🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.62 AU - 0.64 AU

Year: 318 Days

Day: 41.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 28.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,251,044 km

• M1: 242,199 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.9

Radius: 11.4

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.97 AU - 0.99 AU

Year: 617 Days

Day: 7.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 77,251,044 km

• M1: 141,819 km (0.099 R)
• M2: 514,317 km (0.1 R)
• M3: 935,435 km (0.066 R)
• M4: 1,334,263 km (0.08 R)
• M5: 2,148,824 km (0.103 R)
• M6: 2,677,652 km (0.117 R)
• M7: 3,223,086 km (0.082 R)
• M8: 3,854,688 km (0.118 R)
• M9: 4,985,947 km (0.119 R)
• M10: 5,901,187 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.7

Radius: 9.2

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.62 AU - 3.08 AU

Year: 3059 Days

Day: 6.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 77,251,044 km

• M1: 114,442 km (0.115 R)
• M2: 1,341,594 km (0.115 R)
• M3: 1,755,830 km (0.093 R)
• M4: 2,435,304 km (0.05 R)
• M5: 2,796,433 km (0.116 R)
• M6: 3,878,474 km (0.069 R)
• M7: 4,658,627 km (0.094 R)
• M8: 5,169,953 km (0.064 R)
• M9: 5,900,738 km (0.111 R)
• M10: 6,931,169 km (0.11 R)
• M11: 7,412,126 km (0.068 R)
• M12: 8,885,066 km (0.056 R)
• M13: 9,201,615 km (0.075 R)
• M14: 10,158,743 km (0.115 R)
• M15: 10,740,379 km (0.116 R)
• M16: 11,180,795 km (0.045 R)
• M17: 13,245,395 km (0.028 R)
• M18: 14,415,849 km (0.085 R)
• M19: 14,902,790 km (0.056 R)
• M20: 15,250,157 km (0.069 R)
• M21: 16,012,657 km (0.118 R)
• M22: 17,122,823 km (0.099 R)
• M23: 17,669,005 km (0.052 R)
• M24: 18,170,606 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.6

Radius: 13.1

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 2.65 AU - 3.59 AU

Year: 3504 Days

Day: 11.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 77,251,044 km

• M1: 162,912 km (0.035 R)
• M2: 583,282 km (0.099 R)
• M3: 1,057,507 km (0.094 R)
• M4: 1,625,530 km (0.117 R)
• M5: 2,408,526 km (0.104 R)
• M6: 3,449,577 km (0.112 R)
• M7: 4,653,092 km (0.114 R)
• M8: 6,176,298 km (0.038 R)
• M9: 6,701,386 km (0.1 R)
• M10: 8,353,396 km (0.107 R)
• M11: 11,426,884 km (0.1 R)
• M12: 14,017,171 km (0.081 R)
• M13: 14,978,636 km (0.11 R)
• M14: 15,449,271 km (0.073 R)
• M15: 15,929,630 km (0.074 R)
• M16: 17,661,375 km (0.063 R)
• M17: 18,305,095 km (0.113 R)
• M18: 18,722,772 km (0.096 R)
• M19: 20,203,641 km (0.091 R)
• M20: 21,694,833 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.7

Radius: 14.7

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.87 AU - 4.69 AU

Year: 4673 Days

Day: 8.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 77,251,044 km

• M1: 182,809 km (0.117 R)
• M2: 798,105 km (0.093 R)
• M3: 1,419,385 km (0.069 R)
• M4: 1,888,673 km (0.1 R)
• M5: 2,524,464 km (0.113 R)
• M6: 3,319,876 km (0.046 R)
• M7: 5,953,846 km (0.114 R)
• M8: 6,500,775 km (0.056 R)
• M9: 8,382,118 km (0.081 R)
• M10: 9,955,439 km (0.069 R)
• M11: 13,978,425 km (0.106 R)
• M12: 14,637,703 km (0.112 R)
• M13: 15,158,902 km (0.09 R)
• M14: 15,854,981 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.7

Radius: 11.7

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.54 AU - 5.38 AU

Year: 5989 Days

Day: 10.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 77,251,044 km

• M1: 148,401 km (0.029 R)
• M2: 528,529 km (0.107 R)
• M3: 1,262,307 km (0.106 R)
• M4: 1,850,376 km (0.086 R)
• M5: 2,680,943 km (0.05 R)
• M6: 5,333,762 km (0.084 R)
• M7: 5,800,209 km (0.05 R)
• M8: 8,121,220 km (0.103 R)
• M9: 9,390,109 km (0.053 R)
• M10: 13,784,845 km (0.093 R)
• M11: 14,195,043 km (0.102 R)
• M12: 18,262,609 km (0.071 R)
• M13: 20,231,616 km (0.069 R)
• M14: 23,263,815 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.7

Radius: 12.6

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 4.33 AU - 6.95 AU

Year: 8516 Days

Day: 13.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 77,251,044 km

• M1: 157,377 km (0.118 R)
• M2: 857,645 km (0.081 R)
• M3: 1,312,572 km (0.085 R)
• M4: 1,868,926 km (0.118 R)
• M5: 2,354,670 km (0.077 R)
• M6: 2,924,638 km (0.08 R)
• M7: 3,464,836 km (0.056 R)
• M8: 4,688,098 km (0.114 R)
• M9: 5,832,073 km (0.083 R)
• M10: 7,718,951 km (0.077 R)
• M11: 9,215,528 km (0.037 R)
• M12: 9,836,359 km (0.049 R)
• M13: 11,646,942 km (0.116 R)
• M14: 12,776,257 km (0.106 R)
• M15: 15,186,877 km (0.09 R)
• M16: 15,850,792 km (0.114 R)
• M17: 16,883,017 km (0.05 R)
• M18: 17,668,107 km (0.091 R)
• M19: 20,729,328 km (0.111 R)
• M20: 22,216,032 km (0.102 R)
• M21: 25,679,073 km (0.096 R)
• M22: 26,909,216 km (0.047 R)
• M23: 31,152,709 km (0.095 R)
• M24: 31,793,138 km (0.058 R)
• M25: 36,173,064 km (0.095 R)
• M26: 39,929,467 km (0.084 R)
• M27: 40,685,385 km (0.083 R)
• M28: 44,609,038 km (0.064 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 718.4

Radius: 5.3

Gravity: 25.57 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 6.48 AU - 9.82 AU

Year: 14793 Days

Day: 17.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 77,251,044 km

• M1: 75,846 km (0.079 R)
• M2: 254,466 km (0.098 R)
• M3: 452,982 km (0.044 R)
• M4: 634,295 km (0.077 R)
• M5: 1,365,230 km (0.084 R)
• M6: 2,097,063 km (0.066 R)
• M7: 2,891,727 km (0.06 R)
• M8: 3,062,119 km (0.1 R)
• M9: 3,265,273 km (0.112 R)
• M10: 4,261,744 km (0.103 R)
• M11: 5,859,898 km (0.045 R)
• M12: 7,182,792 km (0.081 R)
• M13: 11,824,664 km (0.102 R)
• M14: 13,303,589 km (0.059 R)
• M15: 14,543,905 km (0.095 R)
• M16: 16,010,114 km (0.086 R)
• M17: 17,331,661 km (0.059 R)
• M18: 18,640,343 km (0.071 R)
• M19: 23,542,666 km (0.098 R)
• M20: 24,235,154 km (0.111 R)
• M21: 24,737,953 km (0.117 R)
• M22: 25,556,851 km (0.034 R)
• M23: 26,182,769 km (0.082 R)
• M24: 29,694,729 km (0.073 R)
• M25: 30,039,252 km (0.03 R)
• M26: 30,386,469 km (0.113 R)
• M27: 31,207,013 km (0.077 R)
• M28: 31,921,942 km (0.11 R)
• M29: 32,404,544 km (0.114 R)
• M30: 33,260,992 km (0.078 R)
• M31: 35,274,729 km (0.089 R)
• M32: 38,991,937 km (0.113 R)
• M33: 40,521,126 km (0.09 R)
• M34: 42,089,660 km (0.12 R)
• M35: 44,442,835 km (0.075 R)
• M36: 45,195,910 km (0.108 R)
• M37: 46,882,327 km (0.066 R)
• M38: 48,293,035 km (0.096 R)
• M39: 48,928,976 km (0.059 R)
• M40: 50,543,286 km (0.081 R)
• M41: 52,526,804 km (0.119 R)
• M42: 54,390,195 km (0.051 R)
• M43: 56,297,119 km (0.056 R)
• M44: 61,723,633 km (0.046 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 282

Radius: 6.5

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 8.71 AU - 10.65 AU

Year: 19149 Days

Day: 19.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 77,251,044 km

• M1: 80,783 km (0.092 R)
• M2: 533,316 km (0.093 R)
• M3: 811,718 km (0.079 R)
• M4: 1,222,663 km (0.074 R)
• M5: 1,461,870 km (0.097 R)
• M6: 1,846,487 km (0.057 R)
• M7: 3,647,794 km (0.119 R)
• M8: 4,119,626 km (0.081 R)
• M9: 4,919,077 km (0.066 R)
• M10: 7,580,423 km (0.092 R)
• M11: 9,416,438 km (0.069 R)
• M12: 11,646,344 km (0.117 R)
• M13: 12,299,638 km (0.064 R)
• M14: 14,541,362 km (0.103 R)
• M15: 15,937,708 km (0.086 R)
• M16: 19,075,075 km (0.114 R)
• M17: 19,483,926 km (0.099 R)
• M18: 19,982,087 km (0.113 R)
• M19: 23,059,016 km (0.066 R)
• M20: 23,710,215 km (0.037 R)
• M21: 27,772,545 km (0.113 R)
• M22: 29,584,924 km (0.087 R)
• M23: 30,132,751 km (0.105 R)
• M24: 32,275,741 km (0.11 R)
• M25: 44,960,144 km (0.089 R)
• M26: 45,393,529 km (0.032 R)
• M27: 53,516,693 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 537.3

Radius: 7.7

Gravity: 9.06 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 10.76 AU - 11.18 AU

Year: 23102 Days

Day: 20.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 77,251,044 km

• M1: 96,042 km (0.056 R)
• M2: 516,412 km (0.089 R)
• M3: 770,279 km (0.054 R)
• M4: 1,046,736 km (0.09 R)
• M5: 1,375,104 km (0.109 R)
• M6: 2,096,764 km (0.072 R)
• M7: 2,671,668 km (0.065 R)
• M8: 3,909,591 km (0.12 R)
• M9: 7,753,658 km (0.082 R)
• M10: 10,695,949 km (0.09 R)
• M11: 11,910,534 km (0.081 R)
• M12: 12,862,575 km (0.075 R)
• M13: 13,428,802 km (0.075 R)
• M14: 14,011,636 km (0.105 R)
• M15: 14,384,434 km (0.05 R)
• M16: 16,678,068 km (0.041 R)
• M17: 17,351,408 km (0.103 R)
• M18: 17,781,353 km (0.098 R)
• M19: 19,113,970 km (0.101 R)
• M20: 19,851,189 km (0.115 R)
• M21: 20,416,519 km (0.081 R)
• M22: 20,895,681 km (0.084 R)
• M23: 22,785,551 km (0.096 R)
• M24: 23,930,274 km (0.064 R)
• M25: 24,355,880 km (0.079 R)
• M26: 34,233,229 km (0.089 R)
• M27: 35,871,475 km (0.066 R)
• M28: 37,848,112 km (0.1 R)
• M29: 43,893,960 km (0.072 R)
• M30: 48,489,307 km (0.081 R)
• M31: 51,606,777 km (0.083 R)
• M32: 57,664,594 km (0.064 R)
• M33: 59,395,441 km (0.103 R)
• M34: 62,156,120 km (0.085 R)
• M35: 65,829,795 km (0.116 R)
• M36: 69,645,737 km (0.111 R)
• M37: 74,506,621 km (0.065 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: 253 - 14,509 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit