The planet Neptune

From Ashburn , Neptune will become visible around 18:20 (EST) as the dusk sky fades, 33° above your south-western horizon. It will then sink towards the horizon, setting at 21:33.
Name
Neptune
|
Object Type
Superior Planet
|
Constellation: | Aquarius |
Magnitude: | 7.93 (V) [1] |
Absolute mag (H): | -6.87 [1] |
Slope parameter (n): | 2.00 [1] |
Right ascension: | 23h19m [2] |
Declination: | -05°31' [2] |
Distance: | 30.51 AU 253.76 lightmin [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° |
Perihelion: | 29.81 AU |
Aphelion: | 30.33 AU |
Orbital period: | 164.88 years |
[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 |
All times shown in Ashburn local time.
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 |
01 Sep 2023 | – Lunar occultation of Neptune |
19 Sep 2023 | – Neptune at opposition |
19 Dec 2023 | – Lunar occultation of Neptune |