Two beginner questions
- Jnicholes
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Two beginner questions
I have two beginner questions. One is simple, the other is a little more complicated.
I was out last night, attempting to photograph Mars and Venus with my telescope set up, the only difference being I was using an Orion Starshoot USB camera and a 3x Barlow. When I was trying to get a picture of Mars, I was noticing that I would get a lot of atmospheric interference. It was very “wavy.“ It’s very hard to describe. However, this has not happened with any other planet. I was able to get pictures of Jupiter and Saturn just fine with the same set up, but I’m always having problems with Mars.
Any idea what’s causing this issue? My setup has not changed at all. The only difference is I am using a 3X Barlow, and a Starshoot USB camera from Orion. It could be that I’m using a cheap camera, but I don’t know.
Second question. When I photographed Venus, I noticed that it was almost like a waxing or waning gibbous moon. It wasn’t a full circle. I guess I’ve never really noticed it before, because I used my phone most often as a camera.
Simple question, does Venus have phases?
Here’s a picture of what I am talking about.
If anyone can help me with these questions, I would appreciate it. If you need more data, I can get it for you.
Jared.
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- Bigzmey Online
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Re: Two beginner questions
What you described with Mars is bad seeing, where the image at high powers get distorted by atmospheric turbulence. Seeing can fluctuate day to day or even minute to minute. Also different portions of sky can have different amount of air turbulence.
It has nothing to do with Mars specifically. Also, as Mars moving away from opposition it gets smaller and it is harder to resolve surface details.
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Re: Two beginner questions
Thank you also for pointing out the fact about Venus. I appreciate it.
Jared
25mm plossl Eyepiece
Goto mount
Iphone 11 Nightcap app Camera
"Our minds are finite, and yet even in these circumstances of finitude we are surrounded by possibilities that are infinite, and the purpose of life is to grasp as much as we can out of that infinitude."
Alfred North Whitehead
- Lady Fraktor
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Re: Two beginner questions
The lower it is the more atmosphere you are viewing through.
See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
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Re: Two beginner questions
The next good opposition is not until 2033. The 2 oppositions before it will be better than average.
On the other hand, following the phases of Venus will be great over the next few weeks. The disc size will increase as it gets close to Earth and the phase with shrink to a thin crescent. With few hours of darkness for those of us who live far north of the equator, Venus will be an evening target in twilight and be a good alternative target when only the moon would be visible or it is in the morning sky.
- Chich
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Re: Two beginner questions
https://www.cleardarksky.com/csk/
There is a legend page which explains what is presented, 'Seeing' that Bigzmey mentioned is one of the items
https://www.cleardarksky.com/c/WnrObAZkey.html?1
An example of the one for my general location:
Keep calm and set SCE To AUX
Wildland fire: a strong tradition since 440,000,000 BCE
NEW for 345,000,000 BCE - Crown fires!
- John Baars Online
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Re: Two beginner questions
GrabnGo on Alt/AZ : *SW Startravel 102 F/5 refractor( widefield, Sun, push-to), *OMC140 Maksutov F/14.3 ( planets).
Most used Eyepieces: *Panoptic 24, *Morpheus 14, *Leica ASPH zoom, *Zeiss barlow, *Pentax XO5.
Commonly used bino's : *Jena 10X50 , * Canon 10X30 IS, *Swarovski Habicht 7X42, * Celestron 15X70, *Kasai 2.3X40
Rijswijk Public Observatory: * Astro-Physics Starfire 130 f/8, * 6 inch Newton, * C9.25, * Meade 14 inch LX600 ACF, *Lunt.
Amateur astronomer since 1970.
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