🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.6

Radius: 12.5

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.68 AU - 0.84 AU

Year: 457 Days

Day: 10.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,840,689 km

• M1: 155,881 km (0.112 R)
• M2: 279,000 km (0.115 R)
• M3: 357,838 km (0.052 R)
• M4: 546,481 km (0.084 R)
• M5: 639,531 km (0.104 R)
• M6: 740,659 km (0.078 R)
• M7: 842,236 km (0.116 R)
• M8: 938,727 km (0.107 R)
• M9: 1,121,834 km (0.112 R)
• M10: 1,257,071 km (0.057 R)
• M11: 1,407,566 km (0.099 R)
• M12: 1,487,601 km (0.101 R)
• M13: 1,642,435 km (0.117 R)
• M14: 1,898,547 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.6

Radius: 14.6

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.77 AU - 1.27 AU

Year: 711 Days

Day: 9.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (47)

Outer Limit: 45,840,689 km

• M1: 182,360 km (0.074 R)
• M2: 294,409 km (0.086 R)
• M3: 500,554 km (0.089 R)
• M4: 659,278 km (0.104 R)
• M5: 751,729 km (0.054 R)
• M6: 843,732 km (0.065 R)
• M7: 963,560 km (0.068 R)
• M8: 1,083,837 km (0.038 R)
• M9: 1,354,160 km (0.111 R)
• M10: 1,476,980 km (0.073 R)
• M11: 1,639,892 km (0.069 R)
• M12: 1,953,449 km (0.026 R)
• M13: 2,125,487 km (0.038 R)
• M14: 2,294,682 km (0.071 R)
• M15: 2,401,794 km (0.101 R)
• M16: 2,493,797 km (0.036 R)
• M17: 2,777,135 km (0.099 R)
• M18: 2,962,935 km (0.11 R)
• M19: 3,125,698 km (0.084 R)
• M20: 3,394,226 km (0.102 R)
• M21: 3,488,622 km (0.086 R)
• M22: 3,603,065 km (0.053 R)
• M23: 3,709,130 km (0.089 R)
• M24: 4,003,837 km (0.092 R)
• M25: 4,184,402 km (0.113 R)
• M26: 4,439,766 km (0.057 R)
• M27: 4,647,707 km (0.11 R)
• M28: 4,784,738 km (0.119 R)
• M29: 4,976,672 km (0.069 R)
• M30: 5,073,612 km (0.051 R)
• M31: 5,247,594 km (0.039 R)
• M32: 5,545,593 km (0.115 R)
• M33: 5,702,372 km (0.091 R)
• M34: 5,997,528 km (0.049 R)
• M35: 6,158,496 km (0.103 R)
• M36: 6,391,120 km (0.112 R)
• M37: 6,925,035 km (0.104 R)
• M38: 7,227,971 km (0.075 R)
• M39: 7,485,728 km (0.092 R)
• M40: 7,734,210 km (0.062 R)
• M41: 7,897,122 km (0.084 R)
• M42: 8,010,667 km (0.118 R)
• M43: 8,418,620 km (0.073 R)
• M44: 8,534,559 km (0.107 R)
• M45: 8,651,095 km (0.118 R)
• M46: 8,742,200 km (0.096 R)
• M47: 8,872,650 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.2

Radius: 12.1

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.91 AU - 1.51 AU

Year: 919 Days

Day: 8.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 45,840,689 km

• M1: 157,527 km (0.072 R)
• M2: 258,954 km (0.113 R)
• M3: 385,813 km (0.118 R)
• M4: 472,879 km (0.077 R)
• M5: 639,680 km (0.086 R)
• M6: 881,281 km (0.06 R)
• M7: 957,426 km (0.092 R)
• M8: 1,049,130 km (0.079 R)
• M9: 1,185,862 km (0.088 R)
• M10: 1,280,558 km (0.112 R)
• M11: 1,358,199 km (0.086 R)
• M12: 1,457,682 km (0.078 R)
• M13: 1,580,502 km (0.073 R)
• M14: 1,669,811 km (0.081 R)
• M15: 1,831,527 km (0.106 R)
• M16: 1,919,939 km (0.077 R)
• M17: 2,021,217 km (0.063 R)
• M18: 2,223,623 km (0.109 R)
• M19: 2,336,270 km (0.066 R)
• M20: 2,463,129 km (0.112 R)
• M21: 2,573,682 km (0.076 R)
• M22: 2,723,878 km (0.069 R)
• M23: 2,870,484 km (0.076 R)
• M24: 3,000,185 km (0.072 R)
• M25: 3,105,353 km (0.111 R)
• M26: 3,185,088 km (0.119 R)
• M27: 3,373,881 km (0.05 R)
• M28: 3,476,655 km (0.064 R)
• M29: 3,552,650 km (0.118 R)
• M30: 3,650,188 km (0.114 R)
• M31: 3,783,929 km (0.071 R)
• M32: 3,876,530 km (0.107 R)
• M33: 4,013,112 km (0.115 R)
• M34: 4,122,169 km (0.12 R)
• M35: 4,358,085 km (0.082 R)
• M36: 4,440,214 km (0.047 R)
• M37: 4,583,230 km (0.068 R)
• M38: 4,697,373 km (0.12 R)
• M39: 4,820,043 km (0.043 R)
• M40: 4,897,385 km (0.1 R)
• M41: 5,014,072 km (0.087 R)
• M42: 5,123,877 km (0.109 R)
• M43: 5,514,327 km (0.066 R)

Asteroid Belt

Center: 1.58 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.2

Radius: 11

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.91 AU - 1.99 AU

Year: 1880 Days

Day: 11.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 45,840,689 km

• M1: 138,827 km (0.09 R)
• M2: 229,633 km (0.11 R)
• M3: 300,692 km (0.066 R)
• M4: 405,261 km (0.116 R)
• M5: 505,192 km (0.059 R)
• M6: 629,957 km (0.097 R)
• M7: 698,772 km (0.083 R)
• M8: 786,735 km (0.098 R)
• M9: 984,055 km (0.115 R)
• M10: 1,188,256 km (0.094 R)
• M11: 1,536,969 km (0.104 R)
• M12: 1,709,604 km (0.098 R)
• M13: 1,792,930 km (0.068 R)
• M14: 2,015,831 km (0.08 R)
• M15: 2,169,468 km (0.069 R)
• M16: 2,266,109 km (0.059 R)
• M17: 2,451,161 km (0.114 R)
• M18: 2,692,911 km (0.109 R)
• M19: 2,764,419 km (0.093 R)
• M20: 2,882,751 km (0.107 R)
• M21: 3,076,929 km (0.068 R)
• M22: 3,234,156 km (0.08 R)
• M23: 3,394,076 km (0.055 R)
• M24: 3,478,599 km (0.109 R)
• M25: 3,578,082 km (0.117 R)
• M26: 4,037,497 km (0.067 R)
• M27: 4,285,680 km (0.088 R)
• M28: 4,523,391 km (0.092 R)
• M29: 4,995,970 km (0.114 R)
• M30: 5,132,853 km (0.081 R)
• M31: 5,451,346 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.1

Radius: 10.4

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.56 AU - 2.4 AU

Year: 1923 Days

Day: 7.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 63.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (59)

