Constellation tour in Spring
Bootes (The Herdsman)

Date & Times: May 4 2000, 22:42 JST(+0900), 20min. Exp.
Optical: SMC TAKUMAR f=105mm F2.4, Aperture: F4.0, with Cokin Diffuser-1 filter
Auto-guided with Kenko SKYMEMO Equatorial
Camera: PENTAX 67
Film: Ektachrome E200 (+1EV pushed)
Location: Kita-ibaraki city, Ibaraki pref.

ASCII/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 gamma Boo.
IC983 .....Small galaxy in 2deg. SE of Arcturus
UGC9242(Superthin Galaxy) .....Very elongated edge-on galaxy bathed at 2deg. NW of gamma Boo.
Abell 1795 .....Galaxy Cluster near a border to CVn, 840 millions ly away



Copyright(c) 2000 by Naoyuki Kurita, All rights reserved.
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