Constellation tour in Summer
Corona Borealis (The Northern Crown)

Date & Time: Feb 11 2000, 25:55 JST(+0900), 35min. Exp.
Optical: SMC PENTAX f=165mm F2.8, Aperture: F4.0, with Cokin Diffuser-1 filter
Auto-guided with TAKAHASHI EM-200 Equatorial
Camera: PENTAX 67
Film: Ektachrome E100S (+1EV pushed)
Location: Ooizumi vil., Yamanashi pref.

ASCII/Astroarts StellaNavigator
Corona Borealis, has another name of the Northern Crown, is made up by seven stars that lines up like a semicircle. The constellation is found nearly midway between Arcturus and Vega. Member stars are not so bright except for Gemma, or Alphecca (alpha Coronae Borealis), but it's pretty obvious because there aren't so many bright ones around.
It's the crown that was given Ariadne by Dionysus.

Guide for Deep Sky Objects

Abell 2061 .....Galaxy cluster including about 70 members, about 1 billion ly. away.
Corona Cluster(Abell 2065) .....A galactic cluster including 100 galaxies, 860 million ly away.

Serpens & Ophiuchus

Corona Austrina

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