🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.13

Radius: 0.44

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.85 AU - 1.11 AU

Year: 367 Days

Day: 22.5 Hours

Environment

Temp: 21 °C

Axial Tilt: 21.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 73,770,280 km

• M1: 11,968 km (0.067 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.98 AU - 1.02 AU

Year: 379 Days

Day: 22.2 Hours

Environment

Temp: 2 °C

Axial Tilt: 4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 73,770,280 km

• M1: 174,730 km (0.087 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.81 AU - 1.23 AU

Year: 390 Days

Day: 25.2 Hours

Environment

Temp: 3 °C

Axial Tilt: 4.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.3

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.01 AU - 1.41 AU

Year: 504 Days

Day: 42.9 Hours

Environment

Temp: -1 °C

Axial Tilt: 38.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.79 AU - 1.97 AU

Year: 976 Days

Day: 14.2 Hours

Environment

Temp: -72 °C

Axial Tilt: 33.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 73,770,280 km

• M1: 645,515 km (0.086 R)
• M2: 1,856,958 km (0.105 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2 AU - 2.4 AU

Year: 1236 Days

Day: 40 Hours

Environment

Temp: -97 °C

Axial Tilt: 26.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.3

Radius: 14.8

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.99 AU - 5.19 AU

Year: 3724 Days

Day: 7.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (70)

Outer Limit: 73,770,280 km

• M1: 191,036 km (0.093 R)
• M2: 557,402 km (0.103 R)
• M3: 681,269 km (0.097 R)
• M4: 793,168 km (0.114 R)
• M5: 912,397 km (0.089 R)
• M6: 1,310,178 km (0.108 R)
• M7: 1,425,518 km (0.03 R)
• M8: 1,698,684 km (0.068 R)
• M9: 1,972,747 km (0.083 R)
• M10: 2,157,949 km (0.115 R)
• M11: 2,261,471 km (0.112 R)
• M12: 2,509,953 km (0.112 R)
• M13: 2,767,561 km (0.063 R)
• M14: 3,014,696 km (0.053 R)
• M15: 3,150,830 km (0.09 R)
• M16: 3,429,531 km (0.077 R)
• M17: 3,716,310 km (0.111 R)
• M18: 4,468,040 km (0.059 R)
• M19: 4,691,539 km (0.074 R)
• M20: 4,873,001 km (0.04 R)
• M21: 5,126,420 km (0.068 R)
• M22: 5,550,530 km (0.076 R)
• M23: 6,407,875 km (0.079 R)
• M24: 6,635,114 km (0.075 R)
• M25: 6,916,508 km (0.088 R)
• M26: 7,411,976 km (0.063 R)
• M27: 7,623,956 km (0.109 R)
• M28: 8,244,937 km (0.112 R)
• M29: 8,409,644 km (0.097 R)
• M30: 8,520,048 km (0.102 R)
• M31: 9,107,668 km (0.104 R)
• M32: 10,678,595 km (0.079 R)
• M33: 10,888,331 km (0.083 R)
• M34: 11,373,029 km (0.074 R)
• M35: 12,207,037 km (0.11 R)
• M36: 12,395,081 km (0.113 R)
• M37: 12,615,588 km (0.049 R)
• M38: 12,805,727 km (0.109 R)
• M39: 14,031,831 km (0.032 R)
• M40: 14,393,858 km (0.046 R)
• M41: 15,295,335 km (0.066 R)
• M42: 16,043,474 km (0.118 R)
• M43: 16,215,212 km (0.11 R)
• M44: 16,560,335 km (0.115 R)
• M45: 16,768,725 km (0.059 R)
• M46: 16,943,006 km (0.032 R)
• M47: 17,681,571 km (0.106 R)
• M48: 18,251,239 km (0.073 R)
• M49: 18,935,799 km (0.085 R)
• M50: 19,189,966 km (0.067 R)
• M51: 19,445,479 km (0.098 R)
• M52: 19,665,388 km (0.059 R)
• M53: 19,775,492 km (0.113 R)
• M54: 20,552,952 km (0.077 R)
• M55: 21,152,092 km (0.115 R)
• M56: 21,605,074 km (0.085 R)
• M57: 21,947,055 km (0.089 R)
• M58: 22,367,425 km (0.11 R)
• M59: 22,829,084 km (0.09 R)
• M60: 22,983,618 km (0.076 R)
• M61: 23,099,706 km (0.094 R)
• M62: 23,216,094 km (0.056 R)
• M63: 23,332,630 km (0.091 R)
• M64: 23,527,407 km (0.084 R)
• M65: 23,879,111 km (0.108 R)
• M66: 24,232,761 km (0.112 R)
• M67: 24,627,549 km (0.041 R)
• M68: 24,825,767 km (0.061 R)
• M69: 26,309,329 km (0.065 R)
• M70: 27,204,971 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 311.8

Radius: 7.5

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 16.39 AU - 19.09 AU

Year: 28300 Days

Day: 19.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 73,770,280 km

• M1: 127,457 km (0.093 R)
• M2: 555,158 km (0.071 R)
• M3: 1,017,864 km (0.093 R)
• M4: 1,399,787 km (0.072 R)
• M5: 1,516,623 km (0.114 R)
• M6: 1,729,202 km (0.087 R)
• M7: 1,823,299 km (0.082 R)
• M8: 1,983,967 km (0.094 R)
• M9: 2,708,320 km (0.095 R)
• M10: 3,194,363 km (0.1 R)
• M11: 3,707,334 km (0.118 R)
• M12: 4,676,579 km (0.067 R)
• M13: 5,303,095 km (0.106 R)
• M14: 5,908,368 km (0.112 R)
• M15: 5,955,790 km (0.115 R)
• M16: 6,981,882 km (0.109 R)
• M17: 8,009,021 km (0.119 R)
• M18: 8,755,814 km (0.101 R)
• M19: 9,192,640 km (0.112 R)
• M20: 9,524,747 km (0.106 R)
• M21: 9,804,644 km (0.079 R)
• M22: 11,362,108 km (0.072 R)
• M23: 11,718,600 km (0.081 R)
• M24: 11,838,278 km (0.071 R)
• M25: 13,870,266 km (0.112 R)
• M26: 13,933,546 km (0.106 R)
• M27: 14,829,039 km (0.059 R)
• M28: 15,283,666 km (0.091 R)
• M29: 17,215,873 km (0.088 R)
• M30: 17,693,688 km (0.066 R)
• M31: 18,522,909 km (0.095 R)
• M32: 19,577,275 km (0.081 R)
• M33: 19,933,019 km (0.097 R)
• M34: 21,817,204 km (0.12 R)
• M35: 22,855,114 km (0.088 R)
• M36: 23,004,712 km (0.117 R)
• M37: 23,154,609 km (0.116 R)
• M38: 24,518,343 km (0.059 R)
• M39: 26,848,479 km (0.106 R)
• M40: 26,927,318 km (0.095 R)
• M41: 27,323,004 km (0.063 R)
• M42: 28,521,283 km (0.119 R)
• M43: 28,762,883 km (0.069 R)
• M44: 29,573,554 km (0.093 R)
• M45: 30,227,447 km (0.112 R)
• M46: 30,309,576 km (0.114 R)
• M47: 31,300,213 km (0.117 R)
• M48: 31,383,240 km (0.114 R)
• M49: 32,133,772 km (0.083 R)
• M50: 34,764,152 km (0.1 R)
• M51: 35,194,844 km (0.059 R)
• M52: 35,367,629 km (0.114 R)
• M53: 36,148,530 km (0.056 R)
• M54: 37,286,671 km (0.072 R)
• M55: 38,436,480 km (0.11 R)
• M56: 38,971,143 km (0.113 R)
• M57: 40,047,649 km (0.1 R)
• M58: 40,318,272 km (0.028 R)
• M59: 40,499,136 km (0.063 R)
• M60: 41,315,940 km (0.101 R)
• M61: 42,413,540 km (0.079 R)
• M62: 42,781,550 km (0.09 R)
• M63: 43,984,916 km (0.106 R)
• M64: 44,450,763 km (0.119 R)
• M65: 45,387,096 km (0.106 R)
• M66: 45,952,128 km (0.113 R)
• M67: 52,614,618 km (0.102 R)
• M68: 52,812,237 km (0.119 R)
• M69: 53,604,956 km (0.11 R)
• M70: 54,202,151 km (0.112 R)
• M71: 55,403,123 km (0.049 R)
• M72: 59,571,817 km (0.039 R)
• M73: 60,500,371 km (0.041 R)
• M74: 61,850,043 km (0.077 R)
• M75: 65,745,422 km (0.102 R)
• M76: 66,171,177 km (0.108 R)
• M77: 67,883,774 km (0.118 R)
• M78: 69,069,636 km (0.1 R)
• M79: 72,009,085 km (0.12 R)
• M80: 73,328,687 km (0.111 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 253 - 19,688 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit