astronomy

GSC 02652-01324

GSC 02652-01324 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 GSC 02652-01324 rather than just read about it. In short: GSC 02652-01324, also known as V672 Lyrae, is an orange dwarf main sequence star approximately 521 light-years away in the constellation of Lyra (the Lyre). It hosts one known exoplanet, TrES-1b.

Key takeaways

GSC 02652-01324 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect GSC 02652-01324 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of GSC 02652-01324 from memory before moving on to harder problems.

Reference excerpt

GSC 02652-01324, also known as V672 Lyrae, is an orange dwarf main sequence star approximately 521 light-years away in the constellation of Lyra (the Lyre). It hosts one known exoplanet, TrES-1b. There is a small, cool companion star at a separation of 13.2 arcseconds, corresponding to 2111 AU.

Nomenclature The designation GSC 02652-01324 comes from the Guide Star Catalog. The star is sometimes called TrES-1, in reference to its planet discovered by the Trans-Atlantic Exoplanet Survey (TrES). The discovery paper and the SIMBAD database use this designation for the planet itself, but other sources call the star TrES-1 and the planet TrES-1b, following the standard exoplanet naming convention. Since the planet transits the star, the star is classified as a planetary transit variable and has received the variable star designation V672 Lyrae. The transits last a little over an hour, about 4% of the orbital period, and the brightness diminishes by a few hundredths of a magnitude.

Planetary system In 2004, the exoplanet TrES-1b was found to be orbiting this star by the Trans-Atlantic Exoplanet Survey using the transit method. The planet was detected crossing its parent star using a small 4-inch-diameter (100 mm) telescope. The discovery was confirmed by the Keck Observatory using the radial velocity method, allowing its mass to be determined. The planet is a hot Jupiter, with a mass and size similar to those of Jupiter but an orbital period of only three days. Evidence of a candidate second planet, designated TrES-1c, was found in 2025 by the radial velocity method. If existing, this planet would have a minimum mass about that of Saturn, and an eccentric orbit with a 1,200-day period. An additional planet in the system is suspected due to transit-timing variations (TTVs) of TrES-1b, but has not been detected. For a planet causing the observed TTVs to remain undetected, it would need to have a mass less than ~0.25 MJ and an orbital period less than ~7 days. Other than the TTVs, there is as yet no evidence of such a planet, but the observed TTVs cannot be explained by other known effects.

Illustrations

Worked examples

Example 1 — a first encounter with GSC 02652-01324

Start with the simplest possible case. Write down what GSC 02652-01324 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 GSC 02652-01324 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 GSC 02652-01324 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 GSC 02652-01324

In research: GSC 02652-01324 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 GSC 02652-01324 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: GSC 02652-01324 is common in secondary-school and first-year university syllabi. It links to neighbouring topics K-type main-sequence stars, Lyra, Objects with variable star designations, so understanding it makes those chapters shorter.
In everyday life: Look for GSC 02652-01324 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 GSC 02652-01324 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what GSC 02652-01324 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 GSC 02652-01324 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is GSC 02652-01324 in simple terms?

GSC 02652-01324, also known as V672 Lyrae, is an orange dwarf main sequence star approximately 521 light-years away in the constellation of Lyra (the Lyre). It hosts one known exoplanet, TrES-1b.

Why does GSC 02652-01324 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 GSC 02652-01324?

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 GSC 02652-01324.