🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.58 AU - 0.76 AU

Year: 208 Days

Day: 44.6 Hours

Environment

Temp: 117 °C

Axial Tilt: 9.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.93

Radius: 0.97

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.65 AU - 0.97 AU

Year: 276 Days

Day: 28.2 Hours

Environment

Temp: 120 °C

Axial Tilt: 9.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 39,641,804 km

• M1: 242,797 km (0.114 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.88 AU - 1.16 AU

Year: 390 Days

Day: 15.9 Hours

Environment

Temp: 21 °C

Axial Tilt: 9.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 39,641,804 km

• M1: 61,485 km (0.045 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.9 AU - 1.16 AU

Year: 396 Days

Day: 15.8 Hours

Environment

Temp: -5 °C

Axial Tilt: 16.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 39,641,804 km

• M1: 622,926 km (0.111 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.85 AU - 1.35 AU

Year: 437 Days

Day: 26.1 Hours

Environment

Temp: 13 °C

Axial Tilt: 25.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 39,641,804 km

• M1: 681,568 km (0.045 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.09 AU - 1.49 AU

Year: 555 Days

Day: 34.1 Hours

Environment

Temp: -25 °C

Axial Tilt: 19 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.99 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 12.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 771.1

Radius: 4.6

Gravity: 36.44 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 12.59 AU - 12.77 AU

Year: 17101 Days

Day: 21.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 39,641,804 km

• M1: 75,248 km (0.063 R)
• M2: 162,762 km (0.041 R)
• M3: 243,845 km (0.113 R)
• M4: 465,100 km (0.029 R)
• M5: 543,938 km (0.083 R)
• M6: 692,489 km (0.102 R)
• M7: 1,130,661 km (0.12 R)
• M8: 1,237,922 km (0.081 R)
• M9: 1,669,363 km (0.093 R)
• M10: 1,854,116 km (0.116 R)
• M11: 2,446,823 km (0.06 R)
• M12: 2,550,943 km (0.082 R)
• M13: 2,763,671 km (0.109 R)
• M14: 2,872,130 km (0.095 R)
• M15: 3,552,052 km (0.109 R)
• M16: 3,670,085 km (0.075 R)
• M17: 3,910,040 km (0.088 R)
• M18: 4,279,397 km (0.077 R)
• M19: 4,489,432 km (0.075 R)
• M20: 4,659,974 km (0.102 R)
• M21: 4,702,908 km (0.07 R)
• M22: 5,864,985 km (0.055 R)
• M23: 5,911,360 km (0.087 R)
• M24: 6,962,734 km (0.073 R)
• M25: 8,225,789 km (0.075 R)
• M26: 8,277,699 km (0.11 R)
• M27: 8,750,428 km (0.106 R)
• M28: 10,557,122 km (0.108 R)
• M29: 10,613,520 km (0.101 R)
• M30: 10,783,613 km (0.106 R)
• M31: 11,241,682 km (0.071 R)
• M32: 11,415,066 km (0.08 R)
• M33: 11,999,544 km (0.026 R)
• M34: 12,833,852 km (0.118 R)
• M35: 13,686,859 km (0.075 R)
• M36: 13,871,911 km (0.032 R)
• M37: 14,683,929 km (0.116 R)
• M38: 15,191,065 km (0.101 R)
• M39: 15,768,663 km (0.091 R)
• M40: 15,962,691 km (0.083 R)
• M41: 16,092,542 km (0.117 R)
• M42: 16,222,842 km (0.116 R)
• M43: 17,210,337 km (0.08 R)
• M44: 17,745,000 km (0.078 R)
• M45: 18,285,049 km (0.11 R)
• M46: 19,381,302 km (0.102 R)
• M47: 20,923,057 km (0.095 R)
• M48: 21,278,801 km (0.03 R)
• M49: 23,381,998 km (0.06 R)
• M50: 24,196,857 km (0.112 R)
• M51: 26,312,769 km (0.075 R)
• M52: 26,466,107 km (0.102 R)
• M53: 26,773,830 km (0.118 R)
• M54: 27,548,149 km (0.11 R)
• M55: 28,016,390 km (0.076 R)
• M56: 28,565,863 km (0.117 R)
• M57: 29,995,121 km (0.095 R)
• M58: 30,637,794 km (0.038 R)
• M59: 31,284,954 km (0.077 R)
• M60: 33,005,180 km (0.111 R)
• M61: 33,336,240 km (0.094 R)
• M62: 34,420,076 km (0.113 R)
• M63: 35,346,087 km (0.029 R)
• M64: 36,451,017 km (0.112 R)
• M65: 39,394,056 km (0.045 R)
• M66: 43,676,594 km (0.093 R)
• M67: 45,780,389 km (0.1 R)
• M68: 46,149,597 km (0.069 R)
• M69: 46,334,500 km (0.09 R)
• M70: 47,076,954 km (0.076 R)
• M71: 47,356,403 km (0.09 R)
• M72: 48,950,069 km (0.071 R)
• M73: 49,327,654 km (0.058 R)
• M74: 50,752,125 km (0.112 R)
• M75: 51,709,252 km (0.091 R)
• M76: 52,768,854 km (0.109 R)
• M77: 54,420,564 km (0.106 R)
• M78: 54,713,776 km (0.077 R)
• M79: 54,909,599 km (0.084 R)
• M80: 56,286,648 km (0.033 R)
• M81: 56,385,382 km (0.086 R)
• M82: 58,673,482 km (0.09 R)
• M83: 60,182,027 km (0.085 R)
• M84: 61,499,685 km (0.112 R)
• M85: 61,703,287 km (0.118 R)
• M86: 62,111,091 km (0.082 R)
• M87: 63,751,282 km (0.051 R)
• M88: 65,094,372 km (0.09 R)
• M89: 66,029,508 km (0.113 R)
• M90: 68,756,378 km (0.087 R)
• M91: 70,346,155 km (0.112 R)
• M92: 70,452,668 km (0.037 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 708.7

