Asteroid 7 iris at opposition mid january 2022.
Currently at peak brightness at magnitude 7.7
Above image consists of 50 individual frames of 1 minute each, stacked together. When doing this al stationary objects (the stars in the image) remain at exactly the same position in each of the 50 images and therefore remain a point source of light. If an object creates a line instead of a point, this object is moving. The line in the image shows the actual movement of the asteroid 7 Iris currenlty visible in the constellation Gemini during a period of 50 minutes.
The included animated GIF shows the actual movement in an animation created from several images each taken 10 minutes apart.
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Object info
| Name | 7 Iris |
| Type | Asteroid |
| Discovered | 1847 |
| Diameter | 200 km |
| Minor planet category | Main belt |
| Aphelion | 2.93 AU |
| Perihelion | 1.83 AU |
| Orbital period | 3.68 y |
| Rotation period | 7.13h |
| Spectral type | S-type asteroid |
| Abs. magnitude | 5.51 |
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