The planet Neptune

Image of Neptune
© NASA/Voyager 2
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From Fairfield , Neptune is not observable – it will reach its highest point in the sky during daytime and is no higher than 3° above the horizon at dawn.

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Name Neptune
Object Type Superior Planet
Current Position
Constellation:Aquarius
Magnitude:7.95 (V) [1]
Absolute mag (H):-6.87 [1]
Slope parameter (n):2.00 [1]
Right ascension:-1h-29m [2]
Declination:-04°13' [2]
Distance:30.68 AU
255.12 lightmin [2]
Orbital Elements [2]
Semi-major axis:30.07 AU
Eccentricity:0.008586
Inclination:1.77°
Longitude ascending node:131.72°
Argument of perihelion:-86.75°
Epoch of elements:01 January 2000
Mean Anomaly at epoch:259.91°
Derived quantities
Perihelion:29.81 AU
Aphelion:30.33 AU
Orbital period:164.88 years
Sources
[1] Robin M. Green, Spherical Astronomy, 1985, ISBN 0-521-31779-7
[2] Explanatory Supplement to the Astronomical Almanac. 1992. K. P. Seidelmann, Ed., p.316
Visibility from Fairfield

All times shown in Fairfield local time.

Events
25 Jun 2021  –  Neptune enters retrograde motion
14 Sep 2021  –  Neptune at opposition
01 Dec 2021  –  Neptune ends retrograde motion
13 Mar 2022  –  Neptune at solar conjunction
28 Jun 2022  –  Neptune enters retrograde motion
16 Sep 2022  –  Neptune at opposition
03 Dec 2022  –  Neptune ends retrograde motion
15 Mar 2023  –  Neptune at solar conjunction
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73.26°W
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