| Constellation tour in Spring |
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| Date & Time: | Mar 20 2020, from 24:07 to 24:33 JST(+0900) |
| Composed 6 shots with 5 minutes exposed | |
| Optical: | AF zoom-Nikkor 24-85mm (f=24mm, 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 600D (Remodeled) |
| Location: | Ooizumi, Hokuto city, Yamanashi pref. |
| Camera Settings: | Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456) |
| Sensitivity...ISO800 |
 Astroarts StellaNavigator |
Bootes is known as the protector of the Bear (Ursa Major) because of being on the tracks of the Great Bear,
accompanied by two dogs (the Canes Venatici). The constellation includes a major star of Arcturus, alpha Bootis. The star is easily found out by following the sweep of the Big Dipper's handle, and the curve takes you to an another bright star of Spica in south sky, alpha Virginis. The curve across the night sky in spring from the Big Dipper to Spica called "The Spring's Great Curve". Arcturus is the brightest star in the Northern Hemisphere and the third brightest in all of the heavens with a magnitude of -0.1 and a color of orange. Arcturus means "Guardian of the Bear", and has a name of the wheat star in Japan because the star is seen at zenith when the wheat is harvested in late spring. |
Guide for Deep Sky Objects| NGC5248 | .....A dimmed bared galaxy near the border to Virgo |
| NGC5416 Group | .....Small galactic galaxy in southwestern region |
| NGC5466 | .....A globular cluster with dimmed & sparse appearance at west region, 47 thousand ly. away |
| NGC5529 | .....Small edge-on galaxy in 4deg. SW of γ Boo. |
| Around NGC5899 | .....Two small spiral galaxies at 3deg. NE of β Boo |
| IC983 | .....Small galaxy in 2deg. SE of Arcturus |
| UGC9242(Superthin Galaxy) | .....Very elongated edge-on galaxy bathed at 2deg. NW of γ Boo. |
| Abell 1775 | .....Galaxy cluster at 10.6deg. NW of Arcturus, 950 million ly. away |
| Abell 1795 | .....Galaxy Cluster near a border to CVn, 840 millions ly away |
 Virgo |
 Cancer |
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Copyright(c) 2020 by Naoyuki Kurita, All rights reserved. |
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