🌌 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: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.41 AU - 0.69 AU

Year: 263 Days

Day: 37.9 Hours

Environment

Temp: -126 °C

Axial Tilt: 9.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.3

Radius: 13.4

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.75 AU - 1.07 AU

Year: 561 Days

Day: 10.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,386,119 km

• M1: 167,250 km (0.064 R)
• M2: 592,408 km (0.087 R)
• M3: 1,232,238 km (0.104 R)
• M4: 2,333,428 km (0.104 R)
• M5: 3,407,690 km (0.115 R)
• M6: 4,196,968 km (0.113 R)
• M7: 4,715,325 km (0.114 R)
• M8: 5,244,901 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.9

Radius: 8.7

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.27 AU - 1.43 AU

Year: 1013 Days

Day: 8.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 81,386,119 km

• M1: 129,253 km (0.101 R)
• M2: 505,940 km (0.077 R)
• M3: 912,547 km (0.117 R)
• M4: 1,192,445 km (0.11 R)
• M5: 1,536,669 km (0.099 R)
• M6: 2,941,244 km (0.11 R)
• M7: 3,238,495 km (0.107 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 702.4

Radius: 3.3

Gravity: 64.5 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 5.56 AU - 6.62 AU

Year: 9704 Days

Day: 20.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 81,386,119 km

• M1: 40,990 km (0.118 R)
• M2: 565,929 km (0.11 R)
• M3: 873,053 km (0.043 R)
• M4: 1,370,915 km (0.054 R)
• M5: 1,885,083 km (0.056 R)
• M6: 2,557,226 km (0.055 R)
• M7: 2,700,391 km (0.036 R)
• M8: 2,827,400 km (0.12 R)
• M9: 3,002,878 km (0.085 R)
• M10: 3,448,680 km (0.076 R)
• M11: 3,910,488 km (0.113 R)
• M12: 4,268,775 km (0.051 R)
• M13: 4,441,262 km (0.078 R)
• M14: 4,648,455 km (0.119 R)
• M15: 6,209,957 km (0.118 R)
• M16: 6,620,155 km (0.088 R)
• M17: 7,330,146 km (0.114 R)
• M18: 11,159,403 km (0.102 R)
• M19: 11,820,775 km (0.062 R)
• M20: 12,507,878 km (0.061 R)
• M21: 12,861,228 km (0.109 R)
• M22: 13,836,157 km (0.098 R)
• M23: 14,663,583 km (0.107 R)
• M24: 15,794,693 km (0.086 R)
• M25: 18,229,099 km (0.115 R)
• M26: 18,455,141 km (0.067 R)
• M27: 19,456,549 km (0.095 R)
• M28: 24,367,548 km (0.099 R)
• M29: 25,854,701 km (0.116 R)
• M30: 35,711,405 km (0.084 R)
• M31: 40,114,370 km (0.083 R)
• M32: 42,710,192 km (0.076 R)
• M33: 43,109,020 km (0.059 R)
• M34: 43,914,006 km (0.108 R)
• M35: 44,592,432 km (0.06 R)
• M36: 44,728,866 km (0.066 R)
• M37: 45,277,740 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 371

Radius: 7.7

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 6.46 AU - 8.6 AU

Year: 13342 Days

Day: 21.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 81,386,119 km

• M1: 130,150 km (0.083 R)
• M2: 409,749 km (0.042 R)
• M3: 1,078,601 km (0.117 R)
• M4: 1,321,248 km (0.077 R)
• M5: 1,644,230 km (0.076 R)
• M6: 3,258,242 km (0.085 R)
• M7: 3,749,072 km (0.088 R)
• M8: 5,792,579 km (0.109 R)
• M9: 6,217,886 km (0.099 R)
• M10: 7,012,251 km (0.116 R)
• M11: 8,528,724 km (0.025 R)
• M12: 9,411,651 km (0.045 R)
• M13: 10,456,891 km (0.048 R)
• M14: 12,776,107 km (0.09 R)
• M15: 15,152,020 km (0.102 R)
• M16: 16,866,562 km (0.12 R)
• M17: 19,635,618 km (0.118 R)
• M18: 20,433,124 km (0.105 R)
• M19: 20,839,881 km (0.099 R)
• M20: 22,607,380 km (0.116 R)
• M21: 23,306,301 km (0.043 R)
• M22: 26,151,054 km (0.086 R)
• M23: 26,921,034 km (0.043 R)
• M24: 29,321,931 km (0.117 R)
• M25: 29,943,809 km (0.106 R)
• M26: 30,999,671 km (0.094 R)
• M27: 31,321,157 km (0.066 R)
• M28: 31,971,010 km (0.091 R)
• M29: 32,409,032 km (0.116 R)
• M30: 33,073,845 km (0.074 R)
• M31: 34,430,399 km (0.107 R)
• M32: 35,589,034 km (0.06 R)
• M33: 37,013,356 km (0.096 R)
• M34: 38,846,677 km (0.108 R)
• M35: 43,626,180 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 897.8

Radius: 3.8

Gravity: 62.17 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 9.48 AU - 9.8 AU

Year: 19326 Days

Day: 24.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 81,386,119 km

• M1: 47,273 km (0.061 R)
• M2: 167,699 km (0.04 R)
• M3: 356,043 km (0.109 R)
• M4: 553,961 km (0.084 R)
• M5: 913,295 km (0.105 R)
• M6: 1,228,797 km (0.115 R)
• M7: 1,776,026 km (0.094 R)
• M8: 2,265,510 km (0.104 R)
• M9: 2,662,842 km (0.114 R)
• M10: 3,445,688 km (0.052 R)
• M11: 4,133,988 km (0.085 R)
• M12: 5,818,908 km (0.096 R)
• M13: 6,559,418 km (0.098 R)
• M14: 7,263,425 km (0.05 R)
• M15: 8,930,694 km (0.09 R)
• M16: 9,326,679 km (0.108 R)
• M17: 10,398,698 km (0.028 R)
• M18: 11,092,832 km (0.059 R)
• M19: 12,088,256 km (0.104 R)
• M20: 13,069,917 km (0.112 R)
• M21: 13,359,838 km (0.059 R)
• M22: 13,877,446 km (0.116 R)
• M23: 15,753,853 km (0.053 R)
• M24: 19,152,567 km (0.04 R)
• M25: 20,289,062 km (0.109 R)
• M26: 20,775,703 km (0.108 R)
• M27: 22,488,150 km (0.071 R)
• M28: 32,741,140 km (0.05 R)
• M29: 33,816,000 km (0.113 R)
• M30: 38,056,053 km (0.11 R)
• M31: 39,846,739 km (0.082 R)
• M32: 42,162,963 km (0.074 R)
• M33: 42,320,639 km (0.096 R)
• M34: 48,085,094 km (0.105 R)
• M35: 48,602,254 km (0.06 R)
• M36: 49,123,154 km (0.077 R)
• M37: 51,243,853 km (0.089 R)
• M38: 56,236,682 km (0.075 R)
• M39: 56,427,569 km (0.108 R)
• M40: 63,798,854 km (0.118 R)
• M41: 65,684,087 km (0.066 R)
• M42: 69,126,633 km (0.068 R)
• M43: 72,235,725 km (0.115 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 187 - 18,563 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit