Part 2 of 3:
I've separated my imaging session of MWP1 and ALV1 into individual posts because I thought they were interesting on their own. There are few standalone images of ALV1 and both are fairly recent discoveries - MWP1 in 1993 and ALV1 in 2009.
A widefield image of both MWP1 and ALV1 is here:
MWP1 and ALV1_wider field ALV1 (discovered by Portuguese amateur Filipe Alves in 2009) is a faint planetary nebula [candidate]. Some info on this nebula can be found in the paper "Discovery of New Faint Northern Galactic Planetary Nebulae" written by A. Acker, et al in 2012. ALV1 was discovered while imaging the binary planetary nebula MWP1 (C. Motch, K. Werner and M. Pakull). While not much is revealed about ALV1, the paper discusses "a very blue star of B ∼ 18.2 is found approximately 12′′ away from the geometrical centre of the nebula and could possibly be the central star of this object, thereby increasing the possibility of it being a PN. We note that it is not unusual to find a slightly offset central star: this could be related to ISM [interstellar medium]-wind interaction, high proper motion of the central star, the presence of a binary system at the centre, or simply some asymmetry of the nebula itself." Interesting side note: this paper also announced the discovery of objects Ou1 through Ou4 (the Squid Nebula) by French imager Nicolas Outters in 2011.
The blue central star can be seen in the image even with minimum RGB data collected.
Both MWP1 and ALV1 are generally of equal relative brightness in Ha and OIII (see Revisions). In a wider view, the field contains clouds and bands of Ha and OIII. Some SII data was collected, but only showed faintly within the Ha cloud in the wider field.
Previous image of MWP1 can be found here:
https://astrob.in/k16myj/0/Imaged over several nights: Aug 10, 30; Sep 1, 4, 9, and 19, 2022.
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