Radius: 7.9

Gravity: 11.36 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 10.46 AU - 17.43 AU

Year: 19713 Days

Day: 19.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 39,641,804 km

• M1: 152,739 km (0.072 R)
• M2: 346,618 km (0.045 R)
• M3: 435,928 km (0.108 R)
• M4: 730,187 km (0.077 R)
• M5: 1,026,989 km (0.113 R)
• M6: 1,134,101 km (0.098 R)
• M7: 1,216,979 km (0.12 R)
• M8: 1,538,315 km (0.077 R)
• M9: 1,599,650 km (0.112 R)
• M10: 1,820,606 km (0.079 R)
• M11: 2,651,173 km (0.046 R)
• M12: 3,105,502 km (0.105 R)
• M13: 3,262,430 km (0.088 R)
• M14: 3,421,902 km (0.076 R)
• M15: 3,584,066 km (0.113 R)
• M16: 3,915,874 km (0.108 R)
• M17: 4,171,387 km (0.068 R)
• M18: 5,575,513 km (0.099 R)
• M19: 5,814,570 km (0.063 R)
• M20: 6,502,122 km (0.111 R)
• M21: 8,385,260 km (0.052 R)
• M22: 9,216,276 km (0.055 R)
• M23: 9,613,159 km (0.111 R)
• M24: 9,727,452 km (0.108 R)
• M25: 12,108,900 km (0.119 R)
• M26: 12,856,890 km (0.066 R)
• M27: 13,491,484 km (0.082 R)
• M28: 14,071,475 km (0.111 R)
• M29: 14,266,551 km (0.099 R)
• M30: 15,456,153 km (0.07 R)
• M31: 15,859,618 km (0.085 R)
• M32: 16,266,674 km (0.104 R)
• M33: 16,539,989 km (0.105 R)
• M34: 18,494,934 km (0.064 R)
• M35: 18,780,217 km (0.099 R)
• M36: 19,066,847 km (0.097 R)
• M37: 19,644,594 km (0.035 R)
• M38: 23,537,280 km (0.112 R)
• M39: 24,938,713 km (0.1 R)
• M40: 26,127,119 km (0.08 R)
• M41: 26,688,111 km (0.119 R)
• M42: 29,385,360 km (0.052 R)
• M43: 29,968,493 km (0.08 R)
• M44: 30,303,592 km (0.091 R)
• M45: 31,741,078 km (0.101 R)
• M46: 31,826,349 km (0.071 R)
• M47: 33,982,353 km (0.069 R)
• M48: 37,168,788 km (0.109 R)
• M49: 37,528,720 km (0.117 R)
• M50: 37,889,700 km (0.07 R)
• M51: 38,524,294 km (0.056 R)
• M52: 39,071,074 km (0.116 R)
• M53: 40,264,566 km (0.069 R)
• M54: 42,123,918 km (0.089 R)
• M55: 42,969,744 km (0.1 R)
• M56: 44,201,384 km (0.117 R)
• M57: 46,118,780 km (0.088 R)
• M58: 46,215,420 km (0.059 R)
• M59: 47,184,814 km (0.08 R)
• M60: 48,651,621 km (0.11 R)
• M61: 49,242,533 km (0.082 R)
• M62: 49,637,770 km (0.068 R)
• M63: 50,133,388 km (0.06 R)
• M64: 50,730,284 km (0.111 R)
• M65: 51,229,342 km (0.089 R)
• M66: 51,830,576 km (0.087 R)
• M67: 53,648,040 km (0.091 R)
• M68: 54,666,652 km (0.077 R)
• M69: 55,588,923 km (0.102 R)
• M70: 56,103,540 km (0.058 R)
• M71: 57,241,232 km (0.052 R)
• M72: 59,855,006 km (0.072 R)
• M73: 61,654,518 km (0.031 R)
• M74: 62,187,087 km (0.099 R)
• M75: 62,828,263 km (0.102 R)
• M76: 64,117,348 km (0.088 R)
• M77: 64,548,788 km (0.081 R)
• M78: 64,656,948 km (0.076 R)
• M79: 66,393,929 km (0.1 R)
• M80: 67,049,167 km (0.113 R)
• M81: 67,268,029 km (0.092 R)
• M82: 67,377,684 km (0.1 R)
• M83: 69,470,259 km (0.085 R)
• M84: 69,691,814 km (0.067 R)
• M85: 70,246,672 km (0.104 R)
• M86: 71,137,378 km (0.087 R)
• M87: 71,248,978 km (0.113 R)
• M88: 72,705,164 km (0.108 R)
• M89: 73,155,304 km (0.083 R)
• M90: 73,380,598 km (0.104 R)
• M91: 74,171,223 km (0.119 R)
• M92: 75,647,006 km (0.113 R)
• M93: 76,217,123 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 65.7

