Star trails over storm clouds
- OzEclipse
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Star trails over storm clouds
Pentax K1 ISO 100 Av mode Comp -1eV 30s
Rokinon 135mm ƒ2 @ f3.5.
Amateur astronomer since 1978...................Web site : http://joe-cali.com/
Scopes: ATM 18" Dob, Vixen VC200L, ATM 6"f7, Stellarvue 102ED, Saxon ED80, WO M70 ED, Orion 102 Maksutov, ST80.
Mounts: Takahashi EM-200, iOptron iEQ45, Push dobsonian with Nexus DSC, three homemade EQ's.
Eyepieces: TV Naglers 31, 17, 12, 7; Denkmeier D21 & D14; Pentax XW10, XW5, Unitron 40mm Kellner, Meade Or 25,12
Cameras : Pentax K1, K5, K01, K10D / VIDEO CAMS : TacosBD, Lihmsec.
Cam/guider/controllers: Lacerta MGEN 3, SW Synguider, Simulation Curriculum SkyFi 3+Sky safari
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Re: Star trails over storm clouds
DSO AP: Orion 200mm f/4 Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,Oiii,LRGB filters; KWIQ/QHY5 guide scope; Planetary AP: Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on HEQ5 pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome; iOptron CEM60 (pier); Helena Observatory (H2O) Astrobin
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Re: Star trails over storm clouds
Dave
Stellarvue SVX127D
http://www.unitronhistory.com
"Look deep into nature, and then you will understand everything better." Albert Einstein
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Re: Star trails over storm clouds
Telescopes: 50mm refractor, ED80 triplet, 90mm makcass, 10" dob, 8"SCT, 11"SCT
Mounts: Celestron CGX, Orion Sirius + several camera tripods
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Re: Star trails over storm clouds
-Jeff
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Re: Star trails over storm clouds
REFRACTOR , TS-Optics Doublet SD-APO 125 mm f/7.8 . Lunt 80mm MT Ha Doublet Refractor .
EYEPIECES, Delos , Delite and 26mm Nagler t5 , 2 zoom Svbony 7-21 , Orion Premium Linear BinoViewer .
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Mounts , cg-4 motorized , eq6 pro belt drive .
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Jean-Yves
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Re: Star trails over storm clouds
Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), ZWO OAG, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
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Re: Star trails over storm clouds
app.php/article/1-26-2023-tss-astrophot ... of-the-day
Scopes: Explore Scientific ED80CF, Skywatcher 200 Quattro Imaging Newt, SeeStar S50 for EAA.
Mounts: Orion Atlas EQ-g mount & Skywatcher EQ5 Pro.
ZWO mini guider.
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Re: Star trails over storm clouds
I love the 2 lightning bolts, hitting what I see as Frankenstein's monster!
And now I also see a puppy dog at his feet
-Jeff
Member; ASTRA-NJ
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Re: Star trails over storm clouds
Sky-Watcher 90mm f/13.8 Maksutov-Cassegrain on motorized Multimount
Orion Astroview 120ST f/5 Refractor on EQ3 mount
Celestron Comet Catcher 140mm f/3.64 Schmidt-Newtonian on alt-az mount
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>)))))*>
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Re: Star trails over storm clouds
I can't think of anything else.
Clear Skies,
Chris
Image OTA: EvoStar ED80, WO Z73, C8-A XLT
Mount: EQ6-R Pro Pier, AZ-EQ5 Pro Pier
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- OzEclipse
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Re: Star trails over storm clouds
Here's a little more detail on how I performed the capture:-
I saw the storm off the front deck.
Using my handspan, I estimated it spanned 10-15 degrees so I grabbed full frame
I set up the camera on a tripod
Pentax K1
Rokinon 135mm f2 lens set to f3.5
Intervalometer set to 35s interval
The camera in Av mode gradually takes longer and longer exposures as twilight gets darker. As soon as one exposure ends, the next begins. At the beginning of the sequence, exposures were 8 s and the exposures soon began climbing/lengthening to 30s.
The low ISO ensures maximum dynamic range and the -1eV leaves a little "head room" on the histogram and in the sensor wells for those exposures where the lightning flashes. The screen shot below is captured from my Lightroom. The complete sequence has 26 exposures taken over a 20 minute period
Amateur astronomer since 1978...................Web site : http://joe-cali.com/
Scopes: ATM 18" Dob, Vixen VC200L, ATM 6"f7, Stellarvue 102ED, Saxon ED80, WO M70 ED, Orion 102 Maksutov, ST80.
Mounts: Takahashi EM-200, iOptron iEQ45, Push dobsonian with Nexus DSC, three homemade EQ's.
Eyepieces: TV Naglers 31, 17, 12, 7; Denkmeier D21 & D14; Pentax XW10, XW5, Unitron 40mm Kellner, Meade Or 25,12
Cameras : Pentax K1, K5, K01, K10D / VIDEO CAMS : TacosBD, Lihmsec.
Cam/guider/controllers: Lacerta MGEN 3, SW Synguider, Simulation Curriculum SkyFi 3+Sky safari
Memberships Astronomical Association of Queensland; RASNZ Occultations Section; Single Exposure Milky Way Facebook Group (Moderator) (12k members), The Sky Searchers (moderator)
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Re: Star trails over storm clouds
I so want an obsy!
Clear Skies,
Chris
Image OTA: EvoStar ED80, WO Z73, C8-A XLT
Mount: EQ6-R Pro Pier, AZ-EQ5 Pro Pier
Guide OTA: Orion 60mm, WO 32mm, ZWO OAG, SV501P
Guide Cam: ZWO 120mm, 290mm mini
EAA OTA: Orion ST80
EAA Cam: SVBony SV705C
EP: Baader Hyperion Modular Set
Filters: L-Pro Canon EOS C, L-eNhance, L-Pro, Optolong Ha 7mm, Optolong Oiii 6.5mm, Optolong Sii 6.5mm, ES H-Beta
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Processing: PixInsight, DSS 4.2.6, Adobe PS CC, Astronomy Tools Action Set, Star Spikes Pro
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Re: Star trails over storm clouds
Dave
Stellarvue SVX127D
http://www.unitronhistory.com
"Look deep into nature, and then you will understand everything better." Albert Einstein
- Bigzmey Online
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Re: Star trails over storm clouds
Mounts: SW: SkyTee2, AzGTi; iOptron: AZMP; ES: Twilight I; Bresser: EXOS2; UA: MicroStar.
Binos: APM: 100-90 APO; Canon: IS 15x50; Orion: Binoviewer, LG II 15x70, WV 10x50, Nikon: AE 16x50, 10x50, 8x40.
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- DEnc
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