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Sky-Tonight.com / Nebulae and Deep-Sky Objects / IC4591

IC4591 Position and Visibility Tonight

IC4591

Where is IC4591 right now?

IC4591 is located in the constellation Scorpius. Although IC4591 is currently 14° above the horizon, it is not visible because it is daytime.
Twilight begins at 18:26 local time. At that moment, IC4591 will be 18° above the horizon toward the south-west.
Open the interactive guide to IC4591’s position and path tonight

IC4591 visibility on 2026-09-07

IC4591 Visible from sunset until early morning

IC4591 rise and set timetable

TimeElevation
IC4591 rise11:51
Moonset14:5622°
IC4591 transit16:1525°
Sunset17:2723°
Civil sunset17:5521°
Twilight start18:2618°
Astronomical observing session begins18:5814°
IC4591 set20:39
Moonrise, 21% illuminated 23:21-29°
Astronomical observing session ends03:13-74°

Track IC4591 Position Throughout the Night

← 7 September 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe IC4591 changing position in the night sky.

IC4591 — Image Gallery

DSS Blue

IC4591 — blue-filter image
Blue images highlight younger, hotter stars that emit strongly at blue wavelengths.

DSS Red

IC4591 — red-filter image
Red images reveal older, cooler stars and emission nebulae glowing strongly in hydrogen-alpha light.

DSS Near-Infrared

IC4591 — near-infrared image
Near-infrared images penetrate dust that obscures visible light and reveal hidden structures.

DSS Composite Image

IC4591 — composite color image
DSS color images combine blue, red and often near-infrared exposures into a composite view.

The images come from the Digitized Sky Survey 2 (DSS2), produced at the Space Telescope Science Institute (STScI) under contract with NASA, using data from UK Science and Technology Facilities Council (STFC), European Southern Observatory (ESO), National Geographic Society-Palomar Observatory Sky Survey (POSS II).

Special thanks to National Optical Astronomy Observatory (NOAO), Royal Observatory, Edinburgh, California Institute of Technology for their significant contributions.

Finder Chart for IC4591

Double-click to unlock the map.
Object nameIC4591
Field of view
Limiting magnitude
IC4591 coordinates16.20504, -27.92775
Center coordinates16.20504, -27.92775

IC4591 Passage Through Night

Double-click to unlock the map.

Current position of IC4591

Time13:29
Latitude37.3541
Longitude-121.955
Elevation14°
Azimuth143°
Here you can see the current position of IC4591 on the map, as well as its positions for rise and set. This tool lets you track its movement throughout the night with accurate, up-to-date information.

When Is IC4591 Visible Throughout the Year?


IC4591 will remain visible until October 29, when it moves too close to the Sun and temporarily disappears from the night sky. Time
DateMon, 7 September 2026
Twilight start18:54
Twilight end03:07
Twilight duration8h 13m
Rise11:47
Set20:35
Elevation at transit25°
Transit time16:11
Equatorial coordinatesRA: 16h 12m 18s", Dec: -27° 55' 39s
Magnitude-
ConstellationScorpius
The graph illustrates the annual visibility pattern of IC4591, including its daily appearances and transit times. The vertical axis shows the hours of the day and the horizontal axis spans the year. The reddish area marks when the object is above the horizon, while the white line marks its daily transit.
You can also see when IC4591 is visible throughout the year in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of IC4591

Coordinates and Visibility

Right Ascension16h 12m 18s
Declination-27° 55′ 40″
Magnitude
ConstellationScorpius
Elevation13.9°
Azimuth142.7°

Data Credits

The deep-sky information on this page comes from the OpenNGC project developed by Matteo Verga. OpenNGC provides detailed catalog data for nebulae, galaxies, clusters and other deep-sky objects.

For details or contributions, visit the official repository: OpenNGC GitHub.