solar system
asteroid
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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.
Other / older versions :
Image information:
Object info
Name: 7 Iris
Type: asteroid
Constellation: n/a
Perihelion/Aphelion: 1.83 and 1.93 AU (1 AU = 149.6 million km)
Orbital period: 3.68 yr
Dimensions: 200 km
Discovered: 1847
Date & location
Date: January 13, 2022
Location: Landgraaf, The Netherlands
Equipment & optics
Total integration: 50 min
Camera: SBIG ST-8300M
Optics: TMB/LOMO 80/480
Mount: Losmandy G-11 Gemini
Image comments