🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.56 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.02 AU - 1.2 AU

Year: 436 Days

Day: 12.9 Hours

Environment

Temp: -8 °C

Axial Tilt: 41.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.52

Radius: 0.77

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.12 AU - 1.48 AU

Year: 553 Days

Day: 31 Hours

Environment

Temp: -27 °C

Axial Tilt: 38.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.7

Radius: 0.87

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.16 AU - 1.56 AU

Year: 591 Days

Day: 37.2 Hours

Environment

Temp: -41 °C

Axial Tilt: 0.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 107,453,723 km

• M1: 35,455 km (0.048 R)
• M2: 210,783 km (0.092 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.35 AU - 1.75 AU

Year: 719 Days

Day: 34.8 Hours

Environment

Temp: -47 °C

Axial Tilt: 37.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.31 AU - 1.99 AU

Year: 790 Days

Day: 30.1 Hours

Environment

Temp: -52 °C

Axial Tilt: 29.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 3.13 AU - 3.17 AU

Year: 2084 Days

Day: 35.6 Hours

Environment

Temp: -115 °C

Axial Tilt: 48.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 107,453,723 km

• M1: 822,639 km (0.082 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.96

Radius: 0.98

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.3 AU - 3.58 AU

Year: 2378 Days

Day: 31.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 38.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.8

Radius: 8.1

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 6.59 AU - 8.03 AU

Year: 7368 Days

Day: 6.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 107,453,723 km

• M1: 120,576 km (0.068 R)
• M2: 294,109 km (0.054 R)
• M3: 409,449 km (0.093 R)
• M4: 678,127 km (0.075 R)
• M5: 740,360 km (0.036 R)
• M6: 882,179 km (0.09 R)
• M7: 962,363 km (0.112 R)
• M8: 1,069,176 km (0.085 R)
• M9: 1,180,178 km (0.12 R)
• M10: 1,256,323 km (0.045 R)
• M11: 1,454,241 km (0.117 R)
• M12: 1,748,201 km (0.113 R)
• M13: 1,865,186 km (0.081 R)
• M14: 1,939,536 km (0.101 R)
• M15: 2,106,936 km (0.087 R)
• M16: 2,247,409 km (0.092 R)
• M17: 2,670,621 km (0.111 R)
• M18: 2,943,488 km (0.07 R)
• M19: 3,065,560 km (0.118 R)
• M20: 3,118,517 km (0.119 R)
• M21: 3,315,089 km (0.084 R)
• M22: 3,534,250 km (0.115 R)
• M23: 3,795,896 km (0.117 R)
• M24: 4,122,020 km (0.04 R)
• M25: 4,200,110 km (0.077 R)
• M26: 4,397,579 km (0.072 R)
• M27: 4,678,973 km (0.09 R)
• M28: 4,904,267 km (0.097 R)
• M29: 5,154,095 km (0.049 R)
• M30: 5,259,562 km (0.088 R)
• M31: 5,408,262 km (0.084 R)
• M32: 5,601,393 km (0.106 R)
• M33: 5,775,226 km (0.083 R)
• M34: 6,016,976 km (0.045 R)
• M35: 6,329,486 km (0.097 R)
• M36: 6,442,283 km (0.115 R)
• M37: 7,298,581 km (0.046 R)
• M38: 7,488,421 km (0.07 R)
• M39: 7,583,864 km (0.047 R)
• M40: 8,190,184 km (0.09 R)
• M41: 8,461,854 km (0.08 R)
• M42: 8,711,383 km (0.049 R)
• M43: 9,090,315 km (0.102 R)
• M44: 9,166,759 km (0.1 R)
• M45: 9,655,795 km (0.116 R)
• M46: 9,759,915 km (0.05 R)
• M47: 10,021,561 km (0.039 R)
• M48: 10,578,813 km (0.09 R)
• M49: 10,659,297 km (0.078 R)
• M50: 10,901,795 km (0.115 R)
• M51: 11,091,635 km (0.085 R)
• M52: 11,173,315 km (0.097 R)
• M53: 11,310,048 km (0.082 R)
• M54: 11,447,229 km (0.12 R)
• M55: 12,057,439 km (0.05 R)
• M56: 12,141,513 km (0.112 R)
• M57: 12,394,782 km (0.1 R)
• M58: 12,877,983 km (0.117 R)
• M59: 13,078,743 km (0.105 R)
• M60: 13,193,934 km (0.091 R)
• M61: 13,309,423 km (0.112 R)
• M62: 13,367,318 km (0.118 R)
• M63: 14,039,162 km (0.089 R)
• M64: 14,334,618 km (0.043 R)
• M65: 15,720,343 km (0.118 R)
• M66: 16,119,619 km (0.114 R)
• M67: 16,367,054 km (0.055 R)
• M68: 16,709,185 km (0.109 R)
• M69: 16,771,716 km (0.104 R)
• M70: 17,305,930 km (0.029 R)
• M71: 17,527,485 km (0.093 R)
• M72: 17,590,914 km (0.076 R)
• M73: 18,229,997 km (0.093 R)
• M74: 18,358,800 km (0.077 R)
• M75: 18,455,441 km (0.103 R)
• M76: 19,268,355 km (0.079 R)
• M77: 19,366,641 km (0.054 R)
• M78: 19,827,702 km (0.09 R)
• M79: 20,559,535 km (0.086 R)
• M80: 21,029,870 km (0.079 R)
• M81: 22,738,278 km (0.068 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 971.5

Radius: 5.2

Gravity: 35.93 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 15.65 AU - 20.12 AU

Year: 28184 Days

Day: 16.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 107,453,723 km

• M1: 242,498 km (0.103 R)
• M2: 281,992 km (0.075 R)
• M3: 514,916 km (0.073 R)
• M4: 1,158,935 km (0.072 R)
• M5: 2,632,623 km (0.101 R)
• M6: 2,868,090 km (0.105 R)
• M7: 3,012,602 km (0.044 R)
• M8: 4,089,856 km (0.107 R)
• M9: 4,473,126 km (0.116 R)
• M10: 5,214,832 km (0.054 R)
• M11: 5,690,105 km (0.083 R)
• M12: 5,750,393 km (0.041 R)
• M13: 5,871,866 km (0.079 R)
• M14: 6,428,669 km (0.095 R)
• M15: 8,265,731 km (0.105 R)
• M16: 9,311,869 km (0.074 R)
• M17: 10,251,942 km (0.102 R)
• M18: 10,995,294 km (0.063 R)
• M19: 11,146,089 km (0.072 R)
• M20: 11,373,477 km (0.106 R)
• M21: 11,987,427 km (0.118 R)
• M22: 14,056,066 km (0.08 R)
• M23: 15,047,302 km (0.074 R)
• M24: 15,382,700 km (0.114 R)
• M25: 15,720,642 km (0.071 R)
• M26: 15,805,464 km (0.084 R)
• M27: 15,890,435 km (0.064 R)
• M28: 15,975,706 km (0.09 R)
• M29: 16,489,874 km (0.058 R)
• M30: 16,662,360 km (0.062 R)
• M31: 19,595,376 km (0.047 R)
• M32: 19,778,185 km (0.118 R)
• M33: 19,961,592 km (0.09 R)
• M34: 24,135,971 km (0.058 R)
• M35: 24,430,080 km (0.108 R)
• M36: 25,918,579 km (0.046 R)
• M37: 29,295,003 km (0.054 R)
• M38: 29,713,578 km (0.113 R)
• M39: 29,818,596 km (0.055 R)
• M40: 30,556,711 km (0.094 R)
• M41: 30,874,757 km (0.098 R)
• M42: 32,266,166 km (0.086 R)
• M43: 32,590,195 km (0.063 R)
• M44: 35,665,778 km (0.111 R)
• M45: 35,777,228 km (0.083 R)
• M46: 37,350,998 km (0.06 R)
• M47: 37,577,788 km (0.086 R)
• M48: 38,488,989 km (0.059 R)
• M49: 39,522,710 km (0.037 R)
• M50: 39,985,117 km (0.102 R)
• M51: 40,798,630 km (0.069 R)
• M52: 42,323,930 km (0.034 R)
• M53: 42,560,145 km (0.073 R)
• M54: 46,400,173 km (0.094 R)
• M55: 46,643,868 km (0.096 R)
• M56: 46,765,790 km (0.075 R)
• M57: 48,608,387 km (0.106 R)
• M58: 49,600,670 km (0.086 R)
• M59: 50,474,471 km (0.091 R)
• M60: 50,976,073 km (0.059 R)
• M61: 51,731,542 km (0.084 R)
• M62: 51,984,213 km (0.098 R)
• M63: 53,508,765 km (0.083 R)
• M64: 61,214,551 km (0.057 R)
• M65: 62,017,293 km (0.067 R)
• M66: 62,823,626 km (0.107 R)
• M67: 64,446,613 km (0.118 R)
• M68: 66,906,900 km (0.085 R)
• M69: 67,319,939 km (0.039 R)
• M70: 70,234,854 km (0.117 R)
• M71: 70,374,728 km (0.054 R)
• M72: 71,215,618 km (0.078 R)
• M73: 72,624,530 km (0.09 R)
• M74: 73,190,609 km (0.115 R)
• M75: 74,042,569 km (0.07 R)
• M76: 76,330,369 km (0.117 R)
• M77: 82,003,419 km (0.104 R)
• M78: 84,369,908 km (0.107 R)
• M79: 85,710,754 km (0.064 R)
• M80: 86,458,743 km (0.099 R)
• M81: 87,058,780 km (0.072 R)
• M82: 87,810,659 km (0.041 R)
• M83: 89,018,213 km (0.103 R)
• M84: 90,079,161 km (0.116 R)
• M85: 92,060,884 km (0.095 R)
• M86: 94,519,525 km (0.109 R)
• M87: 95,756,849 km (0.113 R)
• M88: 100,917,527 km (0.088 R)
• M89: 102,816,373 km (0.092 R)
• M90: 103,451,864 km (0.095 R)
• M91: 104,567,266 km (0.047 R)
• M92: 105,366,418 km (0.114 R)
• M93: 105,526,488 km (0.102 R)
• M94: 106,007,295 km (0.062 R)
• M95: 106,488,701 km (0.051 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 17,139 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit