Astrophotography by Dave Weixelman. Some recent images.
Milky Way rising over Bryce Canyon National park, UT
Camera: Canon Ra
Lens: Sigma 20mm f1.4 Art
Mount: iOptron Starguider Pro
Stars: 3 X 120 seconds, f2, ISO 400
Stars: 1 X 300 seconds, f2, ISO 3200, IDAS NB12 filter
Foreground image taken at dusk on the same evening from same spot as night sky images
Date: April 11, 2024
Bortle 1 sky
Milky Way rising over Bryce Canyon National park, UT
Taken from Sunset Point
Camera: Canon Ra
Lens: Sigma 20mm f1.4 Art
Mount: iOptron Starguider Pro
Stars: 3 X 120 seconds, f2, ISO 400
Stars: 1 X 300 seconds, f2, ISO 3200, IDAS NB12 filter
Foreground image taken at dusk on the same evening from same spot as night sky images
Date: April 11, 2024
Bortle 1 sky
ilky Way rising over Sierra Nevada Mountains, Lone Pine, CA
Taken from Tuttle Campground
Camera: Canon Ra
Lens: Sigma 20mm f1.4 Art
Mount: iOptron Starguider Pro
Stars: 1 X 130 seconds, f2, ISO 400
Stars: 1 X 300 seconds, f2, ISO 3200, IDAS NB12 filter
Foreground image taken at dusk on the same evening from same spot as night sky images
Date: May 8, 2024
Bortle 2 sky
Cygnus widefield
Camera: Canon Ra
Lens: Sigma 40mm f1.4 Art
Mount: Sky-watcher Adventurer GTi
Stars: 20 X 120 seconds, f2, ISO 800
Stars: 20 X 120 seconds, f2, ISO 6400, IDAS NB12 filter
Date: September 6, 2023
Bortle 3-4 sky
Milky Way floating above juniper trees. Smoke from wildfires forms layers on the horizon.
Camera: Canon Ra
Lens: Sigma 40mm, f1.4 Art
Mount: Sky-Watcher Star Adventurer GTi
Exposures:
Stars: 4 X 120 seconds, f2.2, ISO 800, no filter
Stars: 1 X 300 seconds, f2.2, ISO 3200, IDAS NB12 filter
Landscape: 1 X 2 seconds, f16, ISO100, at twilight
Date: June 16, 2023
Bortle 2 class
North America Nebula and bright Deneb in Cygnus
Camera: ZWO ASI2600MM
Lens: Rokinon 135mm at f2.8
Mount: Sky-Watcher EQM35 Pro
Exposures:
Luminance: 30 X 60 seconds
H-alpha: 15 X 60 seconds
Red: 10 X 60 seconds
Green: 10 X 60 seconds
Blue: 10 X 60 seconds
Date: June 14, 2023
Bortle 2 class
Lagoon Nebula framed by bright star clouds
Camera: ZWO ASI2600MM
Lens: Rokinon 135mm at f2.8
Mount: Sky-Watcher EQM35 Pro
Exposures:
Luminance: 30 X 60 seconds
H-alpha: 15 X 60 seconds
Red: 10 X 60 seconds
Green: 10 X 60 seconds
Blue: 10 X 60 seconds
Date: June 15, 2023
Bortle 2 class
Milky Way and Juniper trees
Location: Likely, CA
Camera: Canon Ra
Lens: Sigma 28mm, f1.4 DG HSM
Mount: iOptron Skyguider Pro
Exposure data:
Stars: 1 X 140 seconds, f2, ISO 800
Stars: 3 X 240 seconds, ISO 3200, f2, Optolong L enhance filter
Landscape: 1 X 10 seconds, ISO 200, f16, at blue hour
Date: June 22, 2022
Bortle class 2
Milky Way and meteor
Location: Lake Davis, CA
Camera: Canon Ra
Lens: Sigma 28mm, f1.4 DG HSM
Mount: iOptron Skyguider Pro
Exposure data:
Stars: 1 X 140 seconds, f2, ISO 800
Stars: 1 X 240 seconds, ISO 3200, f2, IDAS 6nm H-alpha filter
Landscape: 1 X 3 seconds, ISO 200, f16, at blue hour
Date: July 10, 2022
Bortle class 2
Milky Way and old tree
Location: Clover Valley, CA
Camera: Canon Ra
Lens: Sigma 14mm, f1.8 DG HSM
