All Questions
Tagged with betelgeuse observational-astronomy
7
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What can be learned by observing tumbling asteroid 319 Leona passing in front of Betelgeuse's fickle photocenter? What campaigns have been organized?
There's a lot of interest in Betelgeuse party because of it's recent fainting behavior, and despite being so close, the huge uncertainty in it's distance due to its fickle photocenter:
Can New ...
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Can New Horizons be used to measure the distance to Betelgeuse (despite its fickle photocenter)?
The New Horizons spacecraft is almost 50 AU from Earth and near-simultaneous images taken by its telescope and one on Earth have demonstrated parallax without relying on the movement of Earth in it's ...
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How is the roll of the Hubble telescope around its axis and the dispersive direction(s) of it's spectrometer(s) managed?
Reading Dupree et al. 2020 Spatially Resolved Ultraviolet Spectroscopy of the Great Dimming of Betelgeuse (also in arXiv and summarized in Phys.org's Hubble finds that Betelgeuse's mysterious dimming ...
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Why does Stellarium tell such imprecise distance for Betelgeuse? [duplicate]
The newest version of Stellarium, as well as the former ones, tell that Betelgeuse would be 497.95 ly plus/minus 56 ly away. Celestia also lists Betelgeuse ~500 ly away, but Celestia is comparably old....
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What will it finally take to accurately measure the distance to Betelgeuse?
Comments below What is the maximum distance measurable with parallax? discuss challenges associated with parallax measurements of Betelgeuse and link to Wikipedia’s Betelgeuse; Distance measurements ...
- 30.7k
4
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What equipment and techniques were used to study Betelgeuse's diameter in 1920?
Comments below What is the maximum distance measurable with parallax? discuss challenges associated with parallax measurements of Betelgeuse and link to Wikipedia’s Betelgeuse; Distance measurements ...
- 30.7k
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Betelgeuse problem
I've been given this problem:
(a) A telescope is required to image an area of the sky of angular size 1 arc second onto a 10 mm square CCD. What focal length must the telescope mirror have to fully ...
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