Celestial hemisphere:  Northern  ·  Constellation: Aquila (Aql)
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The Hairpin and the Orb, Peter Goodhew
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The Hairpin and the Orb

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The Hairpin and the Orb, Peter Goodhew
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The Hairpin and the Orb

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Description

The hairpin-like object is known as Parsamian 21. It is one of 23 cometary reflection nebulae discovered by the Armenian astronomer Elma Parsamian in 1965.
It surrounds a young low-mass star which is going through the accretion of circumstellar material. It is one of a unique class of pre-main-sequence stars that have undergone a major outburst in optical light during a temporary, but significant increase of mass accretion rate from the circumstellar disk onto the protostar. These stars are known as FU Orionis objects (FUors). Parsamian 21 is also surrounded by small dark cloud that obscures stars behind it.

The orb-like object is a faint planetary nebula known as IPHASX J192847.1+093439 which consists of two interlocking shells. Most of the detailed structure is visible in the Ha wavelength, whereas the OIII signal is very faint and diffuse. It was independently discovered by French amateur astronomer Laurent Ferrero and is also known as Fe 1. It is 1 arc minute in diameter.

These objects are in the constellation Aquila.

I believe this is the first true-colour image of Fe 1, and the first time that both objects have been photographed together.

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