| Constellation tour in Autumn |
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| Date & Time: | Jan 29 2006, 19:49 JST(+0900), 20min. Exp. |
| Optical: | SMC PENTAX f=165mmF2.8, Aperture: F4.0 |
| with Cokin Diffuser-1 filter | |
| Auto-guided with TAKAHASHI JP Equatorial | |
| Camera: | PENTAX 67 |
| Film: | Ektachrome E200 (+1EV pushed) |
| Location: | Ooizumi, Hokuto city, Yamanashi pref. |
 Astroarts StellaNavigator |
Triangulum lies just Andromeda's left leg. You can easily find the snug isosceles triangle formed three stars with the third and fourth magnitudes.
Though the origin of Triangulum isn't known distinctly, has fairly long history registered in the Ptolemaic constellation.
Now, the shape of constellation is often applied a set square. The constellation contains one of Messier's objects, a faint face-on spiral galaxy of M33, it's one of major deep sky objects in the autumn skies like the Andromeda Galaxy (M31). |
Guide for Deep Sky Objects| M33 | .....Large and noticeable spiral galaxy, 2.6 million ly. away |
| NGC672, IC1727 | .....Two medium-sized spirals in edge of southwest |
| NGC784 | .....Medium spiral 2 deg SE of alpha Tri, 20 million ly. away |
| NGC925 | .....Bared galaxy 2 deg east of gamma Tri |
| NGC973, IC1815 | .....Small edge-on galaxy in east region, 200 million ly. away |
| Around NGC1060 | .....Small lenticular and companeon galaxies in eastern edge, 250 million ly. away |
| UGC1281 | .....Edge-on shaped dwarf galaxy at 1.5deg. north of alpha Tri, 180 million ly away |
| Arp 166 | .....Small interacting galaxy pair positioned at central region |
| Quasar 3C48 | .....Image & spectrum of a quasar just north of M33, 4.1 billion ly away |
 Pegasus |
 Cassiopeia |
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Copyright(c) 2006 by Naoyuki Kurita, All rights reserved. |
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