Diadem Position and Visibility Tonight
Where is Diadem right now?
Diadem is located in the constellation Coma Berenices. Although Diadem is currently 70° above the horizon, it is not visible because it is daytime.
Diadem tonight
Diadem visibility on 2026-10-26
Diadem Visible from sunset until evening
Diadem rise and set timetable
| Time | Elevation | |
| Diadem transit | 10:01 | 70° |
Moonrise, 99.8% illuminated  | 15:47 | 13° |
| Sunset | 16:16 | 7° |
| Civil sunset | 16:44 | 2° |
| Diadem set | 16:55 | |
| Astronomical observing session begins | 17:45 | -9° |
| Diadem rise | 03:02 | |
| Astronomical observing session ends | 03:59 | 11° |
| Twilight end (−12°) | 04:29 | 17° |
| Civil sunrise | 04:59 | 23° |
| Sunrise | 05:27 | 28° |
| Moonset | 06:10 | 37° |
Track Diadem position throughout the night
← 26 October 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Diadem changing position in the night sky.
Finder Chart for Diadem
Diadem Passage Through Night
Double-click to unlock the map.
Current position of Diadem
| Time | 10:13 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Elevation | 70° |
| Azimuth | 189° |
Here you can see the current position of Diadem 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 Diadem Visible Throughout the Year?
Diadem will become visible again around November 9 after moving far enough from the Sun.
| Date | Mon, 26 October 2026 |
| Astronomical observing session begins | 17:40 |
| Astronomical observing session ends | 03:52 |
| Astronomical observing duration | 10h 12m |
| Rise | 03:02 |
| Set | 16:51 |
| Elevation at transit | 70° |
| Transit time | 09:57 |
| Equatorial coordinates | RA: 13h 09m 59s", Dec: 17° 31' 45s |
| Magnitude | 4 |
| Constellation | Coma Berenices |
The graph illustrates the annual visibility pattern of Diadem, 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 Diadem is visible throughout the year in a table with exact rise, transit, and set times for each date.
You can also see when Diadem is visible throughout the year in a table with exact rise, transit, and set times for each date.
Astrometric and Physical Parameters of Diadem
Coordinates and Visibility
| Right Ascension | 13h 09m 59s |
| Declination | 17° 31′ 46″ |
| Magnitude | 4.32 |
| Constellation | Coma Berenices |
| Elevation | 70° |
| Azimuth | 188.6° |
| Spectral type | F5V |