🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.55 AU - 0.61 AU

Year: 285 Days

Day: 15.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 37.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,344,537 km

• M1: 675,734 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.6

Radius: 14.1

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.52 AU - 0.84 AU

Year: 362 Days

Day: 10.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,344,537 km

• M1: 175,478 km (0.109 R)
• M2: 625,319 km (0.114 R)
• M3: 1,395,299 km (0.109 R)
• M4: 2,021,516 km (0.117 R)
• M5: 2,584,453 km (0.026 R)
• M6: 3,319,577 km (0.075 R)
• M7: 3,850,649 km (0.106 R)
• M8: 4,327,268 km (0.06 R)
• M9: 5,132,105 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.4

Radius: 11.6

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.84 AU - 2.58 AU

Year: 2121 Days

Day: 13.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,344,537 km

• M1: 144,661 km (0.076 R)
• M2: 554,111 km (0.117 R)
• M3: 1,139,487 km (0.08 R)
• M4: 1,552,377 km (0.054 R)
• M5: 2,029,445 km (0.09 R)
• M6: 2,545,857 km (0.034 R)
• M7: 4,200,110 km (0.071 R)
• M8: 4,620,031 km (0.05 R)
• M9: 5,948,011 km (0.088 R)
• M10: 6,617,163 km (0.085 R)
• M11: 8,233,568 km (0.099 R)
• M12: 9,448,452 km (0.063 R)
• M13: 11,249,610 km (0.067 R)
• M14: 11,815,539 km (0.036 R)
• M15: 12,315,645 km (0.099 R)
• M16: 15,225,772 km (0.115 R)
• M17: 18,566,143 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834

Radius: 11.9

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.55 AU - 3.85 AU

Year: 3696 Days

Day: 9.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,344,537 km

• M1: 153,039 km (0.112 R)
• M2: 675,434 km (0.071 R)
• M3: 2,021,516 km (0.061 R)
• M4: 2,457,893 km (0.11 R)
• M5: 3,028,758 km (0.073 R)
• M6: 3,686,840 km (0.094 R)
• M7: 4,532,965 km (0.111 R)
• M8: 5,753,385 km (0.055 R)
• M9: 7,214,507 km (0.102 R)
• M10: 8,536,354 km (0.113 R)
• M11: 9,490,190 km (0.101 R)
• M12: 10,095,762 km (0.092 R)
• M13: 11,030,300 km (0.106 R)
• M14: 11,654,572 km (0.105 R)
• M15: 13,771,082 km (0.11 R)
• M16: 15,907,190 km (0.106 R)
• M17: 17,409,003 km (0.099 R)
• M18: 19,129,678 km (0.065 R)
• M19: 19,706,228 km (0.103 R)
• M20: 23,923,691 km (0.096 R)
• M21: 24,818,885 km (0.089 R)
• M22: 26,203,413 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.2

Radius: 12.7

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 5.22 AU - 6.48 AU

Year: 9136 Days

Day: 13.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 68,344,537 km

• M1: 164,857 km (0.072 R)
• M2: 633,996 km (0.083 R)
• M3: 1,151,604 km (0.065 R)
• M4: 2,501,725 km (0.119 R)
• M5: 3,154,720 km (0.092 R)
• M6: 3,555,193 km (0.104 R)
• M7: 4,460,111 km (0.09 R)
• M8: 5,220,816 km (0.064 R)
• M9: 5,877,850 km (0.057 R)
• M10: 7,106,946 km (0.072 R)
• M11: 8,262,889 km (0.119 R)
• M12: 9,240,960 km (0.097 R)
• M13: 10,803,809 km (0.068 R)
• M14: 11,623,605 km (0.086 R)
• M15: 12,432,780 km (0.049 R)
• M16: 14,447,564 km (0.033 R)
• M17: 14,851,927 km (0.094 R)
• M18: 15,263,920 km (0.103 R)
• M19: 15,926,638 km (0.075 R)
• M20: 17,245,343 km (0.117 R)
• M21: 19,115,018 km (0.088 R)
• M22: 20,895,681 km (0.1 R)
• M23: 21,637,986 km (0.07 R)
• M24: 23,175,403 km (0.056 R)
• M25: 23,730,261 km (0.102 R)
• M26: 25,448,393 km (0.1 R)
• M27: 26,552,874 km (0.106 R)
• M28: 27,248,205 km (0.114 R)
• M29: 29,684,855 km (0.099 R)
• M30: 30,623,133 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 253

Radius: 3.3

Gravity: 23.23 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.68 AU - 6.54 AU

Year: 9752 Days

Day: 18.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 68,344,537 km

• M1: 40,990 km (0.113 R)
• M2: 179,368 km (0.062 R)
• M3: 283,937 km (0.119 R)
• M4: 410,646 km (0.1 R)
• M5: 614,398 km (0.081 R)
• M6: 971,339 km (0.095 R)
• M7: 1,368,671 km (0.074 R)
• M8: 2,301,563 km (0.116 R)
• M9: 3,160,255 km (0.065 R)
• M10: 3,570,452 km (0.061 R)
• M11: 3,683,997 km (0.054 R)
• M12: 3,870,845 km (0.076 R)
• M13: 4,627,960 km (0.081 R)
• M14: 5,069,872 km (0.119 R)
• M15: 5,242,508 km (0.116 R)
• M16: 5,815,468 km (0.081 R)
• M17: 6,133,363 km (0.079 R)
• M18: 7,521,033 km (0.109 R)
• M19: 8,730,681 km (0.091 R)
• M20: 9,062,789 km (0.099 R)
• M21: 9,489,591 km (0.103 R)
• M22: 10,897,906 km (0.047 R)
• M23: 11,776,494 km (0.034 R)
• M24: 13,562,842 km (0.053 R)
• M25: 15,282,320 km (0.104 R)
• M26: 15,582,264 km (0.029 R)
• M27: 22,130,911 km (0.092 R)
• M28: 24,665,248 km (0.105 R)
• M29: 25,663,365 km (0.092 R)
• M30: 25,832,261 km (0.077 R)
• M31: 28,096,574 km (0.118 R)
• M32: 28,366,000 km (0.067 R)
• M33: 30,206,652 km (0.105 R)
• M34: 30,489,542 km (0.101 R)
• M35: 32,223,531 km (0.049 R)
• M36: 32,815,789 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 703.7

Radius: 4

Gravity: 43.98 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 7.06 AU - 10.5 AU

Year: 16798 Days

Day: 21.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 68,344,537 km

• M1: 50,714 km (0.041 R)
• M2: 434,881 km (0.066 R)
• M3: 913,594 km (0.072 R)
• M4: 1,379,143 km (0.08 R)
• M5: 1,968,409 km (0.104 R)
• M6: 2,481,829 km (0.12 R)
• M7: 2,829,793 km (0.12 R)
• M8: 3,316,435 km (0.077 R)
• M9: 3,738,301 km (0.099 R)
• M10: 4,038,843 km (0.089 R)
• M11: 4,290,766 km (0.107 R)
• M12: 4,722,356 km (0.079 R)
• M13: 6,398,451 km (0.11 R)
• M14: 7,461,942 km (0.087 R)
• M15: 7,649,837 km (0.114 R)
• M16: 9,109,164 km (0.097 R)
• M17: 9,652,503 km (0.082 R)
• M18: 9,819,754 km (0.079 R)
• M19: 11,350,439 km (0.039 R)
• M20: 11,979,199 km (0.07 R)
• M21: 12,172,330 km (0.11 R)
• M22: 12,630,997 km (0.067 R)
• M23: 13,169,250 km (0.08 R)
• M24: 13,374,947 km (0.102 R)
• M25: 14,654,458 km (0.058 R)
• M26: 17,045,481 km (0.108 R)
• M27: 20,406,945 km (0.061 R)
• M28: 24,596,583 km (0.078 R)
• M29: 31,107,232 km (0.099 R)
• M30: 34,365,174 km (0.099 R)
• M31: 35,016,673 km (0.066 R)
• M32: 40,096,119 km (0.05 R)
• M33: 44,404,538 km (0.05 R)
• M34: 46,432,187 km (0.079 R)
• M35: 50,336,243 km (0.105 R)
• M36: 60,661,637 km (0.11 R)
• M37: 61,803,967 km (0.096 R)
• M38: 62,573,498 km (0.092 R)
• M39: 65,118,607 km (0.082 R)
• M40: 67,731,782 km (0.078 R)
• M41: 68,139,885 km (0.108 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 522 - 13,113 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit