I tried mixture of frames taken with and without dual narrow filter, though there were poor hydrogen-alpha and Oiii emissions except Sh2-174 in the field. The field was including Polaris. Frames rotated in imaging with autoguiding on, and I made autoguiding off.
equipment: Askar FMA180 Pro and Canon EOS R6-SP5, modified by Seo-san on ZWO AM5 Equatorial mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, ZWO ASI 120MM-mini without autoguiding
exposure: 6 times x 900 seconds, 5 x 240 sec, and 17 x 60 seconds at ISO 1,600 with Canon Clear Filter and 5 times 1,800 seconds with Optolong L-ultimate Dual 3nm Filter at f/4.5
site: 1,770m above sea level at lat. 35 22 22 North and long. 138 41 03 East on the western slope of Mt.Fuji 山梨県 南都留郡 鳴沢村 林道軽水線 終点
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I tried mixture of frames taken with and without dual narrow filter, though there were poor hydrogen-alpha and Oiii emissions except Sh2-174 in the field. The field was including Polaris. Frames rotated in imaging with autoguiding on, and I made autoguiding off.
equipment: Askar FMA180 Pro and Canon EOS R6-SP5, modified by Seo-san on ZWO AM5 Equatorial mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, ZWO ASI 120MM-mini without autoguiding
exposure: 6 times x 900 seconds, 5 x 240 sec, and 17 x 60 seconds at ISO 1,600 with Canon Clear Filter and 5 times 1,800 seconds with Optolong L-ultimate Dual 3nm Filter at f/4.5
site: 1,770m above sea level at lat. 35 22 22 North and long. 138 41 03 East on the western slope of Mt.Fuji 山梨県 南都留郡 鳴沢村 林道軽水線 終点
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The comet was drifting between Dippers at the night. Polaris is near the upper edge. The area is rich in integrated flux nebulae and dark nebulae. This frame is one shot version, and noise level is high. The comet and back ground are both clear. Airglow is visible reddish like linear waves near the right upper corner, and meteor trail is visible near the center. Satellite trail is also visible to the left of the meteor. Light pollution was minimal.
Sun Distance: 1.142 AU
Earth Distance: 0.313 AU
equipment: Sigma 40mm F1.4 "Art" and Canon EOS 6D-SP4, modified by Seo-san on ZWO AM5 equatorial mount, autoguided at a star nearby with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, GPUSB, and PHD2 with comet tracking on
exposure: 1 shot x 240 seconds at ISO 6,400 and f/3.2
Exposure started at 18:23:56UTC January 28, 2023.
Here is a frame taken with telescope at the night.
C/2022 E3 ZTF with FSQ-106ED f3 January 28, 2023:
www.flickr.com/photos/hiroc/52667441172
site: 20m above sea level at lat. 42 52 44 North and long. 143 51 05 East in rural part of Onbetsu Hokkaido 北海道音別. The site was only 4km from sea shore, and ambient temperature was relatively higher for the season, around -10 degrees Celsius. SQML was up to 21.64, and guide error RMS was low around 1".
Here is a pic of the site and equipment at the night:
www.flickr.com/photos/hiroc/52657931953
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The comet was drifting between Dippers at the night. Polaris is near the upper edge. The area is rich in integrated flux nebulae and dark nebulae. This frame is comet-oriented version. The comet is clear, but back ground is trailed and unclear. Stars got relatively unclear due to busy integrated flux nebulae. Airglow was dominantly visible moving like waves on some of individual frames, and meteor trail was visible on some frames. They left almost no influence on this frame, composed of many frames. Light pollution was minimal.
Sun Distance: 1.142 AU
Earth Distance: 0.313 AU
equipment: Sigma 40mm F1.4 "Art" and Canon EOS 6D-SP4, modified by Seo-san on ZWO AM5 equatorial mount, autoguided at a star nearby with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, GPUSB, and PHD2 with comet tracking on
exposure: 12 times x 240 seconds, 4 x 60 sec, 10 x 60 seconds at ISO 6,400 and f/3.2
Exposure started at 17:42:26UTC January 28, 2023.
Here is a frame taken with telescope at the night.
C/2022 E3 ZTF with FSQ-106ED f3 January 28, 2023:
www.flickr.com/photos/hiroc/52667441172
site: 20m above sea level at lat. 42 52 44 North and long. 143 51 05 East in rural part of Onbetsu Hokkaido 北海道音別. The site was only 4km from sea shore, and ambient temperature was relatively higher for the season, around -10 degrees Celsius. SQML was up to 21.64, and guide error RMS was low around 1".
Here is a pic of the site and equipment at the night:
www.flickr.com/photos/hiroc/52657931953
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equipmnent: Sigma 28mmF1.4 DG HSM Art and Canon EOS 5Dmk2-sp2, modified by Seo-san on Takahashi EM-200FG-Temma 2Z-BL, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, Starlight Xpress Lodestar Autoguider, and PHD2 Guiding
exposure: 8 times x 15 min, 2 x 4 min, and 4 x 1 minute at ISO 1,600 and f/3.2
site: 2,430m above sea level at lat. 24 39 52 South and long. 70 16 11 West near Cerro Armazones Chile
Tags: Astrometrydotnet:id=nova3930235 Astrometrydotnet:status=solved
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