Deep Sky Object in Spring
NGC5466 (Globular Cluster in Bootes)
|Date & Time: ||Apr 29 2009, from 22:19 to 22:45 JST(+0900)
|Composed 4 shots with 8 minutes exposed|
|Optical: ||VIXEN 20cm(7.9") VISAC with a conversion lens (f=1278mm, F6.4)
|with BaaderPlanetarium Moon & Skyglow filter|
|Auto-guided with TAKAHASHI JP Equatorial & Meade Pictor 201XT
|Digital Camera: ||Nikon D50 (Remodeled)
|Location: ||Ooizumi, Hokuto city, Yamanashi pref.
|Camera Settings: ||Recording Format...12bit CCD-RAW, converted to 8bit TIFF(3008×2000)|
NGC5466 is a very dimmed globular cluster in west region of Bootes.
It's difficult to catch the globular cluster with finder scopes, you can use a way of searching that firstly find out a bright globular cluster of M3 in Canes Venatici,
and next tracing about 5 degrees east from M3. NGC5466 has a visual magnitude of 10, you might need over 4 inch telescopes to detect it clearly.
The globular has fairly sparse stellar density; long exposed films can easily resolve member stars around central region.
This star field is very far from the Milky Way, and a distance of the globular is estimated about 47 thousand light years.
The globular cluster is positioned apart from the galactic disk, to say, lying at a remote region of the Galaxy.
|NGC5466 / Globular Cluster, type XII|
|R.A.||14h 05m 30.0s (2000.0)|
|Dec.||+28° 32' 00" (2000.0)|
|Real Size||81 light yrs.|
|Distance||47 thousand light yrs.|