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Rhushikesh-Canisminor

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About Rhushikesh-Canisminor

  • Rank
    Nebula
  • Birthday 15/07/93

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  • Gender
    Male
  • Location
    Mumbai
  1. Need tips for solar outreach events

    Hello! So I need little bit help to make my solar outreach events better. Usually most of my solarsolevents events have been for schools and little bit for general public But now I am going more towards college students and arranging events specific for solar observation. (It used to be more like complimentary with night sky observations) Since I am not a science student (learning physics by myself only), I don't have exact idea about what topics should I cover in theory. (Also what should I learn as well) Usually I take a projected image of the sun using my 90mm refractor and do H-alpha observation using my Lunt 50mm telescope. As for theory, I cover little bit about nuclear fusion, sun as a magnet, little bit about solar spectrum. If time allows then I refer Sun's images like magnetogram and all to have a better idea. Any suggestions would be helpful! Because it looks like I am still the only one here taking H-alpha observationsobservation. P.s. I will be putting up this question in solarchat as well. But more help will be better! Thanks! EDIT : currently I am thinking about adding a small radio telescope. Also, looking out for something to make so that I can see the solar spectrum much better.
  2. Hello! So I have been an amateur astronomer since last few years and now I see that so many people have asking me about general telescope suggestions. (Guess the next step will be helping to set up small observatories...Ah dreams!) We don't have many telescope brands available. The major brands that are available here are Meade, orion, celestron and skywatcher. The confusion starts to rise when the other party is interested in little larger scopes like 8 inch sct or 12 inch reflector with eq mount or dobsonian mount. Would like to know overall experience that you guys have had with these brands like optical tubes, mount, eyepiece etc. Sort of like "this is good, this is not so good" type. For e.g. I have used celestron 6 inch sct, 12 inch (sort of) sct and 102mm short tube refractor. Although I love their optics, I haven't had good experience with their mounts. Meade : Used their 8 inch sct with fork mount (and liked it). Used their 90 mm refractor and didn't like it much. Skywatcher has given balanced performance overall. Decent mount, decent optics, decent supplied eyepiece etc. Also, on the same topic, I am quite confused with how much importance does having a good telescope dealer has. As in we do have many dealers here, but many times I have experienced things like overpriced scopes, no decent guidance etc. If I suggest just one dealer with whom I hadam good experience then it looks like biased opinion.
  3. LOOP PROMINANCE!

    I know I am being a bad person but I am praying to let that Sunspot group just go away... We still have our monsoon season going on here and I have missed all the action! *my telescopes cry with me*
  4. Equinox

    Many times people ask me this question during sessions. Although I am not that great with answering using technical terms and explanation. I try to explain it using a torch (or a candle) and my hand. Just raise your thumb (Like you are giving a thumbs up) and extend your pinky finger. The tip of the Thumb is north pole and tip of your pinky finger is south pole. (You can do it using a ball...Just hold it in two fingers...upper one is your north pole and lower finger is south pole.) Then tilt it roughly to match the 23.5 degree. And now just go around the torchlight like earth. (Or candle...light source is the sun and your hand is the earth) (given that you used a ball held using two fingers) The point where your lower finger does not receive torchlight is summer solstice.(short nights in northern hemisphere) When your upper finger is not receiving any light, it is winter solstice. (Longer nights in northern hemisphere) These two point will be 180 degrees apart and 90 degrees from each point, you will have your solstice. (Would have explained much better with photos if I were not travelling) With reference to previous comments in this topic, you will get the idea. I guess the main problem is that we can't directly think in 3D so it's tough to visualize in our mind. For audience questions, you can do this right at the spot. Hope this helped!
  5. Amateurs-involvement in Solar Research????

    Anybody involved in Amateur Solar Research???(If there exists such thing!) Or any astrophysicist into solar? Would like to know about the instruments, process and well what exactly can be done overall... Reason why I am asking is that I recently saw on internet about an observatory (mainstream) in India having 6 inch scopes equipped with filters and if any projects are possible, they will be helpful for me. Thanks in advance! Never mind if it's a stupid question. EDIT: I did try to contact respective people but didn't get any proper reply.
  6. As we have our monsoon season going on, sky's total cloudy from June to October. But surprisingly, we got little bit of clear sky, enough to observe the Partial Lunar Eclipse. This was my first eclipse to see through my telescope. Following are the photos of the eclipsed moon through clouds. P.s. I am not a photography person so Never mind for poor quality work. Instrument- skywatcher 90mm f/10 refractor and cellphone camera. *telescope goes back to hibernation* Happy monsoon!
  7. DIY refractor for solar projection questions

    Thanks for all updates! Actually the idea came in my mind after looking at Sun spotter scope design. I am not a great fan of using film or glass filter for white light as I have seen things going wrong. Projection method is really good if I am having a large number of audience and it's a pain to close the telescope after every few minutes because of heat. Sun gun design uses only 60mm. The UV/IR filter suggestion by moonshane is kinda interesting. Idea was to have a refractor on motor driven mount and if I am having a good sunspot then I will use the zoom eyepiece to observe it. On similar note,I have a small doubt. Maybe everyone is having a 60mm lenses with high f ratio because the longer f ratio will increase the image size and reduce the heat problem?
  8. DIY refractor for solar projection questions

    Hello! My friend and I are trying to make a DIY refractor based telescope which will be used only for solar projection as our personal monsoon project. We don't have any specific plan yet but roughly this is the idea : suppose an 80mm achromat f/10 (or similar) with a zoom eyepiece attached to a Sun funnel. (Or similar) My major concern is the heat build up in the scope. I use my 90mm f/10 refractor for solar projection and within 15 min I can sense the heat built up inside. Any ideas or suggestions on this? Are there any specific coatings which can work for heat reduction? Any thoughts are welcome! P.S. I am from Mumbai region and summer temperature does rise up to 40+ degree Celsius. Also,I don't want to have a telescope smaller than 70-80mm aperture.
  9. Quark questions!

    I was quite positive to take the quark risk (?) Till you pointed this out. Now back to square 1. xD I will kind of start looking for price of the whole unit over here. Let's see how everything goes. -_-*
  10. Quark questions!

    Also, the reason why I am just digging deep in these doubts is that I am trying to have a tie up with Government to have observations for rural areas. So while I will pitch the idea to authorities, I have to be pretty clear with the instrument. If it were just me then I would have bought the quark by now.
  11. Quark questions!

    One of the many reasons why I thought about full aperture ERF. In my town, Winter daytime temperature doesn't drop below 20 degree Celsius. In summer, it goes all the way up to 40+ (it's 43 degree Celsius right now). And I don't have much clue how the UV/IR filter would work in this heat.
  12. Quark questions!

    That's almost impossible over here in my case. And well even I am not totally comfortable with the quark because of many bad reviews from customers. But it is pretty cost effective than a lunt 80 double stack. -_-*
  13. Quark questions!

    Hello! So I know this has been asked many times but it's still kind of confusing. Any comments on this 'next hopeful addition in my gear' will be helpful. 120mm f/5 achromat + Quark chromo + full aperture ERF. It will be used mostly for visual (around 90% of time) and for outreach programme. I might have to be looking for funding/loan for this upgrade in upcoming season. I already have lunt50mm SS and I might double stack it also. Thanks in advance!
  14. Heads up : New AR

    It does look like things will be interesting in few days. Finally we have something to see! I have a public session (and few demos) in two days and I was worried about what am I gonna show!
  15. Heads up : New AR

    New active region coming in from eastern limb...looks kind of happening! *grabs a chair for action*
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