Deep Sky Object in Summer
NGC6366 (Globular Cluster in Ophiuchus)


Date & Time: May 3 2022, from 24:20 to 24:56 JST(+0900)
Composed 10 shots with 4 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with Meade LX200 Equatorial & Lacerta M-GEN
Digital Camera: Nikon D810A
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4080×4080)
Device Size...20×20mm
Sensitivity...ISO4000, White Balance...Daylight


NGC6366 / Globular Cluster, type XI
R.A.17h 27m 42.0s (2000.0)
Dec.-05° 05' 00" (2000.0)
Apparent Size8.3'
Real SizeN/A
Magnitude10.0
DistanceN/A
There are three striking globular clusters of M10, M12 and M14 in the pentagon of Ophiuchus. And actually the NGC6366 is another one lying in the vast pentagon in summer skies. The globular is positioned about 3 degrees southwest from M14, and has an apparent size of about 8 arc minutes, very sparse stellar density with 10th magnitude in brightness. You can see the globular cluster as a dimmed nebula through telescopes, difficult to resolve individual stars.



NGC6356
NGC6401

Copyright(c) 2022 by Naoyuki Kurita, All rights reserved.
To top page To Deepsky in Summer index Ophiuchus