Betelgeuse still brighter in IR
Taken by Eliot Herman on February 1, 2020 @
Tucson AZ
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Camera Used: NIKON CORPORATION NIKON D7100
Exposure Time: 6/1
Aperture: f/2.5
ISO: 2500
Date Taken: 2020:02:01 20:03:27
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Details:
Betelgeuse is bright in near IR. It still looks bright compared to other stars such as Bellatrix and the Belt of Orion stars. This is a 3.5 min of exposure constructed from a stack of 6 sec exposures @ iso 2500. The camera is a Lifepixel modified Nikon D7100 for 830 nm cutoff (IR only no visible light) that likely extends the range close to 1000 nm. The camera was mounted on a tracking mount.
My current impression is Betelguese might be proportionately dimmer in NIR than it was two weeks ago using the same photographic technique.
Photographer's website:
No URL provided.
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