Venus Feb 28 2020

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Dragonsfire Canada
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Venus Feb 28 2020

#1

Post by Dragonsfire »


Nut much their besides shape, need to try out the dif filters I have to see if I can get any details.
XT8i, ASI120mc, UV/IR cut filter.
Venus.png
Venus.png (190.43 KiB) Viewed 2360 times
Neil
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ES 82* 11mm, 18mm 2", ES 68* 24mm, 6mm, 25mm Ortho. EP, Televue 3X Barlow,CS lens 2.8mm-12mm F1.4
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Re: Venus Feb 28 2020

#2

Post by Makuser »


Hello again Neil. You did a nice job here with your Venus image. As to getting any surface markings of Venus, this usually requires large telescopes beyond the range of most amateur equipment and are in excellent seeing locations. Also, the filters commonly used are quite pricey and have a very low transmission factor, which make the target quite dim. Most amateurs are happy with a nice crisp capture, although some over time track the different phases of Venus and put together a dandy collage picture. Always popular are the nightscape photos, with Venus as the main attraction. I hope this helps Neil, and thanks for sharing your work with us on here.
Marshall
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Re: Venus Feb 28 2020

#3

Post by Dragonsfire »


Thanks, noticed the filter is about $400, V filter. Will experiment next chance I get. Looks like clouds/rain/snow for the next week lol.
Neil
Orion XT8i Dob, ES AR102
9x50 RACI Finder, TELRAD Reflex Sight, Electro Dot Sight RD400X
Agena SWA 38mm 70 FOV 2" EP, Orion 25+10mm Sirius Plossl 52 FOV EP
ES 82* 11mm, 18mm 2", ES 68* 24mm, 6mm, 25mm Ortho. EP, Televue 3X Barlow,CS lens 2.8mm-12mm F1.4
Filters Baader Continuum, UV/IF cut, Lumicon UHC, DGM OIII. ND5/3.8 Kendrick
GX1 Lumix, E-PM2, ASI224mc, SteadyPix Deluxe, iOptron SkyTracker 7.7lb
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Re: Venus Feb 28 2020

#4

Post by Michael Barbieri »


I Dragon. If yuo want to take some Venus clouds don't use a uv/ir cut. The band transmissione of Venus clouds ar uv band and with yuor filter yuo are cut them. there are two possibility, one is use a w47 filter with BG40 (go on my blog for mmore info viewtopic.php?f=70&t=7710), the second is use a UV pass filter (Baader U for example). Your telescope is good, the real problem of yuor setup is the asi 120MC. For venus clouds you need a monocromathic camera. In any case don't overexpose the planet. Remenber that you have to stay at 180 ADU on the histogram (little less for Venus becouse has a very brillant edge). For yuo is better a Baader U filter.
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Re: Venus Feb 28 2020

#5

Post by Dragonsfire »


Thanks!
Not going to pay for those filters though being over $400 a piece. so see what happens :)
Neil
Orion XT8i Dob, ES AR102
9x50 RACI Finder, TELRAD Reflex Sight, Electro Dot Sight RD400X
Agena SWA 38mm 70 FOV 2" EP, Orion 25+10mm Sirius Plossl 52 FOV EP
ES 82* 11mm, 18mm 2", ES 68* 24mm, 6mm, 25mm Ortho. EP, Televue 3X Barlow,CS lens 2.8mm-12mm F1.4
Filters Baader Continuum, UV/IF cut, Lumicon UHC, DGM OIII. ND5/3.8 Kendrick
GX1 Lumix, E-PM2, ASI224mc, SteadyPix Deluxe, iOptron SkyTracker 7.7lb
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Re: Venus Feb 28 2020

#6

Post by Michael Barbieri »


Baader U venus --> 200€ (31,8)
W47 plus BG40 --> 90€ (31,8)
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Re: Venus Feb 28 2020

#7

Post by Dragonsfire »


Neil
Orion XT8i Dob, ES AR102
9x50 RACI Finder, TELRAD Reflex Sight, Electro Dot Sight RD400X
Agena SWA 38mm 70 FOV 2" EP, Orion 25+10mm Sirius Plossl 52 FOV EP
ES 82* 11mm, 18mm 2", ES 68* 24mm, 6mm, 25mm Ortho. EP, Televue 3X Barlow,CS lens 2.8mm-12mm F1.4
Filters Baader Continuum, UV/IF cut, Lumicon UHC, DGM OIII. ND5/3.8 Kendrick
GX1 Lumix, E-PM2, ASI224mc, SteadyPix Deluxe, iOptron SkyTracker 7.7lb
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Re: Venus Feb 28 2020

#8

Post by Michael Barbieri »


yuo need a 31,8 baader U not a 2". I taked BG40 from same seller. Is very good. but remember, with a MC will be very difficult take some clouds, maybe imposible.
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