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Cline River Photography, Photo by Edwina Podemski.
View or purchase items from our portfolio at: www.clineriverphotography.com
Cline River Photography, Photo by Edwina Podemski.
View or purchase items from our portfolio at: www.clineriverphotography.com
Cline River Photography, Photo by Edwina Podemski.
View or purchase items from our portfolio at: www.clineriverphotography.com
Cline River Photography, Photo by Edwina Podemski.
View or purchase items from our portfolio at: www.clineriverphotography.com
Cline River Photography, Photo by Edwina Podemski.
View or purchase items from our portfolio at: www.clineriverphotography.com
Cline River Photography, Photo by Edwina Podemski.
View or purchase items from our portfolio at: www.clineriverphotography.com
Cline River Photography, Photo by Edwina Podemski.
View or purchase items from our portfolio at: www.clineriverphotography.com
Cline River Photography, Photo by Edwina Podemski.
View or purchase items from our portfolio at: www.clineriverphotography.com
Cline River Photography, Photo by Edwina Podemski.
View or purchase items from our portfolio at: www.clineriverphotography.com
This is R-channel of the original frame taken with dual narrowband filter. The dual narrowband filter IDAS NB12 has relatively wide band width 12nm in half value width, and it is suitable even for super wide lenses. Starnet++v2.0 made the frame clearer.
Equipment: Sigma 28mmF1.4 "Art" , IDAS NB12 Dual Narrowband Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 12 times x 1,800 seconds, 10 x 900 sec, 11 x 240 sec, and 20 x 60 seconds at ISO 6,400 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
Colors got rich and creamy with and without narrowband filter. This frame was composed of good data taken during 6 nights. I have excluded all data containing satellites, aircrafts, or blur.
There look to be many straight dark filaments east to west or vice versa divergent toward west or from orion toward Eridanus almost all over the area. North is up, and east is to the left on the frame.
"Kompaneets model fitting of the Orion-Eridanus superbubble II: Thinking outside of Barnard's Loop" by Pon A et al 2018:
arxiv.org/pdf/1606.02296
Equipment: Sigma 28mmF1.4 "Art" , IDAS NB12 Dual Narrowband Filter or IDAS Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 12 times x 1,800 seconds, 10 x 900 sec, 11 x 240 sec, and 20 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 18 times x 900 seconds, 10 x 240 sec, and 17 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
Red channel got too strong.
Equipment: Sigma 28mmF1.4 "Art" , IDAS NB12 Dual Narrowband Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 12 times x 1,800 seconds, 10 x 900 sec, 11 x 240 sec, and 20 x 60 seconds at ISO 6,400 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
Red channel got too strong.
Equipment: Sigma 28mmF1.4 "Art" , IDAS NB12 Dual Narrowband Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 12 times x 1,800 seconds, 10 x 900 sec, 11 x 240 sec, and 20 x 60 seconds at ISO 6,400 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
This is R-channel of the original frame taken with dual narrowband filter. The dual narrowband filter IDAS NB12 has relatively wide band width 12nm in half value width, and it is suitable even for super wide lenses. Starnet++v2.0 made the frame clearer.
Eridanus Loop is a SuperNova Remnant. Barnard's Loop is said to be formed by two SuperNovae as below.
"A 3D View of Orion. I. Barnard's Loop" by Foley M et al 2023:
iopscience.iop.org/article/10.3847/1538-4357/acb5f4/pdf
"Kompaneets model fitting of the Orion-Eridanus superbubble II: Thinking outside of Barnard's Loop" by Pon A et al 2018:
arxiv.org/pdf/1606.02296
Equipment: Sigma 28mmF1.4 "Art" , IDAS NB12 Dual Narrowband Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 12 times x 1,800 seconds, 10 x 900 sec, 11 x 240 sec, and 20 x 60 seconds at ISO 6,400 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
This is R-channel of the original frame taken with dual narrowband filter. The dual narrowband filter IDAS NB12 has relatively wide band width 12nm in half value width, and it is suitable even for super wide lenses. Starnet++v2.0 made the frame clearer.
Eridanus Loop is a SuperNova Remnant. Barnard's Loop is said to be formed by two SuperNovae as below.
"A 3D View of Orion. I. Barnard's Loop" by Foley M et al 2023:
iopscience.iop.org/article/10.3847/1538-4357/acb5f4/pdf
Equipment: Sigma 28mmF1.4 "Art" , IDAS NB12 Dual Narrowband Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 12 times x 1,800 seconds, 10 x 900 sec, 11 x 240 sec, and 20 x 60 seconds at ISO 6,400 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
I took the area through the whole stay in Chile for a week. This frame was composed of data taken for three nights. Stars near left upper corner got trailed due to differential atmospheric refraction near the horizon.
Here is the same area taken with the same lens in Hawaii 2019:
Barnard's Loop and Eridanus Loop with Sigma 28mmF1.4:
www.flickr.com/photos/hiroc/49812060693
Eridanus Loop is a SuperNova Remnant. Barnard's Loop is said to be formed by two SuperNovae as below.
"A 3D View of Orion. I. Barnard's Loop" by Foley M et al 2023:
iopscience.iop.org/article/10.3847/1538-4357/acb5f4/pdf
Equipment: Sigma 28mmF1.4 "Art" and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 18 times x 900 seconds, 10 x 240 sec, and 17 x 60 seconds at ISO 1,600 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
I took the area through the whole stay in Chile for a week. This frame was composed of data taken for three nights. Stars near left upper corner got trailed due to differential atmospheric refraction near the horizon.
Here is the same area taken with the same lens in Hawaii 2019:
Barnard's Loop and Eridanus Loop with Sigma 28mmF1.4:
www.flickr.com/photos/hiroc/49812057423
Eridanus Loop is a SuperNova Remnant. Barnard's Loop is said to be formed by two SuperNovae as below.
"A 3D View of Orion. I. Barnard's Loop" by Foley M et al 2023:
iopscience.iop.org/article/10.3847/1538-4357/acb5f4/pdf
Equipment: Sigma 28mmF1.4 "Art" and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 18 times x 900 seconds, 10 x 240 sec, and 17 x 60 seconds at ISO 1,600 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
Cline River Photography, Photo by Edwina Podemski.
View or purchase items from our portfolio at: www.clineriverphotography.com
Cline River Photography, Photo by Edwina Podemski.
View or purchase items from our portfolio at: www.clineriverphotography.com
Cline River Photography, Photo by Edwina Podemski.
View or purchase items from our portfolio at: www.clineriverphotography.com