Andromeda VII - a dwarf galaxy in Cassiopeia (Wim van Berlo)

Celestial hemisphere: Northern · Constellation: Andromeda (And)

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Andromeda VII - a dwarf galaxy in Cassiopeia

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Andromeda VII - a dwarf galaxy in Cassiopeia

Unexpected clear skies and not in the mood for a new long time project, so what do you do? You go for the faint objects. That makes perfect sense, doesn't it.Yesterday night we had a few hours of clear-ish skies, so I pointed my scope at this faint dwarf galaxy. It is a satellite of the Andromeda galaxy, hence its name: Andromeda VII. This spheroidal galaxy is situated in the constellation Cassiopeia, hence its other name: Cassiopeia dwarf. Scientists refer to it as PGC 2807155.I could find only three images in a Google search, one from the HST, one from the Keck telescope, and a rather blurry one from an amateur.This galaxy was discovered in 1998 by Russian and Ukrainian astronomers, and originally named the Cassiopeia Dwarf Spheroidal Galaxy. It is located 1 600 kLy distant, and being behind the Milky Way plane, it is obscured by dust and stars.

There is dust from our own galaxy in the image, hence the uneven, mottled background (which actually is the foreground, of course).

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Andromeda VII - a dwarf galaxy in Cassiopeia

Andromeda VII - a dwarf galaxy in Cassiopeia

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Andromeda VII - a dwarf galaxy in Cassiopeia

Andromeda VII - a dwarf galaxy in Cassiopeia

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