| Constellation tour in Winter |
|
| Date & Time: | Dec 10 2021, from 26:37 to 26:46 JST(+0900) |
| Composed 4 shots with 3 minutes exposed | |
| Optical: | TAMRON 17-35mm Di OSD (f=28mm, stop: F3.5) |
| with Kenko Softon Clear & Starry Night filters | |
| Auto-guided with EYEBELL CD-1 portable Equatorial | |
| Digital Camera: | Canon EOS 550D (Remodeled) |
| Location: | Ooizumi, Hokuto city, Yamanashi pref. |
| Camera Settings: | Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456) |
| Sensitivity...ISO800 |
 Astroarts StellaNavigator |
Formerly, the lower southern sky in winter was occupied by a gigantic constellation "Argo Navis", the Argonauts' ship.
The constellation had a span of over 70 degrees in east-west direction, and was the largest asterism in the heavens exceeding Hydra, which is presently the largest one.
In the mid-18th century, Lacaille divided the older constellation into four smaller constellations: Carina, Pyxis, Vela, and Puppis. The constellation of Puppis represents the Stern of the Argo Navis. You can find it just southeast of Canis Major as a large and a bit warped square formed by 2nd or 3rd magnitudes. Puppis crosses the meridian at fairly lower sky in Japan, it might need clear sky to recognize the entire constellation. |
Guide for Deep Sky Objects| M46, M47 | .....Paralleled open clusters at NE region in Puppis |
| M93 | .....Medium-sized open cluster 2 degrees NE of zeta Pup, 3600 ly. away |
| NGC2298 | .....5'-sized globular cluster in western region, 30 thousand ly away |
| NGC2438 | .....Bright planetary nebula bathed in an open cluster M46 |
| NGC2467 | .....Open cluster & Nebulosity bathed in the Milky Way |
| NGC2451, NGC2477 | .....Pair of open clusters at south region in Puppis |
| NGC2539 | .....A 20'-sized open cluster at the northeast edge of the constellation |
| Sh2-299, Sh2-300 | .....Two parelleled diffused nebulae at 11deg. east of Sirius |
| Sh2-302 | .....Round & compact reddish nebula in western edge |
| vdB98 | .....Small reflection nebula at 6.4deg. ENE of δCMa |
| Gum Nebula | .....Vast supernova remnant in Milky Way of Puppis & Vela. |
 Canis Major |
 Monoceros |
 |
 |
Copyright(c) 2021 by Naoyuki Kurita, All rights reserved. |
| To top page | To Constellations index |