|
| Date & Time: | Nov 11 2017, from 19:22 to 22:57 JST(+0900) |
| Mosaic of 8 flames of 3min.×8shots | |
| Optical: | BORG 67FL, with a conversion lens (f=324mm, F4.8) |
| with BaaderPlanetarium Moon&Skyglow filter | |
| Auto-guided with VIXEN ATLUX Equatorial | |
| Digital Camera: | Nikon D810A |
| Location: | Ooizumi, Hokuto city, Yamanashi pref. |
| Camera Settings: | Recording Format...14bit CCD-RAW, converted to 16bit TIFF(7360×4912) |
| Device Size...FX format (36×24mm) | |
| Sensitivity...ISO6400, White Balance...Daylight |
|
I have captured a star field around western Cassiopeia and eastern Cepheus with a span of 12°×10°.
We can detect various invisible reddish diffused nebulae distributing along the Autumnal Milky Way .
You can see a widespread but very dimmed nebula just north of NGC7635, the Bubble Nebula.
And a unique-shaped nebula of Sh2-157 with dimmed loops is positioned in central left hand side. you can browse individual images from anchors below. |
 |
 |
| Date & Time: | Jul 16 2021, from 26:06 to 27:10 JST(+0900) |
| Mosaic of 2 flames of 3min.×10shots | |
| Optical: | BORG 60ED, with a conversion lens (f=245mm, F4.1) |
| with IDAS LPS-D1 Light-pollution suppression filter | |
| Auto-guided with Kenko SKYMEMO Equatorial | |
| Digital Camera: | Nikon D810A |
| Location: | Koumi town, Nagano pref. |
| Camera Settings: | Recording Format...14bit CCD-RAW, converted to 16bit TIFF(7360×4912) |
| Device Size...FX format (36×24mm) | |
| Sensitivity...ISO2500, White Balance...Daylight |
|
This field covers western half of the first image with a span of 8.2×9.2 degrees.
The image has emphasized the reddish H-alpha composition; you can detect dimmed hydrogen gaseous matters distributed between identified nebulae.
The galactic equator is crossing the field of view from upper left to lower right, uncountable dark and emission nebulae are intricated along it. you can browse individual images from anchors below. |
 |
 Helix Nebula(NGC7293) |
 Bubble Nebula(NGC7635) |
 |
 |
 |
|
Copyright(c) 2018, 2021 by Naoyuki Kurita, All rights reserved. |
| To top page | To Deepsky in Autumn index | Cassiopeia | Cepheus |