I was able to image Venus again on Friday, about 27-28 hours before conjunction, when it was about 5.5 degrees from the sun. The seeing was below average, but quite a bit better than on Wednesday. All were taken with an Explore Scientific 127ED refractor and no cameras were melted (!).
#1 2.5x Powermate and Celestron Skyris 445 color camera;
#2 4x Powermate with mono Grasshopper camera and Baader near IR (>685nm) filter;
#3 4x Powermate with Grasshopper and nIR filter - longer exposure and inverted to better see the partial ring caused by atmospheric (Venus') refraction.
There is not a complete ring - it's too far from the sun for that. It looks like about 270 degrees. Note also the brighter area of the crescent at about the 5 o'clock position and the asymmetry of the refracted ring. I've seen these reported by others so they are apparently real - I guess indicating non-uniformities in Venus' clouds??
Kevin
Venus from Friday Jan 7
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Re: Venus from Friday Jan 7
Wow!! superb! I really like the inverted as it shows the crescent better, well done
Alexandra
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Re: Venus from Friday Jan 7
Three excellent captures of Venus Kevin.
The refracted ring really does show very well and any Venusian atmospheric-clouds would likely be the cause...
Thanks for sharing
Terry
The refracted ring really does show very well and any Venusian atmospheric-clouds would likely be the cause...
Thanks for sharing
Terry
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Re: Venus from Friday Jan 7
Very good indeed! Thanks for sharing!
http://brierleyhillsolar.blogspot.co.uk/
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Re: Venus from Friday Jan 7
Excellent captures Kevin
Brian
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Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM