Caldwell 46, also known as NGC 2261 or Hubble’s Variable Nebula is a variable nebula located in the constellation Monoceros. It got its nickname from observations that Edwin Hubble did during the middle of the previous century, in which he discovered that both shape and brightness changes over time. One explanation is that dark clouds block light from the central illuminating star from time to time, in a timespan of weeks or months.

The Orion Nebula is one of those iconic objects that wants to be in any astrophotographers portfolio. This object was the first image taken here at AstroWorldCreations, back in 2018. A lot has changed since then, and a revisit of this impressive nebula was long overdue. While M42 is the actual Orion Nebula, the neighbouring M43 is always shot in the same image, but goes by the name or Mairan’s Nebula.

Arp 135, also known as NGC 1023 or the Perseus Lenticular Galaxy, is a member of the NGC 1023 group of galaxies in the Local Supercluster. Distance measurements vary from 30 to 64 million light-years. Arp classifies this object under “Galaxies with Nearby Fragments". Arp 135 is a barred lenticular galaxy, with a barred spiral structure still visible in an otherwise elliptical structure. Both the barred structure and the accompanying (blue-ish) satellite galaxy NGC1023A are well visible in this image.

M78 is a reflection nebula in the constellation Orion. It is the brightest diffuse reflection nebula in a group that includes NGC 2064, NGC 2067, and NGC 2071, all part of the Orion B molecular cloud complex. M78 is located approximately 1,350 light-years from Earth. M78 was discovered by Pierre Méchain in 1780, and included in Charles Messier's catalog of comet-like objects that same year.

Arp 273 is a pair of interacting galaxies, 300 million light years away in the constellation Andromeda. The larger of the spiral galaxies, known as UGC 1810, is about five times more massive than the smaller galaxy, known as UGC 1813. It is thought that the smaller galaxy has actually passed through the larger one.

Caldwell 43 (also known as NGC 7814 or UGC 8) is a spiral galaxy about 40 million light-years away in the constellation Pegasus. The galaxy is seen edge-on from Earth. It is sometimes referred to as "the little sombrero", a miniature version of Messier 104. The star field behind NGC 7814 is known for its density of faint, remote galaxies. It's among the few bright galaxies that exhibit modest distortion and twisting of the galaxy's plane in optical wavelengths.

Arp77 consists of the larger barred spiral galaxy NGC 1097 and its smaller companion, the elliptical galaxy NGC 1097A. Located approximately 45 million light-years away in the constellation Fornax, these galaxies are engaged in a gravitational interaction that has visibly distorted their structures. NGC 1097, classified as a Seyfert galaxy, hosts an active galactic nucleus powered by a supermassive black hole, while the interaction with NGC 1097A has sparked intense starburst activity and created a striking ring of star formation around its core.