Outer Limit: 45,840,689 km

• M1: 129,701 km (0.086 R)
• M2: 199,863 km (0.059 R)
• M3: 294,409 km (0.059 R)
• M4: 394,938 km (0.076 R)
• M5: 467,194 km (0.109 R)
• M6: 628,012 km (0.098 R)
• M7: 738,565 km (0.089 R)
• M8: 886,816 km (0.088 R)
• M9: 1,000,062 km (0.056 R)
• M10: 1,111,662 km (0.101 R)
• M11: 1,186,311 km (0.102 R)
• M12: 1,333,665 km (0.103 R)
• M13: 1,539,811 km (0.091 R)
• M14: 1,616,106 km (0.077 R)
• M15: 2,134,462 km (0.039 R)
• M16: 2,456,846 km (0.078 R)
• M17: 2,564,855 km (0.066 R)
• M18: 2,674,511 km (0.076 R)
• M19: 2,766,962 km (0.114 R)
• M20: 2,841,761 km (0.05 R)
• M21: 3,099,518 km (0.037 R)
• M22: 3,206,630 km (0.106 R)
• M23: 3,305,215 km (0.076 R)
• M24: 3,404,698 km (0.069 R)
• M25: 3,576,287 km (0.078 R)
• M26: 3,699,107 km (0.069 R)
• M27: 3,959,556 km (0.059 R)
• M28: 4,161,663 km (0.096 R)
• M29: 4,334,449 km (0.069 R)
• M30: 4,520,698 km (0.105 R)
• M31: 4,709,640 km (0.076 R)
• M32: 4,776,959 km (0.046 R)
• M33: 4,867,167 km (0.093 R)
• M34: 5,257,019 km (0.114 R)
• M35: 5,444,016 km (0.082 R)
• M36: 5,609,471 km (0.039 R)
• M37: 5,704,765 km (0.104 R)
• M38: 5,800,657 km (0.063 R)
• M39: 5,897,148 km (0.117 R)
• M40: 6,006,205 km (0.103 R)
• M41: 6,189,462 km (0.048 R)
• M42: 6,362,248 km (0.088 R)
• M43: 6,436,897 km (0.104 R)
• M44: 6,574,228 km (0.1 R)
• M45: 6,662,192 km (0.058 R)
• M46: 6,839,315 km (0.102 R)
• M47: 7,005,219 km (0.055 R)
• M48: 7,120,859 km (0.076 R)
• M49: 7,275,992 km (0.084 R)
• M50: 7,367,097 km (0.119 R)
• M51: 7,511,010 km (0.094 R)
• M52: 7,801,379 km (0.061 R)
• M53: 8,230,576 km (0.057 R)
• M54: 8,502,694 km (0.113 R)
• M55: 8,626,112 km (0.111 R)
• M56: 8,847,068 km (0.111 R)
• M57: 9,167,956 km (0.085 R)
• M58: 9,252,329 km (0.102 R)
• M59: 9,635,000 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 86.5

Radius: 7

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 4.84 AU - 6.82 AU

Year: 9717 Days

Day: 23.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 45,840,689 km

• M1: 334,202 km (0.099 R)
• M2: 753,674 km (0.098 R)
• M3: 1,648,120 km (0.111 R)
• M4: 3,131,532 km (0.119 R)
• M5: 3,185,088 km (0.103 R)
• M6: 3,738,750 km (0.078 R)
• M7: 4,065,621 km (0.112 R)
• M8: 5,248,791 km (0.082 R)
• M9: 5,355,604 km (0.068 R)
• M10: 5,614,558 km (0.074 R)
• M11: 6,033,133 km (0.085 R)
• M12: 7,277,039 km (0.053 R)
• M13: 8,025,926 km (0.101 R)
• M14: 8,198,412 km (0.076 R)
• M15: 8,471,877 km (0.06 R)
• M16: 8,748,483 km (0.1 R)
• M17: 8,849,761 km (0.079 R)
• M18: 9,130,407 km (0.088 R)
• M19: 10,496,086 km (0.066 R)
• M20: 10,684,729 km (0.115 R)
• M21: 10,793,038 km (0.084 R)
• M22: 10,956,249 km (0.105 R)
• M23: 12,319,235 km (0.073 R)
• M24: 14,178,288 km (0.12 R)
• M25: 14,267,598 km (0.119 R)
• M26: 14,446,666 km (0.096 R)
• M27: 15,201,088 km (0.113 R)
• M28: 15,782,875 km (0.103 R)
• M29: 16,340,875 km (0.096 R)
• M30: 17,189,843 km (0.119 R)
• M31: 17,635,794 km (0.061 R)
• M32: 18,930,563 km (0.093 R)
• M33: 19,655,664 km (0.071 R)
• M34: 19,722,086 km (0.084 R)
• M35: 19,788,507 km (0.049 R)
• M36: 20,625,358 km (0.06 R)
• M37: 21,337,294 km (0.111 R)
• M38: 22,472,143 km (0.113 R)
• M39: 22,715,389 km (0.085 R)
• M40: 23,344,897 km (0.058 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 736.2

Radius: 8

Gravity: 11.5 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 8.23 AU - 8.37 AU

