| Constellation tour in Summer |
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| Date & Time: | Jul 26 2014, from 25:47 to 25:58 JST(+0900) |
| Composed 3 shots with 5 minutes exposed | |
| Optical: | AF zoom-Nikkor 24-85mm (f=28mm, stop: F4.0) |
| with IDAS LPS-P2-FF Light-pollution suppression & Kenko PRO Softon[A] filters | |
| Auto-guided with EYEBELL CD-1 portable Equatorial | |
| Digital Camera: | Canon EOS 550D (Remodeled) |
| Location: | Koumi town, Nagano pref. |
| Camera Settings: | Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456) |
| Sensitivity...ISO800 |
 Astroarts StellaNavigator |
The constellation of Cygnus, The Swan, is seen in about zenith at northern hemisphere,
and is one of most obvious asterisms in summer skies, which because of its shape is known as the Northern Cross. Alpha Cygni that marks the tail of swan is called Deneb, from "Al Dhanab al Dajajah" meaning of the Hen's tail. The star forms "The Great Summer's Triangle" with Altair (alpha Aquilae) and Vega (alpha Lyrae), and Deneb has the lowest magnitude in the trio, because of the star has the farthest distance of 1500 light years in bright stars with the first magnitude in heavens. Deneb is considered as a white supergiant. And beta Cygni positioned at the head of swan is also known as "Albireo", a magnificent binary system of gold and blue. The component is quite wide, marking it a popular object for binoculars. |
Guide for Deep Sky Objects| North American Nebula | .....Large Diffused Nebula 3 degrees East of Deneb |
| IC1318 | .....Diffused Nebula spread around Gamma Cygni |
| Veil Nebula | .....Loop-shaped faint Nebula at a wing of south-side |
| Diffused Nebulae in Cygnus | .....Wide-angle view includes 3 objects above |
| Blinking Planetary | .....A small and round planetary in western wing of Swan, 1690 ly away |
| Crescent Nebula | .....Small semicircular nebula 6 deg. SW of gamma Cyg. |
| Around NGC6914 | .....Small three reflection nebulae paralleling at 2deg. north of gamma Cyg. |
| Cocoon Nebula | .....Small Diffused Nebula near the boundary on Cepheus |
| M29 | .....Small open cluster 2 deg. south of gamma Cyg. |
| M39 | .....Scattered open cluster 7 degrees NE of North American Nebula |
| Sh2-97 | .....Dimmed 10'-sized emission nebula at 6deg. ENE of Albireo |
| Around Sh2-98 | .....Dimmed emission nebulae at 7deg. NE of Albireo |
| Diffused Nebula around eta Cyg(Sh2-101) | .....Filaments of reddish nebulae around the neck of Swan |
| Around Sh2-112, 115 | .....Two small diffused nebulae and surrounding nebulosities in NW of Deneb |
| Sh2-113, 114 | .....A degree-sized Filamentary circle nebula at 10° SE of Deneb, 12400ly away |
| Sh2-119 | .....Diffused reddish nebula about 2 deg. east of North American Nebula |
| Sh2-120, 121 | .....Two small reddish nebulae at 5 deg. north of North American Nebula |
| NGC7013 | .....Small spiral galaxy at tip of southern wing |
| vdB133 | .....10'-sized reflection nebula at 3.7deg. SSE of γ-Cyg |
 Scorpius |
 Sagittarius |
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Copyright(c) 2014 by Naoyuki Kurita, All rights reserved. |
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