| Constellation tour in Summer |
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| Date & Time: | Jul 16 2021, from 24:17 to 24:33 JST(+0900) |
| Composed 6 shots with 3 minutes exposed | |
| 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 |
 Astroarts StellaNavigator |
The constellation of Sagitta (The Arrow) shows you four stars line up like an arrow itself completely.
It's found at nearly midway between Altair, alpha Aquilae and Albireo, beta Cygni.
The constellation is positioned near the East Side of summer's Milky Way, you can appreciate plenty of faint stars through binoculars. A Greek myth said this arrow is the God of love, Eros's one. The name of "Eros" is said "Cupid" in the Roman mythology. |
Guide for Deep Sky Objects| M71 | .....Very scattered globular cluster between delta & gamma Sge |
| Sh2-80 | .....Hα-emitting planetary nebula in western part, 10,900 ly away |
| Sh2-82 | .....Red diffused & blue reflection nebulae located central region, 3600ly. away |
 Delphinus |
 Vulpecula |
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Copyright(c) 2021 by Naoyuki Kurita, All rights reserved. |
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