| Constellation tour in Summer |
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| Date & Time: | May 3 2021, from 23:14 to 23:36 JST(+0900) |
| Composed 4 shots with 5 minutes exposed | |
| Optical: | AF zoom-Nikkor 24-85mm (f=50mm, stop: F4.0) |
| with IDAS LPS-P2-FF Light-pollution suppression & Kenko PRO Softon[A] filters | |
| Auto-guided with TAKAHASHI EM-200 Equatorial | |
| Digital Camera: | Canon EOS 550D (Remodeled) |
| Location: | Ooizumi, Hokuto city, Yamanashi pref. |
| Camera Settings: | Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456) |
| Sensitivity...ISO800 |
 Astroarts StellaNavigator |
Ursa Minor, the Little Bear, includes the Pole Star, it seems to rotate around the celestial North Pole as if flatten itself against the sky.
The constellation is visible all the year round at Northern Hemisphere, and we amateur astronomers have used the constellation as a rough guide to explore the evening's sky. Ursa Minor is often called "The Little Dipper", as the minor version of Big Dipper in Ursa Major (the Big Bear). And beta UMi named Kochab, glittering orange at the tip of dipper is very clear, the star has a name of "YARAI-BOSHI" in Japan, meaning of the guard of Pole Star. |
Guide for Deep Sky Objects| Ursa Minor Dwarf(UGC9749) | .....An indistinct companion of the Galaxy at 4.7deg. south of γ UMi, 215 thousand ly away |
| Molecular Cloud around Polaris | .....Distribution of dimmed inter-stellar gaseous matter around Polaris |
| Abell 2256 | .....Comparatively large-scaled galaxy cluster at 4deg. ζ UMi, 780 million ly. away |
 Draco |
 Andromeda |
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Copyright(c) 2021 by Naoyuki Kurita, All rights reserved. |
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