1101 Clematis
asteroid
1101 Clematis is an Alauda asteroid from the outermost regions of the asteroid belt, approximately 37 kilometers in diameter. It was discovered on 22 September 1928, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany, and assigned the provisional designation 1928 SJ. It was named for the flowering plant Clematis. The presumably carbonaceous asteroid has a relatively long rotation period of 34.3 hours.
Orbit and classification
Clematis is a member of the Alauda family (902), a large family of typically "bright" carbonaceous asteroids and named after its parent body, 702 Alauda. According to a different study, this object is also the namesake of the Clematis family, a small family of 5–16 asteroids hence they may have arisen from the same collisional event. All members have a relatively high orbital inclination.
It orbits the Sun in the outermost asteroid belt at a distance of 3.0–3.5 AU once every 5 years and 10 months (2,120 days; semi-major axis of 3.23 AU). Its orbit has an eccentricity of 0.08 and an inclination of 21° with respect to the ecliptic.
The body's observation arc begins with its observation as 1963 TG1 at Goethe Link Observatory in October 1963, more than 35 years after its official discovery observation at Heidelberg.
Physical characteristics
Clematis is an assumed carbonaceous C-type asteroids, while the overall spectral type for members of the Alauda family is that of a somewhat brighter B-type.
“1101 Clematis” enters the record as asteroid. Crown Archives preserves that source wording while asking what Clematis and asteroid can confirm, complicate or overturn.
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“1101 Clematis” is worth following because a concise public description often conceals a longer documentary argument. Here, Clematis and asteroid provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 5, 2026. The linked authority identifier is Q135934. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1101, 1928 and 1963.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “1101 Clematis” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.