Mount: iOptron Skyguider Pro
Exposure data:
Stars: 1 X 150 seconds, f2, ISO 400, no filter
Stars: 3 X 120 seconds, ISO 4000, f2, IDAS NBZ filter
Landscape: 1 X 3 seconds, ISO 200, f16, at blue hour
Date: August 3, 2022
Bortle class 2
Rho Ophiuchus Nebula
Location: Lone Pine, CA
Camera: ZWO ASI1600MM
Lens: Rokinon 135mm, f2, ED
Mount: Skywatcher EQM 35 pro
Exposure data:
Red filter: 25 X 60 seconds
Blue filter: 25 X 60 seconds
Green filter: 25 60 seconds
Luminance filter: 90 X 30 seconds
Date: 4/15/2021
Orion rising
Location: Clover Valley, CA
Camera: Canon Ra
Lens: Sigma 28mm, f1.4 DG HSM
Mount: iOptron Skyguider Pro
Exposure data:
Stars: 1 X 120 seconds, f2.2, ISO 400, no filter
Stars: 1 X 120 seconds, ISO 400, f2.2, diffusion filter
Stars: 1 X 270 seconds, ISO 4000, f2.2, IDAS 6nm H-alpha filter
Landscape: 1 X 4 seconds, ISO 200, f16, at twiflight
Date: October 30, 2022
Bortle class 2
Summer Milky Way and Juniper tree
Location: Mono Lake, CA
Camera: Canon Ra
Lens: Sigma 14mm, f1.8 ART
Mount: iOptron Skyguider Pro
Exposure data:
Stars: 1 X 180 seconds, f2, ISO 800, no filter
Stars: 1 X 270 seconds, ISO 4000, f2.2, IDAS 6nm H-alpha filter
Landscape: 1 X 10 seconds, ISO 200, f16, at twiflight
Date: 5/4/2022
Bortle class 2
Orion widefield
Location: Griswold State Park, CA
Camera: ZWO ASI2600MM
Lens: Rokinon 135mm, f2
Mount: Skywatcher EQM 35 Pro
Exposure data:
H-alpha: 30 X 120 seconds, f2.8
Luminance: 30 X 120 seconds, f2.8
Red: 20 X 60 seconds, f2.8
Green: 20 X 60 seconds, f2.8
Blue: 20 X 60 seconds, f2,8
Date: 1/21/2023
Bortle class 2
Summer Milky Way and airglow
Location: Likely, CA
Camera: Canon Ra
Lens: Sigma 14mm, f1.8 ART
Mount: iOptron Skyguider Pro
Exposure data:
Stars: 1 X 180 seconds, f2, ISO 800, no filter
Stars: 1 X 240 seconds, ISO 3200, f2.2, Optolong L enhance filter
Landscape: 1 X 4 seconds, ISO 400, f11, at twiflight
Date: 6/26/2022
Bortle class 2
Summer Milky Way reflection
Location: Likely, CA
Camera: Canon Ra
Lens: Sigma 14mm, f1.8 ART
Mount: iOptron Skyguider Pro
Exposure data:
Stars: 1 X 180 seconds, f2, ISO 800, no filter
Landscape: 1 X 4 seconds, ISO 400, f11, at twiflight
Date: 7/9/2021
Bortle class 2
Blue Horsehead Nebula
Location: Likely, CA
Camera: ZWO ASI2600MM
Lens: Rokinon 135mm, at f2.2
Mount: Skywatcher EQM 35 Pro
Exposure data:
Luminance: 30 X 120 seconds, f2.2
Red: 15 X 120 seconds, f2.2
Green: 15 X 120 seconds, f2.2
Blue: 15 X 120 seconds, f2,2
Date: 6/24-26/2022
Bortle class 2
Lagoon Nebula region
Location: Likely, CA
Camera: Canon Ra
Lens: Rokinon 135mm at f2.8
Mount: Skywatcher EQM35 Pro
Exposure data:
Stars: 12 X 120 seconds, f2, ISO 800, no filter
Stars: 10 X 240 seconds, ISO 800, f2.2, Astronomik Ha clip filter
Date: 7/8/2021
Bortle class 2
Milky Way above Sentinel Rock, Yosemite National Park, USA
Location: Yosemite National Park, CA
Camera: Canon Ra
Lens: Sigma 28mm, 1.4, DG ART
Mount: iOptron Skyguider Pro
Vertical pano, 3 panels
Exposure data:
Stars: 10 X 14 seconds, f2, ISO 1600, each panel
Landscape: 1 X 3 seconds, ISO 200, f16, at twiflight
Date: 9/13/2022
Bortle class 2.5