Deep Sky Object in Summer
Celestial bodies around Galactic center
|Date & Time: ||Apr 27 2012, from 26:07 to 27:11 JST(+0900)
|Mosaic of 2 flames of 8min.×4shots|
|Optical: ||AF zoom-Nikkor ED 80-200mmF2.8 (f=135mm, Aperture: F2.8)
|with Astronomik CLS-CCD filter|
|Auto-guided with TAKAHASHI EM-200 Equatorial
|Digital Camera: ||Canon EOS 550D (Remodeled)
|Location: ||Koumi town, Nagano pref.
|Camera Settings: ||Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)|
This image has captured a star field around large sized open clusters of M6 and M7 in tail of Scorpius and its northern region with span of about 9×11 degrees.
The galactic equator is passing the image from upper left to lower right, reddish H-alpha regions are distributed along it.
Two striking emission nebulae of NGC6357 and NGC6334 (The cat's paw nebula) have been positioned in lower right hand side of image.|
In Sagittarius region near boundaries on Scorpius and Ophiuchus, you can detect a compact reddish emission nebula of Sh2-16.
The Galactic center, galactic longitude zero, is at about 30 arc minutes northwest of the nebula.
The X-ray object of "Sagittarius A" has been discovered in here, it's considered that the object contains a vast black-hole.