Re: Venus visible in daylight



"MichaelJP" <mjp@xxxxxxxxxx> wrote in message news:t5mOi.758033$Bo7.160624@xxxxxxxxxxxxxxxxxxxxxxxxx

"Mike Dworetsky" <platinum198@xxxxxxxxxxxxxxxxxxxx> wrote in message news:DZOdnV4hrYivD5vaRVnyvQA@xxxxxxxxx
"MichaelJP" <mjp@xxxxxxxxxx> wrote in message news:WGoNi.38188$TR1.24369@xxxxxxxxxxxxxxxxxxxxxxxxx

"Mike Dworetsky" <platinum198@xxxxxxxxxxxxxxxxxxxx> wrote in message news:dLSdnRddMPXVQpjanZ2dneKdnZydnZ2d@xxxxxxxxx
It is hardly news to those who read uk.sci.astronomy, but this morning the sky is unusually clear and blue, so I went out just before sunrise and marked a position where Venus was lined up with a chimney, then looked again 40 minutes later. Venus is easy to see in a clear blue sky as long as you know approximately where to look. Clearly visible and bright, at 0740, well after sunrise this morning 5 October. Just looked again at 0750, still there despite having the Sun shining directly on me.

Earlier, I went out and saw an impressive line-up of planets and waning crescent Moon, with bright and very orange Mars high up near Castor and Pollux, brilliant Venus, and fainter Saturn. Predictions suggest we are in for a few clear days and nights, so grab 'em.

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Mike Dworetsky

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I was looking for Andromeda (the galaxy) last night through 10x50 binoculars.

I could definitely see it but it was very faint, would I need to use a telescope to discern the disk structure or just dark skies?



You would need to take a long exposure (3-4 mins) with a CCD using a telescope of at least 6-inches aperture. You would need to have a larger format CCD to take in enough galaxy to see the spiral arms, or a focal reducer, or both.

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Mike Dworetsky

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OK, thanks for the tips.

Looks like it was pretty futile trying to see the disk with the binoculars then!


You would be able to see the inner region around the nucleus as a fuzzy elongated blob, brighter at the centre and fading out. Features further out would be too faint to see this way. With binoculars I doubt that you could see the dust lanes or spiral arms, which is what I took you to mean by "seeing the disk". (Maybe you could just manage to do this with very large binoculars in a very dark site.)

--
Mike Dworetsky

(Remove pants sp*mbl*ck to reply)

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Relevant Pages

  • Venus visible in daylight
    ... It is hardly news to those who read uk.sci.astronomy, but this morning the sky is unusually clear and blue, so I went out just before sunrise and marked a position where Venus was lined up with a chimney, then looked again 40 minutes later. ...
    (uk.sci.astronomy)
  • Re: Venus visible in daylight
    ... Venus is easy to see in a clear blue ... sky as long as you know approximately where to look. ... and bright, at 0740, well after sunrise this morning 5 October. ... binoculars then! ...
    (uk.sci.astronomy)
  • Re: Venus visible in daylight
    ... Venus is easy to see in a clear blue sky ... bright, at 0740, well after sunrise this morning 5 October. ... really big scope to see individual stars, or resort to some CCD photography. ...
    (uk.sci.astronomy)
  • Re: Venus visible in daylight
    ... Venus is easy to ... see in a clear blue sky as long as you know approximately where to ... Clearly visible and bright, at 0740, well after sunrise ... Even more interesting is that I was wearing prescription sunglasses. ...
    (uk.sci.astronomy)
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