Herschel's Jewel Box (NGC4755) Observation Details
NGC4755 Daily Motion
NGC4755 is said to be "never-rising." It is always below the horizon and remain out of view, regardless of the time of year or night.NGC4755 will be visible until January, 1, when it will move too close to the Sun. During this time, its proximity to the Sun will cause it to disappear from the night sky, making it unobservable for a while.
NGC4755 Visibility Timetable on February 23
NGC4755 Rise and Set Timetable
| Time | Elevation | |
| NGC4755 is always below the horizon | - | |
| Moon Rise, 34.4% illuminated | 03:37 | -10° |
| Moon Set | 12:17 | -56° |
| Astrosession begin | 19:46 | -44° |
| NGC4755 transit | 03:11 | -10° |
| Astrosession end | 05:43 | -15° |
Track NGC4755 Position Throughout the Night
← Sun, 23 February 2025 →
| Time | |
| Altitude | |
| Azimuth |
NGC4755 Image Gallery
DSS Blue
DSS Red
DSS Near-Infrared
DSS Composite image
The photos are taken from the Digitized Sky Survey 2 (DSS2), which was produced at the Space Telescope Science Institute (STScI) under NASA contract, using data from the UK Science and Technology Facilities Council (STFC), the European Southern Observatory (ESO), and the National Geographic Society-Palomar Observatory Sky Survey (POSS II).
Special thanks to the National Optical Astronomy Observatory (NOAO), the Royal Observatory, Edinburgh, and the California Institute of Technology for their significant contributions.
Finder Chart for NGC4755
| Object name | NGC4755 |
| Field of view | |
| Limiting magnitude | |
| NGC4755 coordinates | 12.89363, -60.35631 |
| Center coordinates | 12.89363, -60.35631 |
NGC4755 Passage Through Night
Current position of NGC4755
| Time | 11:49 |
| Latitude | 39.9625 |
| Longitude | -83.0061 |
| NGC4755 elevation | -53° |
| NGC4755 Azimuth | 140° |
Annual motion of NGC4755
| Date | Sun, 23 February 2025 |
| Twighlight start | 19:42 |
| Twighlight end | 05:38 |
| Twighlight duration | 10h 56m |
| Rise | NGC4755 is always down |
| Set | NGC4755 is always down |
| Elevation at transit | -10° |
| Transit time | 03:11 |
| Equatorial coordinates | RA: 12h 53m 37s", Dec: -60° 21' 22s |
| Magnitude | - |
| Constellation | Crux |
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the NGC4755 is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
Data Credits
The nebulae information on this page is sourced from the OpenNGC project, developed by Matteo Verga. OpenNGC provides detailed data on the NGC catalog, which is a valuable resource for exploring deep-sky objects such as nebulae.
For more details or to contribute to OpenNGC, visit the official GitHub repository: OpenNGC on GitHub.