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Observation Settings

Or select it on the map:
This Earth map fragment is intended to illustrate celestial motion across the sky, emphasizing both bearing and elevational perspectives. The map's center point corresponds to the transit, showcasing celestial objects at their highest point, while elevation gradually decreases towards the map edges. This dynamic representation offers insights into the changing positions of celestial bodies with a focus on their bearing and elevational trajectories.
Your location: Santa Clara, United States
Timezone:
Latitude:
37.3541
Longitude:
-121.955

Double Star 16458+0835 Observation Details

16458+0835

16458+0835 Daily Motion


16458+0835 will be visible until October, 31, 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.

16458+0835 Visibility Timetable on February 14

16458+0835 Rise and Set Timetable

TimeElevation
Moon Rise, 15.6% illuminated 02:4645°
16458+0835 transit05:1861°
16458+0835 set11:44
Moon Set11:59-3°
Astrosession begin17:13-44°
Astrosession end03:3053°
Civil sunrise04:3160°
Sunrise04:5961°

Track 16458+0835 Position Throughout the Night

← Sat, 14 February 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 16458+0835 changing position in the night sky.

Where is 16458+0835 right now?

16458+0835 is located in the constellation Hercules, at right ascension 16h 45m 49s" and declination 08° 34' 57s. At the current time, it is above the horizon at an altitude of 33 degrees toward the west-southwest from your location, with an apparent magnitude of 5.33.

16458+0835 Star System Description

16458+0835 is Triple Star System located in constellation Hercules at coordinates RA: 16h 45m 49s", Dec: 08° 34' 57s.
The primary component has a magnitude of 5.33, while the secondary component has a magnitude of 9.29. They are separated by 1.2 arcminute at a position angle of 231 degrees. The brightness difference between the two components is 3.96 magnitudes, with the primary component being approximately 38.4 times brighter than the secondary.
Below is a table with star system details from the Washington Double Star (WDS) Catalog. This catalog is a comprehensive source of information on double and multiple star systems, providing key data on the positions, magnitudes, and separations of stellar components.

Technical Details of Star System 16458+0835

Property Value
Star System Identifier 16458+0835
System Type Triple Star System
Primary Star 43 Her
Right Ascension (RA) 16.76383 (16h 45m 49s")
Declination (Dec) 8.58258 (08° 34' 57s)
Magnitude (Primary) 5.33
Magnitude (Secondary) 9.29
Spectral Type (Primary/Secondary) K5III
Separation (Arcseconds) 74.6
Position Angle 231°
Discovery Year 1783
Last Observed 2016
Primary Proper Motion (Ra, Dec) -002+015
Secondary Proper Motion (Ra, Dec) -007-008
Number of Observations 28

16458+0835 Components

ComponentMagnitudeSeparation (arcseconds)Position Angle
AB9.2974.6231
BC12.3898.9134

The data presented in this table is sourced from the Washington Double Star (WDS) Catalog, a comprehensive repository of double and multiple star system information maintained by the U.S. Naval Observatory. We thank the WDS team for their continued efforts in providing accurate and detailed astronomical data.

Finder Chart for 43 Her

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Object name16458+0835
Field of view
Limiting magnitude
16458+0835 coordinates16.76383, 8.58258
Center coordinates16.76383, 8.58258

16458+0835 Passage Through Night

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Current position of 16458+0835

Time01:36
Latitude37.3541
Longitude-121.955
16458+0835 elevation33°
16458+0835 Azimuth-106°
Here you can see the current position of the 16458+0835 on the map, as well as its positions for rise and set. This tool allows you to track the 16458+0835's movement throughout the night, providing you with accurate and up-to-date information.

Annual motion of 16458+0835

Time
DateSun, 15 February 2026
Twighlight start17:12
Twighlight end03:24
Twighlight duration10h 13m
Rise22:45
Set11:36
Elevation at transit61°
Transit time05:11
Equatorial coordinatesRA: 16h 45m 49s", Dec: 08° 34' 57s
Magnitude5
ConstellationHercules
The graph illustrates the annual visibility pattern of a 16458+0835, providing a comprehensive overview of its daily appearances and transit times throughout the year.
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 16458+0835 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.
You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.

Astrometric & Physical Parameters of 16458+0835

Coordinates & Visibility

Right Ascension16.76383°
Declination8.58258°
Magnitude5.33
ConstellationHercules
Elevation33°
Azimuth-105.7°