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Astrophotography and Sketching >> Solar System Imaging & Processing

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GreatGigInTheSky
sage


Reged: 02/06/11

Loc: Santa Clara, California
Jupiter, 11/24 from Silicon Valley
      #5537863 - 11/24/12 09:18 PM Attachment (44 downloads)

From last night's haul. I filled the hard drive while fighting dew the whole evening. I decided I have to do something more predictable about that than pulling out the wife's hair dryer, so a DewBuster and a DewNot strip is on the way.

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GreatGigInTheSky
sage


Reged: 02/06/11

Loc: Santa Clara, California
Re: Jupiter, 11/24 from Silicon Valley new [Re: GreatGigInTheSky]
      #5537864 - 11/24/12 09:19 PM Attachment (35 downloads)

One more.

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DesertRat
Post Laureate
*****

Reged: 06/18/06

Loc: Valley of the Sun
Re: Jupiter, 11/24 from Silicon Valley new [Re: GreatGigInTheSky]
      #5537907 - 11/24/12 09:53 PM

Good work Jeff! I hope your wife's hair dryer is quieter than my wifes! At 2am its a frightful sound.

Glenn


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GreatGigInTheSky
sage


Reged: 02/06/11

Loc: Santa Clara, California
Re: Jupiter, 11/24 from Silicon Valley new [Re: DesertRat]
      #5538007 - 11/24/12 10:54 PM

Thanks Glenn. The hairdryer is a real howler -- thank goodness none of the neighbors have complained... Without it, I would get about half a dozen runs, then have to pack it in, lately. It's been really damp here the past few nights. Then, after removing the dew, it's about 20 to 30 minutes until the system settles down enough to image again. We've been getting good seeing, so it's a real frustration to let that time go by unproductively.

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old_frankland
Carpal Tunnel


Reged: 03/28/05

Loc: San Francisco Bay Area
Re: Jupiter, 11/24 from Silicon Valley new [Re: DesertRat]
      #5538011 - 11/24/12 10:56 PM

Jeff
Have been fighting the dew out Livermore as well, and only this afternoon ordered a dew heater strip for my C9. Made it through the summer nicely with the hair dryer, but, like you, the last few nights have been a battle.


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Hillbrad
scholastic sledgehammer
*****

Reged: 12/03/08

Loc: Nashville, Tennessee
Re: Jupiter, 11/24 from Silicon Valley new [Re: old_frankland]
      #5538180 - 11/25/12 01:49 AM

Hey Jeff great shots! I've been using a hair dryer as well..and I've never tried the dew strips...I guess I was always afraid of them messing up thermal equilibrium. I'll look forward to hearing about your results!

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Kokatha man
Postmaster
*****

Reged: 09/13/09

Loc: "cooker-ta man" downunda...
Re: Jupiter, 11/24 from Silicon Valley new [Re: Hillbrad]
      #5538240 - 11/25/12 03:22 AM

Very nice images Jeff....!

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GreatGigInTheSky
sage


Reged: 02/06/11

Loc: Santa Clara, California
Re: Jupiter, 11/24 from Silicon Valley new [Re: Kokatha man]
      #5538855 - 11/25/12 02:33 PM

Thanks, guys, for the kind words.

Brad, I'll let you know. I'm certain the hairdryer does mess up thermal equilibrium, as I can most definitely see it in my quality graph in AS2 if I image too soon after blasting the dew -- I see a steadily increasing quality line (showing that it started off badly and was improving as it adjusted to temp again). And the final results from those runs were relatively poor.

The idea behind the Dewbuster is that it's got two temperature probes -- one for the scope, one for the air, and it keeps them at a specified differential, so applies the minimum amount of heating to keep the scope above the dew point. I have seen good reviews from other (Deep Sky) imagers on the forums.


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Kecktastic
Post Laureate
*****

Reged: 01/16/10

Loc: Broken Hill NSW Australia
Re: Jupiter, 11/24 from Silicon Valley new [Re: GreatGigInTheSky]
      #5539255 - 11/25/12 06:56 PM

Impressive depth of detail Jeff, seems like the hair dryer did the trick.

Regards
Trevor


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GreatGigInTheSky
sage


Reged: 02/06/11

Loc: Santa Clara, California
Re: Jupiter, 11/24 from Silicon Valley new [Re: Kecktastic]
      #5541413 - 11/27/12 12:48 AM

Thanks Trevor. I'm feeling a little behind the curve here, with all the great results from the mono imagers using Winjupos. Seems like when I decided on the DBK, there wasn't such a large difference between the mono and color results. My next upgrade may be a mono cam and filter wheel. I was hoping to hold out until the next iteration with USB 3 and a higher frame rate and/or higher resolution was available. The software technology is moving quickly!

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