Determing distances on the fly

  • Thread starter psychemage
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In summary, there is no quick and easy way to calculate distances from stellar objects in just 1 to 5 seconds without the use of multiple telescopes. The most commonly used method is through the use of "standard candles," such as Cepheid variables or certain types of supernovas, but even these have limitations in accurately measuring distant objects. The next potential method, gamma ray bursters, has been observed at distances up to z~6.5. Overall, precise measurements are necessary to determine the distance to stars.
  • #1
psychemage
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Atronomy and Cosmology aren't quite my thing. Anyone think/know of a way to calculate distances from stellar objects, particularly stars, on the fly (ie. from 1 to 5 sec) that doesn't require two telescopes a kilometer apart? I don't much care for parallax (please ignore my spelling). Thank you so much in adnvance to whom ever replies.


~Nick
 
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  • #2
Anyone have any suggestions? Anything would be appreciated... thanks again
 
  • #3
'Standard candles' are usually relied upon for determining distances, especially those beyond the sensititivity of the parallax method [which is quite accurate but severely limited in range]. The first 'standard candles' [objects that have the same absolute brightness] were Cepheid variables. These, however, are too faint to be resolved beyond local galaxies. Certain, very bright types of supernova [SNe 1a in particular] are currently the most useful standard candles. We can approximate fairly distant objects [up to z~1.7] by this method. Gamma ray bursters appear to be the best candidate for the next generation of standard candles. They have been observed at distances up to z~6.5 - which is a quite a chunk of real estate.
 
  • #4
So, no, there is no simple, 5-second method to calculate the distance to stars. It requires precise measurements.
 

1. How do scientists determine distances on the fly?

Scientists use a variety of instruments and techniques to determine distances on the fly. These can include GPS devices, rangefinders, lasers, and photogrammetry. They also rely on mathematical calculations and triangulation methods to accurately measure distances.

2. What is the importance of determining distances on the fly?

Determining distances on the fly is crucial in many scientific fields, such as astronomy, geology, and cartography. It allows scientists to make real-time measurements and observations, which is essential for gathering accurate data and making informed decisions.

3. What challenges do scientists face when determining distances on the fly?

One of the main challenges scientists face when determining distances on the fly is the accuracy of their instruments and methods. Environmental factors such as weather conditions and terrain can also affect the accuracy of measurements. Additionally, human error and limitations in technology can also present challenges.

4. How do scientists account for the Earth's curvature when determining long distances on the fly?

When determining long distances on the fly, scientists must take into consideration the curvature of the Earth. They use mathematical equations and formulas to correct for this curvature and ensure accurate measurements. They may also use specialized instruments, such as theodolites, to account for the Earth's curvature.

5. Can determining distances on the fly be done with precision?

Yes, determining distances on the fly can be done with a high degree of precision. However, the level of precision may vary depending on the instruments and methods used, as well as external factors. Scientists often use multiple methods and cross-check their measurements to increase the accuracy and precision of their distance calculations.

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