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| User galleriesThis category contains albums that belong to Coppermine users. |
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| 487 files in 27 albums and 1 categories with 0 comments viewed 219,396 times |
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344 views
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Birds with Sailboat316 viewsClicking on the image will provide new widow with a larger image
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Cygnus Ha382 viewsTelescope: 28mm tamron f2.8@f4
Mount: Takahashi NJP
Camera: Sbig 11000
Exposure: Luminance 17x20 min Ha
Filters:
Location: Escondido my driveway
Date:9/16-17/2007
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373 views
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M45313 viewsTelescope: Nikkor 400mm f2.8 @f4
Mount: Takahashi NJP
Camera:Sbig 2000xm
Exposure:10x2min
Location: Escondido Ca (my driveway in Hidden Meadows)
Date:12/27/03
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Comet Machholz and the Pleiades542 viewsComet Machholz and the Pleiades
10 3 Min exp. Sbig 2000 XM camera and a Nikkor 105mm f2.5 @5.6
I took this from my driveway in Hidden Meadows (Escondido Ca)
I started taking the exposures about 45min after Sunset because clouds
were moving in.
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365 views
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Procedure for Finding Limiting Magnitude440 views1. Set up and polar align Tak. NJP mount with 8" Newt. with SBIG 11000
2. Locate NGC 2403
4. Locate guide star and calibrate guider
5. Take sequence of 5, 10, 30, 60, 120, and 600 sec.
6. Open dark-subtracted images in MaxIm
7. Using the settings above, find magnitude and SNR of the three circled stars
8. Record Magnitude and SNR of each in Excel
9. insert the formula "=(LOG(SNR Star x/3)/LOG(2.51))+Magnitude Star x” for each star to find the limiting magnitude using a SNR of 3 as the limiting magnitude
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California Nebula NGC 1499319 viewsZWO ASA 1600 130 x 122 sec Ha binned 2x2 Takahashi 60 mm at about f 4.4Nov 25, 2017
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1 August 2013 Explore the Stars2127 viewsAug 16, 2013
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A Milky Way Picture Taken at the June 2013 Explore the Stars Program6992 viewsWide angle (8mm) lens with a Canon Rebel XT
19 3 Minute Exposures
Jun 19, 2013
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Comet C/2011 L4 PANSTARRS 3/12/2013653 viewsTaken from my house 10 miles north of Escondido Ca
Comet C/2011 L4 PANSTARRS 3/12/2013
Canon EOS REBEL T1i
2x6 sec.
ISO 200
Uranus is visible in the original and using it as a reference I would estimate the magnitude of the comet to be about +1.5Mar 13, 2013
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Milky Way May 2011 Explore the Stars693 views4x10 min 16mm lens Sbig 11000Jun 12, 2011
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Milky Way May 2011 Explore the Stars1336 views4x10min Red with a 16 mm lens and an Sbig 11000 cameraJun 12, 2011
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Superbowl 45: The Cheeseheads735 viewsFeb 12, 2011
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642 viewsFeb 12, 2011
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