The main focus tonight was the Flaming Star Nebula, IC405 in Auriga. Apart from a little cloud around 6-7, it was mostly clear until thicker clouds rolled in around midnight. So, I was able to get 39 x 240 s exposures at ISO 1600:
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| IC405 Flaming Star Nebula in Auriga |
Wikipedia: IC 405 (also known as the Flaming Star Nebula, SH 2-229, or Caldwell 31) is an emission and reflection nebula in the constellation Auriga, surrounding the bluish star AE Aurigae. It shines at magnitude +6.0. Its celestial coordinates are RA 05h 16.2m dec +34° 28′. It surrounds the irregular variable star AE Aurigae and is located near the emission nebula IC 410, the open clusters M38 and M36, and the K-class star Iota Aurigae. The nebula measures approximately 37.0' x 19.0', and lies about 1,500 light-years away from Earth. It is believed that the proper motion of the central star can be traced back to the Orion's Belt area. The nebula is about 5 light-years across.
Almost first quarter, so the Moon was a good target earlier, at around 5:30 pm. Most of the images are based on 1000 frames, aligned and stacked in Registax:
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| Almost first quarter |
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| Mare Serenitatis |
The Sea of Serenity, with the craters Eudoxus and Aristoteles visible upper left.
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| Mare Vaporum |
The Sea of Vapours, with the crater Manilius prominent centre top. Notice Rima Ariadaeus in the centre. This is a linear rille on the Moon at 6.4°N 14.0°E. It is named after the crater Ariadaeus, which marks its eastern end. It is over 300 km long and is categorized as a straight rille because of its linear nature.
Almost in the centre is the crater Julius Caesar. Julius Caesar is a lava-flooded lunar impact crater with a low, irregular, and heavily worn wall. Its diameter is 85 km. It was named after Roman statesman Julius Caesar. It is located to the west of Mare Tranquillitatis, and directly southeast of the crater Manilius on the Mare Vaporum. To the east is the rounded Sosigenes.
The interior floor of Julius Caesar is relatively level, especially in the southwest half. The northern half of the interior has a lower albedo (darker) than the south. Most likely the floor has been covered or modified by ejecta from the impact that created the Imbrium basin. There are a number of crater remnants overlapping the rim along the south and northeast edges. A low ridge crosses the floor across the northeast sections of the crater.
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| Lacus Mortis |
The Lake of Death, just right of top centre, with the crater Burg in the centre of it. Mare Frigoris is to the left, almost top centre.
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| Near the South Pole. |
The triplet of craters to the upper left includes Abenezra and Azophi. The very dark crater upper centre is Gemma Frisius and the prominent crater with the central mountain is Maurolycus.
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| Theophilus, Cyrillus and Catharina |
The triplet is to the upper right.
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