🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.8

Radius: 14.3

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.52 AU - 0.82 AU

Year: 379 Days

Day: 7.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,879,584 km

• M1: 178,021 km (0.095 R)
• M2: 627,413 km (0.101 R)
• M3: 1,108,071 km (0.037 R)
• M4: 1,652,907 km (0.077 R)
• M5: 2,419,596 km (0.091 R)
• M6: 3,436,113 km (0.12 R)
• M7: 3,904,205 km (0.09 R)
• M8: 4,639,928 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.2

Radius: 11

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.89 AU - 1.11 AU

Year: 690 Days

Day: 14.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,879,584 km

• M1: 136,882 km (0.072 R)
• M2: 496,216 km (0.1 R)
• M3: 864,376 km (0.102 R)
• M4: 1,582,745 km (0.093 R)
• M5: 2,384,590 km (0.083 R)
• M6: 2,823,510 km (0.048 R)
• M7: 3,232,062 km (0.113 R)
• M8: 3,641,212 km (0.082 R)
• M9: 4,327,567 km (0.106 R)
• M10: 5,413,797 km (0.096 R)
• M11: 5,813,822 km (0.093 R)
• M12: 6,214,894 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63

Radius: 12.9

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.29 AU - 1.93 AU

Year: 1410 Days

Day: 5.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,879,584 km

• M1: 161,416 km (0.094 R)
• M2: 610,509 km (0.1 R)
• M3: 1,151,006 km (0.109 R)
• M4: 1,799,513 km (0.06 R)
• M5: 2,960,691 km (0.045 R)
• M6: 3,723,790 km (0.102 R)
• M7: 4,820,642 km (0.035 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.2

Radius: 9.6

Gravity: 9.64 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 5.18 AU - 5.88 AU

Year: 8976 Days

Day: 12.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,879,584 km

• M1: 119,379 km (0.107 R)
• M2: 431,590 km (0.037 R)
• M3: 1,679,685 km (0.073 R)
• M4: 2,043,208 km (0.101 R)
• M5: 2,677,951 km (0.087 R)
• M6: 3,294,893 km (0.117 R)
• M7: 3,612,340 km (0.049 R)
• M8: 4,058,291 km (0.1 R)
• M9: 4,659,525 km (0.094 R)
• M10: 5,723,315 km (0.037 R)
• M11: 6,039,715 km (0.104 R)
• M12: 9,010,429 km (0.078 R)
• M13: 9,537,014 km (0.047 R)
• M14: 9,982,965 km (0.111 R)
• M15: 10,970,461 km (0.114 R)
• M16: 11,515,595 km (0.083 R)
• M17: 15,375,071 km (0.081 R)
• M18: 16,761,095 km (0.101 R)
• M19: 19,621,107 km (0.101 R)
• M20: 23,232,549 km (0.058 R)
• M21: 23,589,490 km (0.113 R)
• M22: 24,222,887 km (0.098 R)
• M23: 25,054,053 km (0.039 R)
• M24: 33,296,148 km (0.087 R)
• M25: 44,127,333 km (0.099 R)
• M26: 44,950,719 km (0.105 R)
• M27: 47,482,514 km (0.073 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 294.2

Radius: 4.1

Gravity: 17.5 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 5.58 AU - 6.58 AU

Year: 10348 Days

Day: 23.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,879,584 km

• M1: 60,288 km (0.088 R)
• M2: 288,724 km (0.098 R)
• M3: 506,389 km (0.071 R)
• M4: 715,527 km (0.082 R)
• M5: 1,273,078 km (0.075 R)
• M6: 1,999,376 km (0.069 R)
• M7: 2,328,192 km (0.106 R)
• M8: 2,541,967 km (0.114 R)
• M9: 2,768,907 km (0.112 R)
• M10: 4,614,346 km (0.066 R)
• M11: 4,866,269 km (0.094 R)
• M12: 6,098,208 km (0.066 R)
• M13: 6,265,608 km (0.071 R)
• M14: 12,833,253 km (0.112 R)
• M15: 15,576,280 km (0.084 R)
• M16: 16,015,649 km (0.095 R)
• M17: 16,206,536 km (0.113 R)
• M18: 19,905,941 km (0.103 R)
• M19: 21,716,674 km (0.097 R)
• M20: 26,807,190 km (0.12 R)
• M21: 30,059,299 km (0.088 R)
• M22: 31,729,708 km (0.113 R)
• M23: 33,564,676 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 417

Radius: 7.5

Gravity: 7.41 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 4.8 AU - 7.9 AU

Year: 11045 Days

Day: 16.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 66,879,584 km

• M1: 93,798 km (0.094 R)
• M2: 613,501 km (0.082 R)
• M3: 872,305 km (0.07 R)
• M4: 1,460,075 km (0.11 R)
• M5: 1,998,478 km (0.102 R)
• M6: 3,211,567 km (0.079 R)
• M7: 4,476,417 km (0.047 R)
• M8: 4,823,783 km (0.115 R)
• M9: 5,906,722 km (0.052 R)
• M10: 6,289,543 km (0.094 R)
• M11: 7,538,087 km (0.063 R)
• M12: 8,588,115 km (0.116 R)
• M13: 8,943,858 km (0.041 R)
• M14: 9,402,376 km (0.104 R)
• M15: 9,684,966 km (0.109 R)
• M16: 9,924,772 km (0.076 R)
• M17: 10,975,547 km (0.115 R)
• M18: 12,265,081 km (0.047 R)
• M19: 14,076,262 km (0.032 R)
• M20: 14,571,281 km (0.113 R)
• M21: 16,463,096 km (0.055 R)
• M22: 16,874,041 km (0.046 R)
• M23: 18,220,572 km (0.066 R)
• M24: 19,032,140 km (0.115 R)
• M25: 22,857,358 km (0.117 R)
• M26: 24,859,725 km (0.096 R)
• M27: 27,165,777 km (0.086 R)
• M28: 38,175,731 km (0.044 R)
• M29: 42,120,926 km (0.087 R)
• M30: 43,147,915 km (0.056 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 991.6

Radius: 3.5

Gravity: 80.95 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 5.72 AU - 8.94 AU

Year: 13698 Days

Day: 23.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 66,879,584 km

• M1: 43,683 km (0.06 R)
• M2: 167,849 km (0.031 R)
• M3: 278,252 km (0.09 R)
• M4: 446,400 km (0.088 R)
• M5: 586,274 km (0.107 R)
• M6: 1,075,309 km (0.057 R)
• M7: 1,245,552 km (0.105 R)
• M8: 1,359,097 km (0.115 R)
• M9: 1,794,576 km (0.119 R)
• M10: 3,511,960 km (0.072 R)
• M11: 3,653,330 km (0.041 R)
• M12: 4,855,199 km (0.056 R)
• M13: 5,283,647 km (0.115 R)
• M14: 6,464,573 km (0.115 R)
• M15: 7,297,384 km (0.089 R)
• M16: 7,668,387 km (0.1 R)
• M17: 9,333,262 km (0.053 R)
• M18: 11,346,400 km (0.117 R)
• M19: 12,098,279 km (0.106 R)
• M20: 14,408,070 km (0.103 R)
• M21: 14,624,987 km (0.031 R)
• M22: 15,895,522 km (0.058 R)
• M23: 17,482,157 km (0.065 R)
• M24: 18,398,444 km (0.082 R)
• M25: 19,171,416 km (0.09 R)
• M26: 20,235,506 km (0.097 R)
• M27: 22,968,359 km (0.096 R)
• M28: 24,269,412 km (0.1 R)
• M29: 24,782,682 km (0.088 R)
• M30: 25,830,765 km (0.09 R)
• M31: 26,581,746 km (0.115 R)
• M32: 35,563,004 km (0.084 R)
• M33: 41,379,669 km (0.095 R)
• M34: 45,590,400 km (0.078 R)
• M35: 45,901,713 km (0.117 R)
• M36: 49,912,731 km (0.074 R)
• M37: 50,575,450 km (0.078 R)
• M38: 59,917,986 km (0.063 R)
• M39: 64,502,264 km (0.117 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: 197 - 17,575 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit