Naked Eye Comet, Neowise.

Mark 1 eyeball, 5 s exposures or thereabouts , with 55mm Nikon lens , camera on a tripod.

Comet Neowise

Comet Neowise

Jupiter, Saturn and the Cygnus Wall

Still no nautical night but hey ho.

Jupiter was visible just after midnight, but low on the southern horizon, along with Saturn. I have the wrong scope for planets but wanted to see what the ZWO camera would be like so took a few thousand frames and stacked in Registax. Only Luminance, so no colour this time. Jupiter's mooons are a bonus.

The main target was the Cygnus Wall in Cygnus, but given the amount of twilight, in total I only have around 4 hours  in LRGB, at the usual gain od 139 and exposures of 118s. The blue streak is Deneb, I think, its brightness creeping into the lower right corner.

Wikipedia:  The North America Nebula covers an area of more than four times the size of the full moon, but its surface brightness is low, so normally it cannot be seen with the unaided eye. Binoculars and telescopes with large fields of view (approximately 3°) will show it as a foggy patch of light under sufficiently dark skies. However, using a UHC filter, which filters out some unwanted wavelengths of light, it can be seen without magnification under dark skies. Its shape and reddish color (from the hydrogen Hα emission line) show up only in photographs of the area.

The portion of the nebula resembling Mexico and Central America is known as the Cygnus Wall. This region exhibits the most concentrated star formation. The North America Nebula and the nearby Pelican Nebula (IC 5070) are parts of the same interstellar cloud of ionized hydrogen (H II region). Between the Earth and the nebula complex lies a band of interstellar dust that absorbs the light of stars and nebulae behind it, and thereby determines the nebula's apparent shape. The distance of the nebula complex is not precisely known, nor is the star responsible for ionizing the hydrogen so that it emits light. If the star inducing the ionization is Deneb, as some sources say,[citation needed] the nebula complex would be about 1,800 light-years' distance, and its absolute size (6° apparent diameter on the sky) would be 100 light-years.

Cave Nebula in Cassiopeia

I came across this in the 'romp' and even though the conditions were poor decided to have a go at a stacked colour image. This is based on 22 mins in L,R,G and B, 114 s exposures. I will revisit to get better data when nautical night returns.

Summer Romp in Nautical Twilight

A warm summers night, nicer outside than insdie a hot house. No nautical night, so I thought I would just browse the heavens, keeping  a single frame as a souvenir of my tour. The colour image is based on single frames of L, R, G, B.  Usual exposure length around 3 mins.

Brocchi's Cluster (part of )

Cave Nebula in Cygnus

Dumbbell Nebula

IC 1848 and IC1871

M8 Lagoon Nebula

M11 Wild Duck Cluster

M16 Eagle Nebula

M17 Omega Nebula

M18

M0 Trifid Nebula

M22

M56

M71

M57 Ring Nebula

Part of the Veil Nebula

Pelican Nebula in Cygnus

This is based on 114s subs, around 60 mins in L,R, G and B. First time I have used the ZWO camera with the Skywatcher refractor.

Wikipedia:The Pelican Nebula (also known as IC 5070 and IC 5067[1]) is an H II region associated with the North America Nebula in the constellation Cygnus. The gaseous contortions of this emission nebula bear a resemblance to a pelican, giving rise to its name. The Pelican Nebula is located nearby first magnitude star Deneb, and is divided from its more prominent neighbour, the North America Nebula, by a molecular cloud filled with dark dust.

The Pelican is much studied because it has a particularly active mix of star formation and evolving gas clouds. The light from young energetic stars is slowly transforming cold gas to hot and causing an ionization front gradually to advance outward. Particularly dense filaments of cold gas are seen to still remain, and among these are found two jets emitted from the Herbig–Haro object 555. Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will leave something that appears completely different.

Equipment: Skywatcher ED80 at F/7.5,  Skywatcher EQ6 Pro GEM, ZWO 1600MM Pro, ZWO EFW with ZWO LRGB filters, QHY5IIC guide camera on Skywatcher 9 x 50 finderscope

NGC 6946 Fireworks Galaxy in Cepheus

Subs of 114s, around an hour in each of L,R,G and B. Moon was around 4 days old and not a lot of astronomical night!

Wikipedia:

NGC 6946 (also known as the Fireworks Galaxy or Caldwell 12) is a face-on intermediate spiral galaxy with a small bright nucleus, whose location in the sky straddles the boundary between the northern constellations of Cepheus and Cygnus. Its distance from Earth is about 25.2 million light-years or 7.72 megaparsecs.

Various unusual celestial objects have been observed within NGC 6964. This includes the so-called 'Red Ellipse' along one of the northern arms that looks like a super-bubble or very large supernova remnant, and which may have been formed by an open cluster containing massive stars. There are also two regions of unusual dark lanes of nebulosity, while within the spiral arms several regions appear devoid of stars and gaseous hydrogen, some spanning up to two kiloparsecs across. A third peculiar object, discovered in 1967, is now known as "Hodge's Complex". This was once thought to be a young supergiant cluster, but in 2017 it was conjectured to be an interacting dwarf galaxy superimposed on NGC 6964.

NGC 6888 The Crescent Nebula in Cygnus

The image is based on 114s subs, around 2 hours in each of L, R , G and B. Processed in DSS, PS and Lightroom.

APOD: NGC 6888, also known as the Crescent Nebula, is a cosmic bubble about 25 light-years across, blown by winds from its central, bright, massive star. This sharp telescopic portrait uses narrow band image data that isolates light from hydrogen and oxygen atoms in the wind-blown nebula. The oxygen atoms produce the blue-green hue that seems to enshroud the detailed folds and filaments. Visible within the nebula, NGC 6888's central star is classified as a Wolf-Rayet star (WR 136). The star is shedding its outer envelope in a strong stellar wind, ejecting the equivalent of the Sun's mass every 10,000 years. The nebula's complex structures are likely the result of this strong wind interacting with material ejected in an earlier phase. Burning fuel at a prodigious rate and near the end of its stellar life this star should ultimately go out with a bang in a spectacular supernova explosion. Found in the nebula rich constellation Cygnus, NGC 6888 is about 5,000 light-years away.

Equipment: Celestron 9.25 XLT at F10,  Skywatcher EQ6 Pro GEM, ZWO 1600MM Pro, ZWO EFW with ZWO LRGB filters, QHY5IIC guide camera on Skywatcher 9 x 50 finderscope