Constellation tour in Summer

Date & Time: Sep 20 2009, from 21:03 to 22:20 JST(+0900)
Composed 4shots with 5 minutes exposed
Optical: AF zoom-Nikkor 24-85mm (f=85mm, F4.0), with Kenko PRO-Softon[A] filter
Auto-guided with Kenko SKYMEMO Equatorial
Digital Camera: Fujifilm FinePix S2Pro
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3024 x 2016)
CCD Sensitivity...ISO800, White Balance...Auto

ASCII/Astroarts StellaNavigator
Lyra is one of the ancient musical instruments. The constellation is positioned at the West Side of summer's Milky Way around the zenith, and formed with tiny triangle and parallelogram. This constellation is in the shape of lyre of Orpheus given by his father, Apollo.
The constellation is small and faint, but it's home to the fifth brightest star of Vega with a magnitude of 0, emitting a pure white light. Vega has a mean of "The Falling Eagle", and represents a jewel of Lyra.
The star is also popular in Japan as a heroine of an ancient Chinese legend of "Tanabata".

Guide for Deep Sky Objects

Ring Nebula M57 ...Small Planetary Nebula between Beta & Gammma Lyrae, 2200 ly. away
M56 ...Small Globular Cluster at the border to Cygnus, 34 thousand ly. away
NGC6703 ...Lenticular galaxy in 7deg. NNE of Vega
NGC6745 ...Small coliding galaxy in 5deg ENE of Vega



Copyright(c) 2009 by Naoyuki Kurita, All rights reserved.
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