Light Delay to Neptune

Data valid as of Oct. 24, 2026, 2:01 a.m.

Light Delay to Neptune

One-way light delay: 4 hours, 1 minutes, 11.00 seconds

Distance (AU)
2.900e+01
Distance (km)
4.338e+09
Distance (light years)
4.586e-04

Neptune is currently 2.900e+01 AU away from Earth.

Technical coordinate details

Earth

Galactic Longitude
145d43m23.85760239s
Galactic Latitude
-48d40m07.66795702s
Distance from Solar System Barycenter
0.991266444861054 AU
GCRS RA
0d00m16.15942175s
GCRS Dec
0d00m07.00402219s
GCRS Distance
0.0 AU
GCRS Obstime
2026-10-24 02:01:49.792239

Neptune

Galactic Longitude
102d09m14.334667s
Galactic Latitude
-61d26m37.89073815s
Distance from Solar System Barycenter
29.876672106486577 AU
GCRS RA
2d17m34.36532197s
GCRS Dec
-0d33m03.91325813s
GCRS Distance
28.999717759755608 AU
GCRS Obstime
2026-10-24 02:01:49.792239