astronomy

Kilodegree Extremely Little Telescope

Kilodegree Extremely Little Telescope is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Kilodegree Extremely Little Telescope rather than just read about it. In short: The Kilodegree Extremely Little Telescope (or KELT) is an astronomical observation system formed by two robotic telescopes that are conducting a survey for transiting exoplanets around bright stars. The project is jointly administered by members of Ohio State University Department of Astronomy, the Vanderbilt University Department of Physics and Astronomy Astronomy Group, the Lehigh University Department of Physics…

Key takeaways

Kilodegree Extremely Little Telescope belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Kilodegree Extremely Little Telescope to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Kilodegree Extremely Little Telescope from memory before moving on to harder problems.

Reference excerpt

The Kilodegree Extremely Little Telescope (or KELT) is an astronomical observation system formed by two robotic telescopes that are conducting a survey for transiting exoplanets around bright stars. The project is jointly administered by members of Ohio State University Department of Astronomy, the Vanderbilt University Department of Physics and Astronomy Astronomy Group, the Lehigh University Department of Physics, and the South African Astronomical Observatory (SAAO).

KELT Telescopes KELT consists of two telescopes, KELT-North in Arizona in the United States, and KELT-South at the SAAO observing station near Sutherland, South Africa. Each KELT telescope consists of a wide field (26 degrees × 26 degrees) medium format telephoto lens with a 4.2 cm aperture, mounted in front of a 4k × 4k Apogee CCD. Each can also be equipped with an alternative narrower field (10.8 degrees × 10.8 degrees) lens with a 7.1 cm aperture for a narrow angle campaign mode. KELT-North uses an Apogee AP16E camera, while KELT South uses an Apogee U16M. The optical assemblies and cameras are mounted on Paramount ME mounts manufactured by Software Bisque. The telescopes were made with off-the-shelf components, and were thus much cheaper than many observatories.

KELT-North is located at Winer Observatory in southeastern Arizona, about an hour's drive from Tucson. KELT-North was installed at Winer in 2005, and operated continuously until 2022, with occasional interruptions for equipment failures and poor weather. KELT-North was decommissioned in 2022. KELT-South is located at the Sutherland astronomical observation station owned and operated by SAAO, about 370 kilometers (230 mi) North of Cape Town. KELT-South was deployed at Sutherland in 2009.

Goals KELT is dedicated to discovering transiting exoplanets orbiting stars in the apparent magnitude range of 8 < V < 10. This is the region just fainter than the set of stars comprehensively surveyed for planets by the radial-velocity surveys, but brighter than those typically observed by most transit surveys.

Operations Both KELT telescopes operate by sequentially observing a series of predefined fields around the sky all night, every night when the weather is good. All recordings are made with 150-second exposures, optimized to observe stars in the target magnitude range.

Discoveries KELT has made several exoplanet discoveries and at least one brown dwarf (which may be an extremely massive Super-Jupiter instead) to date. Yellow rows in the table below indicate the planet is contained in a binary system.

Exoplanets

Brown dwarfs In addition, the survey has discovered brown dwarfs like KELT-1b.

References

External links KELT-North survey website Archived 2019-01-24 at the Wayback Machine KELT-South survey website

Worked examples

Example 1 — a first encounter with Kilodegree Extremely Little Telescope

Start with the simplest possible case. Write down what Kilodegree Extremely Little Telescope claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Kilodegree Extremely Little Telescope before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Kilodegree Extremely Little Telescope ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Kilodegree Extremely Little Telescope

In research: Kilodegree Extremely Little Telescope appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Kilodegree Extremely Little Telescope in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Kilodegree Extremely Little Telescope is common in secondary-school and first-year university syllabi. It links to neighbouring topics Exoplanet search projects by small telescope, Optical telescopes, so understanding it makes those chapters shorter.
In everyday life: Look for Kilodegree Extremely Little Telescope outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Kilodegree Extremely Little Telescope in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Kilodegree Extremely Little Telescope means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Kilodegree Extremely Little Telescope out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Kilodegree Extremely Little Telescope in simple terms?

Why does Kilodegree Extremely Little Telescope matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Kilodegree Extremely Little Telescope?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Kilodegree Extremely Little Telescope.