The planet Neptune

Image of Neptune
© NASA/Voyager 2
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From Fairfield , Neptune is visible in the evening sky, becoming accessible around 17:36 (EST) as the dusk sky fades, 42° above your southern horizon. It will then reach its highest point in the sky at 17:53, 42° above your southern horizon. It will continue to be observable until around 21:25, when it sinks below 22° above your south-western horizon.

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Name Neptune
Object Type Superior Planet
Current Position
Magnitude:7.89 (V) [1]
Absolute mag (H):-6.87 [1]
Slope parameter (n):2.00 [1]
Right ascension:23h08m [1]
Declination:-06°35' [1]
Distance:29.91 AU
248.76 lightmin [1]
Orbital Elements [1]
Semi-major axis:30.27 AU
Longitude ascending node:131.80°
Argument of perihelion:225.27°
Epoch of elements:15 January 1985
Mean Anomaly at epoch:-84.81°
Derived quantities
Perihelion:30.07 AU
Aphelion:30.48 AU
Orbital period:166.58 years
[1] Robin M. Green, Spherical Astronomy, 1985, ISBN 0-521-31779-7
08 Mar 2020  –  Neptune at solar conjunction
11 Sep 2020  –  Neptune at opposition
10 Mar 2021  –  Neptune at solar conjunction
14 Sep 2021  –  Neptune at opposition
13 Mar 2022  –  Neptune at solar conjunction
16 Sep 2022  –  Neptune at opposition
15 Mar 2023  –  Neptune at solar conjunction
19 Sep 2023  –  Neptune at opposition
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