Hi, So this question came into my head after viewing Ashmeet's image of Jupiter. I'm sure there is a limit till which we can improve the image quality (signal...
Message from Dennis Stone, President, World Space Week Association: World Space Week, October 4-10, 2008 is approaching quickly. But it's not too late to join...
http://picasaweb.google.com/naveen.nanjundappa/Planets/photo#5239937967171685122 The image is now uploaded :) thanks, Naveen [Non-text portions of this message...
probably because with a single pic stacked upon itself, you're amplifying both signal and noise, and the end result is just the pic itself? ... [Non-text...
... I think so too. I'm sorry I missed Dr. Suresh's earlier reply while sorting out some ... Thank you sir. The tough part was that I was not able to control...
I can understand that u not having a crosshair(unless u made one) pole alignment would have been difficult. U need have pressed the trigger for the shots,...
Hi Let me take a shot at this. Noise is an interesting concept and in my limited experience with radio and infrared imaging I have had time to wonder about it...
Brilliant Tanmoy u got the concept very right Shot noise or photon noise is the square root of the signal, so to reduce noise by half u have to expose 4x...
Hello Continuing on our discussion of stacking and noise, we come to the worst spoiler of the shows: Background Noise This is the most challenging and...
... Jupiter. ... quality (signal to noise... is it called?) by stacking multiple shots. What is this limit. How can we quantify that? And can we put a number ...
Well Tanmoy addressed and explained almost all of the issues abt noise . What is possibly let out is the world of color photography and the role of optics. ...
yesterday i took a photo of moon and venus with india gate. there was a huge traffic jam there so mercury and mars were not visible due to pollution.. link ...
Hi Tanmoy and Sanath, Beautiful treatise given by Tanmoy and here is my understanding of the same put in a way that I also can also easily follow-)(without...
Thanks Tanmoy, Ajay, Sanath, Suresh and Jayant for the explanations. Simple Poisson statistics demonstrate how the signal improves by $/sqrt(n)$ if there are n...
Dear Mr.Naveen, Kindly check your photo again. Also see mine. I feel, your photo shows venus, & mars - to its south / left of the photopgraph. Above them...
Dear atish, Thats great one on either side of India gate! humn... ... From: atish <atish2k8@...> Subject: [Astronomy_Activities_2009] photo of moon and...
Hi From IIT Madras astronomy club, by Prasanna, inspired by Naveen L N :) http://www.astro.iitm.ac.in/Home/?q=node/19 Great shot Naveen. Very scenic in all...
Friends, I just saw those lovely pictures for the three planets on Bangalore landscape. Congrats! I have a suggestion to make. Take a picture from a fix...
Hi! Next year is the International Year of Astronomy. I hope to make a small contribution towards this by going on a “Telescopes of India” tour. I plan to...
Dr.Anand. I did look at these planets thro my telescope and binocular to confirm them on that day. I have uploaded a image from stellarium for that day and...
Dear group, I used the opportunity last night to pursue the transit of exoplanet HD 209458b in Pegasus. This exoplanet is particularly interesting since it is...
Wow the conversation is going real deep. Well just for a quick errata the scattering is higher with lower wavelength and not what i had typed out in the last...
Hi Suresh, Glad to learn it was of interest. There are many (!) variables stars and which vary for a variety of reasons. Just to give you an idea, check out...
Dear Anthony, This, I find to be so truly inspiring! Accessible science for the non professional - even if the equipment required is still quite sophisticated...
Hi Rath, I should clarify matters so as not to mislead you in any way. (1) My AP160/f7. 5 refractor is a very sought-after telescope due to very long waiting...
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