Year: 16505 Days

Day: 22.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 45,840,689 km

• M1: 200,910 km (0.057 R)
• M2: 307,872 km (0.07 R)
• M3: 370,105 km (0.066 R)
• M4: 473,178 km (0.116 R)
• M5: 567,126 km (0.112 R)
• M6: 819,647 km (0.078 R)
• M7: 1,313,619 km (0.111 R)
• M8: 1,422,377 km (0.108 R)
• M9: 2,104,393 km (0.103 R)
• M10: 2,168,122 km (0.085 R)
• M11: 3,841,225 km (0.056 R)
• M12: 3,919,464 km (0.085 R)
• M13: 4,237,659 km (0.101 R)
• M14: 5,241,760 km (0.063 R)
• M15: 6,224,019 km (0.059 R)
• M16: 6,408,623 km (0.079 R)
• M17: 7,554,094 km (0.114 R)
• M18: 7,701,747 km (0.109 R)
• M19: 7,800,631 km (0.116 R)
• M20: 8,049,861 km (0.096 R)
• M21: 8,251,220 km (0.085 R)
• M22: 8,454,075 km (0.091 R)
• M23: 8,916,781 km (0.083 R)
• M24: 9,493,331 km (0.068 R)
• M25: 10,028,144 km (0.037 R)
• M26: 10,244,761 km (0.109 R)
• M27: 11,126,641 km (0.119 R)
• M28: 11,407,137 km (0.03 R)
• M29: 12,147,646 km (0.034 R)
• M30: 12,205,241 km (0.099 R)
• M31: 13,554,913 km (0.059 R)
• M32: 14,582,800 km (0.082 R)
• M33: 14,705,321 km (0.094 R)
• M34: 14,889,775 km (0.078 R)
• M35: 16,139,217 km (0.083 R)
• M36: 16,329,655 km (0.057 R)
• M37: 16,905,008 km (0.052 R)
• M38: 17,162,915 km (0.068 R)
• M39: 17,617,393 km (0.109 R)
• M40: 17,878,741 km (0.106 R)
• M41: 17,944,414 km (0.106 R)
• M42: 18,670,861 km (0.098 R)
• M43: 19,004,315 km (0.104 R)
• M44: 19,541,820 km (0.042 R)
• M45: 19,677,057 km (0.079 R)
• M46: 20,152,628 km (0.105 R)
• M47: 20,838,535 km (0.042 R)
• M48: 20,976,613 km (0.086 R)
• M49: 22,445,066 km (0.096 R)
• M50: 23,227,313 km (0.058 R)
• M51: 23,298,971 km (0.112 R)
• M52: 24,308,607 km (0.074 R)
• M53: 24,526,720 km (0.095 R)
• M54: 25,553,710 km (0.108 R)
• M55: 26,072,366 km (0.103 R)
• M56: 27,271,093 km (0.053 R)
• M57: 27,573,431 km (0.102 R)
• M58: 28,105,550 km (0.04 R)
• M59: 28,948,235 km (0.08 R)
• M60: 29,566,523 km (0.11 R)
• M61: 29,955,029 km (0.106 R)
• M62: 30,894,503 km (0.055 R)
• M63: 31,684,829 km (0.077 R)
• M64: 34,829,825 km (0.097 R)
• M65: 35,817,470 km (0.068 R)
• M66: 36,730,765 km (0.096 R)
• M67: 36,981,192 km (0.12 R)
• M68: 38,157,330 km (0.062 R)
• M69: 40,632,278 km (0.053 R)
• M70: 41,064,316 km (0.098 R)
• M71: 41,497,851 km (0.092 R)
• M72: 42,194,528 km (0.094 R)
• M73: 42,807,281 km (0.066 R)
• M74: 45,287,913 km (0.096 R)
• M75: 47,723,666 km (0.045 R)
• M76: 47,814,771 km (0.03 R)
• M77: 48,179,490 km (0.074 R)
• M78: 48,911,622 km (0.116 R)
• M79: 51,316,558 km (0.085 R)
• M80: 51,689,954 km (0.09 R)
• M81: 51,876,951 km (0.112 R)
• M82: 52,721,431 km (0.033 R)
• M83: 53,759,640 km (0.07 R)
• M84: 54,044,026 km (0.073 R)
• M85: 57,785,618 km (0.065 R)
• M86: 58,076,736 km (0.063 R)
• M87: 58,758,304 km (0.087 R)
• M88: 58,953,529 km (0.106 R)
• M89: 59,540,401 km (0.089 R)
• M90: 59,638,388 km (0.082 R)
• M91: 60,325,940 km (0.072 R)
• M92: 63,602,432 km (0.088 R)
• M93: 63,702,663 km (0.108 R)
• M94: 64,204,414 km (0.038 R)
• M95: 65,717,447 km (0.076 R)
• M96: 67,548,675 km (0.107 R)
• M97: 68,470,497 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 198.4

Radius: 7.4

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 6.72 AU - 10.46 AU

Year: 17378 Days

Day: 19 Hours

Environment

Temp: -230 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 45,840,689 km

• M1: 96,191 km (0.077 R)
• M2: 152,141 km (0.08 R)
• M3: 329,714 km (0.026 R)
• M4: 471,832 km (0.067 R)
• M5: 1,166,265 km (0.098 R)
• M6: 1,389,465 km (0.078 R)
• M7: 1,560,455 km (0.08 R)
• M8: 1,806,843 km (0.089 R)
• M9: 1,993,691 km (0.101 R)
• M10: 2,041,562 km (0.119 R)
• M11: 2,310,988 km (0.115 R)
• M12: 2,514,142 km (0.104 R)
• M13: 3,047,458 km (0.069 R)
• M14: 3,327,057 km (0.106 R)
• M15: 3,821,178 km (0.074 R)
• M16: 4,153,286 km (0.084 R)
• M17: 5,303,693 km (0.068 R)
• M18: 5,370,414 km (0.116 R)
• M19: 5,639,840 km (0.1 R)
• M20: 5,879,346 km (0.094 R)
• M21: 6,017,724 km (0.07 R)
• M22: 6,332,927 km (0.045 R)
• M23: 6,546,104 km (0.054 R)
• M24: 6,761,674 km (0.045 R)
• M25: 7,310,549 km (0.117 R)
• M26: 7,459,399 km (0.065 R)
• M27: 8,529,173 km (0.107 R)
• M28: 8,764,640 km (0.099 R)
• M29: 9,362,583 km (0.111 R)
• M30: 10,097,557 km (0.1 R)
• M31: 10,555,775 km (0.092 R)
• M32: 10,808,596 km (0.096 R)
• M33: 11,020,726 km (0.081 R)
• M34: 11,320,220 km (0.07 R)
• M35: 11,839,624 km (0.035 R)
• M36: 12,322,676 km (0.032 R)
• M37: 12,767,430 km (0.117 R)
• M38: 13,489,988 km (0.096 R)
• M39: 14,040,508 km (0.066 R)
• M40: 14,179,185 km (0.113 R)
• M41: 14,645,183 km (0.118 R)
• M42: 14,927,175 km (0.108 R)
• M43: 15,639,859 km (0.063 R)
• M44: 16,607,458 km (0.088 R)
• M45: 18,195,439 km (0.079 R)
• M46: 18,701,679 km (0.114 R)
• M47: 19,007,457 km (0.092 R)
• M48: 19,417,953 km (0.078 R)
• M49: 20,614,287 km (0.098 R)
• M50: 20,772,113 km (0.108 R)
• M51: 21,460,413 km (0.111 R)
• M52: 22,102,637 km (0.078 R)
• M53: 22,588,231 km (0.097 R)
• M54: 23,515,289 km (0.073 R)
• M55: 24,066,408 km (0.099 R)
• M56: 24,454,764 km (0.115 R)
• M57: 26,085,530 km (0.103 R)
• M58: 26,655,947 km (0.12 R)
• M59: 27,519,276 km (0.056 R)
• M60: 27,809,197 km (0.12 R)
• M61: 28,684,644 km (0.105 R)
• M62: 29,096,337 km (0.096 R)
• M63: 32,398,411 km (0.114 R)
• M64: 32,643,153 km (0.108 R)
• M65: 32,949,978 km (0.1 R)
• M66: 33,319,335 km (0.107 R)
• M67: 33,566,471 km (0.102 R)
• M68: 33,690,188 km (0.115 R)
• M69: 33,875,989 km (0.083 R)
• M70: 34,435,784 km (0.089 R)
• M71: 34,998,721 km (0.053 R)
• M72: 35,249,746 km (0.072 R)
• M73: 38,309,621 km (0.073 R)
• M74: 39,348,429 km (0.047 R)
• M75: 40,199,192 km (0.086 R)
• M76: 41,387,149 km (0.101 R)
• M77: 41,453,420 km (0.108 R)
• M78: 43,123,381 km (0.115 R)
• M79: 43,258,019 km (0.104 R)
• M80: 45,224,483 km (0.057 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 155 - 11,570 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit