F-type asteroids are a relatively uncommon type of carbonaceous asteroid, falling into the wider C-group.1
Characteristics
F-type asteroids have spectra generally similar to those of the B-type asteroids, but lack the "water" absorption feature around 3 μm indicative of hydrated minerals, and differ in the low wavelength part of the ultraviolet spectrum below 0.4 μm.
The F-type and B-type asteroids are not distinguishable with the criteria used in the SMASS classification, so in that scheme are grouped together under the B-type.
References
References
- Ridpath, Ian (2018-02-15), Ridpath, Ian (ed.), "F-type asteroid", A Dictionary of Astronomy, Oxford University Press, doi:10.1093/acref/9780191851193.001.0001, ISBN 978-0-19-185119-3, retrieved 2023-10-10
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