Triton
| Mean Distance from Neptune | 354,760 km (220,438 miles) |
| Orbital Period around Neptune | 5.87685 Earth days |
| Mean Diameter | 2700 km (1678 miles) |
| Year Discovered | 1846 |
Nereid
| Mean Distance from Neptune | 5,513,400 km (3,425,868 miles) |
| Orbital Period around Neptune | 360.1362 Earth days |
| Mean Diameter | 340 km (211.3 miles) |
| Year Discovered | 1949 |
Naiad
| Mean Distance from Neptune | 48,200 km (29,950 miles) |
| Orbital Period around Neptune | 0.294396 Earth days |
| Mean Diameter | 58 km (36.04 miles) |
| Year Discovered | 1989 |
Thalassa
| Mean Distance from Neptune | 50,000 km (31,069 miles) |
| Orbital Period around Neptune | 0.311485 Earth days |
| Mean Diameter | 80 km (49.7 miles) |
| Year Discovered | 1989 |
Despina
| Mean Distance from Neptune | 52,600 km (32,684 miles) |
| Orbital Period around Neptune | 0.334655 Earth days |
| Mean Diameter | 148 km (92 miles) |
| Year Discovered | 1989 |
Galatea
| Mean Distance from Neptune | 62,000 km (38,525 miles) |
| Orbital Period around Neptune | 0.428745 Earth days |
| Mean Diameter | 158 km (98.2 miles) |
| Year Discovered | 1989 |
Larissa
| Mean Distance from Neptune | 73,600 km (45,733 miles) |
| Orbital Period around Neptune | 0.554654 Earth days |
| Mean Diameter | 193 km (119.9 miles) |
| Year Discovered | 1989 |
Proteus
| Mean Distance from Neptune | 117,600 km (73,073 miles) |
| Orbital Period around Neptune | 1.122315 Earth days |
| Mean Diameter | 418 km (259.7 miles) |
| Year Discovered | 1989 |
Halimede
| Mean Distance from Neptune | 15,730,000 km (9,774,168 miles) |
| Orbital Period around Neptune | 1879.7 Earth days |
| Mean Diameter | 30 km (18.64 miles) |
| Year Discovered | 2002 |
Sao
| Mean Distance from Neptune | 22,420,000 km (13,931,142 miles) |
| Orbital Period around Neptune | 2914.1 Earth days |
| Mean Diameter | 20 km (12.42 miles) |
| Year Discovered | 2002 |
Laomedeia
| Mean Distance from Neptune | 23,570,000 km (14,645,718 miles) |
| Orbital Period around Neptune | 3167.9 Earth days |
| Mean Diameter | 20 km (12.42 miles) |
| Year Discovered | 2002 |
Psamathe
| Mean Distance from Neptune | 46,700,000 km (29,018,034 miles) |
| Orbital Period around Neptune | 9115.9 Earth days |
| Mean Diameter | 20 km (12.42 miles) |
| Year Discovered | 2003 |
Neso
| Mean Distance from Neptune | 48,390,000 km (30,068,151 miles) |
| Orbital Period around Neptune | 9374 Earth days |
| Mean Diameter | 30 km (18.64 miles) |
| Year Discovered | 2002 |
S/2004 N1
| Mean Distance from Neptune | 105,300 km (65,430 miles) |
| Orbital Period around Neptune | 0.95 Earth days |
| Mean Diameter | 36 km (22.37 miles) |
| Year Discovered | 2004 |
Original images located on various NASA websites including: http://photojournal.jpl.nasa.gov/index.html and http://nssdc.gsfc.nasa.gov/photo_gallery/