NGC 4535 from remote
In 2024, I received a second dataset of the spiral galaxy NGC 4535 from Telescope Live, acquired with a telescope in Chile. The high-quality data provided excellent resolution and depth, allowing the galaxy’s delicate spiral structure and numerous star-forming regions to be revealed in remarkable detail. This dataset offered a significantly closer and more detailed view of one of the most beautiful face-on spiral galaxies in the Virgo Cluster.
NGC 4535 is located in the constellation Virgo at a distance of approximately 50 million light-years. It is classified as a barred spiral galaxy (SBc) and is often nicknamed the Lost Galaxy because its diffuse outer spiral arms can be difficult to detect visually despite the galaxy’s relatively bright overall magnitude. Long-exposure astrophotography, however, reveals an extensive and highly structured disk filled with intricate detail.
One of the most striking features of NGC 4535 is its elegant spiral pattern. The galaxy’s arms are lined with numerous bright H II regions, indicating active star formation throughout the disk. These stellar nurseries contain young, massive stars whose ultraviolet radiation ionizes the surrounding hydrogen gas, producing the characteristic reddish glow visible in deep images. Dark dust lanes weave through the spiral arms, creating a beautiful contrast against the bright stellar background.
As a member of the Virgo Cluster, NGC 4535 resides in one of the nearest large galaxy clusters to the Milky Way. Its environment provides astronomers with an opportunity to study how galaxies evolve within dense galactic communities. Although NGC 4535 appears relatively undisturbed compared to some other Virgo Cluster members, its location within the cluster means that gravitational interactions and environmental effects may have influenced its evolution over billions of years.
The galaxy has also been the host of several observed supernovae, including SN 1985B and SN 2008aq. Such events contribute to the enrichment of the interstellar medium with heavy elements and play an important role in the ongoing cycle of stellar evolution.
Deep images reveal not only the bright inner structure of NGC 4535 but also faint outer extensions of its spiral arms and a wealth of distant background galaxies scattered throughout the field. The Telescope Live dataset allowed these subtle structures to be captured with exceptional clarity, producing an image that highlights both the scientific significance and visual beauty of this magnificent Virgo Cluster spiral galaxy.
For the Telescope Live data the calibration and registration and the final processing was done with PixInsight. The result was as follows:


The images were taken with the following eqipment:
- Date: 2024
- Location: El Sauce Observatory, Chile
- Telescope: Planwave CDK24
- Focal length [mm]: 3962
- Focal ratio: 6.5
- Mount: Mathis MI-1000/1250
- Camera: QHY 600M Pro
- Filter: L:R:G:B
- Exposure time [min]: 105:75:100:100
- Resolution: 0.39″/px (2×2 binning)

Leave a reply