Radius: 3.7

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 14.69 AU - 17.35 AU

Year: 24285 Days

Day: 21.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 69.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 39,641,804 km

• M1: 339,288 km (0.081 R)
• M2: 374,743 km (0.098 R)
• M3: 763,697 km (0.076 R)
• M4: 1,354,908 km (0.036 R)
• M5: 1,590,225 km (0.119 R)
• M6: 2,164,831 km (0.119 R)
• M7: 2,603,901 km (0.036 R)
• M8: 2,821,416 km (0.097 R)
• M9: 3,044,616 km (0.118 R)
• M10: 3,508,220 km (0.042 R)
• M11: 3,640,763 km (0.091 R)
• M12: 3,829,257 km (0.093 R)
• M13: 3,938,463 km (0.105 R)
• M14: 4,131,893 km (0.063 R)
• M15: 4,499,306 km (0.072 R)
• M16: 4,995,522 km (0.064 R)
• M17: 5,174,740 km (0.082 R)
• M18: 5,295,465 km (0.026 R)
• M19: 5,447,606 km (0.069 R)
• M20: 5,539,609 km (0.099 R)
• M21: 6,070,382 km (0.086 R)
• M22: 6,487,312 km (0.112 R)
• M23: 6,748,360 km (0.098 R)
• M24: 6,814,183 km (0.113 R)
• M25: 7,046,359 km (0.061 R)
• M26: 7,213,609 km (0.09 R)
• M27: 7,620,516 km (0.115 R)
• M28: 8,456,618 km (0.076 R)
• M29: 8,670,094 km (0.096 R)
• M30: 9,321,294 km (0.072 R)
• M31: 10,862,152 km (0.058 R)
• M32: 12,158,417 km (0.114 R)
• M33: 12,238,602 km (0.073 R)
• M34: 12,723,000 km (0.09 R)
• M35: 14,424,975 km (0.079 R)
• M36: 14,850,730 km (0.078 R)
• M37: 14,979,235 km (0.034 R)
• M38: 15,065,254 km (0.117 R)
• M39: 17,990,341 km (0.065 R)
• M40: 18,771,391 km (0.099 R)
• M41: 18,864,142 km (0.119 R)
• M42: 18,910,517 km (0.107 R)
• M43: 19,423,040 km (0.039 R)
• M44: 19,704,583 km (0.065 R)
• M45: 20,224,136 km (0.083 R)
• M46: 21,809,724 km (0.105 R)
• M47: 21,955,881 km (0.029 R)
• M48: 22,347,080 km (0.077 R)
• M49: 24,186,236 km (0.058 R)
• M50: 24,236,650 km (0.112 R)
• M51: 25,200,509 km (0.086 R)
• M52: 25,302,685 km (0.042 R)
• M53: 25,712,882 km (0.062 R)
• M54: 26,539,560 km (0.108 R)
• M55: 26,851,920 km (0.076 R)
• M56: 27,008,549 km (0.037 R)
• M57: 27,848,840 km (0.117 R)
• M58: 29,716,869 km (0.111 R)
• M59: 29,770,874 km (0.059 R)
• M60: 29,878,884 km (0.079 R)
• M61: 30,095,352 km (0.075 R)
• M62: 30,312,269 km (0.12 R)
• M63: 30,475,330 km (0.084 R)
• M64: 30,693,145 km (0.039 R)
• M65: 32,732,912 km (0.119 R)
• M66: 34,022,745 km (0.113 R)
• M67: 34,135,541 km (0.116 R)
• M68: 34,929,756 km (0.102 R)
• M69: 35,043,600 km (0.06 R)
• M70: 35,902,143 km (0.108 R)
• M71: 36,017,034 km (0.065 R)
• M72: 36,941,399 km (0.118 R)
• M73: 38,577,551 km (0.107 R)
• M74: 39,167,565 km (0.107 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 14,813 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit