Deep Sky Object in Summer
Molecular Cloud around η Draconis

Click on image to enlarge

Date & Time: Sep 17 2023, from 20:23 to 21:51 JST(+0900)
Composed 30 shots with 3 minutes exposed
Optical: AF zoom-Nikkor ED 80-200mmF2.8 (f=135mm, Aperture: F4.0)
with Kenko Starry-Night filter
Auto-guided with Kenko SKYMEMO Equatorial
Digital Camera: Nikon D810A
Location: Furudono town, Fukushima pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(7360×4912)
Device Size...FX format(36×24mm)
Sensitivity...ISO1600, White Balance...Daylight


LBN406 / Molecular Cloud, type 6 R
R.A.16h 46m 00.0s (2000.0)
Dec.+60°16' 00" (2000.0)
Apparent Size120×30'
Real SizeN/A
Magnitude -
DistanceN/A
This image captured a field around the center of Draco with a span of 6.9×10.2°. A 3rd magnitude star at right-hand side of this image is η Draconis (Athebyne). You can detect an extraordinary dimmed molecular cloud just east of the star. Although the field is far from the Milky Way, the cloud has been considered as a minor bank of interstellar gaseous matter gathered by chance. An apparent rough span can be estimated as a bit smaller than 5 degrees; you can see a comparatively dense cloud LBN406 at the southern edge.
This image has been cropped with an equivalent focal length of 200mm.


Deepsky objects around ηDraconis Deepsky objects around ηDraconis



SNR G65.3+5.7
NGC5643

Copyright(c) 2023 by Naoyuki Kurita, All rights reserved.
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