128 Nemesis (Asteroid)
Finder chart
Click and drag the chart above to pan around the sky, or use the mouse wheel to zoom.
Click to enlarge.
From Cambridge , 128 Nemesis is not observable – it will reach its highest point in the sky during daytime and is no higher than 20° above the horizon at dawn.
Begin typing the name of a town near to you, and then select the town from the list of options
which appear below.
|
Name
128 Nemesis
|
Object type
Asteroid
|
Current position
| Computed for: | 15 April 2026 |
| Right ascension: | 19h22m [1] |
| Declination: | −23°33' [1] |
| Constellation: | Sagittarius |
| Magnitude: | 12.98 (V) [1] |
| Distance: | 2.55 AU 21.17 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 2.75 AU |
| Eccentricity: | 0.127006 |
| Inclination: | 6.25° |
| Longitude ascending node: | 76.16° |
| Argument of perihelion: | 302.81° |
| Epoch of elements: | 21 Nov 2025 |
| Mean Anomaly at epoch: | 231.89° |
| Absolute mag (H): | 7.67 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.40 AU |
| Aphelion: | 3.10 AU |
| Orbital period: | 4.56 years |
Visibility from Cambridge
All times shown in Cambridge local time.