• M32: 64,568,236 km (0.037 R)
• M33: 69,701,837 km (0.047 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: 201 - 14,743 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit