The planet Neptune

Image of Neptune
© NASA/Voyager 2
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From Cambridge , Neptune is visible in the morning sky, becoming accessible around 22:15, when it rises to an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 01:51, 41° above your southern horizon. It will be lost to dawn twilight around 04:50, 27° above your south-western horizon.

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Name Neptune
Object Type Superior Planet
Current Position
Constellation:Aquarius
Magnitude:7.82 (V) [1]
Absolute mag (H):-6.87 [1]
Slope parameter (n):2.00 [1]
Right ascension:23h15m [1]
Declination:-05°54' [1]
Distance:28.97 AU
240.92 lightmin [1]
Orbital Elements [1]
Semi-major axis:30.27 AU
Eccentricity:0.006851
Inclination:1.77°
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
Source
[1] Robin M. Green, Spherical Astronomy, 1985, ISBN 0-521-31779-7
Events
10 Sep 2019  –  Neptune at opposition
27 Jan 2020  –  Close approach of Venus and Neptune
11 Sep 2020  –  Neptune at opposition
14 Sep 2021  –  Neptune at opposition
27 Apr 2022  –  Close approach of Venus and Neptune
16 Sep 2022  –  Neptune at opposition
19 Sep 2023  –  Neptune at opposition
29 Apr 2024  –  Close approach of Mars and Neptune
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Cambridge

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42.38°N
71.11°W
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