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| Date & Time: | Aug 15 2020, from 22:51 to 24:34 JST(+0900) |
| Mosaic of 2 flames of 5min.×10shots | |
| Optical: | TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3) |
| with IDAS LPS-D1 Light-pollution suppression filter | |
| Auto-guided with TAKAHASHI EM-200 Equatorial & Lacerta M-GEN | |
| Digital Camera: | Canon EOS 6D (Remodeled) |
| Location: | Koumi town, Nagano pref. |
| Camera Settings: | Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5472×3648) |
| Device Size...36×24mm, Sensitivity...ISO1600 |
This picture shows you a field that includes several diffused nebulae between Cassiopeia and Cepheus.
The nebula spread out in southern region of this image is Sh2-157.
The nebula has a span of a degree and a bright nucleus in center with a number of Sh2-157a.
You can see a characteristic figure with indistinct loops in northern region.And in northern region of the field have small nebulae of NGC7635 (The bubble nebula) and NGC7538, nameless H-alpha gaseous matters has been distributed in outskirts. An open cluster of M52 is lying in upper left hand side of this image, you can appreciate only the cluster through binoculars. To Close-up of NGC7635 |
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 Sh2-155 |
 Around Sh2-163 |
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Copyright(c) 2020 by Naoyuki Kurita, All rights reserved. |
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