To: Mark17
Betelgeuse is actually only 430 light years away.
9 posted on
02/10/2020 10:51:39 PM PST by
jmacusa
("If wisdom is not the Lord, what is wisdom?)
To: jmacusa; Mark17
>>Betelgeuse is actually only 430 light years away.
<<
Oh, then we damn well should panic.
18 posted on
02/10/2020 10:58:37 PM PST by
freedumb2003
("DonÂ’t mistake activity for achievement." - John Wooden)
To: jmacusa
Betelgeuse is actually only 430 light years away.That changes everything. In 270 years I could be really old.
36 posted on
02/11/2020 12:22:45 AM PST by
Louis Foxwell
(A deep and terrible ignorance born of abject corruption is required to hate our president.)
To: jmacusa
Betelgeuses distance was initially measured by the parallax effect it had on Earth. Two observations, taken on either end of Earths orbit, would subtend an angle that can yield the distance. It started in 1920, when the first interferometric studies were performed, the stars distance equated to 180 light-years. A lot of other measurements have estimated its distance to be as high as 1300 light-years. In the 1990s there were two conflicting measurements. One, where the parallax was determined to be π=9.8±4.7 mas and the other, where the parallax was determined to be π=5±4 mas . The first one suggested a distance of 330 light-years; whereas, the second one suggested a distance of 650 light-years. In 2008, the VLA[1] produced a solution of 643±146 ly ; although this value has a 22% error, the accepted distance is approximately 642 light-years.
52 posted on
02/11/2020 3:26:40 AM PST by
PIF
(They came for me and mine ... now its your turn)
To: jmacusa
62 posted on
02/11/2020 4:38:29 AM PST by
central_va
(I won't be reconstructed and I do not give a damn.)
To: jmacusa
642.5 light years, says Wikipedia.
67 posted on
02/11/2020 5:19:42 AM PST by
Campion
((marine dad))
To: jmacusa
Wikipedia has it at 642.53, but what’s a few light-years among friends?
83 posted on
02/11/2020 8:35:30 AM PST by
Hebrews 11:6
(Do you REALLY believe that (1) God IS, and (2) God IS GOOD?)
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