|Constellation tour in Spring
|Date & Time: ||Feb 16 2007, 27:38 JST(+0900), 5min. Exp.
|Optical: ||AF zoom-Nikkor 24-85mm (f=24mm, F4.8), with Cokin Diffuser-1 filter
|Auto-guided with VIXEN ATLUX 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...ISO400, White Balance...Auto|
Centaurus is one of the largest constellations visible at the lower southern sky in spring, positioned at the south of Virgo.
Although the figure of Centaurus is seen only the upper part of that around Tokyo, it includes two bright stars with over the 1st magnitudes at the front hooves.
The constellation marks Cheiron, the king of the Centaurus with the body of half-man, half-beast.
He has a sword waving menacingly toward Lupus, the Wolf on the east.|
The principal star at the Centaur's foot, Alpha Centauri, is well known as the closest to the solar system, about 4.3 light years away.
And the constellation has a very spectacular globular cluster of the Omega Cluster at the back.
The cluster is easily detected only with naked eyes as a normal star with about third magnitude.
The lower part of Centaurus is bathed in the "spring's Milky Way" invisible at Japan.
It must be true that the view of the constellation seeing at the Southern Hemisphere is extremely splendid,
the Southern Cross is positioned just south of Centaurus.
Guide for Deep Sky Objects
||.....Largest globular cluster in heavens, forming the constellation as a star
||.....Small galaxy 17' east of iota Cen.
||.....Famous radio Galaxy as "Centaurus A" positioned 4 deg north of Omega Cluster
||.....Irregular galaxy near a border to Hydra
||.....The one of largest galactic cluster in northern region, 640 million ly away