The planet 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
| Constellation: | Aquarius |
| 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 |
| 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
| 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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