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Object: ARP 76 (M90, NGC 4569) |
Date: 2015 February 27
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| Peculiarity: Spiral with large, high surface-brightness (HSB) companion on arm. | |
| Constellation: Virgo | Time & altitude: 04.40 UT 41º |
| Catalogue data: | Seeing (5 high): 3/5 |
| R.A: 12h 37m | Transparency (5 high): 3/5 |
| Dec: +13º 11 | Telescope: 0.5m f4.1 Dob. |
| Magnitude: 10.3 |
Eyepiece: 17mm Ethos x120 8mm Ethos x260 |
| Galaxy size (mins): 9.7×4.4 & 2×1 | Filters: Lumicon deep sky made no improvement. |
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Notes: Easy, bright oval elongated more than 3:1 NE-SW. Stellar nucleus set in a bright core. There were indications of fine dark lanes or similar structure on the E side of the nucleus, suggesting a spiral. These features in the drawing are indicative only, being too fine and delicate to be able to make an accurate record. There is a bright knot in the halo to the SW. I thought the neighbour galaxy IC 3583 to be much fainter than its catalogue magnitude of 13.3. It was just a barely detectable haze, bottom centre in the drawing. |
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