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Douglas Rollain

M20 Trifid Nebula in LRGBHa

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Posts Made By: Ansuman Pal

May 15, 2007 04:53 PM Forum: Off Topic Discussions

Urban heat islands & global warming

Posted By Ansuman Pal

Sunlight constitute a lot of IR (not sure what’s the %) that heats the environment.
The roofing material that you are suggesting needs to reflect IR. Because of Global worming or politically correct “Climate change” and deforestation changing the landscape, increasing the area of desert around the globe! One would expect that the sand mostly light in color will reflect sunlight! Also it looses heat quickly. One would expect that will cause the cooling effect! It will unless the material used reflects the same wavelength as it receives. To me still it will be a drop in ocean as most of the countries around the globe uses clay (some form) , concrete for roofing!

May 25, 2007 01:26 PM Forum: CCD Imaging and Processing/Deep Sky

M13 with MX7C

Posted By Ansuman Pal

Nice shot and thank you for posting.
I have a MX516, still learning to get details from the cluster core!

-Ansuman.

May 26, 2007 03:47 PM Forum: CCD Imaging and Processing/Deep Sky

M3 Reworked

Posted By Ansuman Pal

Looks NICE Larry!

July 7, 2007 07:04 PM Forum: Off Topic Discussions

Hot Gasoline Dispensing

Posted By Ansuman Pal

Joe,
I didn't know that there are ongoing lawsuits but it's a common fact to me that most pump owners increase temperature more than the recommended over the year. I am aware that in winter it’s recommended just to avoid freezing caused by moisture contamination. There is also another trick that most applies; it’s to charge first 10-25cents faster than the gas pumped out each time you start the pump.
There are also some pumps flow tuning tricks (not really known to me how) that makes the pump meter go faster. I have noticed it long time and hence avoid certain pump stations and also certain pumps within a station.

August 19, 2007 04:10 AM Forum: CCD Imaging and Processing/Deep Sky

My imaging rig

Posted By Ansuman Pal

Floyd,just curious, are you using the same battery for the laptop or it’s own battery?
I have noticed mine runs out in 1 ½ hour or so from the beginning.

September 8, 2007 02:43 PM Forum: Digital SLR AstroPhotography

I got a new 20Da camera

Posted By Ansuman Pal

I am no expert but after comparing some of mine, if grouping into batches and then recombining Average method worked better than Median. For a single group Median seems to be good enough! I noticed it makes the image background little darker but again I loose some of the very finer details.
I was earliar using Mx516 and after receiving birthday gift from my wife the cd: A Guide to Astrophotography With Digital SLR Camares” by Jerry Lodriguss, turned to 20D. I am not sure one has to follow blindly but it gives a starting point.


September 10, 2007 01:43 AM Forum: CCD Imaging and Processing/Deep Sky

Veil with the venerable Orion ST120

Posted By Ansuman Pal

Great!!!!!!
I couldn't imagine one can get that image from ST120!
WoW!

September 15, 2007 06:28 PM Forum: Digital SLR AstroPhotography

Cepheus IC1396

Posted By Ansuman Pal

Looks nice smile
Looking forward to see some more nice once !

-Ansuman.

September 21, 2007 02:40 AM Forum: Digital SLR AstroPhotography

NGC 1499

Posted By Ansuman Pal

Pretty Cool! Stars are quite tight! I have been trying using my unmodified 20d and nowhere close!
Good Job!

September 23, 2007 01:25 PM Forum: Digital SLR AstroPhotography

M13 with 20D

Posted By Ansuman Pal

M15 from Last night after struggling with tracking on my CG5(old) mount. Taken using Canon20D(Unmod) 22X20sec stacked in MaxDSLR & reprocessing little on Paint.Net, cropped.