Comet 2020F3 NEOWISE on Aug 7, 2020
Click on image to enlarge
| Date & Time: | Aug 7 2020, from 20:03 to 20:32 JST(+0900) |
| Composed 10 shots with 3 minutes exposed |
| Optical: | TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3) |
| with IDAS LPS-D1 Light-pollution suppression filter |
| Auto-guided with TAKAHASHI EM-200 Equatorial |
| Digital Camera: | Canon EOS 6D (Remodeled) |
| Location: | Koumi town, Nagano pref. |
| Camera Settings: | Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5472×3648) |
| Device Size...36×24mm, Sensitivity...ISO1600 |
Click on image to enlarge
| Date & Time: | Aug 7 2020, from 20:16 to 20:31 JST(+0900) |
| Composed 6 shots with 3 minutes exposed |
| Optical: | BORG 67FL with conversion lens (f=324mm, F4.8) |
| with BaaderPlanetarium Moon&Skyglow filter |
| Auto-guided with TAKAHASHI EM-200 Equatorial |
| Digital Camera: | Nikon D810A |
| Location: | Koumi town, Nagano pref. |
| Camera Settings: | Recording Format...14bit CCD-RAW, converted to 16bit TIFF(7360×4912) |
| Device Size...FX format(36×24mm) |
| Sensitivity...ISO1600, White Balance...Daylight |
The comet 2020F3 NEOWISE in that day positioned in evening western skies, 1.5 degrees ESE of alpha Com.; I estimated a coma brightness as approx. 5th magnitude.
These images show you that the comet has a wide-spread dust tail with a length of a degree and a dimmed and streak over-4-degrees ion tail stretched in east direction.
The comet NEOWISE is getting darker gradually since late July, however we can still chase the rare big comet with telescopes.
Additionally, we can see two globular clusters of M53 and NGC5053 in Coma Berenices just north of the comet.
1st image has been cropped with an equivalent focal length of 700mm: View angle: 2.92×1.95°
2nd image: View angle: 6.34×4.24°
