| Constellation tour in Summer |
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| Date & Time: | Mar 8 2019, from 27:17 to 27:38 JST(+0900) |
| Composed 7 shots with 2 minutes exposed | |
| Optical: | AF zoom-Nikkor ED 80-200mmF2.8 (f=105mm, stop:F4.0) |
| with Kenko SOFTON[A] filter | |
| Auto-guided with TAKAHASHI JP 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...ISO1600, White Balance...Daylight |
 Astroarts StellaNavigator |
Corona Borealis, has another name of the Northern Crown, is made up by seven stars that lines up like a semicircle.
The constellation is found nearly midway between Arcturus and Vega.
Member stars are not so bright except for Alphecca, or Gemma (alpha Coronae Borealis), but it's pretty obvious because there aren't so many bright ones around. It's the crown that was given Ariadne by Dionysus. |
Guide for Deep Sky Objects| Abell 2061 | .....Galaxy cluster including about 70 members, about 1 billion ly. away. |
| Corona Cluster(Abell 2065) | .....A galactic cluster including 100 galaxies, 860 million ly away. |
| Abell 2162 | .....Small-scaled galaxy cluster hidden at 2.5deg. east of iota CrB, 425 million ly away |
 Serpens & Ophiuchus |
 Corona Austrina |
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Copyright(c) 2019 by Naoyuki Kurita, All rights reserved. |
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